Dell E190Sf Service manual

Service Manual

Service Manual

LCD Monitor E190Sf

- 0 -

1

1 1.0

Service Manual Versions and Revision

2009/02/16

Revision

Initial Release

Copyright

Copyright 2009 InnoLux Display. Corp. Ltd

All Rights Reserved

This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of Foxconn Tech. Corp. Ltd.

Dell E190Sf Service Manual

Service Manual

Table of Contents

CHAPTER 1- PRECAUTIONS & SAFETY NOTICES .....................................................................................................................

0H

3

1.

SAFETY PRECAUTIONS ....................................................................................................................................................

2.

PRODUCT SAFETY NOTICE ..............................................................................................................................................

3.

SERVICE NOTES..................................................................................................................................................................

1H

3

2H

3

3H

3

CHAPTER 2- SERVICE TOOLS & EQUIPMENT REQUIRED .....................................................................................................

4H

4

CHAPTER 3- CIRCUIT THEORY ......................................................................................................................................................

5H

5

5.

6.

7.

8.

1.

2.

3.

4.

B LOCK D IAGRAM ...................................................................................................................................................................

E LECTRONIC C IRCUIT T HEORY ...............................................................................................................................................

FACTORY PRESET TIMING TABLE ................................................................................................................................

P OWER O N /O FF S EQUENCY ..................................................................................................................................................

8H

9H

6H

7H

5

5

11

11

D-SUB C ONNECTOR P IN A SSIGNMENT ................................................................................................................................. 12

AC O UTLET P IN A SSIGNMENT .............................................................................................................................................. 12

I NNER C ONNECTOR P IN A SSIGNMENT ...................................................................................................................................

10H

13

K EY P ARTS P IN A SSIGNMENTS .............................................................................................................................................. 14

CHAPTER 4- DISASSEMBLY & ASSEMBLY .................................................................................................................................

11H

18

1.

2.

3.

E XPLODED D IAGRAM ...........................................................................................................................................................

12H

18

E190S F D ISASSEMBLY B LOCK .............................................................................................................................................. 19

A SSEMBLY B LOCK ................................................................................................................................................................ 20

CHAPTER 5- TEST AND ADJUSTMENT ........................................................................................................................................ 21

5.

6.

7.

8.

1.

2.

3.

4.

F UNCTION KEY D EFINITIONS ................................................................................................................................................

13H

21

OSD C ONTROL ...................................................................................................................................錯誤! 尚未定義書籤。

F ACTORY M ODE I NTRODUCTION ...........................................................................................................................................

B URN IN PATTERN .................................................................................................................................................................

A UTO C OLOR B ALANCE (A UTOMATICALLY CALIBRATE CHIP ADC PARAMETER BY USING CHIP INTERNAL DAC.)................

EDID (R EWRITE EDID DATA TO EEPROM).........................................................................................................................

U PLOAD FIRMWARE TO MCU VIA VGA C ABLE ....................................................................................................................

A FTER REPAIR , TO ENSURE THE QUALITY YOU SHOULD DO THE FOLLOWING TEST AND ADJUSTMENT . ...................................

14H

22

15H

22

16H

22

17H

23

18H

23

19H

25

CHAPTER 6- TROUBLE SHOOTING..............................................................................................................................................

20H

25

1.

2.

3.

4.

5.

6.

C OMMON A CKNOWLEDGE ....................................................................................................................................................

N O P OWER & P OWER LED O FF ............................................................................................................................................

P OWER LED A MBER .............................................................................................................................................................

22H

B ACKLIGHT CAN ’ T BE TURNED ON ........................................................................................................................................ 27

N O PICTURE & B ACKLIGHT ON .............................................................................................................................................

24H

21H

25

26

23H

26

29

A T 32GRAY SCALE PATTERN , COLOR LOST IN SOME SCALE ................................................................................................... 29

7.

D IAGNOSTIC T EST P ATTERN .................................................................................................................................................. 29

CHAPTER 7- RECOMMENDED PART LIST ................................................................................................................................. 32

ATTACHMENT 1- BILL OF MATERIAL.........................................................................................................................................

25H

34

ATTACHMENT 2- SCHEMATIC.......................................................................................................................................................

26H

44

ATTACHMENT 3- PCB LAYOUT ..................................................................................................................................................... 54

2

Service Manual

Chapter 1- PRECAUTIONS & SAFETY NOTICES

1. SAFETY PRECAUTIONS

This monitor is manufactured and tested on a ground principle that a user’s safety comes first.

However, improper used or installation may cause damage to the monitor as well as to the user.

WARNINGS: z This monitor should be operated only at the correct power sources indicated on the rating label on the rear cover of the monitor. If you’re unsure the power supply in your residence, consult your local dealer or Power Company. z Use only the specified power cord that comes with this monitor. z Do not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor should only be repaired by a qualified technician. z Do not remove the monitor cabinet. There is high-voltage parts inside that may cause electric shock to human bodies. z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician. z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable immediately and consult your closed dealer. z Always unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply non-ammonia based cleaner onto the cloth, not directly onto the class screen. z Do not place heavy objects on the monitor or power cord.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special safety visual inspections and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Before replacing any of these components read the parts list in this manual carefully. The use of substitute replacement parts, which do not have the same safety characteristics as specified in the parts list, may create shock, fire, or other hazards.

3. SERVICE NOTES z When replacing parts on circuit boards, clamp the solder wires around terminals before soldering. z Keep wires away from high voltage, high temperature components and sharp edges. z Keep wires in their original position so as to reduce interference. z Adjustment of this product please refers to the user’ manual. z Use Pb free solder wire for circuit board preparation.

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Service Manual

Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED

1. SIGNAL GENERATOR

2. MULTIMETER

3. SCREW DRIVER

4. OSCILLOSCOPE

5. Soldering IRON

6. SOLDER (Lead free, RoHS compliance)

7. Color Analyzer

8. Fox_VISP_Programmer

9. Fox_VEDID_Programmer

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Service Manual

Chapter 3- CIRCUIT THEORY

1. Block Diagram

This Block is comprised of interface board and switching power supplier board which is included by inverter for CCFL

Brightness Control

ON/OFF Control

+5V DC output

+12V DC output

Snubber

&Schottky

Snubber

&Schottky

Inverter

PWM IC

Power

Transformer

Feedback

MOSFET

Feedback

Control

Rectifier&

Filter

Circuit

Power

MOSFET

Photocoupler

AC Line Filter

Power PWM

Control IC

AC Input

90V~264V

2. Electronic Circuit Theory

2.1 Inverter PWM circuit

2.1.1 Inverter Control circuit operations:(fig.2)

Fig.2

DC_5V through R1 and C1 will provide power for U1 on the pin2(VDDA),When the voltage at VDDA is less than ~3.4V,the IC will enter the lockout mode. The IC will resume operation when the voltage at pin

VDDA exceeds an approximate 3.8V threshold.

Pin3(SEL) used to select appropriate drive topologies,connecting pin SEL to GED shows the IC in the

5

Service Manual push-pull configuration..

SSTCMP(pin14) applys the soft-start function and the loop compensation funtion.C5 at SSTCMP compensates the feedback loop and provides good transient response to load changes.

When the IC is enabled,it starts from the strinking mode and the TIMER(pin8) is activated.During lamp ignition,if the voltage at pin SSTCMP exceeds an approximate 2.0V threshold,the drive frequency will swith from stinking frequency to the operation frequency, The striking frequency is determined by (R4& R5) connected to Pin 4(RT1)and Pin5(RT). The operating frequency is determined just by R4.

Applying a voltage level greater than 2V from IF BD to pin6(PWM) can enable the IC,Once the voltage less than ~1.0V for longer than 20ms will disable the IC.

Once the lamps are ignited and the voltage at pins ISEN1(pin9),ISEN2(pin10),OLP1(pin12),and

OLP2(pin13) all exseed approximately 0.8V,the IC enters the normal operation mode and the PWM dimming control is actived. During start up, ISEN1 (pin9and pin10) senses the voltage on the transformer secondary. If no current is sensed approximately 2 seconds, U1 shuts off. re used to limit current. C3 is used to dump noise.

DRV1 and DRV2 of U1 are used to drive Q1. DRV1 and DRV2 are controlled by build-in PWM IC.

Q1 is switched which has two build-in IGBTs. The working principle of circuit of T1, the same to circuit of

Power.

The voltage signal on negative pole of D1 sensed through R7/R8 comes to Pin11 of U1 VSEN (Lamp

Current Detection & Control). The CCFL current is detected through R12/R21 and reaches a regulated value.

The CCFL current detected at resistor R12/R21 is converted to a voltage level and input to the ISEN1/2

Once the CCFLs are ignited and current is sensed through resistor R12/R21, performs the loop compensation function. The voltage at IC pin12 controls the drive duty cycle of the power MOSFETs to regulate the CCFL current.

2.1.2 Output Circuit and Protection Circuit operations:(fig.3)

Fig.3

The transformer (T1) secondary winding leakage inductance and output capacitance(C22) forms a lower pass filter,which converts the square-wave driving signal into a sinusoidal output voltage signal for

CCFL.

The over-voltage protection feature is implemented by using an extermal capacitor devider(C20/C21) to sense the output voltage.The divide-down voltage signal is sent to the IC Pin11(VSEN) ,thus regulating the output voltage at the transformer secondary.

If a CCFL is removed, fails or damaged during normal operation, CCFL current is no longer sensed and the voltage on ISEN1/ISEN2 drops. Once the voltage at the ISEN1/ISEN2 pin is less than the lamp” on” threshold, the shutdown timer is activated. The IC maintains the output voltage for approximately

2-3seconds and once the timer reaches a threshold of approximately 3V, the IC will shutdown. To restart the

IC, either toggle the SST_CMP pin or recycle the power on the VDDA pin.

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Service Manual

2.2 Power PWM circuit operations

2.2.1) Block diagram:(fig.4)

EMI Filter Rectifier and filter

PWM controller

Isolation power transformer

Switching element

Feedback Isolation

Rectifier and filter

Rectifier and filter

Inverter circuit

To IF connector

Fig.4

2.2.2) AC Input and EMI Filter:(fig.5)

Fig.5

CN850 is a connector for connecting AC Power. F850 is a fuse to protect all the circuit AC. Input voltage is from 90V to 264V. R850 and R851 are joined between two inputting main circuit to prevent man from shock. L850 is used to filter low frequency noise. C850 and C851 are used to discharge the noise that L850 produced. High frequency waves are damped by C852 .

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Service Manual

2.2.3)High Voltage to Low Voltage Control Circuit:(fig.6)

4

-

D850

BL4-06

+

1

R853

+

C854

100u/450V

0.2R

C875

4700p/250V

R880

82K 2W

D853

TVS-P6KE170A

Signal_GND

D851

FR10-10-LF

R856

+

C855

10u/50V

10 1%

L854 bead

D852

SF10-04

T850

SPW-119

3

1

.

7

8

12

11

5

6

.

.

9

10

CN852

Gate

1

Isense

GND

2

3

FB

GND

4

5

VDD

NC

6

7

Signal_GND

8

Vin

CON8PIN

Q850

AP2764

2

R855

10K

C872

100P/1KV

R869

0R68 2W

1

3

C861

3300p/250V

T851

SPW-XXX

.

12

11

7

8

5

.

6 .

C860 OPEN

9

10

ZD881

OPEN

Signal_GND

I850

LTV817M

4

3

Signal_GND

1

2

R849

220R

C846

3

I sense HV

8

220pF/50V NPO

Signal_GND

5

U850

LD7575

OUT GND

4

D849

NC

2

COMP Vcc

6

Signal_GND

C847

Open

C849

1nF/50V NPO

Signal_GND

R846

100K/ 1%

C848

100nF/50VX

Signal_GND

R847

NC

R848 20R

R841

NC

Signal_GND

R842

20K

R843

20K

Signal_GND

CN852

1

Gate

2

Isense

3

GND

4

FB

5

GND

6

VDD

7

NC

8

HV

CON8PIN

Fig.6

8

Service Manual

D850 is a rectifier in which there are 4 build-in diodes, inverting AC to DC.

C854 is used to smooth the wave from rectifier. R852 is a fuse resistor to protect the following circuit when inrush current is too large.

U850 is a current-mode PWM controller with excellent power-saving opration,It features a high-voltage current source to directly supply the startup current from bulk capacitor and further to provide lossless startup circuit. Max start-up current for U850 is 100 uA, When current flow from the bulk capacitor C854 through R843 and R842 gets to HV pin to start up U850, Meanwhile,the VCC supply current is as low as 100 uA thus most of the HV current is utilized to change the VCC capacitor C855,

Whenever the Vcc voltage is higher than UVLO (16V),the GATE pin will output signal to drive the power

MOSFET(Q850), the high-voltage current source is off and the supply current is provided from the auxiliary winding of the trasformer PIN5.

When U850 begins to operate Pin8 of U850 will output square wave to drive Q850, then the main current flow get to GND bypassing through T850, Q850. Because of the change of current flow, wires in the other side of T850 will induct current. In the same time, the current inducted by wires which connected

T850 Pin 1 and Pin 3, with components of D852, R856 and C855 ,will be supplied to U850 for normal operating.

The typical current mode PWM controller feedbacks both current signal and voltage signal to close the control loop and achieve ragulation.U850 detects the Q850 current from Isense pin which max voltage is set as 0.85V, then the Q850 current can be calculated as:I peak=0.85V/R869,When the sense voltage across the sense resistor R869, reaches the threshold voltage over 0.85V, the output GATE drive will be turned off. R849 and C846 is used to avoid the Isen pin damaged by the negative turn-on spike.

The voltage feedback signal is provided from the TL431(I851) through the I850 to the COMP pin.When the voltage on COMP pin is lower than 1.2V,the IC will turn off.

When Q850 is turned off, the main current flow will be consumed through D851, C875, R880, this will prevent Q850 from being damaged under large current impulse and voltage spike.

RT pin is to program the switching frequency ,by connecting R846 to ground to set the switching frequency,f

=(65.0/R846)*100(KHz).

2.2.4) DC 12V and DC 5V Output Circuit and Feedback circuit:(fig.7)

L852

CHK-053 C862

1000p/1KV

R862

10R 2W

+12V

D854

D855

SF5-20

NC/SF5-20

+ C863

470u/25V

+ C864

470u/25V ZD880

GDZ14B/NC

R886

10K/NC

B

R887

10K/NC

C

E

R888

510R 2W/NC

Q851

2N4401/NC

C866

1000p/1KV

R866

10R 2W

L851

CHK-053

+5V

D856

D857

SR5-10

SR5-10

F851

5A/125V

+

C867

470u/25V

+

C868

470u/25V

C869

+

470u/25V

C876

0.1/50V

R867

270

PID

R871

270k

R861

3K65 1%

DIM/ON/OFF

R899 OPEN

+ C899

OPEN

6

7

8

1

2

3

4

5

CN851

+5V

GND

DIM

ENA

GND

+5V

PID

P-saving_on/off

SIP-8P

R858

5K1 1% C871

R859

I851

TL431

3

2

1

10K 1%

0.1/50V

C859

0.01/50V

R860

3K3 1%

C890

0.1uF/50V/NC

R890

9.1K/NC

Q890

R891

G

2N7000/NC 10K/NC

Fig.7

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Service Manual

D854 is used to rectify the inducted current. R862 and C861 are used to store energy when current is reversed. The parts including C862, C865 and L852 are used to smooth the current waves that are from

D855, then 13V voltage is supplied.

D856 and D857 are SCHTKY diodes used to rectify the inducted current.C866 and R866 are used to store energy when current is reversed,The components including C864,C874,C875,L851 and C876 are used to smooth the current waves,then DC+5V voltage is supplied. F851 is used for OCP for the LPS test.

DC 5V supply voltage feed back to PWM controller U850 via R861,R860,R859,C859,I851,R857,

R863 used to control the voltage feedback loop.

2.3 I/F Board Circuit

2.3.1 RGB CAPTURE

- Signal RED,GREEN,BLUE input through CN301 #1,#2,#3, Stop DC via C303, C302 and C301, and then enter into U401 (gm2621-LF) analog input terminal #99,#96,#93, and then gm2621-LF deals with signal internally. D303, D302, D301 are ESD protector to prevent U401 from ESD.

- Signal DDC_SCL (series clock) inputs via CN301#15, and then passes through ZD305 for ESD protection, goes into EDID EEPROM IC U301 #6.

- Signal DDC_SDA (series data) inputs via CN301#12, and then passes through ZD306 for ESD protection, goes into EDID EEPROM IC U301 #5.

- Signal TTL vertical sync. (Vsync) inputs via CN301 #14, and then clamped by ZD302 Zener, passes through R311, and then goes into IC U401 (gm2621-LF) #90.

- Signal TTL horizontal sync. (Hsync) inputs via CN301 #13, and then clamped by ZD303 Zener, passes through R310, and then goes into IC U401 (gm2621-LF) #89.

- CN301#5 is defined as cable detect pin, this detector realize via R319 and U401#114, and ZD301 is

ESD protector.

- U301 +3.3V is supplied by PC via CN301#9 or supplied by Monitor self via D307 with D306 and

ZD304 for ESD protection,.

- U301 is an EEPROM IC which is memory and EDID data saved in it.

2.3.2 Buttons Control

- Button “Power” on front bezel connects to U401 (gm2621-LF) #125 through CN401 #8, U401 #125 is defined as power on/off.

- Button “+” on front bezel connects to U401 (gm2621-LF) #124 through CN401 #3, U401 #124 is defined as “Plus”.

- Button “-” on front bezel connects to U401 (gm2621-LF) #123 through CN401 #2, U401 #123 is defined as “Minus”.

- Button “Menu” on front bezel connects to U401 (gm2621-LF) #122 through CN401 #1, U401 #122 is defined as “Menu”.

- LED Indicator on Front Bezel a. When press button “power”, U401(Scalar) #125 be send in low potential, make U401#57 sends out high potential, and then to J1#2 on keypad, LED Green on. b. When in “Suspend” mode, U401 (Scalar) #56 sends out a high potential, and then to J1 #3 on keypad, LED Amber ON.

2.3.3 ST CHIP U401 (gm2621-LF)

- U401 (gm2621-LF) #7~#10 output 8 bit even and #31~#40 output 8 bit odd LVDS digital data to panel control circuit through CN501.

- U401 (gm2621-LF) #127 output PPWR ”H” potential to make Q502 conducted, and then make Q501 conducted, +5V flow to CN501#1~#3 as Panel Vdd .

- U401 (gm2621-LF) #49 output CCFL_ON/OFF ”H” potential to control Inverter on/off.

- U401 (gm2621-LF) #50 outputs Brightness “PWM” signals to control CCFL brightness.

- TCLK by Crystal 14.318MHz input to U401 (gm2621-LF) #109.

- U401 (gm2621-LF) #111 Bidirectional RESET signals

Please refer to gm2621-LF Pin Assignments table in page

2.3.4 Regulator Circuit

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Service Manual

- +5V is from switching mode power supply for panel and Regulater U601

- +3.3V generates from Regulater U601 supply for U401, U301, U402 used.

- +1.8V generates from Regulater U602 through C603, C604 filtering which is output +1.8V for U401 used.

3. FACTORY PRESET TIMING TABLE

Standard

VESA

IBM DOS

Resolution

640 x 480

640 x 480

800 x 600

800 x 600

Horizontal Frequency

(KHz)

31.469

37.500

37.879

46.875

Vertical Frequency

(Hz)

59.940

75.000

60.317

75.000

1024 x 768

1024 x 768

48.363

60.023

60.004

75.029

1152x864 67.500 75.000

1280x1024 48.483 60.042

1280x1024 60.087 75.034

720 x 400 31.469 70.087

4. Power On/Off Sequency

Hardware Power ON

When power cord plug into AC socket, Power provides 12V,&DC_5V from through U850, DC_3.3V be generated from DC_3.3V Regulater U601.DC_5V is voltage for panel, DC_3.3v is main voltage for

U401. When DC_3.3V input to U401, U401 reset circuit active, set U401 all registers to default,. That means finish hardware power on.

Software Power ON/OFF

When press power key, U401 #125 recieves low pulse, and then (gm2621-LF) U401 will be wake up and send high plus(at 127,49pin) to on CCFL and switch 5.0v to panel module. And make the VGA cable input signal source display normal on panel.

- If Power ON, U402 #57 (LED_Green) will send out High potential, and then LED green on.

- If Power OFF, U402 #56 (LED_Amber) will send out High potential, and then LED Amber on.

The Panel_Vcc, Backlight_En, CLK/DATA output to panel will follow the following sequency.

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Service Manual

Power supply for V

DD

90% 90%

10%

Pin Symbol Pin Symbol Pin Symbol

0V 10%

T1 T2

T7

1 Red

2 Green

6 Red_GND 11 GND

7 Green_GND 12 DDC_SDA

3 Blue 8 Blue_GND 13 Hsync

4 GND

5 Cable

9 PC+5V

Signals

(Digital RGB, HS, VS, DE, CLOCK)

10 GND

14 Vsync

15 DDC_SCL

T5 T6

Valid data

0V

T3 T4

Power supply for back light

SPEC(LGD)

T1(ms) T2 (ms) T3 (ms) T4 (ms) T5 (ms)

0.5~10 0.001~50 >200 >200 0.001~50

T6 (ms) T7(ms)

>500

SPEC(HSD) 0.5~10 0~50 >200 >200 0.0~50 >500

5. D-SUB Connector Pin Assignment

6. AC Outlet Pin Assignment

1

CN850

3

Pin Symbol

1 Line

2 GND

3 Neutral

Description

12

Service Manual

7. Inner Connector Pin Assignment

7.1 CN501 (Connect M/B to Panel, C11330MGHR0 or compatible connector)

Pin Symbol

1 Panel_Vcc

2 Panel_Vcc

Description

Panel power supply (typ.5.0V)

Panel power supply (typ. 5.0V)

3 Panel_Vcc

4 NC

5 NC

Panel power supply (typ. 5.0V)

6 NC

7 GND_LVDS

8 RXE3+

9 RXE3-

10

11

RXEC+

RXEC-

12 RXE2+

13 RXE2-

14 GND_LVDS

LVDS signal of even channel 3(-)

LVDS signal of even channel 3(+)

LVDS signal of even channel clock (+)

LVDS signal of even channel clock (-)





15 RXE1+

16 RXE1-

17 GND_LVDS

18 RXE0+

19 RXE0-

20 RXO3+

21 RXO3-

22 RXOC+

23 RXOC-

24 GND_LVDS

25 RXO2+

LVDS signal of odd channel 0(+)

LVDS signal of odd channel 0(-)



LVDS signal of even channel clock (+)

LVDS signal of even channel clock (-)

26

27

28

29

30

RXO2-

RXO1+

RXO1-

RXO0+

RXO0-







7.2 CN1, CN2 (Connect to Panel Backlight, SM02B-BHSS-1-TB or compatible connector)

Pin Symbol

1 HV

2 LV

High voltage for lamp

Low voltage for lamp

Description

7.3 CN401 (Connect to keypad, SZ7103016B or compatible connector)

Pin Symbol

1 MENU OSD “MENU” control

Description

2 DOWN

3 UP

OSD “-” control

OSD “+” control and auto adjustment control

4 GND

5 GND

6 LED_Green

7 LED_Amber

8 Power

Ground

Ground

LED Green on/off control

LED amber on/off control

Power on/off control

13

Service Manual

8. Key Parts Pin Assignments

8.1 U401 (gm2621-LF) I/O Legend: P=Power, G=Ground, O=Output, I=Input, A=Analog

Pin Symbol I/O

1 AVSS_BIAS

2 VDD_OUT_33

Description

G Analog ground for LVDS PLL and Bandgap

P Digital 3.3V supply for LVDS output

3 RESERVED

4 RESERVED

5 RESERVED

O Reserved; Do not connect



6 RESERVED

7 E_CH3P_LV

8 E_CH3N_LV

9 E_CLKP_LV

10 E_CLKN_LV

11 E_CH2P_LV

12 E_CH2N_LV

13 E_CH1P_LV

14 E_CH1N_LV


O LVDS signal of even channel 3(+)

O LVDS signal of even channel 3(-)

O LVDS signal of even channel clock (+)

O LVDS signal of even channel clock (-)







P Core VDD connect to digital 1.8V

15 E_CH0P_LV

16 E_CH0N_LV

17 CVDD_18

18 CRVSS

19 RESERVED

20 RESERVED

21 RESERVED

22 RESERVED

23 RESERVED

24 RESERVED

25 Vdd_out_33

26 VSS_OUT

27 RESERVED

28 RESERVED

29 RESERVED

30 RESERVED

31 O_CH3P_LV

32 O_CH3N_LV

33 O_CLKP_LV








G Digital ground for LVDS output





O LVDS odd channel 3 positive. Reserved for gm5611 and gm2621

O LVDS odd channel 3 negative. Reserved for gm5611 and gm2621

O LVDS odd channel clock positive. Reserved for gm5611 and gm2621

34 O_CLKN_LV

35 O_CH2P_LV

36 O_CH2N_LV

37 O_CH1P_LV

38 O_CH1N_LV

39 O_CH0P_LV

40 O_CH0N_LV

41 RESERVED

42 RESERVED

43 RESERVED

O LVDS odd channel clock negative. Reserved for gm5611 and gm2621










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Service Manual

44 RESERVED O Reserved; Do not connect

45 RESERVED

46 RESERVED

47 VDD_OUT_33

48 VSS_OUT

49 PBIAS

50 PWM0/GPO_4




G Digital ground for LVDS output

O Panel backlight enable

I/O PWM0 output or optional general-purpose output GPO_4.

Also used for bootstrap control

51 GPIO_0

52 CRVSS

53 RVDD_33V

54 CRVSS

55 CVDD_18

56 GPIO_1

P Digital Output VDD. Connect to digital 3.3V


57 GPIO_2

58 GPIO_3

59 SPI_CSn

60 SPI_CLK

61 SPI_DI

I/O SPI ROM chip select. Also used for bootstrap control.

I/O SPI ROM Clock output.

I/O SPI ROM Data input. Connect this pin to the data output of

Serial FLASH

62 SPI_DO I/O SPI ROM Data input. Connect this pin to the data input of Serial

FLASH

63 RVDD_33V

64 DDC_SCL_VGA I DDC2Bi clock for Analog Port

65 DDC_SDA_VGA I/O DDC2Bi clock for Analog Port, internal pull up of 10K ohms

66 DDC_SCL_DVI/ I DDC2Bi clock for DVI Port or host I2C clock signal for

HOST_SCA debugging

67 DDC_SDL_DVI/

HOST_SDA

68 AVSS_DVI

I/O DDC2Bi clock for DVI Port or host I2C data signal for debugging, internal pull up of 10k ohms

G Analog GND for DVI input. Reserved for gm2621 and gm2621;

Do not connect

69 REXT

70 AVDD_DVI_18

71 AVSS_DVI

72 RX2+

73 RX2-

74 AVDD_DVI_33

75 RX1+

76 RX1-

77 AVSS_DVI

78 AVDD_DVI_18

79 AVSS_DVI

80 RX0+ reference

A 1%, 250Ω resistor should be connected from this pin to pin 74.

Reserved for gm2621 and gm2621; Do not connect.

P Analog VDD (1.8V) for DVI input.

Must be bypassed with external capacitor(s) to AVSS_DVI.



Do not connect.

I Do not connect.

I Do not connect.

P Analog VDD (3.3V) for DVI input. Reserved for gm2621 and gm2621; Do not connect.

I Do not connect.

I Do not connect.


Do not connect.





Do not connect.

I Do not connect.

15

Service Manual

81 RX0- I Do not connect.

82 AVDD_DVI_33

83 RXC+

84 RXC-

85 AVSS_DVI

86 AVDD_DVI_18

P Analog VDD (3.3V) for DVI input. Reserved for gm2621 and gm2621; Do not connect.

I Do not connect.

I Do not connect.


Do not connect.




87 CVDD_18

88 CRVSS

89 HSYNC

90 VSYNC


I ADC input horizontal sync or composite sync input.

I ADC input vertical sync

91 RVDD_33V P Digital Output VDD. Connect to digital 3.3V

92 AVDD_ADC_33 I 1.8V for gmZAN3SL core

93 BLUE+

94 BLUE-

95 AVSS_ADC

I Positive analog input for Blue channel

I Negative analog input for Blue channel

G Analog ground for ADC

96 GREEN+

97 GREEN-

98 AVSS_ADC

99 RED+

I Positive analog input for Green channel

I Negative analog input for Green channel


I Positive analog input for Red channel

100 RED- I Negative analog input for Red channel

101 AVDD_ADC_33 P Analog power (3.3V) for ADC. Must be bypassed with capacitor

102 AVSS_ADC to AVSS_ADC pin.


103 AVSS_ADC G Analog ground for ADC

104 AVDD_ADC_18 P Analog power (1.8V) for ADC. Must be bypassed with capacitor

105 VBUFC_RPLL to AVSS_ADC pin.


106 VDD_RPLL_18

107 VSS_RPLL

108 XTAL

P Digital 1.8V Power for PLL

G Ground for PLL

O Connect to 14.3MHz crystal. Should be bypassed with capacitor to AVDD_RPLL_33.

109 TCLK I Connect to 14.3MHz crystal. Should be bypassed with capacitor to AVDD_RPLL_33.

110 AVDD_RPLL_33 P Analog power (3.3V) for PLL

111 RESETn I/O Bypass with 0.01uF capacitor GND

112 LBADC_VSS

113 LBADC_IN3

114 LBADC_IN2

115 LBADC_IN1

I Ground-purpose LBADC input 3.



116 LBADC_VDD_33 P 3.3V supply for general-purpose LBADC.

117 CRVSS

118 CVDD_18

119 PWM0/GPO_5

120 GPIO_8


I/O PWM0 output or optional general-purpose output GPO_5.

Also used for bootstrap control

I/O General-purpose input/output 8

121 GPIO_9

122 GPIO_10

123 GPIO_11

124 GPIO_12





16

Service Manual

125 GPIO_13 I/O General-purpose input/output 13

126 GPIO_14

127 PPWR


O Panel power enable

128 AVDD_BIAS_33 P Analog 3.3V supply for LVDS PLL and Bandgap

8.2 U402 (Serial Flash)

Pin Symbol I/O

1 CE# I

Description

The device is enabled by a high to low transition on CE#. CE# must remain low for the duration of any command sequence.

2 SO

3 WP#

I/O To transfer commands, addresses, or data serially into the device.

I/O The write protect (WP#) pin is used to enable/disable BPL bit in the status register.

4 VSS

5 SI

6 SCK

I/O To transfer commands, addresses, or data serially into the device input are latched on the rising edge of the serial clock.

I/O To provide the timing of serial interface.

Commands, addresses, or input data are latched on the rising edge of the clock input, while output data is shifted out on the

Falling edge of the clock input.

7 HOLD

8 VDD

I/O To temporarily stop serial communication with SPI flash memory without resetting the device.

P To provide power supply.

8.3 U850 (LD7575, Power Controller)

Pin Symbol I/O

1 RT

Description

This pin is to program the switching frequency

2 COMP

I Voltage feedback pin,By connecting a photo-coupler to close the control loop and achieve the regulation

3 CS

4 GND

5 OUT

I

O

Current sence pin

PWM output ,Gate drive output to drive the external

MOSFET

6 VCC

7 NC

8 HV

I Power

Unconnected

I PWM

8.4 U1 ( INL816GN, CCFL Inverter controller IC)

Pin Symbol I/O

1 DRV1

2 VDDA

O

---

Driver output 1

Description

Supply voltage input

3 SEL

4 RT1

5 RT

6 ENAPWM

7 PID

8 TIMER

9 ISEN1

10 ISEN2

11 VSEN

12 OLP1

13 OLP2

14 SSTCMP

15 GNDA

16 DRV2

I

I/O

I/O

I

I

I/O

I

I

I

I

I

Select Signal for Push-Pull or Half-Bridge Topology

Timing Resistor for Striking Frequency

Timing Resistor for Operation Frequency

Enable and PWM Dimming input

Analog Dimming input

Timing Capacitor for Delay Timer

Currentfeedback1

Currentfeedback2

Voltage

I/O Soft-Start and Compensation

--- Ground

O Driver output 2

17

Service Manual

Chapter 4- Disassembly & Assembly

1. Exploded Diagram

18

Service Manual

2. E198FPf Disassembly Block

DELL E190Sf DISASSEMBLY BLOCK

bezel assy 1PC stand assy 1pc

Rubber

10x20x3.8mm

2pcs back-cover 1pc kensing-ton 1pc back-cover assy 1pc screw,P,cross,

M4*10,blk-NYLOK,

4pcs chassis assy 1pc chassis 1pc slide 1pc spring 2pc fix-plate1 1pc fix-plate2 1pc screw,F(90 度 ),cross,

M3*4,Zn-Cc 2pcs

SHIELD EMI

LP2207,6pcs

PCBA,P/I board,LE1966-7B0 1pc screw,p,cross,

W/WAS,M3*8,Zn-Cc 2PCS screw,B,cross,

W/W(T),M4*6,Zn-Cc 1PC

PCBA,I/F board,LE1966-8B0 1pc screw,p,cross,

W/WAS,M3*8,Zn-Cc 2PCS

BOLT,#4-40*12.5,Ni 2pcs screw,I,M3*6,Zn-Cc 2PCS front-bezel

1PC key button 1PC

LOGO 1PC keypad PCB 1PC

SCREW,I,CROSS,T.T-2*2.5,

Zn,ROHS, 2PCS release button assy

1pc vesa-release-button

1pc release-metal-button

1pc panel 1pc screw,I,M3*4,Zn-Cc 4pcs(HSD PANEL) screw,I,M3*5,Zn-Cc 4pcs(LGD PANEL) top-mylar 1pc

LVDS cable 1pc

TAPE ACE 85X45mm bottom-mylar 1pc

SCREW,BPT3.0x4,C3UC

ROHS, 2PCS

19

Service Manual

3. Assembly Block

DELL E190Sf ASSEMBLY BLOCK

top-mylar 1pc panel 1pc screw,I,M3*4,Zn-Cc 4pcs (HSD PANEL) screw,I,M3*5,Zn-Cc 4pcs (LGD PANEL) bottom-mylar 1pc

SCREW,BPT3.0x4 C3UC

ROHS, 2PCS

LVDS cable 1pc

PCBA,P/I board,LE1966-7B0 1pc screw,p,cross,

W/WAS,M3*8,Zn-Cc 2PCS screw,B,cross,

W/W(T),M4*6,Zn-Cc 1PC

PCBA,I/F board,LE1966-8B0 1pc screw,p,cross,

W/WAS,M3*8,Zn-Cc 2PCS

BOLT,#4-40*12.5,Ni 2pcs screw,I,M3*6,Zn-Cc 2PCS chassis assy 1pc chassis 1pc slide 1pc spring 2pc fix-plate1 1pc fix-plate2 1pc screw,F(90 度 ),cross,

M3*4,Zn-Cc 2pcs

SHELD EMI,

LP2207,6pcs screw,P,cross,

M4*10,blk-NYLOK,

4pcs release button assy

1pc vesa-release-button

1pc release-metal-button

1pc

LOGO 1PC front-bezel

1PC key button 1PC keypad PCB 1PC

SCREW,I,CROSS,T.T-2*2.5

,Zn,ROHS,2PCS

INSULATOR,MYLAR

,KEY-PAD PCB 1PCS back-cover assy1pc bezel assy 1PC

Rubber

10x20x3.8mm 2pcs back-cover 1pc kensing-ton 1pc stand assy 1pc

20

Service Manual

Chapter 5- TEST AND ADJUSTMENT

1. Function key Definitions

Power Switch

Power LED

Front Panel Controls

Hot Key Function

Power: On/Off, includes power indicator and Power ICON

Green- Active On

Amber- DPMS

Adjust Up:(+)symbol molded into button, move up the highlight bar

Adjust Down: (-) symbol molded into button, calls out brightness/Contrast, move down the highlight bar.

Menu: Call out OSD Menu and select the item

Automatic adjust: Directly press “+”

Brightness/Contrast Icon: Directly press “

− “

2. OSD Control

First Second

Brightness/Contrast (Press “-” directly)

Third Fourth

Exit

Contrast

Positioning

Brightness

Exit

Horizontal

Vertical

Image setting

Color Setting

Exit

Auto Adjust

Pixel Clock

Phase

Normal Preset

Blue Preset

Red Preset

User Preset Exit, R, G, B

Exit

OSD Settings

Language

Factory Reset

Horizontal Pos.

Vertical Pos.

OSD Hold Time

OSD Lock Yes, No

Exit

English

Espanol

François

Deutsch

Portuguese

Russia

Simplified Chinese

Japanese

Exit

Position Settings Only

21

Service Manual

Color Settings Only

All Settings

Enable LCD Conditioning

Automatic Adjustment (press “+“ directly)

DDC/CI Enable Disable

3. Factory Mode Introduction

Fig.1 Fig.2

With signal input, press “Power” button to turn off the monitor. Press “Menu” and “Auto/Plus” buttons together, and then press “Power” button to turn on the monitor. After power on, press “Menu” button to call out Main Menu

(Fig.1). Pull down to Factory Reset and choose Factory to enter Factory mode (Fig.2).

Panel: JT094: Current using panel part number(DELL supply)

Exit: Exit from Factory mode and back to Reset to Factory Settings.

Auto Color: Automatically calibrate chip ADC parameters by using internal DAC. (Only with Burn-in ON)

Burn In: Enable or disable the Burn-in mode by choosing ON or OFF.

Reset Timer: Reset the “Turn-on time” of the panel to 0H0M.

Color Temp: The R, G, B of Blue Preset (9300K), Red Preset (5700K) and Normal Preset (6500K) are generated from scaling chip’s back-end white-balance program.

Time: Turn-on time of the panel.

4. Burn-in pattern

If it is a new monitor without VGA cable plugged in, burn-in pattern will self-generate automatically.

Burn-in pattern will not be stopped until plugging in the VGA cable. Then, press “Menu” button to call out

OSD Main Menu; pulling down to Factory Reset item and execute All Resetting to disable Bun-in ON.

5. Auto Color Balance (Automatically calibrate chip ADC parameter by using chip internal DAC.)

5.1 If it is a new-built set, press “Auto/Plus” button to execute “Auto Color” at 32gray scale pattern.

5.2 Please confirm the following steps to perform “Auto Color Balance”:

- Connect the VGA cable with the standard video pattern generator and display 32gray scale pattern on the monitor.

- Press “Power” button to power off the monitor.

- Press “Menu” and “Auto/Plus” buttons simultaneously; then press “Power” button to power on the monitor.

- Press “Menu” button, pull down to Factory Reset and choose “Factory” item.

- Set Burn In to ON, then execute Auto Color.

- With “Auto Color” finished, return to Reset to Factory Settings OSD and execute All Settings to enable burn-in OFF.

22

Service Manual

6. EDID (Rewrite EDID data to EEPROM by Fox_VEDID_Programmer)

The Write-Protect Pin of EEPROM is generally pulled up to enable EDID to be read only; EDID cannot be written at that status. The following steps enable EDID to be written:

6.1 Connect the monitor and PC via a VGA cable.

6.2 Execute Fox_VEDID_Programmer.

- Click “browse” icon to choose a binary file from the PC.

- Type the “Serial Number” in the dedicated field. Each monitor will have its own serial number. Then click Enter on the keyboard to jump to next field.

- Type 1 to 2 characters or digits in “Travel Card SN” field. Then click Enter to start writing EDID to monitor.

- “PASS” will be shown with EDID finished programmed. Please plug out the AC power cord of the monitor to restart.

7. Upgrade Firmware to Serial via Flash Cable by Fox_VISP_Programmer

7.1 Connect the monitor and PC via a VGA cable.

7.2 Fox_VISP_Programmer enables users to upgrade the firmware of the monitor directly through the VGA cable of a PC. Please follow the steps for reprogramming the firmware:

- Click “Select Bin” icon to choose a binary file from the PC. The path of the selected binary file will be shown in the “Message” text window. Meanwhile, the checksum of the binary file will be calculated and displayed.

- Click “Connect” to check if the connection is satisfactory between the monitor and PC.

- If the connection is ready, click “Auto Programming F2 key” to begin flashing the firmware. During the flashing process, the motherboard of the PC will send out tick sound. If the firmware is reprogrammed successfully, “Command: Fast flash write successful” will be shown in the “Message” text window. The

“successful update” condition will make the motherboard bring “Do-Re-Mi” sound five times with the interval of 500ms.

7.3 With the process of reprogramming firmware finished, plug out the power cable to restart the monitor.

※ The detailed reprogramming procedures will be described in Fox_VISP_Programmer User Manual.

23

Service Manual

8. After repair, to ensure the quality you should do the following test and adjustment.

24

Service Manual

Item

Test OSD function

Contrast

Check

Color

Temperature

Modes switching check

Content

1.Signal is set as 1280×1024@60Hz under General-1

2. LCM button are from left to right, checking whether each single function key and compound function key can be worked.

1. Set input mode to 1280×1024@60Hz

2. Set to 32gray scale pattern

3. Set contrast to the maximum. At most 6 bars cannot be distinguished.

1. Do “Auto color Balance” at 1280×1024@60Hz, 32gray scale pattern

2. Measure color temperature, check if it complies with the following temperature :

5700K x=0.328 +/- 0.03, y=0.344+/-0.03

6500K x= 0.313 +/- 0.03, y=0.329+/-0.03

9300K x= 0.283 +/- 0.03, y=0.298+/-0.03

1. Use Chroma Pattern Generator to make sequence.

VESA (640x480 800x600 1024x768 1152x864 1280x1024), the detail supported modes (see table 1) and power saving signal.

2. Confirm the above timing modes must be full screen and the picture must be normal.

3. LED is amber at power saving mode.

Equipment

Chroma

Signal

Generator

Chroma

Signal

Generator

Chroma

Signal

Generator and color analyzer

Chroma

Signal

Generator detector

Minimum luminance measurement

1. LCD minimum luminance spec is 200cd/m2 (0-15 months from mfg. date)

2. 0-15 months: > 80% of minimum luminance

OSD Lock

Test

Panel Flicker check

Power saving

Visual check

Chroma

Signal

Generator and Color

Analyzer

Soft Lock: When OSD is locked, this icon should appear for only 2 seconds with all buttons pressed, except for the “Menu” and “Power” ones.

Hard Lock: Press “Menu” button for 15 seconds enables the “locked” icon to be displayed, which will lock All buttons expect for the “Power”. Press “Menu” button for another 15 seconds enables the “unlock” icon to be shown.

Visual

Inspection

1. Mode:1280×1024@60Hz

2. Set Brightness& Contrast to default value (75%)

3. Do “Auto Adjustment”

4. Shut down PC to check whether there’s flicker on the center of the picture.

1. Mode:1280×1024@60Hz

2. Pattern: full white

3. Brightness: Max.

4. Contrast: Default

5. Check power consumption at each modes

State Power Consumption LED color

Normal ＜2 5Ｗ green

Stand By

Power Key Off

＜1Ｗ

＜0 .5Ｗ amber no

Chapter 6- TROUBLE SHOOTING

Equipment::

Chroma

Signal

Generator &

PC

Chroma signal generator and Power meter

AC input:230V/

50Hz

1. Common Acknowledge z If you change the M/B, be sure that the U301 and U402 these two components also changed to the

25

Service Manual new M/B because there was program inside. If not, please re-write EDID or upload firmware into serial flash(U402) via VGA Cable. How to do please refer to the Page 19. z If you adjust clock and phase, please do it at condition of Windows shut down pattern. z Please confirm the R/G/B color under 32gray scale pattern. z This LCM is analog interface. So if the entire screen is an abnormal color that means the problem happen in the analog circuit part, if only some scale appears abnormal color that stand the problem happen in the digital circuit part. z If you check the H/V position, please use the crosshatch pattern. z This LCM support 10 timing modes, if the input timing mode is out of specification, “Cannot Display this Video Mode” will be displayed on the screen. z If brightness uneven, repairs Inverter circuit or change a new panel. z If you find the vertical line or horizontal line lost on the screen, please change panel. z If the self-test pattern is moving on the screen, please check whether VGA Cable is plugged in the

Monitor or PC. If the VGA Cable is plugged in well, please change another VGA cable.

2. No power supply

Is there DC12 at L852;

Is there DC 5V at L851;

YES

Is the voltage at C854 in the range of 127V~372V?

YES

NO

NO

Is the voltage at pin8 of U850 354V?

NO

YES

Is the voltage at pin6 of U850 18.0?

YES

Is the voltage at pin3 of T850 510?

YES

Check Q850 ,U850

NO

Check D854;

Check D856/D857;

Check D850, F850

Check R853

Check D852 ,R856

26

Service Manual

3. Power LED Amber

Is Power LED Amber?

YES

Do the Hsync. & Vsync. Signals exist in CN301 #13& #14 separately?

NO

Insert VGA Cable correctly

YES

Do the Hsync. & Vsync. Signals exist in R310 & R311?

NO

YES

Do the Hsync. & Vsync. Signals exist in U401 #89 & #90?

NO

YES

Is the frequency 14.318MHz at #109 of U401?

NO

YES

Check R310 & R311

Change R310 & R311

Change X401

Change U401

END

27

Service Manual

4. Power (include IF +5Vand +3.3V) supply normal

( key function OK, but backlight can’t be turned on)

Backlight cannot be turned on,is the

NO

Is the CN851 on-off control signal come from IF ok? inserted CN101 OK?

Yes

Is the voltage

13Vat T1

PIN3/4

Yes

NO Check

T1

Yes

Is the on-off control signal #109 of U105 high-low convertible when DC on/off

NO

Change U105

Yes

Check U1 pin2 Voltage is 5V

Yes

Check U1 pin6

Voltage is High

NO Check

CN851

YES

Check U1 pin1 and pin16 Output

Yes

Change Q1

NO

Check

U1

28

Service Manual

5. No picture & Backlight on

No picture & Backlight on

YES

Touch OSD Menu Button,

Does OSD display?

YES

Is there R.G.B signal in

U401 #99, #96 #93?

NO Change D301,

D302 & D303

YES

Is there clock signal in

U401 #109?

NO

Change X401

YES

Check DC 5.0V on

CN501#1, #2, #3

YES

Are there data output on

U401#7~#16, #31~#40

NO

Change U401

NO

Check Q501 circuit

END

29

Service Manual

6. At 32-gray scale pattern, color lost in some scale

Color lost in some scale at 32-gray scale pattern

Re-insert the FFC Cable

NO

Change FFC Cable

NO

Change M/B

7. Diagnostic Test Pattern

1. Press “menu”and “+”simultaneously and hold for 2 sec to enter to the diagnostic.

Check for line defects from the gray color test screen.

2. Press “+”to advance to the next test pattern - Red color screen. Check for partial block dot(s) - Red color dead pixel. Continue this for the Green & Blue color.

3. When in White color test screen, check for white color uniformity and if there white color appears greenish/reddish, etc.

OK,

END

OK,

END

30

Service Manual

31

Service Manual

32

Service Manual

Chapter 7- RECOMMENDED PART LIST

Critical Parts List

E190S Critical Components List

Content

IF BD

PN Description Supplier Usage

Supplier

Location

412040098880R IC GM2621-LF-BC,QFP-128(GENESI S)RoHS

430631050060R WFR. 5P 2.0MM 180° W/L ROHS

412000494310R IC PM25LV020-100SCE SOIC8(PMC)RoHS

412000721560R IC W25X20AVNIG SOIC8(WINBOND) RoHS

412000661620R IC MX25L2025MC-12G (MXIC)RoH

ST,

FOXCONN,

JOWLE,

PMC,

WINBOND

MXIC,

Scaler

To Power

Board

Connector

Serial

Flash

U401,

CN601,

U402,

412000494190R IC SST25LF020A-33-4C-SAE SOIC8(SST)ROHS SST,

412000332130R IC AP1117D33LA 3.3V (ANACHIP) TO-252-3L, ANACHIP,

412000332020R IC LD1117AL-3.3-A TO-252(UTC)RoHS

412000332830R IC AS1117R-3.3.TR-LF,TO-252(A1 SEMI)RoHS

UTC,

A1SEMI,

412000333990R IC CAT24FC02W-TE13 SOIC-8 RoHS (CATALYST CATALYST,

412000769830R IC AS24C02ID-18/TR-LF SOP8(A1SEMI) A1SEMI,

DC to DC convert

U601,

412000480280R IC M24C02-RMN6TP SO8(ST)RoHS

412000435480R IC AT24C02BN-10SU-1.8 SOIC8 2K (ATMEL)Ro

412000480990R IC CAT24C02WI-TE13 SOIC-8(CATALYST)RoHS CATALYST,

412000330130R IC AP1117E18LA 1.8V (ANACHIP) SOT223-3L ANACHIP,

412000330830R IC AS1117L-1.8/TR-LF,SOT223(A1 SEMI)RoHS

412000330020R IC LD1117AL-1.8V-A SOT223(UTC) RoHS

ST,

ATMEL,

A1SEMI,

UTC,

EEPROM U301,

DC to DC convert

U602,

492421300100H PCB, I/F ,2/OSP /FR4/16, LE19S1 HF

EXPRESS,

PCB

EXPRESS,

492421500000H PCB, K/P ,2/OSP /FR4/08, LE19S1 HF10

PI BD

412000453820R IC LD7575PS SOP8(LEADTREND) RoHS

412000783630R IC INL816GN SOP16(O2 MICRO)

426000091190R XFMR SW DIP ER28 TP4 920uH SPW-119 ROHS

LEADTREN

D,

O2

FOXCONN,

PWM

Control IC for Power U850

PWM

Control IC for Inverter U1

FRONTIER

LISHIN

MEIKAI,

Transfer

AC to

5V/13V

T850

426000090540R XFMR SW 955mH,SPW-054,RoHS

420431014083R CAP SEK 100uF/450V M,105

℃ CF,18x40(2.5)

33

DARFON

FOXCONN

FRONTIER

LISHIN,

ELITE

SAMXON

SU'SCON,

High-vol. transformer T1 for CCFLs

Filter AC line voltage to DC

C854

Service Manual

410050114290R XSTR AP2764AI-A N-CH 650V/9A TO-220CFM APEC,

410050103050R XSTR FMA09N65GX N-CH TO-220F(FUJI) RoHS FUJI,

Switch

MOS

Q850

410050057280R XSTR STP8NK80ZFP N-CH TO220FP (ST) ST,

492421400100H PCB,PCB,P/I ,1/OSP /CEM1/16,LE19S1,HF

492422200000H PCB,CRL-I ,2/OSP /FR4/12(INL816)LE19S1,H

HUIHO,

TATCHUN, PCB

EXPRESS,

SHENG HUA PCB

ATTACHMENT 1- Bill of Material

MNT BOM

E190Sf MNT BOM

Lv Item Component Object description

1 10 453070800150R PWR CORD 10A/125V BLK 6FT UL/CSA SVT 3Cx

1 20 453010100320R CABLE D-SUB 15P MALE 6FT BLACK/BLUE AB 8

Quantity BUn RevLev

1 PC C

1 PC B

1 PC A

1 PC A

2 40 714050024200R ASS'Y BACK COVER LE19S1

2 70 714030027001R ASS'Y FRONT BEZEL ,LE19S1

4 PC A

1 PC A

1 PC A

1 PC A

1 PC A

1 PC B

2 50 506280011401R POSTER,QUICK SETUP,WEST, LE19S1

2 70 506120300060R BAG, PLASTIC,L670*W440mm(PRINTED), LE22E

2 80 506120004400R BAG PLASTIC L540xW460xT0.05mm(PRINTED)LE

2 110 506060017601R CUSHION BUTTOM ,LE19S1

2 120 506340004700R LABEL BLANK 101X50mm DELL EMEA CARTON

2 130 506380002622R TAPE, WRAPPING TYPE PRINTED(DELL), BLACK

2 140 713000100506R ASSY PACK,AIR CARGO (20STD),LE19S1

34

0.00333 PC A

1 PC A

1 PC A

1 PC A

1 PC B

1 PC A

1 PC A

1 PC A

1 PC A

0.00134 ROL A

PC A

1 PC A

PC A

Service Manual

2 140 713000100507R ASSY PACK,AIR CARGO (40STD),LE19S1 PC A

2 714050024200R ASS'Y BACK COVER LE19S1

3 10 501020233000R BACK COVER LE19S1 1 PC A

1 PC A

2 714000001410R ASSY,RELEASE BUTTON(B), LE1X28

1 PC A

1 PC A

2 714030027001R ASS'Y FRONT BEZEL ,LE19S1

3 10 501010226500R FRONT BEZEL LE19S1

3 30 506102000600R LOGO PLATE DELL LE1X13

1 PC A

1 PC A

1 PC A

3 10 631102092520RD LCP 19" LM190E08-TLJ3(A)(LGD)ROHS 1 PC

3 10 631102092530RD LCP 19" LM190E08-TLJ4(A)(LGD)ROHS PC

1 PC AA

1 PC AA

3 50 430303002450R HRN LVDS FFC 30P 207mm,W/CORE&LOCK

1 PC AA

1 PC A

2 PC A

2 PC A

4 PC A

4 PC A

1 PC A

1 PC A

3

3 70 506431000300R FILM,PE 500mmx900M ROHS

3 90 506120400100R BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS

3 20 506432001500R SLIP SHEET,L1130xW886xH100mm, LE1711 ROH

3

20 506432001500R

70 506431000300R

SLIP SHEET,L1130xW886xH100mm, LE1711 ROH

FILM,PE 500mmx900M ROHS

35

2 PC A

PC B

PC A

PC A

PC A

PC A

PC A

PC A

ROL A

PC A

0.01538 PC B

0.01538 PC A

0.03077 PC A

0.03077 PC A

0.06154 PC A

0.00248 PC A

0.00039 ROL A

Service Manual

PC B

3 20 506432001500R SLIP SHEET,L1130xW886xH100mm, LE1711 ROH


PC A

PC A

PC A

PC A

PC A

PC A

ROL A

3 10 506150015000R PALLET L1233*W980*H120mm, LE19S1



3 80 506120400100R BAG AIR DUNNAGE 2000x1000mmLE1X03 ROHS




PC A

PC A

PC A

PC A

PC A

PC A

PC A

PC A

ROL A

PC A

PC A

PC A

PC A

PC A

PC A

PC A

ROL A

1 PC A

4 20 502020300800R BRACKET VESA LEFT LE1X13

4 60 502040000300R SHIELD SLIDE LE1X13

4 70 502040400600R SHIELD EMI LP2207

PCBA PI BOM

1 PC A

1 PC A

2 PC A

1 PC B

6 PC A

E190Sf PCBA PI

BOM

ITEM P/N Description Supplier Usage Location

10 792811420700R

PCBA,P/I BOARD,W/O SPK,MI,LE19S1-710

RO

1

20 792811410700R

PCBA,P/I BOARD,W/O SPK,AI,LE19S1-710

RO

30 792792100000R

PCBA,CONTROL/B(PWR

LD7575),LP2261RoHS

40 792812200700R PCBA,CONTROL/B(INV INL816),LE19S1,

1

1

1

36

Service Manual

RoHS

50 735110012400R ASSY,H/S,Q850,LE19S1,ROHS

70 511110000501R SILICONE RTV RUBBER,UB-511(EURO) EURO,

80 511110000103R HOT-MELT ADHESIVES,UB-618 U-BOND,

80 511110000101R HOT-MELT ADHESIVES (#526) EXCELSTAR,

1

0.45

1.5

0


10 410050114290R

XSTR AP2764AI-A N-CH 650V/9A

TO-220CFM

10 410050057280R XSTR STP8NK80ZFP N-CH TO220FP (ST) ST,

10 410050103050R

XSTR FMA09N65GX N-CH TO-220F(FUJI)

RoHS

0

FUJI, 0

20 509146308102R SCREW,PW,CROSS W/WAS,M3*8,Zn GAOYI,YIJIE, 1

30 507200004200R HEATSINK,35x16.7xt10mm, LE1911

DMC,ORIENTAL

POWER,ZHONGJIAN,

1


10 430632080020R

WFR. 8P 2.54mm 90°,HEADER,W/O

PIN2,RoHS

20 792792140000R

PCBA,CONTROL/B(PWR

LD7575),SMD,LP2261,RO

30 511130001200R

SOLDER

BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0

ITEM P/N Description

1

TOMAS, 0.5

Supplier Usage Location

10 792811450700R

PCBA,P/I BOARD,W/O

SPK,AI/A,LE19S1-710

20 792811460700R

PCBA,P/I BOARD,W/O

SPK,AI/R,LE19S1-710


1

1


10 430637020030R WFR. 2P P=3.5mm 90°W/LOCK,RoHS CVILUX,FCN,FOXCONN,

20 440149000350R SKT AC 10A/250V U/C/V, H 1.0MM ROHS TECX,

JNC,SUCCESS(SEC), 30 418110051520R CAP CD NPO 10pF 3KV J,S7.5, RoHS

30 418110058510R

CAP CD SL 10pF 3KV J,F7.5 RoHS

CC45SL3FD

40 418103051920R CAP CD NPO 3pF 3KV D,S7.5, RoHS

40 418103058920R CAP CD SL 3pF 3KV D,S7.5,RoHS

50 416202223620R

CAP MEY 2200pF 250V M Y2 Y5V,W /O

FORMIN

JNC,SUCCESS(SEC), 0

JNC,SUCCESS(SEC),

JNC,SUCCESS(SEC),

1 CN850,

1 C22,

2 C20,C21,

0

60 416194743011R CAP MEX 0.47uF 275V K X2,F15 RoHS

ARCOTRONIC,EUROPTRONI

C,HJC,SCC,

1 C852,

70 420431014083R

CAP SEK 100uF/450V M,105℃

CF,18x40(2.5)

80 416213323620R

CAP MEY 3300pF 250V M Y1,F10mm W/O

FORMI

90 416304723510R CAP PP 0.0047uF 250V J,F7.5 RoHS

100 415502688551R RES NKNP 2W 0.68Ω J, MINI,HK15,ROHS

ELITE,LELON,SAMXON,SU'S

CON,

EUROPTRONIC,HJC,SCC,

FUTABA,QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

1 C854,

1 C875,

1 R869,

110 415350100550R RES MOF 2W 10Ω J,MINI,HK15, RoHS

120 415350823550R RES MOF 2W 82KΩ J,MINI,HK15 RoHS


YUAN,UNIOHM,欣統,


YUAN,UNIOHM,欣統,

THINKING,UPPERMOST,

2 R866,R862,

1 R880,

1 RT850, 130 432009400701R NTC 5Ω 4A 10ψ P=5mm, F RoHS

140 412140002380R

IC LTV817M-PR VDE (LITE-ON) P=10mm

RoHS

140 412000756150R IC PS2561AL1-1-V-A D10(NEC) NEC, 0

150 425000010530R

COIL CHK 5uH 7.8X10 CHK-053 0

181085R0L

CHILISIN,DARFON,EASYMA

GNET,FOXCONN,FRONTIER

,TAICHANG,

2 L851,L852,

37

Service Manual

160 426000050070R

CHOKE L-FILTER 12mH LIN-007

ET-20,RoHS

DARFON,FOXCONN,LISHIN,

MEIKAI,TAICHANG,

1 L850,

170 411050012010R DIO BRDG GBU405 600V/4A(TSC)RoHS

170 411050012020R

DIO BRDG GBU4-06-BF52

180 411090056022R

600V/4A(FEC)RoHS

SCHTKYSR520F75-LF 200V/5A

180 411090056452R

DO-201AD(FEC)

SCHTKYSR5200PT-A3 200V/5A

DO-201AD(CHENM

180 411090056092R

SCHTKY MBR5200-F46 200V/5A

DO-201AD(PANJ

190 411090050022R

SCHTKY SR515F75-LF 150V/5A

DO-201AD(FEC)

190 411090050012R

SCHTKY SR5150PT-A3 150V/5A

DO-201AD (CH

190 411090050092R

SCHTKY SB5150F46 150V/5A DO-201AD

(PANJI

TSC, 1 D850,

FRONTIER, 0

CHENMKO, 0

PANJIT, 0

CHENMKO, 0

PANJIT, 0

200 426000090540R XFMR SW 955mH,SPW-054,RoHS

DARFON,FOXCONN,FRONTI

ER,LISHIN,TDK,

210 426000091190R

XFMR SW DIP ER28 TP4 920uH SPW-119

ROHS

FOXCONN,FRONTIER,LISHI

N,MEIKAI,

220 430300500540R HRN ASSY 5pin 100mm UL1007 #26 LOCK FOXCONN,JVE,銳升,

ITEM P/N Description Supplier

1 T1,

1 T850,

1 CN851,

Usage Location

10 430632150010R WFR. 15P 2.54mm 90°,HEADER,RoHS

20 792812240700R

PCBA,CONTROL(INV

INL816),SMD,LE19S1,ROHs

30 511130001200R

SOLDER

BAR,Sn96.5/Ag3.0/Cu0.5/Ni0.06/Ge0


CVILUX,FOXCONN, 1 CN5,

1

TOMAS, 0.5


10 419312210060R C SMD(0603) X7R 220PF/50V K RoHS

20 419311040060R C SMD(0603) X7R 0.1uF/50V K RoHS


50 414904020350R RES SMD (1206) 20KΩ J,RT RoHS

60 414916010410R RES SMD (0603) 100K F,RT RoHS

70 414916200910R RES SMD (0603) 20Ω F,RT,RoHS

80 414916022150R RES SMD (0603) 220Ω J,RT RoHS REV:A

DARFON,TDK,WALSIN,YAGE

O,


O,


O,

TA-I,UNIOHM,WALSIN,YAGE

O,


O,


O,


O,

90 412000453820R IC LD7575PS SOP8(LEADTREND) RoHS LEADTREND,


1 C846,

1 C848,

1 C849,

2 R843,R842,

1 R846,

1 R848,

1 R849,

1 U850,

1

Usage Location

10 411032006020R

SPK,AI/A,LE19S1-710

DIO FR10-10-LF 1000V/1A AT(FRO

10 411032006040R

NTIER)RoH

DIO FR107 1000V/1A DO-41(MOSPE

10 411020053090R

C)RoHS

DIO PS1010R 1000V/1A DO-41(PAN

JIT)RoHS

MOSPEC, 0

PANJIT, 0

20 411020064090R DIO ER104 400V/1A DO-41(PANJIT RoHS PANJIT, 1 D852,

20 411032001020R

DIO SF10-04-LF 400V/1A DO-41(F

RONTIER)R

30 411020080090R

DIO P6KE170A 600W/100A DO-15

（ PANJIT）

FRONTIER, 0

30 411020080460R

DIO P6KE170A 600W/100A DO-15

（ SECOS）

SECOS, 0

30 411020080020R DIO P6KE170A-LF 600W/100A DO-15(FEC) FRONTIER,

40 430613050100R FUSE SLOW PICO II 5A/125V U/C,AT,ROHS LITTELFUSE,

0

1 F851,

38

Service Manual

40 430613050101R FUSE SLOW 5A/125V U/C,AT,ROHS WALTER, 0

50 415211500140R RES MF 1/8W 150Ω F,AT,RoHS

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

1 R20,

60 415237503140R RES MF 1/2W 750KΩ F AT MINI,ROHS

70 415213301140R RES MF 1/8W 3.3KΩ F,AT,RoHS

80 415213601140R RES MF 1/8W 3.6KΩ F,AT ,ROHS

90 415221009140R RES MF 1/4W 10Ω F,AT MINI,RoHS

100 415222700140R RES MF 1/4W 270Ω F,AT,MINI,RoHS

110 415211002140R RES MF 1/8W 10KΩ F,AT RoHS

120 415215101140R RES MF 1/8W 5.1KΩ F,AT,RoHS

130 415212703140R RES MF 1/8W 270KΩ F,AT,RoHS

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

140 414040208540R RES FSM 1W 0.2Ω J,AT MINI RoHS


YUAN,UNIOHM,欣統,

150 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 7.5MM HOTRON,YUANYE,

150 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 7.5MM HOTRON,YUANYE,

2 R850,R851,

1 R860,

1 R861,

1 R856,

1 R867,

2 R855,R859,

1 R858,

1 R871,

1 R853,

200 J2,J4,J6,J7,

0

160 430405000000R JMPR ROLL/KG D=0.6mm,AT,RoHS 12.5MM HOTRON,YUANYE, 0

170 492421400100H PCB,PCB,P/I ,1/OSP /CEM1/16,LE19S1,HF HUIHO,TATCHUN, 1

180 432002200220R FERRTIE BEAD 3.5*6*0.65 AT,RoHS

190 415211400140R RES MF 1/8W 140Ω F,AT,RoHS

CHILISIN,TAICHANG,

QUEENMAO,TZAI

YUAN,UNIOHM,欣統,

1 L854,

1 R21,

200 506140005700R

LABEL,BARCODE,BLANK,33x7mm,

ROHS,FOR PCB


HENGMINGDA,JIAYINMEI,KA

IDA,

Supplier

1

Usage Location

20 420426810261R

CAP SD 680UF/25V M 105℃ ST 10X20

ROHS

30 420424710260R

CAP SD 470uF/25V M 105℃ ST

10x16,RoHS

40 418210233030R

CAP CD X7R 1000pF/1KV K,VT

2X7R102K102K5

JNC,POE,SUCCESS(SEC),W

ANSHENG,

50 418210313030R CAP CD X7R 0.01UF 50V K,VT,ROHS

JNC,POE,SUCCESS(SEC),W

ANSHENG,

60 419111040030R CAP MTL X7R 0.1uF 50V K,VT, RoHS

70 430613830290R FUSE TIME LAG 3.15A/250V,RoHS

BELFUSE,CONQUER,LITTEL

FUSE,WALTER,

80 412022002240R IC KA431AZ 1%,VT (FAIRCHILD) RoHS FAIRCHILD,

80 412022002550R IC AME431BAJATB25Z TO-92-3(AME RoHS AME,

80 412022002830R IC AS431 TO-92 VT(A1SEMI)RoHS

80 412022002440R IC AS431BZTR-E1 TO-92(BCD) RoHS

A1SEMI,

BCD,

2 C862,C866,

1 C859,

1 F850,

1 I851,

0

0

0


10 419311053070R C SMD(0805) X7R 1UF/25V K ROHS REV:A

10 419311054070R C SMD(0805) X7R 1uF/16V K RoHS REV:A


30 419312254070R C SMD(0805) X7R 2.2uF 16V K RoHS

Supplier


O,


O,


O,

DARFON,MURATA,TAIYO,TD

K,WALSIN,YAGEO,

Usage Location

1 C1,

0

1 C2,

1 C3,

39

Service Manual


40 419314730060R C SMD (0603) X7R 0.047uF 50V,K RoHS 1 C5,

O,


50 419312720060R C SMD(0603) X7R 2700PF/50V K RoHS 2 C7,C8,

O,


60 419313320070R C SMD(0805) X7R 3300PF/50V K RoHS 2 C9,C10,

O,

70 411020047210R DIO BAV70 85V SOT23 (PHILIPS) RoHS PHILIPS, 1 D1,

70 411020047020R DIO BAV70-LF, 70V SOT-23(FEC) ROHS FRONTIER,

80 410500070290R XSTR AP9971GM,N-CH,SO8(APEC) RoHS APEC,

80 410050071380R XSTR AM9945N-T1-PF N-CH,SO8(AP)RoHS AP,

90 414908100910R RES SMD(0805)10Ω F,RT ROHS

100 414908010350R RES SMD (0805) 10KΩ J,RT RoHS REV:A

110 414916560310R RES SMD (0603) 560KΩ F,RT,RoHS


130 414916010450R RES SMD (0603) 100KΩ J,RT REV:A RoHS

140 414916330210R RES SMD (0603) 33KΩ F,RT RoHS

150 414904200910R RES SMD (1206) 20Ω F,RT ROHS

160 412000783630R IC INL816GN SOP16(O2 MICRO)

170 492422200000H

PCB,CRL-I ,2/OSP

/FR4/12(INL816)LE19S1,H


O,


O,


O,


O,


O,


O,


O,

O2,

EXPRESS,SHENG HUA,

0

1 Q1,

0

1 R1,

3 R2,R3,R13,

1 R4,

1 R5,

2 R11,R12,

2 R7,R8,

2 R9,R10,

1 U1,

1

PCBA IF BOM

E190S PCBA IF

BOM


ROHS

10 792811320700R

PCBA,I/F BOARD,W/O SPK,MI,LE19S1-710

RO

1

20 792811340700R

PCBA,I/F BOARD,W/O

SPK,SMT,LE19S1-710 R

1

30 629030029120R PROGRAM,W/O SPK,LE19S1-410 ROHS

40 506140005700R

LABEL,BARCODE,BLANK,33x7mm,

ROHS,FOR PCB

HENGMINGDA,JIAYINMEI,KA

IDA,


1

1

Usage Location

RO

10 430631050060R WFR. 5P 2.0MM 180° W/L ROHS

20 440819015030R

CON D-SUB FEM.15P RA W/O SCREW

DZ11AA1-H

30 432008010270R

XTAL 14.31818MHz HC-49US DIP 16pF

30PPM

40 420424700440R

CAP SD 47UF/16V M 105℃,VT2.5,5X11

ROHS

50 420421010440R

CAP SD 100uF 16V M,105℃ VT2.5,5x

11,ROH

60 430300801560R

HRN ASS'Y 8P 305MM UL1571#28 WITH

LOCK R


SPK,SMT,LE19S1-710 R

FOXCONN,JOWLE,

DLK,FOXCONN,TEKCON,ZJ

GHJ,

HARMONY,HUAN

MOUN,TXC,ZGC,

Supplier

1 CN601,

1 CN301,

1 X401,

Usage Location

40

Service Manual

10 419311044010R C SMD(0402) X7R 0.1uF/16V,K,RoHS TDK,WALSIN,YAGEO,

C505,C503,C502,C435,

C431,C430,C429,C428,

C426,C424,C423,C418,

C312,C601,C605,C604,

C606,C434,C440,C441,

C443,C444,

20 419302700510R C SMD(0402) NPO 27PF/50V J RoHS

30 419301010510R C SMD(0402) NPO 100PF/50V J,RoHS

40 419301000510R C SMD(0402) NPO 10PF/50V J,RoHS

MURATA,TDK,WALSIN,YAGE

O,


O,


O,

2 C307,C308,

2 C311,C309,

2 C413,C414,

50 411020026210R DIO BAV99 350mW 70V SOT-23(PHI RoHS PHILIPS, 3 D301,D302,D303,

50 411020026090R DIO BAV99 350mW 75V SOT-23(PEC RoHS PANJIT,

50 411020026020R

DIO BAV99-LF 350mW 70V SOT-23

(FEC)RoHS

0

FRONTIER, 0

60 411020047210R DIO BAV70 85V SOT23 (PHILIPS) RoHS

60 411020047020R DIO BAV70-LF, 70V SOT-23(FEC) ROHS

70 432002319041R

BEAD CORE SMD(0603)19Ω 500mA,

SBK160808

80 432002312144R

BEAD CORE SMD(0603)120Ω 300mA

SBK160808

90 432002360111R

BEAD CORE SMD(0805) 600Ω 2A

PBY201209T-

100 432002330140R BEAD CORE SMD(0603)300Ω 200mA RoHS

PHILIPS,

FRONTIER,

CHILISIN,MAGLAYERS,TAI-T

ECH,

CHILISIN,MAGLAYERS,TAI-T

ECH,

1 D306,

0

3 L414,L412,L601,

5

L413,L411,L403,L404,L

406,

110 410500045440R

XSTR LMBT3904LT1G NPN 200mA 40V

SOT23(

110 410500045210R

XSTR PMBT3904 NPN 200MA,40V

SOT23(PHILIP

PHILIPS, 0

110 410500045140R

XSTR MMBT3904LT1G NPN 200MA 40V

SOT23(ON

ON SEMI, 0

120 410060007270R XSTR AO3419 P-CH,SOT23(AOS)RoHS AOS,

120 410060011390R

XSTR ASM2307M/TR-LF P-CH

SOT-23(A1SEMI)R

A1SEMI, 0

120 410500068290R XSTR AP2305GN P-CH SOT23(APEC) RoHS APEC, 0

130 414918047250R RES SMD (0402) 4.7KΩ J,RT,RoHS


O,

11

R430,R413,R412,R411,

R410,R409,R408,R314,

R313,R312,R501,

140 414918010250R RES SMD (0402) 1KΩ J,RT,RoHS




O,


O,


O,

4 R428,R427,R426,R425,

3 R306,R305,R304,

5

R316,R315,R303,R302,

R301,

170 414918010150R RES SMD (0402) 100Ω J,RT,RoHS


O,

10

R404,R405,R319,R318,

R317,R311,R310,R309,

R308,R307,

41

Service Manual

180 414918010350R RES SMD (0402) 10KΩ J,RT,RoHS


O,

R502,R429,R420,R419,

11 R418,R415,R414,R424,

R423,R422,R421,



O,

1 R416,



O,

2 R503,R417,

210 412040098880R IC GM2621-LF-BC,QFP-128(ST)ROHS

220 412000332990H IC EC50117KAG 3.3V TO-252(E-CMOS)

220 412000332020R IC LD1117AL-3.3-A TO-252(UTC)RoHS

220 412000332830R

IC AS1117R-3.3.TR-LF,TO-252(A1

SEMI)RoHS

230 412000435481R

IC AT24C02BN-SH-T 2K

SOIC8(ATMEL)RoHS

ST,

E-CMOS,

UTC,

1 U401,

1 U601,

0

A1SEMI, 0

230 412000769830R IC AS24C02ID-18/TR-LF SOP8(A1SEMI) A1SEMI,

230 412000480280R IC M24C02-RMN6TP SO8(ST)RoHS ST,

230 412000480990R

IC CAT24C02WI-TE13

SOIC-8(CATALYST)RoHS

0

0

CATALYST, 0

240 412000330130R

IC AP1117E18LA 1.8V (ANACHIP)

SOT223-3L

240 412000330830R

IC AS1117L-1.8/TR-LF,SOT223(A1

SEMI)RoHS

240 412000599990H IC EC50117BBG 1.8V SOT223(E-CMOS)

A1SEMI, 0

E-CMOS, 0

ZD306,ZD305,ZD304,Z

250 411130962950R

ZENER 6.2V MMSZ5234B

SOD-123(PANJIT)RoH

06,

250 411121462950R

ZENER 6.2V BZT52-C6V2

SOD-123(WILLAS)ROH

250 411131562950R

ZENER 6.2V BZT52C6V2-7-F

SOD-123(DIODES)

260 419314755050R C SMD(1206) X7R 4.7uF/10V K RoHS

260 419354755050R C SMD(1206) X5R 4.7uF/10V,K,RoHS

270 444099030040R CON, SMD 1.0MM 30PIN with lock RoHS

280 419314733010R C SMD(0402) X7R 0.047uF/25V K,RoHS

WILLAS, 0

DIODES, 0

MURATA,TAIYO,TDK,WALSI

N,YAGEO,

MURATA,TAIYO,TDK,WALSI

N,YAGEO,

CVILUX,P-TWO,

TDK,WALSIN,YAGEO,

5

C442,C427,C412,C415,

C506,

0

1 CN501,

6

C306,C305,C304,C303,

C302,C301,

280 419314734010R C SMD(0402) X7R 0.047uF/16V K,RoHS TDK,WALSIN,YAGEO, 0

290 412000494310R IC PM25LV020-100SCE SOIC8(PMC)RoHS PMC,

290 412000721560R

IC W25X20AVSNIG SOIC8(WINBOND)

RoHS

1 U402,

WINBOND, 0

290 412000494190R

IC SST25LF020A-33-4C-SAE

SOIC8(SST)ROHS

SST, 0

310 414918022250R RES SMD (0402) 2.2KΩ J,RT,RoHS


O,

2 R320,R321,

320 414918051150R RES SMD (0402) 510Ω J,RT,RoHS

330 419311020010R C SMD(0402) X7R 1000PF/50V K,RoHS


O,

TDK,WALSIN,YAGEO,

340 492421300100H PCB, I/F ,2/OSP /FR4/16, LE19S1 HF

PCBA KEYPAD BOM

42

EXPRESS,SHENG HUA,

R505,R506,R507,R508,

10 R509,R510,R511,R512,

R513,R514,

1 C607,

1

Service Manual

E190Sf PCBA KP

BOM.xls


792811500000R PCBA,KEYPAD BOARD,LE19S1 ROHS


10 792811540000R PCBA,KEYPAD BOARD,SMT,LE19S1 ROHS

20 430602680070R SW METAL DOME 180gf 4P D07,RoHS

FOXCONN,HUA-JIE,唯

佳 _BEST,

30 505040206500R

ITEM P/N

INSULATOR,MYLAR,KEY-PAD

PCB,72.5X10.6x0.

Description

JEOU UEI,

Supplier

1

1

1

Usage Location

792811540000R PCBA,KEYPAD BOARD,SMT,LE19S1 ROHS

10 411070033500R LED SMD 0603 Y/G HTL-19-22VYVG C/TR8(HON HONGTONG, 1 LED1,

10 411070044500R LED SMD 1612 Y/G KPTB-1612SYKC GKC-SZ(KI KINGBRIGHT, 0

10 411070125550R

20 492421500000H

LED Y/G 19-226A/Y5G7C-A01/2T(everlight)

PCB, K/P ,2/OSP /FR4/08, LE19S1 HF

EVERLIGHT,

EXPRESS,SHENG

HUA,

30 430631080160R WAFER 8P 1.0MM SMD V/A WITH LOCK ROHS FCN,

40 411101756950R

40 411100956952R

ZENER 5.6V MMPZ5232BPT

SOD323(Chenmko)Ro

ZENER 5.6V BZT52-C5V6S

SOD323(PANJIT)Ro

0

1

1 J1,

PANJIT, 0

43

Service Manual

Attachment 2- Schematic

E190S ST gm2621

RevA

44

Service Manual

45

Service Manual

46

Service Manual

47

Service Manual

48

Service Manual

49

Power

Service Manual

50

Service Manual

51

Service Manual

52

Service Manual

53

Service Manual

54

Service Manual

Attachment 3- PCB Layout

IF board Top Layer

55

Service Manual

IF board Bottom Layer

56

Service Manual

power layout

57

Service Manual

58

Dell E190Sf Service manual

Service Manual

LCD Monitor E190Sf

Table of Contents

Chapter 1- PRECAUTIONS & SAFETY NOTICES

Chapter 2- SERVICE TOOLS & EQUIPMENT REQUIRED

Chapter 3- CIRCUIT THEORY

2.1 Inverter PWM circuit

2.2 Power PWM circuit operations

Chapter 4- Disassembly & Assembly

DELL E190Sf DISASSEMBLY BLOCK

DELL E190Sf ASSEMBLY BLOCK

Chapter 5- TEST AND ADJUSTMENT

Chapter 6- TROUBLE SHOOTING

Chapter 7- RECOMMENDED PART LIST

E190S Critical Components List

Attachment 2- Schematic

Attachment 3- PCB Layout

power layout

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