SERVICE MANUAL VGA MONO MONITOR

SERVICE MANUAL

VGA MONO MONITOR

ML467

*

ML267

*

CONTENTS

• SPECiFiCATIONS .................................................................... 2

• IMPORTANT SERVICE SAFETY IMPORMATION ........................................... 3-4

• THEORY OF OPERATION ............................................................. 5-6

• MAJOR OPERATING COMPONENTS ................................................... 7-8

• DISASSEMBLY INSTRUCTION ........................................................... 9

• BLOCK DIAGRAM .................................................................... 10

• ADJUSTMENT METHOD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11

• ALIGNMENT INSTRUCTIONS ........................................................... 12

• TROUBLE SHOOTING ............................................................... 13-16

• PRINTED CIRCUIT BOARD ........................................................... 17-18

• WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 19

• EXPLODED VIEW ................................................................... 20-23

• REPLACEMENT PARTS LIST ........................................................ 24-32

• SEMICONDUCTOR IDENTIFiCATION .................................................... 33

• WAVEFORMS ........................................................................ 33

• SCHEMATIC DIAGRAM .............................................................. 34-35

• CIRCUIT DIAGRAM DISPLAY SYMBOLS .................................................. 36

• RMS MEASUREMENT RESULTS OF THE IC'S ............................................ .36

1. Monitor Descriptions

This CRT display monitor is operates in a separate drive mode input and is compatible with IBM PS/2.

2. Display Monitor Electrical Characteristics

• AC power input

*

Power supply :

1) 110-120VAC 60HZ - USA version

2) 220 VAC 50HZ - Europe version

*

Power consumption :

1) AC 0.6A MAX-USA version

2) AC O.4A MAX-Europe version

• Video

*

Input: O.7Vp-p Separate ANALOG signal.

*

Band width: 30 MHZ at-3dB

*

Video gain : 20 Vp-p min.

• Synchronous

*

Type: Separate, TTL level,3-Mode

*

Input synchronizing signals :

Mode 1 Mode 2 Mode 3

Horizontal

1) Frequency(kHz) 31.47

2) Polarity +

Vertical

1) Frequency

2) Polarity

70.0B

-

Resolution(H X V)

720x

350

31.47

-

70.0B

+

720x

400

31.47

-

59.95

-

640x

4BO

• Recommendable display area

MODEL Width[MM]

ML2671

ML4671

207±3

230±3

Height[MM]

155±3

170±3

• Cathode ray tube specification

Remark

MODEL

ML2671

ML4671

CRT size

12"

14"

Face radius

Remark

1200mm

1524mm

SPECIFICATION

*

Deflection angle :

90°

*

Implosion protection :

Shrinkage band with mounting lug.

*

Phosphor: WD(paper white)

*

Face: Direct etched

• High voltage

*

Anode voltage :

12 KV±0.5KV at 1K= 0 uA

*

Voltage regulation:

300V max. (1 K

=

0 to 40uA)

• Tilt:

±1°

max.

• Picture linearity

Horizontal : 6% max.

Vertical: 6% max.

• Geometric distortion

Any horizontal and vertical lines should be within the horizontal and vertical 3.0mm slits.

• Brightness

*

Max.brightness: BO F/L(USA)

60 F/L(EUROPE)

• Contrast gain : 12dB min.

• Signal cable pin connection

*

Signal connector : 15 pin miniature "0" shell type.

*

Connection:

Pin 1 : no pin

Pin 2 : video signal

Pin 9 : no Pin

Pin 3 : no pin

Pin 4 : no pin

Pin 5 : self test

Pin 6 : no pin

Pin 10 : no pin

Pin 11 : no pin

Pin 12 : digital ground.

Pin 13 : H-sync.

Pin 14 : V-sync.

Pin 7 : video return

Pin B : no pin

Pin 15 : no pin

3. Mechanical Characteristics

Remarks

MODEL Dimension;:,

WxHxD[MM]

ML2671 309X251X307

ML4671 320X30B.4X326

Weight

[Kg]

7.5·

B.3

W/STAND

W/STAND

2

IMPORTANT SERVICE SAFETY IMPORMATION

Service w?rk should be performed only by qualified service technicians who are thoroughly familiar with all of the following safety checks and servicing guidelines:

WARNING

1. For continued safetY,do not attempt to modify

2. the circuit.

Disconnect the

AC power before servicing.

3. Semiconductor heat sinks are potential shock hazards when the chassis is operating.

SERVICING THE HIGH VOLTAGE SYSTEM AND

PICTURE TUBE

When servicing the high voltage system, remove the static charge by. connecting a

1

Dkohm resistor in seri,es with an ',inSUlated wire(such as a test probe) between the chassis and the anode lead. (The AC line cord should be disconnected from the

AC outlet.)

1.

2.

The picture tube in this display monitor employs integral implosion protection.

Replace with a tube of the same type and number for continued safety.

3. Do not lift the picture tube by the neck.

4.

Handle the picture tube only when wearing shatter proot goggles and after discharging the high voltage anode completely.

X-RADIATION AND HIGH VOLTAGE LIMITS

1.

Be sure all service personnel are aware of the procedures and instructions covering X-radiation. The only potential source of X-ray in a current solidstate display monitor is the tube.

However,the picture tube does not emit measurable X-ray radiation if the high voltage is as specified in the "high voltage check" instruction.

It is only when high voltage is excessive that

X-radiation is capable of penetrating the shell of the picture tube, including the lead in glass material. The important precaution is to keep the high voltage below the maximum level specified.

2.

It is essential that serviceman have available at all times an accurate high voltage meter. The calibration of this meter should be checked periodically.

S. High voltage should always be kept at the rated value - no higher. Operation at high voltages may cause a failure of the picture tube or high voltage circuitry and,also under certain conditions,may produce radiation in excess of

4. desirable levels.

When the high voltage regulator is operating properly there is no possibility of an X-radiation problem.

Everytime a color chassis is serviced,the brightness should be tested while monitoring the high voltage with a meter to be certain that the high voltage does not exceed the specified value and that it is regulating correctly.

5. Do not use a picture tube other than that

6. specified or make unrecommended circuit modifications to the high voltage circuitry.

When troubleshooting taking test measurements on a display monitor with excessively high voltage, avoid being unnecessarily close to the display monitor. Do not operate the display monitor longer than is necessary to locate the cause of excessive voltage.

BEFORE RETURNING THE DISPLAY MONITOR

Fire and Shock Hazard

Before returning the display monitor to the user,perform the following safety checks:

1. Inspect all lead dress to make certain that the leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the display monitor.

3

2. Inspect all protective devices such as nonmetallic control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacitor networks, mechanical insulators,etc.

3. To be sure that no shock hazard exists,checks for leakage current in the following manner:

• Plug the AC line cord directly into a 120volt AC outlet. (Do not use an isolation transformer for this test)

• Using two clips leads. connect 1.5 kohm.10 watt resistor paralleled by a 1.5uF capacitor in series with all exposed metal cabinet parts and a known earth ground,such as electrical conduit or electrical ground connected to earth ground.

• Use a SSVM or YOM with 1000 ohms per-volt or higher sensitivity to measure the AC voltage drop across the resistor. (See Figure 1.)

• Connect the resistor to all exposed metal parts having a return path to the chassis (metal cabinet. screw heads. knobs and shafts. escutcheon. etc.) and measure the AC voltage drop across the resistor.

• Any reading of 0.3volt RMS (this corresponds to

0.5milliamp.AC) or more is excessive and indicates a potential shock hazard which must be corrected before returning the display monitor to the user.

SAFETY NOTICE

Many electrical and mechanical parts in this chassis have special characteristics often pass unnoticed and the protection afforded by them can not necessarily be obtained by using replacement components rated for higher voltage,wattage,etc.

Replacement parts that have these Special safety characteristics are identified in this manual.and its supplement electrical components having such features are identified by a

! in the Parts List and

Schematic Diagrams.

Before replacing any of these components. read the

Parts List in this manual carefully. The use of substitute replacement parts that do not have the same safety characteristics as specified in the Parts List may create shock. fire. or other hazards.

AC

VOLTtoETER

TEST PROBE

TO EXPOSED TO KNlWEN

EARTH GROUNl

Figure 1. Leakage Current Test Circuit

4

THEORY OF OPERATION

GENERAL

This is a high-resolution monochrome display monitor, using a paper-white phosphored CRT with etched faceplate.

It uses one video signal input and separated sync signals.

It can operate in all of the VGA modes.

DESCRIPTION

1. Main Board

1-1. Power Supply

This is a constant-frequency switch-mode power supply using L4960 monolithic integrated circuit.

The output voltage regulation is achieved by means of a variable duty cycle. The output voltage of this power supply is fed back into tbe pin 2 of L4960.

This voltage is compared to reference voltage internally. The difference of these voltages control the duty cycle of output current. 0401 to 0404, and C404 to C405 from input DC supplier.

C408, C409, R404 are the components for frequency compensation, R403, C406 are for oscillation of sawtooth wave. C407 is for soft start of this circuit. 0405 is a flywheel diode for continuous flowing current. Output voltage is varied byadjusting VR401 potentiometer.

1-3. Horizontal output stage 0305

0305 is a horizontal output switch which is closed during the scan period and opened during the flyback. It sinks a driver signal from IC302 through

0304. The flyback period is determined by the resonance of C316 and deflection yoke. C316 makes the necessary S-correction.

Because of the losses in the deflection yoke, a linearity correction is required. This is achieved by

L302.

The horizontal screen size can be varied by adjusting L303. The high voltage of 12.5KV for

CRT anode is also generated in the flyback transformer by use of the flyback pulse.

1-4. Vertical processor IC 201

IC201 performs following functions.

Vertical oscillator

Ramp generator

Linearity control

Output amplifier

There are three vertical size controls : VR202,

VR203, and VR204. VR202 is for mode 3, VR203 for mode 2, and VR204 for mode 1. Each mode is automatically selected by IC301.

1-2. Horizontal processor IC302

IC302 performs following functions.

Horizontal oscillator

Phase-locked loop for frequency and phase comparison.

Phase-locked loop to compensate various delay times of the horizontal output transistor.

The sync signal from 0303 is fed into pin 3 of

IC302 and flyback pulse into pin 4. These two signals are compared and the circuit is locked to a correct frequency and phase.

1-5. Dynamic Focus

0501 is used to provide dynamic focus voltage which is added to G4 voltage of the CRT. This voltage is needed to change G4 voltage according to the angle of the beam.

2. CRT Board

IC101 (M51392P) contains wide bandwidth video amplifier, gain control, pedestal clamp and brightness control circuit.0103 and 0104 from a cascade video amplifier circuit of which its output is applied to the cathode pin of the CRT.

5

3.

Line Filter Board

This board contains fuse and EMI filter components.

IMPORTANT:

When replacing the power supply, make sure that the black ground wire is properly attached to the main chassis frame. When replacing the fuse, make sure that the fuse is of the same type and rating as the original.

*NOTE:

The adjustment requires the connection of a personal computer to the monitor. Although the monitor is adjusted before it is delivered, readjustment may be required when the setting position is changed or when a component is replaced.

6

Ml2671

1. FRONT VIEW

MAJOR OPERATING COMPONENTS

1) Power Switch

2.

REAR VIEW

t;;;;;;;;;;;;;;;;;~~~~--POWER

SWITCH

--POWER INDICATOR

: Push the power switch to tum the unit ON.

2) Power Indicator

3) Brightness Control

4) Contrast Control

5) Signal cable

6) Power Cord

: When. the monitor Is on, the power Indicator(Green) wUI light go on.

: Turning this control adjusts the overall brightness.

: Turning this control adjusts this display contrast.

: Connector to the terminal of CPU. .

: Connect with specified outlet

7

ML4671

1.

FRONT VIEW

MAJOR OPERATING COMPONENTS

1) Power Switch

2.

REAR VIEW

r----

~

POWER SWITCH

~~;§§§§~~~----POWER

INDICATOR

: Push the power switch to turn the unit ON.

BRIGHTNESS

CONTRAST--

I

1 0

•

0 01

-======<f===

-POWER CORD

2) Power Indicator

3) Brightness Control

4) Contrast Control

5) Signal Cable

6) Power Cord

: When the monitor is on, the power indicator(Green) will light go on.

: Turning this control adjusts the overall brightness.

: Turning this control adjusts this display contrast.

: Connector to the terminal of CPU.

: Connect with specified outlet

8

DISASSEMBLY INSTRUCTIONS

1. Fig. A (CABINET)

Loosen two screws (A) holding Cover·Rear and Cover·

Front, and the screw (B) in order to release the Cover·

Rear from the Chassis·Frame, and the screw (C) in order to release Cover· Rear from the Back-Holder, Cord.

Remove the Cover-Rear by pulling Cover-Rear backward while pushing the inner latches in direction of (E), using two jigs(D).

2. Fig. B (PWB's)

1) The CRT must be discharged firstly. Refer to the high voltage discharge procedure for important safety precau· tions.

2) Remove the CRT's anode cap(a) from the CRT.

3) Disconnect the ground lead and remove the PWB-CRT from the Chassis-Frame.

4) Remove Chassis· Frame from the Cover-Front by loosening screws (b).

5) Loosen two screws (c) holding the Chassis-frame and

Back-Holder, Cord.

6) Loosen five screws (d) from the Chassis-Frame and remove PWB·Main.

7) loosen two screws (e) from the Chassis-Frame and remove

PWB·Power.

8) Loosen four screws (f) to remove Trans·Power from the

Chassis·Frame.

9) Remove the lug·terminal from the Chassis· Frame by unscrewing (g).

FIGURE B. PCBS

1

I

~v

1 j;EfJJ

(MATERIAL STEEL PLATE)

FIG 1

9

FIG 2

o

VIDEO

VIDEO

SIGNAL

0--

INTER FACE

I C 1 0 \

VERT.

O~--t104

SYNC .......

SYNC.

INTERFACE

I C 301

HORZ.

O~------~

SYNC .......

HORZ. DRIVE

0303,0304

I C302, T301

VIDEO

DRIV E

0101,0102 t

CONTRAST

VR 102

VIDEO

OUTPUT

0103 0104

BRIGHTNESS

VR502 n

I I

I

I I

I

I I I

I

I I

CRT

14"(12")

/

-........,:rr-......

---o

Y

VE R T.

DRIVE 8 OUTPUT ---...

I C 2 0 I L20l,L301

CRT CONTROL

CIRCUIT

0501

F B T

HORZ.

OUTPUT

0305

~

T302

NOISE

AC POWFR

INPUT

·OD----t~

FILTER

C401,C402

C403

POWER

I--~..t

TRANSFOR-

~---

....

R EGULATO R

MER

I C 401

T401

B+

ADJUSTMENT METHOD

SEQUENCE

1

ITEM

ADJUSTED BY

B+(FBT SUPVR401

PLY VOLTAGE) (V-ADJST)

2 H -HOLD VR301

(H-HOLD)

3

4

S

6

7

8

GOAL

+24± 0.2V

ADJ. CONDITION

H-L1NEARITY

H-WIDTH

L302

(H-L1N)

L303

Adjust screen at horizontal center position of raster.

A same character size of horizontal axis.

FULL CROSS

HATCH PATTERN or

FULL "H"PATTERN.

Refer to the page 4.

~MODE3) et FULL WHITE

PATTERN and bringhtness 30F/L.

Next, change to CROSS

HATCH PATTERN

V-HOLD VR201

Vertical free running Frequency:

S4±2(Hz).

No signal.

V-LINEARITY

V-SIZE

VR20S

1)VR202

(V-SIZE1)

2)VR203

(V-SIZE2)

3)VR204

(V-SIZE3)

A same character size of Vertical axis

Refer to the page 4. A same condition

(MODE3) as the adjustment

A same sequence method sequence #4.

7-1. (MODE2)

A same sequence

7-1.(MODE1)

CENTERING CENTERING MAGNET Adjust screen at

OF DEFLECTION central point.

YOKE

FULL CROSS-HATCH

PATTERN or FULL

"H" PATTERN

REMARKS

9

10

TILT DEFLECTION YOKE Turn the DY in order to adjust within

± 1 deg of tilt.

GEOMETRIC G/D COMPENSAT-

ION MAGNET

Adjust G/D by magnet in order to enter within overlay jig.

11

BRIGHTNESS VR503

(SUB-BRT.)

Adjust VR503 in order to instantly disappear the back-raster.

Center

= position

(detent) of VRS02

(EXT-BRT.)

12 CONTRAST

VR101

(SUB-CONT.)

13

FOCUS VR501

Adjust VR101 in order to make brightness to

40±SF/L.

Set FULL WHITE

PATTERN(MODE3).

Next,set VR102

(CONTRAST) to max.

Ad

6 ust VRS01 in

FULL "H" PATTERN

(F CUS) order to make the total focus of the screen to optimal status.

11

ALIGNMENT INSTRUCTIONS

Alignment Parts and Locations

IC301

IC302 o

O

H-HOLD

IC201

I I

VR204

V-SIZE

VR203

V-SIZE

D

MODE

I

D

M0

2

DE

I I

VR202

V-SIZE

D

VR205

V-LIN.

VR201

V-HOLD

D

D

T301

@

L303

H-WIDTH

VR501

FOCUS

C]

VR503

SUB-BRIGHT

C]

L302

WO

H-LIN·D

MODE

3

[J

VR401

(OC24V CONTROL)

IC401

Q305

12

TROUBLE SHOOTING

1. NO POWER

No raster appears and power indicator is not ON in spite of supplying rated AC power input.

NO POWER

Does 32VAC appear between the secondary leads ofT401?

YES

NO

Does line voltage appear between the primary leads ofT401?

YES

NO Check power cord

SW401, F401, C401

C402, C403.

I

CheckT401.

I

Does 24V appear between

J401 and ground?

NO

YES

Does 38V appear between the #1 pin of 1C401 and ground?

YES

NO

Does the output pulse of

IC302 appear at the #1 pin of 1C302?

NO

YES

Does 9.3V appear between the #6pin of IC302 and ground?

YES

NO

Check 0401

~

C404,C405

Check 1C401, 0405,

L401, C411, C412,

C413, C420

Check R324, R325,

C303,C304

Check 1C302.

Does drive pulse appear at the base of T305?

NO

Check Q304,R329,T301

YES

Check Q305,D303,

C315,T302.

13

2. NO RASTER

Power supply and horizontal circuits operate normally, but there is no raster.

NO RASTER

I s the heater of CRT bright reddish?

NO Does 12V appear between the #4 pin of CRT and ground?

NO

Check R509, 0503

YES

YES

I

Check CRT socket,

CRT.

• i Does 12.5KV appear between the anode of CRT and ground?

NO

I

CheckT302

I

YES

Does 600V appear between the #6 pin of CRT and ground?

Does 60V appear between the cathode of 0502 and ground?

NO

YES

Is the voltage of G1 changed by the position of brightness controls

(VR502,VR503) ?

YES

NO

NO

Does 650Vp-p flyback pulse appear between the #9 pin of T302 and ground?

NO

I

CheckT302.

YES

Check 8503, C511

R511,D501.

I

Check VR502,VR503,

Brightness connector assy.

I

Check D502,T302

I

YES

Check CRT socket,CRT

14

3. NO PICTURE

No picture on screen video signal sou'tce is properly connected.

NO PICTURE

Does 60V appear between the cathode of 0502 and ground?

NO

....

,.

YES

Check 0502,T302,C111,

C112,C516

Does proper video signal appear at the #1 pin of

IC101?

NO

YES

Does proper video signal appear at the #8 pin of

IC101?

NO

Check signal cable,VR101,

C101,C102.

YES

Does 12V appear between the #14 pin of IC101 and ground

YES

I

Does 4.5Vp-p flyback pulse appear at the #12 pin of

IC101?

YES

I

Check 0101,0103,0104,

0201,0101,0102,R111,

R116,R117

NO

NO

Is the waveform at the to cathode of 0102 similar the waveform at the

#8 pin of IC101 except blanking-pulses?

YES

NO

NO Does the proper video signal appear at the collector of 01 04?

YES

Check R121,S501,CRT,

CRT socket.

Check 0104,R120,R122,

R123,R130.

Check R125, 0104

C103, C104

Check R313, R314,

IC101,0302.

Check IC101.

15

4. IMPROPER HORIZONTAL OR VERTICAL SYNCHRONIZATION

There is no stable. It moves horizontal or vertical direction.

[ IMPROPER SYNC.

Do proper horz.and vert. sync. signals appear at the end of signal cable?

NO

I

Check signal cable.

YES

I

Does picture moves horz. direction?

NO

YES

Does proper horz.sync. signal appear at the #3 pin of IC302?

NO

YES

Check IC302,VR301 ,R322,

C305, C306,C311,C312.

Does proper vert. sync. signal appear at the #3 pin of IC301?

YES

I

Check IC301 ,0303,R303,

R304, R305, C302, D530,

R530,C530,C531.

NO Check IC301, D530,

R530, C530, C531

Check IC201, C202,

C203, VR201, R206

5. BLANKING FUNCTION DEFECT.

Vertical retrace line appears on the screen when the external brightness control(VR502) is set to the high range.

BLANKING FUNCTION

DEFECT

I

Does 5V appear between the cathode of D530 and ground?

I

Check 0201 ,R225,R226,

R227,C215.

NO Check R530,D530,C530,

C531.

16

Top View

p.e.BOARD VIEWS

Main PCB

17

Top View

Video PCB

Bottom View

Power PCB

CAUTION:CONTINUED PROTECTION AGAINST

FIRE HAZARD,REPLACE ONLY WITH

SAME TYPE AND SAME RATING.

18

WIRING DIAGRAM

ML2671

V R 5 0 2 Q F

V R I 0 2 0 F

VR502

VRI02

WHITE

BLACK

FILTER-PCB

BLACK

WHITE

BLUE (SHIELD)

YELLOW

BLACK

WHITE

.EUROPE

WHITE

(BRN)

VERSION.~~~~~~~~~~~~~~§@~Af~~~~~~1

•

WHITE

'BLACK (COAX/ALI

BLACK(SHIELD GND)

WHITE

(BLU)

== m

SIGNAL CABLE

POWER CORD

BLACK

EXPLODED VIEW

ML2671

20

4

8

4St 4543- 704-210

. ,

3~-402-040

473053-815-210

46 8033- 725-940

45 6000-709-010

44 7148-530-122

43 7008- I 40-253

426601-703-010

41 M904-00Q-4030

40 M904-00Q-4050

SHEll)- 8. V IDEO

CABLE -SIGNAL. ASSY

SPTE T0306

ML 4671A

POWER-CORD ..... C. ASSY MD 1.256A

LABEL-RATING

COVER-BACK

SCREW-TAP. RH

SCREW-PH

HOLOER-CORO{L)

ASSY-TRANS

ASSy-PCe POWER AC

SCREW-TH • o

Ml267 I I

BGE MO-1267

2S-3X 12 FE FZY

M4X25 FE rZB

NORYL PX- I 005 VO BGE 00

Ml 4671 ....

ML 4671A

+M4X8 FE FZY

39 7028- 140-08 I

38 7154-230-081

37 7148-530- eel

36 5682-702-710

357048-130-121

34 7304-701-110

33 2159-401-020

323914-700-410

SCREW-TAP PH

SCREW- T AP. RH

HEATSINK-IC

SCREW-RH

WASHER-REC

TRANSISTOR

PLATE-MICA

SHIELD-FBT

31 4542-707-110

30 7318103-001

29 3934-103-110

28 7208-1 13-001

27 71 48-!530-081

262119-601-900

25 7154-230-081

24 M904-000-4000

23 5684-701-710

22 7048- I 40-081

WASHER-SPRING

INSULA TOR- TR

NUT-HEX

SCREW-TAP ,RH

IC-POWER

SCR£W- T AP, PH

ASSY-PCB, MAIN

HEATSINK-IC 1170

SCREW-RH

2S-3X8 FE FZY W/WASHER

2S-3X 8 FE FZY

AI0505 HI4 T2.0 WHT

+3MX12 FE FZY

SBC-I TI.5 NI

000033

3M PC(22X28.5)

SBC- I SN ML4671 pI 3.0 FE FZY

4.5-80 2-2H N66 v-a

I-M3

FE FZY

2S-3X8 FE FZY

L 4960 (SGS)


ML 4671A

SBC-I TI.O SN

M4X8 FE FZY

21,7328-204-001 WASHER-TOOTHED

2~ 6,021 -702-5 I 0

!,~ ,¥905000-27

CHASSIS-FRAME

ASSY -CONTRAST, VR

8, ,M90!5- 000-27

I~

3029- 702 -210

ASSY-BRIGHT, VR

SWITCH-PUSH

16 '7048-130-031

15 7622-701-510 SCR£W-RH

14 M904-000-4020 KNOB- VR

13 7154,-

12

230-0

5684-706-318~

ASSY-PCB CRT

SCREW-TAP, PH

II 4042-706-110 HEATSINK - VIDE-O

10 6460-700-210 SHIELD -VIDEO

9 M9Q4-0Q0-3260 SUPPORT- CHASSIS

8

~~4-

701-010 ASSY OY

7 2019-125-410 EARTH-PLATE

CRT -MONOCHROME 6 7128-540- 2

5 7304-101-

19~1

4 6000-708-010

SCREW-TAP. TH

WASHER-PLAIN

2 M905-000-2600 SPRING-COIL

I 7622-701-810

NO CODE NO.

ASSY-LED

KNOB-POWER

DESCRIPTION.

B PI6XPUX T0.5 FE FZY

SECC TO.8

MD .... 1267

MO-1267

ES88213V

+M3X8 FE

PPO VO BGE

FZY

ML4671A.

2S-3X8FE FZY

A1050$ H14 TID WHW:SI-£R

ST-PE T0.306

NOYRL PX 1005 PPO VO BG E

ML 2571A

PBS3 SP-H TO,3

12HBYWDN

2S - 4X20FE FZY

165216 FE FZY

PPO VO BGE OOOZZZZBC

SUS-302 WPA PIO. 5

ML 4671A

PPO VO BGE MO- I 267

SPECIFICATION

2

4

4

'TV

21

EXPLODED

VIEW

ML4671.

16

3

41

49 3914-700-410 PLATE - MlCA

467048-140-081 SCREW-RH

3M PC (22)(8.5)

M4Xe FE FZY

41 7328 -204-001 WASHER- TOOHEO B PI6X PI4XTQ5 FE FZY

4 7304-101-190 WASHER-PLAIN

45 3054-81 1-810 POWER-CORD

165216 FE FZY

25-4040

25-4040

44 3053-402-0 I 0 SIGNAL-CABLE

43 61 14- 144-21 0 LABEL-SERIAL

42 6000-707-510 COVER-REAR

WHITE PAPER 120

NORYL PX I 005 VO BGE

41 5682-702-710 HEATSINK-IC

AI050S HI4 T2.0 WHT

40 2149-202-330 TRANSISTOR

39 7048- 130-

J

21 SCREW-RH

38 7304-701-\ 10

37 4542-705-321

WASHER-REC

SHIELD-FBT

000033

+M3X12 FE FZY

S8C-1 TI.5 NI

SBC-I SN

36 7326r03-Q(H WASHER-SPRING

353934-103-110

34 7208- I I 3-00 I

33 700B-140-253

INSULATOR-TR

NUT -HEX

SCREW-PH

PI 3.0 FE FZ~

2-2H N66 VO

I-M3 FE FZY

M4X2~ FE FZB

32 7126-540-150 SCREW-TAP. TH

31 M904-000-4030 ASSY-TRANS

2S-4X15 FE FZY

Ml 4671 A

30 M904-000-40!50 ASSY-PCB POWER,AC ML 4671A

+M4X8 FE FZY


29 7028- 140-081

28 7154-230-081

27 7148-530-081

26 7148-530-081

SCREW-TH

SCREW- T AP, PH

SCREW- T AP, RH

SCREW-TAP,RH

2!5 21 19-60 1-900 IC-POWER

24 7154-230-081 SCREW-TAP ,PH

23 M904-000-4000 ASSy-pee,MAIN

225684-701-710 HEATSINK-IC 1170

21 6601-703-010

20 6021-702- 510

HOLDER-CORD

CHASSIS FRAME

19 M904'OQO-4020 ASSY-PCB CRT

18 7148-530-081 SCREW-TAP ,PH

17 5684-706- 110

16 4542-706-110

HEATSINK-VIDEO

SHIELD-VIDEO

IS M904-000-3260

14 4554-701-010

13 64-702-210

12 7128-540-201

ASSY DY

EARTH-PLATE

WASHER-RUBBER

SCREW-TAP,TH

2S-3X8 FE FZY

2S-3X8 FE FZY

L4960(SGSJ


ML 4671A

SBC-I TI.O SN

NORYL

PX I

005 VO BGE

'SECC TO.a

ML 4671A

2S-3X8 FE FZY WjWASHER

AI050S HI4 TI.O WHT

SPTE TO.306

ML 2571A

PBS3 SP-H TO.3

C,R BlK

2S-4X20 FE FZY

I 4HBYWDN 1 1 20 19- 132-6 I 0 CRT -MONOCHROME

I a

M9015-000-2580 ASSY-BRIGHT,VR

9 7622-701-610 KNOB-VR

8 M905-000-2590 ASSY-CONTRAST.vR

Ml 4671 A

PPO va

BGE

ML 4671 A

7 6460-700- I 1 0 SUPPORT -CHASSIS

6

M~05-000-2600

ASSY LEO

IS

31529-702-7 I 0

4 7048-130-081

6000-706-010

6674-713-710

I 7622-701-610

SWITCH-PUSH

SCREW-RH

COVER-FRONT

SPRING-COIL

KNOB-POWER

NO COOE NO. DESCRIPHON

NORYL PX 1 005 VO BGE

ML 467 I A

ESB 8213V

+M3X8 FE FZY

NORYL PX I 005 VO BGE

SUS-302 WPA PIO.5

NORYL VO BGE

SPECIFICATION

I

I

5

2

4

23

22

REPLACEMENT PARTS LIST

PRODUCT SAFETY SHOULD BE CONSIDERED WHEN A COMPONENT REPLACEMENT IS MADE IN ANY

AREA OF THIS UNIT WITH A COMPONENT INDICATED BY A SAFETY-CRITICAL MARK.

THIS PARTS LIST AND THE SCHEMATIC DIAGRAM SHOW COMPONENTS WHOSE VALUE HAVE SPECIAL

SIGNIFICANCE TO PRODUCT SAFETY. IT IS PARTICULARLY RECOMMENDED THAT ONLY PARTS

SPECIFIED ON THE FOLLOWING PARTS LIST BE USED FOR COMPONENT REPLACEMENT POINTED OUT

BY THE SAFETY CRITICAL MARK.

C204

C205

C206

C207

C208

C209

C210

C211

C212

C213

Ref No.

8P

C201

C202

C203

Part No.

ASSY-PWB,MAIN

0509-400-116

3053-605-31 0

1416-318-471

1509-121-260

1509-121-750

C214

C215

C220

C300

C301

1417 -344-1 04

1609-401-720

1609-402-100

1505-724-332

1517-383-104

1517-383-104

1608-904-470

1417-318-101

1608-905-220

1505-723-1 04

1609-40 1-51 0

1608-908-068

1417-318-221

1417-318-101

1608-906-047

C302

C303

C304

*C305

1509-121-070

1417-344-104

1609-402-120

1509-452 -180

Description

WIRE-SO,COPPER;TA 0.6SN

CONN-8P ASSY;ML4671

C-CERAMIC,HK;CK45 B 50V 470-K

C-POL YESTER;C0921 M 100V 0.1 M-J

C-POLYESTER;C0921M 100V 0.15M-J

C-CERAMIC,HK;CK45(T)F50V 0.1 M-Z

C-ELECTROL YTIC;CE04W 25V 1000M


C-POL YESTER;C0921 M(T) 100V 0.0033-K

C-M,POLYESTER;CF922M 250V 0.1 M-J

C-POLYESTER;CF922M 250V 0.1 M-J

C-ELECTROL YTIC;CE04W(T) 25V 47M

C-CERAMIC,HK;CK45(T) B50V 100-K

C-ELECTROL YTIC;CE04W(T) 35V 22M

C-POLYESTER;C0921M(T) 100V 0.1M-J


C-ELECTROL YTIC;CE04W(T) 100V 0.68M



C-ELECTROL YTIC;CE04W(T) 50V 0.47M

C-POLYESTER;C0921 M 100V 0.0027M-J

C-CERAMIC,HK;CK45(T) F50V 0.1 M-Z


C-POLYSYTRENE;C009S 50V 1500-J

Remark

24

C406

C407

C408

C409

C411

C412

C413

C414

C420

CS01

CS02

CS03

CS04

CS15

C516

CS17

CS18

C530

C531

D201

D202

Ref No.

*C306

C307

C308

C311

C312

C313

*C314

*C31S

*C316

*C404

C40S

1S0S-723-222

1417-329-102

1417-318-331

1S05-723-1 03

1603-90S-471

1603-90S-471

1417-344-104

1608-904-100

1603-90S-471

1609-402-2S0

1 SOS-723-1 04

1S0S-723-562

1S17-353-223

141 9-901 -1 00

1609-403-100

1609-401-700

1609-403-180

1417-344-104

1608-903-101

2169-301-410

Part No.

1S0S-725-102

1S0S-724-332

1608-906-1 09

1S09-121-260

1S0S-723-1 03

1S09-121-070

1S09-121-260

1S07-SS3-183

1S39-00 1-2S0

1603-9S 7-222

1417-344-104

Description

C-POL YESTER;CQ921 M(T) 100V 0.001-K

C-POLYESTER;CQ921 M(T) 100V 0.0033-K

C-ELECTROL YTIC;CE04W(T) SOV 1 M

C-POL YESTER;CQ921 M 100V 0.1 M-J

C-POLYESTER;CQ921M(T) 100V 0.01-J

C-POLYESTER;CQ921 M 100V 0.0027M-J

C-POLYESTER;CQ921M 100 0.1M-J

C-POL YPROPYLENE;CQ922M 630V 0.018M-J

C-M,PAPER;CH021 H 2S0V 2.5M-K

C-ELECTROL

YTIC;CEO~63V

C-CERAMIC,HK;CK4S(T) F SOV 0.1 M-Z


C-CERAMIC,HK;CK4S(T) D SOV 1000-M

C-CERAMIC,HK;CK4S(T) B SOV 330-K


C-ELECTROL YTIC;CE04W 3SV 470M


C-CERAMIC,HK;CK4S(T) FSOV 0.1 M-Z

C-ELECTROL YTIC;CE04W(T) 2SV 10M


C-ELECTROL YTIC;CE04W SOV 10M

C-POLYESTER;CQ921M(T) 100V 0.1M-J

C-POLYESTER;CQ921M(T) 100V 0.0056M-J

C-M,POLYESTER;CF922M 630V 0.022M-J

C-CERAMIC,HK;CK45B 1 KV 0.01 M-K



C-ELECTROLYTIC;CE04W 160V 2.2M

C-CERAMIC,HK;CK(4S(T) F SOV 0.1 M-Z

C-ELECTROL YTIC;CE04W

(T)

16V 100M

DIODE; 1 N4148

2169-301-410

I

DIODE;1N4148

25

Remark

Ref No.

D203

D301

D302

*IC401

IC401

*L302

*L303

*L401

LED

PCB

0201

0301

0302

-

*D303

D304

*D401

*D402

*D403

*D404

D405

D501

D502

D503

D504

D530

EX-BRT

G1G2G4

H+IC

H-DY

HN

*IC201

*IC301

*IC302

Part No.

2169-206-100

2169-301-410

2169-403-697

2169-206-190

2169-206-100

2169-201-240

2169-201-240

2169-201-240

2169-201-240

2169-219-330

2169-206-020

2169-206-170

2169-206-170

2169-206-100

2169-403-557

3344-153-010

3054-614-910

7108-530-061

3344-112-010

3344-153-040

2119-101-270

2109-104-700

2119-103-130

2119-601-900

5682-702-710

2449-733-210

2449-433-310

2429-060-110

3344-153-01 0

3006-300-31 0

2139-301-070

2139-301-070

2139-301-070

Description

DIODE;RGP10G

DIODE;1N4148

DIODE-ZENER;RD 6.8EB1

(T)

DIODE;RGP30G

DIODE;RGP10G

DIODE;1 N5402(200V 3A)

DIODE;1 N5402(200V 3A)

DIODE;1 N5402(200V 3A)

DIODE;1 N5402(200V 3A)

DIODE;RG2Y/BYW 100-100

DIODE;RGP 01-12 RGP02-12

DIODE;RGP 15J

DIODE;RGP 15J

DIODE;RGP 10G

DIODE-ZENER;RD 5.1 EB1 (T)

CONNECTOR-PIN,BASE;B2B-XH-A(JST)

CONNECTOR-3P ASSY;JST HOUS 3P-SVF(300MM)

SCREW-TAP PH;2S-3x6 FE FZV

CONNECTOR-WAFER;5273-o2A MOLEX

CONNECTOR-PIN,BASE;B5B XH-A(JST)

IC;TDA 1170N KA2136

IC;KS74HCTLS86N

IC;MC1391P

IC-POWER;L4960

HEATSINK-IC;A1050S H14 T2.0 WHT

COIL-H,LlNEARITY;5.0-18.3UH

COIL-H,WIDTH;7.0-29.9UH

COIL-CHOKE;200UH


PCB-MAl N (ML4671); 197x153x1.6T

TRANSISTOR;2N3904

TRANSISTOR;2N3904

TRANSISTOR;2N3904

Remark

26

R207

R208

R209

R210

R215

R202

R203

R204

R205

R206

Ref No.

0303

*0304

*0305

0305

0305

~.

-

0305

T302

*0501

R200

R201

R216

R217

R218

R219

R220

R221

R225

R226

R227

R240

"

R300

R301

Part No.

2139-301-070

2149-301-437

2149-304-120

3914-700-410

3934~103-110

4542-707-110

2859-129-010

2139-204-070

1018-277-331

1018-277-273

1018-277-331

1018-277-274

1018-277-103

1018-377-100

1018-277-563

1018-277-304

1018-277-274

1018-277-125

1018-277-563

1018-277-823

1018-277-272

1018-277-273

1018-277-473

1018-277-339

1018-277-123

1018-377-109

1 018-277"222

2028-377-182

1018-277-100

1018-277-683

1018-277-331

1018-277-273

Description

TRANSISTOR;2N3904

TRANSISTOR;KSC1008-Y(T)

TRANSISTOR;SGS F461

PLATE MICA;3M PC(22x28.50)

INSULATOR-TR;4.5-8D 2-2H N66 CoO

SHIELD-FBT;SBC-1 SN ML4671

TRANS-FBT;FMG-1235EL

TRANSISROR;MPS A45

R-CARBON;RD 1/4T 330-J

R-CARBON;RD 1/4T

27K.:~


R-CARBON;RD 1/4T 270K-J

R-CARBON;TD 1/4T 10K-J





R-CARBON;RD 1/4T 1.2M-J



R-CARBON;RD 1/4T 2.7K-J



R-CARBON;RD 1/4T 3.3-J


R-METAL,FILM;RM 1/2T 1-J

R-CARBON;TD 1/4T 2.2K-J






27

Remark

-"

R330

R331

R355

R403

R404

*R405

*R406

R410

R411

R502

R503

R504

R505

R506

R320

R321

R322

R323

R324

R325

R326

R327

*R328

*R329

.

-

Ref

No .

R302

R303

R304

R305

R310

R312

R313

R314

Part

No.

1018-277-331

1018-277-103

1018-277-222

1018-277 -273

1018-277-272

1018-277-472

1018-277-472

1018-277-102

1018-277-182

1018-277-102

1018-277-153

1018-277-104

1018-377-331

1018-277-331

1018-277-123

1018-277-332

1018-277-103

1016-377-829

1018-277-101

1018-277-471

1045-527-391

1018-277-152

1018-277':153

1 018-277-392

1018-277-122

1018-277-331

1018-277-102

1018-277-103

1018-277-472

10 i 8-277-685

1018-277-124

1018-277-334

Description

R-CARBON;TD 1/4T 330-J







R-CARBON;TD 1/4T 1 K-J


R-CARBON;RD 1/4T 1 K-J


R-CARBON;TD 1/4T 100K-J






R-CARBON;RD 1/2T 8.2-J



R-METAL,OXIDE;RS2P 390-J












28

Remark

Ref No.

R507

R515

R516

R520

R521

R530

*T301

TR

TR

TR

TR

Part No.

1018-277-182

1018-277-125

1018-277-225

1018-277-823

1018-277-103

1049-427-221

2849-031-611

7304-701-110

7208-113-001

7048-130-121

7304-700-920

Description






R-METAL,OXIDE;RS1P 220-J

TRANS-H,DRIVE; 19x7.6MM

WASHER REC;SBC-l T1.5NI

NUT-HEX;l M3 FE FZV

SCREW-RH;

+

M3Z12FE PZY

WASHER-PLAIN;9S4810 FE PZW

Cl01

Cl0Z

Cl03

Cl04

Cl0S

Cl06

Cl07

Cl08

Clll

V-DY

VR201

VR202

VR203

VR204

VR20S

*VR301

*VR401

VRSOl

VR503

3344-127-710

1241-110-010

1241-110-014

1241-110-006

1241-110-006

CONNECTOR-PIN,BASE;JST RTB-1.5-2F

VR-SEMI;CET 117A Bl00K

VR-SEMI;CET 117A B200K

VR-SEMI;CET 117A B500K

VR-SEMI;CET 117A BSOOK

1241-110-00S

1241-108-003

1241-108-011

1241-108-012

1241-108-010

VR-SEMI;CET

117A

BSOK

VR-SEMI;CET 92A B5K

VR-SEMI;CET 92A B1K

VR-SEMI;CET 92A B2.SM

VR-SEMI;CET 92A B2S0K

PCB CRT/FILTER

0509-400-116 lS09-121-260

1609-401-680

1609-401-480

1419-204-820

WIRE-SO,COPPER;TA 0.6 SN

C-POLYESTER;CQ921M 100V O.OlM-J



C-CERAMIC,HK;CK45 F SOV 0.1 M-Z

1419-204-820

1609-402-230

1419-109-140

1417-318-101

1609-403-090

C-CERAMIC,HK;CK45 F SOV 0.1 M-Z

C-ELECTROL YTIC;CE04W 50V 3.3M

C-CERAMIC,HK;CK4S B 50V 0.01 M-Z

C-CERAMIC,HK;CK4S(f) B 50V 100-K

C-ELECTROLYTIC;CE04W 100V 47M

,

Remark

29

Ref No.

Cl12

C510

C511

CONTRAST

0101

0102

0104

G1G2G4

H+V

*IC101

IN-SIGNAL

PCB

0101

0102

*0103

0104

Q104

*0104

R101

R102

Rl03

R104

R105

R106

R107

Rl08

R109

R110

R111

Rl15

R116

Rl17

R118

1018-277-302

1018-277-332

1018-277-222

1018-277-333

1018-277-472

1018-277-222

1018-277-102

1 018-277-222

1018-277-471

1018-277-472

1018-277-470

1018-277-470

1018-277-560

Part No;

1419-204-820

1419-106-250

1419-901-100

3344-153-010

2169-301-410

2169-301-410

2169-406-020

3344-120-810

7108-530-061

2109-104-610

3344-120-060

3006-300-340

2139-401-750

2139-301-070

2149-301-360

4543-704-210

5684-706-310

2149-302-300

1018-277-561

1018-277-121

Description

C-CERAMIC,HK;CK45 F 50V 0.1 M-Z

C-CERAMIC,HK;CK45 B 500V 0.01 M-K

C-CERAMIC,HK;CK45 B 1 KV 0.01 M-K


DIODE; 1 N4148

DIODE;lN4148

DIODE-ZENER;l N4741A(11V)

PIN-BASE;JST RTB-l.5-3 VO WHT

SCREW-TAP PH;2S-3x6 FE FZY

IC;M51392P

CONNECTOR-PIN,BASE;B8B-XH-A

PCB-CRT(ML4671); 1 05x67x1.6T

TRANSISTOR;2N3906(SST)

TRANSISTOR;2N3904

TRANSISTOR;2N2369

SHIELD-B VIDEO;SPTE TO.306

HEAT-SINK,VIDEO;SBC-1 Tl.0 FE FT-2

TRANSISTOR;MPS-U06
















30

Remark

Ref No.

Rl19

R120

R121

R122

R123

R125

R130

R509

R510

R511

R512

R501

S505

S502

S503

S504

SOCKET

VIDEO

VR101

PCB

R401

3344-153-020

1241-110-004

POWER- PCB

3006-300-350

3344-131-020

1018-377-684

Part No.

1018-277-101

1018-277-102

1018-277-820

1045-527-471

1045-527-471

1045-427-680

1018-277-102

1045-427-680

1018-377-102

1018-377-473

1018-377-102

2029-010-010

2029-010-010

4569-001-110

4569-001-110

4569-001-110

3353-700-910

C401

C402

C403

C415

GND

1565-523-224

1461-137-806

1461-137-806

1565-523-473

3124-700-810

F401

F401

F401

L402

3364-700-210

4709-088-OS0

4709-060-010

2429-646-510

Description




R-METAL,OXIDE;2P 470-J

R-METAL,OXIDE;2P 470-J

R-METAL,OXIDE;RS 1P 68-J


R-METAL,OXIDE;RS 1P 68-J



R-CARBON;RD 1/2T 1 K-J

LAMP-NEON;DMS 9O-130V DC

LAMP-NEON;DMS 90-130V DC

SPARK-GAS;S-23(1

KV)

SPARK-GAS;S-23(1

KV)

\

SPARK-GAS;S-23(1

KV)

I

SOCKET -CRT;7PIN


VR-SEMI;CET 117A B200

PCB-POWER,AC(ML4671) ;62.5x50x1.6T

ONNECTOR-WAFER;B3P-VH(3P 3.96MM)


C-M,POLYESTER,AC;CaS 922M 250V O.22M-M

C-CERAMIC,AC;DE 7100F 222 MVAI

C-CERAMIC,AC;DE 7100F 222 MVAI

C-M,POLYESTER,AC;CaS922M 2S0V 0.047M-M

PIN-GT;14.2MM 2.35PI

HOLDER-FUSE;FC51 E,20M/M FUSE

FUSE;51S,250V 1A 20MM

FUSE;T250V 0.5A 20MM SEMCO

COIL-LlNE,FILTER;6MH(11x16MM)

31

Remark

VR502

BRIT

LED

LED

LED

LED

LED

SW401

SW401

SW401

SW401

SW401

Ref No.

T401

Part No.

3344-156-320

1-

MISCELLANEOUS

CRT-G

CRT-G

VR102

3054-224-210

3054-224-220

1201-102-902

CONTRAST 3054-617 -620

CONTRAST 4049-032-011

DY

V-DY

H-DY

CRT

CRT

T401

T401

1201-102-961

3051-640-610

2309-11 0-090

0659-422-500

3054-640-810

0659-410-021

0659-410-621

3529-702 -21 0

0659-422-500

3054-648-310

3054-617-040

0659-410-021

30S4-402-040

2439-054-230

3054-613-750

30S4-618-81 0

2019-125-410

2019-132-610

2869-298-030

2869-298-040

Q104

AC

AC

3054-223-730

3054-815-210

3054-812-310

GND 3054-302-210

Description

CONNECTOR-WAFER;B2P-LV,TN

GND-CRT ASSY;ML2671 ,3/16/0.2

GND-CRT ASSY;ML4671 ,3/16/0.12 T815

VR-ROUND;18SN 10SK B5K

CONNECTOR,2P ASSY;JST-2(2.5) L=340

FERRITE-CORE;RING 18

¢

VR-ROUND;18SNC1 10SK B50K

CONNECTOR,2P ASSY;JST HOUS XHP-2(2.5)BRT

LED;KLG 208E

TUBE-HISHI U/C;SUMITUBE F2 DIA 3.2 FD5 BLK

CONNECTOR,2P ASSY;JST XHP-2,B

+

TUBE-VINYL,u/C;AWGO 300V 105°C C-CLR

TUBE-VINYL,U/C;AWG6 300V 105°C C-CLR

SWITCH-PUSH;ESB8213V

TUBE-HISHI U/C;SUMITUBE F2 DIA3.2 FD5 BLK

CONN-2P ASSY;H-YHR-3N L-150M/M

CONNECTOR-AC,ASSY;REP,ASSY

TUBE-VINYL,U/C;AWGO 300V 1OsoC C-CLR

CABLE-SIGNAL;ML4671

DEFL-YOKE;DMK-1294EL(3)

CONNECTOR-DY,ASSY;CONNECTOR V-DY

CONN-HORZ DY ASSY;2x22AWG

CRT -MONOCHROME;12ABY WDN (ML2671 ONLY)

CRT-MONOCHROME;14HBY WDN(ML4671 ONLy)

TRANS-POWER,ASSY;P: 11SV,S:30V

TRANS-POWER,ASSY;P:230V,S:30V

(FOR EUROPE VERSION)

LUG-TERMINAL ASSY;AWG 18 BLK L-150

POWER CORD,AC,ASSY;K01 01 AS213

POWER CORD,AC ASSY;LP34 HOS WF

(FOR EUROPE VERSION)

GND-WIRE ASSY;BLK L-1S0MM 101S#18(T)

Remark

32

030S

• SEMICONDUCTOR IDENTIFICATION

1C401

0104

IC201

IC302

IC101

IC301

CD

[ j

®

CD

®

E::::::I

®

MS1392P

0

MC1391P

74HCTLS86N

0103

®

TDA1170

N

0101 0102

0201 0301

0302 0303

0304 OSOl

®

SGSF461

L4960

MPSU06

2N2369

2N3904

2N3906

KSC1008

MPSA44/45

WAVEFORMS

Waveform Measurement Conditions :

1. The voltage level and waveform at each point are given below on the rated input power when this set is connected to a personal computer with a video signal input at a white pattern with contrast max.

2.0---' indicates the waveform check points. (In the chart, waveforms are measured from the point indicated to chassis ground.)

LbQr12JJ

®

5 Vp-p IVI

®

3,2Vp-p IVI

~

®

2eV p-p IVI

[OJ

~

@)22VP-P IHI

@

IVp-p IHI lSQOl!]l!J]

@)38VP-P(HI

®

6,5Vp-pIHI

@

210Vp-pIHI l!J]USB[NJ

®

23Vp-p IHI

@

2.4Vp-p

I®

40V p-p

33

3410EM

SCHEMATIC DIAGRAM

MODEL NO:

ML4671(ML2671)

CHASSIS

NO:

GSI-1

WAR N I N G:

"THIS NONITOR CONTAINS SAFETY CRITICAL COMPONENTS ALL PARTS SHOWN IN

THE SHADED AREAS OF THE SCHEMATIC ARE SAFETY CRITICAL. FOR CONTINUED SAFETY REPLACE

SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'S RECOMMENDED PARTS.

REFER TO PARTS LIST FOR EXACT REPLACEMENTS."

A V E R TIS S MEN T:

"CE RECEPTEUR EST EQUIPE OE COMPOSANT CRITIQUES POUR LA

SECURITE TOUTES LES PIECES INDIQUEES DANS LES ZONES OMBREES DU SCHEMA SONT CRITIQUES

POUR LA SECURITE POUR MAINTENIR LE OERGE DE SECURITE DE L' APPA-REIL NE REPLACER LES

COMPOSANTS DONT LEE FONCTIONNEMENT EST CRITIQUE POUR LA SECURITE QUE PAR OES PIECES

RECOMMANDEES PAR LE FABRICANT.

CONSULTER LA NOMENCLATURE DES PIECES POUR TROUVER LES PIECES DE RECHANGE EXACTES.

*

NOTE

I. RESISTANCE IS SHOW IN OHM. K-I. 000 M-I. 000. 000.

RATED POWER OF RESISTOR NOT NOTED IN SCHEMATIC DIAGRAM IS 1/4W.

2.CAPACITANCE IS SHOWN IN UFo P-UUF (PICO FARAD) . .

RATED VOLTAGE OF CONDENSER NOT NOTED IN SCHEMATIC DIAGRAM IS SOV.

3. ABBREVIATION

@

R-METAL FILM

@

R-METAL OXIDE

®

C-POLYESTER

I®

NON POLAR CAPACITOR e

C-POL YPROPYLENE

@

C-METAL POLYESTER

®

C-POL YESTYRENE

4 .VOL TAGE IS READ WITH SSVM FROM INDICATED POINT TO SIGNAL GROUND.

S. THIS SCHEMATIC DIAGRAM IS SUBJECT TO CHANGE FOR FURTHER IMPROVEMENT.

SA

RI2S@ RS09

GND ) - -

GND

)----<

0104

.~CI03

IN4741A

'~~~eOU

~

RI05

2.2K

r·

CI04

1

"

RI06

33K

RI03

3K

RI07

4.7K

3.3Kr.1 2.2K

G(

VG.[J~2~

G102

2N3904

RIIO

(!7

2.2K

Rill

470

S8 IW

RI20

IK

~~30

VIDEO

CP

(1) 1:\31

12111 10

9

8r-...JL.-h

H

' " ' \ CI02 1

I

I.: "BII'.

IC 10 1

O---h--"'---'~ou r~~U'

CON RAST ,.,

RI09

IK

S

120 B200

2SV

CIOI

~ <1 ~. , o· 71 RIIS

SU -CONT 0.01

I

::!:~107 RIIS

47

®

P 3.3U

50V

1 0 . 01 , 4 7KJ, r - . _ - . . _ - - ,

•

,

,

RII7

47

G101

2N3906 r

k€

•

Q104

MPSU06

~SSOS

RI21

~

82

~S501L-<r~~H\

@

~W

2W

G103

2N2369 m h

I!!9l

2W

0101

IN414B

0102

IN414B

RII9

RIIB

SS

0 - - -

~CIII

"47U

100V

SS02

SS03

SS04

BK

+15

CP

+60, G1

I I I

I I I

I I I

Gil

G2 G41

G2 G4

Vi

14HBYWDN

VS

HS

GND

GND

GND

AC

(L)

GND

AC

(N)

SA

~:0IF401 h

I.,J,

•

330

II

~~410

R411

""LED IK r - - - - - - - . r - - - - R311

470

G301

I

2N3904 rSt

R310

LY

2.7K

I

!~301

,), IN414B

R201

27K

r·

+-"""'J~ __

_ _ _

1 @ 2 2 0 1 0

IW o.sw

CS30

1

"~tgeu

,

• DS30

' ROS.IE81

' C T 6 2

C20S tge ou

I

1

CGPIOG

I

1300V

U sl S' 3

>AMe rg2~4 2~CC'

. r fmO~I-O"""'-d-.r ,----"'R2:-I'::'S-t~R2:-1'::'9-..."'"--, ~

470

C211

~

I 82K 4

I:UMe

0,

~

S V

R217

27K r.

3.3

C213

1

168~

'-----+

~2~iI

R22S

IC201 -_.

TDA1170N

I 10 r - -

® 1.8K

R227

10

G201 m8~)- ~~g~ ~2N3904 m~

4.7K

®

-

, - - - + - - u . . . . . . , - - - . , . - - - - - - - - ' 9 ! f J S C

0.1

I

C203 rliVR201

::!:::r!o IS 8100K i

HGT

. V-HOLD R20S R207

0201

IN414B

0202

IN414B

®

R203

270K

R204

10K

SSK

VR203

BSOOK

V-SIZE. 2

~~

BSOOK

V-SIZE. 3

270K r-J!

6

®

RAM

SYNC R.G

~f1° h O I

R20B C207

270K 13300

"I "

C208 220

R209

I. 2M

C209

_ _

~~~O

~~~~

V-LIN

R220

12K

L.....(>-

~C214

I~IOOOU

RSOI

B

3 3K

.

RS02 RS03 RSOS

10K

@

R221 ®

~gS~2

C501

4. 7K

RS04

~~

C504

----_t---ll-+---'--+

S 8M

'.....

G501

tv

MPSA44/ 45

\ "

~~~-,

120K

RS07

I. BK

®

0.022

S30V

~S~~

VR501

82.SM

RSIS

I. 2M

VRS03 VRS02

~~~~~RT

. "--B-SO-K-

J

RS20

B2K

I r---

L~~F~O~C~US~

1:!:~S~t~

0501

______

~

1

0.01 RGPOI-12

IKV RGP02-12

.n

EXT-BRT

~~5C2.01

47U

2SV

,

R313

4.7K

R200

330

R301

27K

R300

330

4>--;\ 14

10

I

IC301

KS74HCTLSBSN

L402

,

S

2S0V I t n

I

C402

@ '1

C41S

L402

C403

1'2200

I

R302

330

13

II

I

@

C401 R401

0.22 S80K

2S0V O.SW

T302

1401

R325 R324 R322 R323 R32S

C300

100

330

O.SW

C420 R304

470U 2.2K

3SV

I>C304 f"330U

3SV

330 o

.SW

VR301

BSK

H-HOLD

I

C30S

ISK ::!:r ISOO

I

::!:r~IOOOP

----""3l

R303"'~~pl-2®,...::p"-_R..,,3"'OS---+-----....J

10K •

_r

2700 27K

I V -

'-----41-----1-1:

\!::

G303

2N3904

1

C303

0 . 1

R320

I.BK

®

r o.

OI

®

I

I

I

12K

sl

7

~

Mtr~gip

2 4 I,--I

C311

~

®

______

+-~.~~

2

'~-

T~I

~~m ~TIOll~T

R32

IK

® lOOK

1

C307

3300

®

d

O.I® R327

~:

C312 3.3K isC308 f'~U

SOV

R328 R329

10K 8.2

O.SW t-

R 3

-

3

-

0

C314 ®

"--o-l.~

100

',j,.

G304

KSC1008

•

~03

•

~02

0304

RGPIOG

~)-

R33S

~ao

~>--l

P

0

0303

GP30G

~

H-DY

FBT FMG-1235FL

~4rJ~

0401-4 hIN~4EA

I

L '"

W.::: .......

*

:+-

~~~8~UI

S3V r lIN

F~t-

CMP

IC401

L4960

GNO OSC

OUT~7--~~~--~~-_------4r------~--~-------t-----------------------t~

F.a2

S

200UH R405

3.9K

C414

L-+O-4-0S----+----i'~V-ADJST

3SV

3~eu

.1 f413

6

~

I I I

~

0503

RGPISJ

~h

Z ~~SI7

~~eu

B

I

,J,

OS04 '

RGPIOG

I I.cS~8 f"~60~

0502 '

RGPISJ

I.e!

IIII5~3

100V

R404 C40B R403 C40S C407 RG2Y R40S

, ISK r330 I. SKr;O r I O O O , , I. 2K

RS21

10K

34

35

CIRCUIT - DIAGRAM DISPLAY SYMBOLS

1. Resistor

• Resistance value

When no unit is provided : [

Q ]

K : [K-

Q ]

M : [M-

Q ]

• Rated permissible power capacity

When no display is mode: 1/4[W]

Others : Display are provided

• Resistor type

Under than 1/2[W] : Carbon resistor

Over than 1 [W] : Oxidized metal film resistor

2. Capacitor

• Capacitance

When no unit is provided:

1) Electrolytic - LuF]

2) E.T.C - [pF]

Others: Display are provided

• Withstand voltage

No display:

1) Polyester - DC 100[V]

2) E.T.C - DC 50[V]

Others : DC withstand voltage[V]

AC display : AC withstand voltage[V]

• Capacitor type

No type display : Ceramic and electrolytic capacitor

P : Polyester capacitor

MP : Metallized polyester capacitor

PS : Polystyrene capacitor

5

6

7

1

2

3

4

8

9

10

11

12

13

14

RMS MEASUREMENT RESULTS OF THE IC'S

Measured with high impedance V.T.V.M. or circuit tester under the rated line voltage.

Volt~ge reading may vary ± 1 0%. Video signal is a white pattern and mode 3.

Unit: Volts

ICS IC101 IC201 IC301 1C302

1C401

PIN NO. M51392P TDA1170N 74LS86 MC1391P L4960

3.8

0

2.3

6.7

0

3.7

0

3.1

6.0

0

4.8

1.4

0

11.8

2.3

14.5

1.8

7.6

14.0

6.5

6.8

0.4

2.9

2.0

0.6

1.5

*

*

0

4.8

0

.4.5

4.8

4.7

0.4

4.7

0

3.7

1.3

3.7

4.2

4.8

0.2

0

2.6

2.3

2.9

9.3

4.1

3.1

*

*

*

*

*

*

38.5

5.0

2.6

0

2.0

4.8

51.0

*

*

*

*

*

*

*

Memo

36

Printed

in Korea

Code No.:

8146-400-040

SERVICE MANUAL VGA MONO MONITOR

SERVICE MANUAL

VGA MONO MONITOR

CONTENTS

-

SPECIFICATION

IMPORTANT SERVICE SAFETY IMPORMATION

WARNING

TO EXPOSED TO KNlWEN

EARTH GROUNl

THEORY OF OPERATION

MAJOR OPERATING COMPONENTS

2.

MAJOR OPERATING COMPONENTS

DISASSEMBLY INSTRUCTIONS

0--

ADJUSTMENT METHOD

ALIGNMENT INSTRUCTIONS

TROUBLE SHOOTING

p.e.BOARD VIEWS

Main PCB

Video PCB

Power PCB

EXPLODED VIEW

EXPLODED

23

22

REPLACEMENT PARTS LIST

KV)

KV)

KV)

SCHEMATIC DIAGRAM

MODEL NO:

NO:

®

®

r·

k€

•

Gil

GND

r·

®

-

L.....(>-

'.....

4>--;\ 14

®

sl

•

Memo

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