Beko S3.1 42" PDP plasma display module Service manual

Beko Elektronik A.S Service Manual Plasma Display Module-Samsung V3

DATE: July 15, 2004

Beko

SERVICE MANUAL

107cm (42 Inch) Wide Plasma Display Module

MODEL : 42” S3.1 PDP

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1.Overview

1-1 Model Name of plasma Display

1-2 External View

1-3 Specifications

CONTENTS

2. Precaution

2-1 Handling Precaution for Plasna Display,

2-2 Safety Precautions for Service (Handling, prevention of a electrical shock, measure against power outage, etc)

3. Name & Function

3-1 Layout of Assemblies

3-2 Block Diagram:

3-3 Main function of Each Assembly

3-4 Product/Serial Label Location

4. Operation checking after rectification

4-1 Flow chart

4-2 Defects , Symptoms and Detective Parts

5.

Disassembling / Assembling

5-1 Tools and measurement equipment

5-2 Exploded View

5-3 Disassembling & Re-assembling

6. Operation Check after Repair Service

6-1 Check Item

6-2 Check Procedure

7. Operation Check

7-1 Adjustment Specification, Checking Position etc .

7-2 Adjusting procedure

8. Spare part list for the panel

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1. Overview

1-1 Model Name of Plasma Display

MODEL : 42” S3.1 PDP (S42SD-YD05)

1-2 External View

【 M1 = X Board + Y Board + Logic Board 】

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1-3 Specifications

No Item

1

2

3

4

Pixel

Number of Cells

Pixel Pitch

Cell Pitch

R

G

B

Specification

852 (H) × 480 (V) pixels (1 pixel = 1 R,G,B cells)

2556 (H) × 480 (V)

1.095 (H) ㎜ × 1.110 (V) ㎜

0.365 (H) ㎜ × 1.110 (V) ㎜

0.365 (H) ㎜ × 1.110 (V) ㎜

0.365 (H) ㎜ × 1.110 (V) ㎜

6

7

8

5

9

10

11

12

13

14

Display size

Screen size

Screen aspect

Display color

Viewing angle

Dimensions

Weight

Packing weight

Packing size

Broadcasting reception

932.940 (H) ㎜ × 532.800(V) ㎜

[ 36.73 inch × 20.98 inch ]

Diagonal 42" Color Plasma Display Module

16 : 9

16.77 million colors

Over 160°

(Angle with 50% and greater brightness perpendicular to PDP module)

982 (W) × 582 (H) × 52.9 (D) ㎜

Module 1

Module 1

About 16.6 kg

240kg ± 5kg (including modules) /

10pcs/BOX

L 1175 * W 1140 * H 970 (mm) / 10pcs/BOX

PL42SD003C 60Hz/ 50Hz, LVDS

Vertical frequency and

Video/Logic Interface

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2. PRECAUTIONS

** To prevent the risks of unit damage, electrical shock and radiation, take the following safety, service, and ESD precautions.

2-1 Handling Precautions for Plasma Display n PDP module use high voltage that is dangerous to human. Before operating

PDP, always check the dust to prevent circuit short. Be careful touching the circuit device when power is on. n PDP module is sensitive to dust and humidity. Therefore, assembling and disassembling must be done in no dust place. n PDP module has a lot of electric devices. Service engineer must wear equipment(for example , earth ring) to prevent electric shock and working clothes to prevent electrostatic. n PDP module use a fine pitch connector which is only working by exactly connecting with flat cable. Operator must pay attention to a complete connection when connector is reconnected after repairing. n The capacitor’s remaining voltage in the PDP module’s circuit board temporarily remains after power is off.

Operator must wait for discharging of remaining voltage during at least 1 minute.

2-2 Safety Precautions for Service (Handling, prevention of a electrical shock, measure against power outage, etc)

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( Safety Precautions ) n Before replacing a board, discharge forcibly

The remaining electricity from board. n When connecting FFC and TCPs to the module, recheck that they are perfectly connected. n To prevent electrical shock, be careful not to touch leads during circuit operations. n To prevent the Logic circuit from being damaged due to wrong working, do not connect/disconnect signal cables during circuit operations. n Do thoroughly adjustment of a voltage label and voltage-insulation. n Before reinstalling the chassis and the chassis assembly, be sure to use all protective stuffs including a nonmetal controlling handle and the covering of partitioning type. n Caution for design change : Do not install any additional devices to the module, and do not change the electrical circuit design. n If any parts of wire is overheats of damaged, replace it with a new specified one immediately, and identify the cause of the problem and remove the possible dangerous factors. n Examine carefully the cable status if it is twisted or damaged or displaced. Do not change the space between parts and circuit board. Check the cord of AC power preparing damage. n Product Safety Mark : Some of electric or implement material have special characteristics invisible that was related on safety. In case of the parts are changed with new one, even though the Voltage and

Watt is higher than before, the Safety and

Protection function will be lost. n The AC power always should be turned off, before next repair.. n Check assembly condition of screw, parts and wire arrangement after repairing.

Check whether the material around the parts get damaged.

n For example: Do not insert a subsidiary audio or video connector. If you insert It, It cause danger on safety. And, If you change the design or insert, Manufactor guarantee will be not effect. .

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( Precaution when repairing ESD ) n There is ESD which is easily damaged by electrostatics.(for example Integrated circuit,

FET ) Electrostatic damage rate of product will be reduced by the following technics n Before handling semiconductor parts/assembly, must remove positive electric by ground connection, or must wear the antistatic wrist-belt and ring. ( It must be operated after removing dust on it – It comes under precaution of electric shock.) n Must use anti-static solder removal device.

Most removal device do not have antistatic which can charge a enough positive electric enough damaging ESD. n Before removeing the protective material from the lead of a new ESD, bring the protective material into contact with the chassis or assembly that the ESD is to be installed on. n After removing ESD assembly, put on it with aluminum stuff on the conductive surface to prevent charging. n When handing an unpacked ESD for replacement, do not move around too much.

Moving (legs on the carpet, for example) generates enough electrostatic to damage the ESD. n Do not use chemical stuff using Freon. It generates positive electric that can damage

ESD. n Must use a soldering device for ground-tip when soldering or de-soldering ESD. n Do not take a new ESD from the protective case until the ESD is ready to be installed.

Most ESD have a lead, which is easily short-circuited by conductive materials

(such as conductive foam and aluminum)

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3.NAME & FUNCTION

3-1 Layout of Assemblies

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1. L-Main 7. F-Buffer

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2. X-Main 3. Y-Main

4, Y-Buffer (upper) 5. Y-Buffer (lower)

6. E-Buffer

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8. G-Buffer


9. Logic + Y-Main 10. Logic + X-Main

11. 12. 13. Logic + Logic Buf’(E,F,G)

3-2 BLOCK DIAGRAM

3-2-1 BLOCK DIAGRAM FOR DRIVE CIRCUIT OPERATION

14. 15. Logic Buffer 間

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F e t G a te D r iv e r )

R e c o v e ry

S w it c h in g

5 V

1 7 V

1 6 5 V

M a i n

S w it c h in g

P o w e r S u p p ly In p u t

( 5 Vd , 1 7 Vc c , 7 5 V s c , 1 6 5 V s , 2 2 0 V s e t)

V s e t

2 2 0 V

S w it c h in g

7 5 V

V s c a n

S w it c h in g

R e c o v e ry c i rc u it

(R e c o v e ry C a p )

< DRIVE Y Board >

L o g ic 신 호 입 력 부

P o w e r s u p p ly in p u t

( 5 V d , 1 7 V c c , 1 9 5 V e , 1 6 5 V s )

L o g ic 신 호 B u f f e r )

F e t G a t e D r iv e r )

5 V

1 7 V

1 6 5 V 1 9 5 V

R e c o v e r y

S w it c h in g

M a i n

S w it c h in g

V e

S w it c h in g

R e c o v e r y c i r c u it

( R e c o v e r y C a p )

< DRIVE X Board >

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Panel

Ysc_h

Ysc_l

Ysc

R5118

Vsc_h

Vset

Vs

R5124

1k

Yfr

RAMP

Ypn

RAMP

Yset

Ypp

Ys

RAMP

Yer Yg

GND

Yr

YDCL

1 2

GND bead

YDr bead

Vs

2

YDCH

1

YDf

Yf

R5117

Vsc

Vset

10us

Vs

GND

Vsc_h

Vfr=Vsc_l+12V

30us

Vsc_l

< Drive waveforms >

3-2-2 Block Diagram for Logic circuit

Vs

30us

GND

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3-3 Main function of Each Assembly

■ X-main board : The X-main board generate a drive signal by switching the FET in synchronization with logic main board timing and supplies the X electrode of the panel with the drive signal through the connector.

1) Maintain voltage waveforms (including ERC)

2) Generate X rising ramp signal

3) Maintain Ve bias between Scan intervals

■.Y-main board : The Y-main board generate a drive signal by switching the FET in synchronization with the logic

Main Board timing and sequentially supplies the Y electrode of the panel with the drive signal

through the scan driver IC on the Y-buffer board. This board connected to the panel’s

Y terminal has the following main functions.

1) Maintain voltage waveforms (including ERC)

2) Generate Y-rising Falling Ramp

3) Maintain V scan bias

■ Logic main board : The logic main board generates and outputs the address drive output signal and the X ,Y

drive signal by processing the video signals. This Board buffers the address dirve output

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signal and feeds it to the address drive IC (COF module)

(video signal- X Y drive signal generation , frame memory circuit / address data rearrangement)

■.Logic buffer(E,F) : The logic buffer transmits data signal and control signal.

■.Y-buffer board (Upper, Lower) : The Y-buffer board consisting of the upper and lower boards supplies the

Y-terminal with scan waveforms. The board comprises 8 scan driver IC’s

(ST microelectronics STV 7617 : 64 or 65 output pins) , but 4 ICs for the SD class

■.AC Noise Filter : The AC Noise filter has function for removing noise(low Frequency) and blocking surge.

It effects Safety standards(EMC,EMI)

■.TCP( Tape Carrier Package ) : The TCP applies Va pulse to the address electrode and constitutes address discharge by the potential difference between the Va pulse and the pulse applied to the Y electrode. The TCP comprise 4 data driver Ics(STV7610A

:96 pins output pins) 7 TCPs are required for signal scan .

3-4 PRODUCT/ SERIAL LABEL LOCATION

Voltage label

Serial No.

Panel module label

4. OPERATION CHECKING AFTER RECTIFICATION

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4-1 Flow chart

* A/S Check Point *

1.Checking the voltage for each assembly

2. Judging the Logic board working or not

3. Adjusting the output signal through test points

4. Checking the panel’s crack

4-1-1 No voltage output

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4-1-2 NO display (operating Voltage but an image doesn’t exist on Screen)

⇒ No Display is related with Y-MAIN, X-MAIN, Logic Main and so on.

This page shows you how to check the boards, and the following pages show you how to find the defective board.

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4-1-3 Abnormal Display (Abnormal Image is on Screen. (except abnormality in Sustain or Address)

⇒ Abnormal Display is related with Y-MAIN, X-MAIN, Logic Main and so on.


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4-1-4 Sustain Open (some horizontal lines don’t exist on screen)

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4-1-5 Sustain Short ( some horizontal lines appear to be linked on Video )

4-1-6 Address Open ( some vertical lines don’t exist on screen )

⇒ Address Open is related with Logic Main, Logic Buffer, FFC, TCP and so on.


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4-1-7 Address Short (some vertical lines appear to be linked on screen

⇒ Address Short is related with Logic Main, Logic Buffer, FFC, TCP and so on.


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4-2 DEFECTS, SYMPTONS AND DETECTIVE PARTS

Condition Name Description

■ No Voltage Output

■ No Display

■ Abnormal Display

■ Sustain Open

Operating Voltages don't exist.

Related Board

PSU

Operating Voltages exist, but an Image doesn't exist on screen

Y-MAIN, X-MAIN, Logic Main, Cables

Abnormal Image(not open or short) is on screen. some horizontal lines don't exist on screen

Y-MAIN, X-MAIN, Logic Main

Scan Buffer, FPC of X / Y

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■ Sustain Short

■ Address Open

■ Address Short some horizontal lines appear to be linked on screen

Scan Buffer, FPC of X / Y some vertical lines don't exist on screen Logic Main, Logic Buffer, FFC,TCP some vertical lines appear to be linked on screen

Logic Main, Logic Buffer ,FFC,TCP

◈ Defect: Address(vertical stripe) Open ◈ Defect: Address(vertical stripe) Short

Symptom : A line or block does not light up in address electrode direction.(1 line ,block open)

■ Symptom: Another color simultaneously appears because adjacent

data recognizes the single pattern signal

■Cause

① manufacturing : Panel electrode single line/ foreign material./electrostatic/

TCP defect

■Cause

① manufacturing : Panel electrode short / Foreign material

conductive foreign object inside TCP

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② Parts : TCP, Board connection defect

③ Operation : Assembly error / Film damage

② Part : TCP/buffer defect lighting electrode cutting

defect

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◈ Defect: Address output error

■ Symptom.: A defect other than address open and short Data printout signal error occurring at certain Gradation or pattern

◈ Defect: Sustain(horizontal stripe) Open

■ Symptom : One or more line do not light up in Sustain direction

■Cause : ① manufacturing : .Panel bus electrode single line

FPC pressure defect

② Parts : FPC/board/connection disconnection

③ operation : assembly error.

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◈ Defect: Sustain(horizontal stripe) Short

■Symptom : Combined or adjacent lines are short in

sustain direction. The line appear brighter

than other at Ramp gradation pattern or low

gradation patter

◈ Defect: Dielectric material layer damage

■ Symptom: Burn caused by the damage of address bus dielectric

layer appears in the panel discharge/non discharge

area. sustain also open/short occurs by the damage

of address sustain printout

<Add Block and Line Open>

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■Cause

① manufacturing : Panel electrode short/Foreign

material.

② Parts : Board/ connector/pin error

③ Operation : connector / assembling error

<Add and Sustain Open>

■Cause : layer uneven / abnormal voltage / foreign material

repair failed

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◈ Defext: F/White low discharge

■Symptom : Low discharge caused by unstable cells

occurring at full white pattern if high

(60 degree) or normal temparature.

◈ Defect: Weak discharge

■Symptom : Normal discharge but cells appear darker due to

weak light emission occurring mainly at low

(5 degree) Full white/Red/Green/Blue pattern or gradation pattern

■ Cause

① Panel : MgO source / dielectric thickness

cell pitch/phosphor

② Circuit : drive waveform/ voltage condition

■ Cause

① Panel : MgO deposition count and thinckness /

aging condition

② Circuit : drive waveform/ voltage condition

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◈ Defect : panel damage

■ Symptom : Panel crack or break. No image appears in some cause depending on the damaged parts and damage level.

◈ Defect: Exhaust pipe damage

■ Symptom. : Crack in break if exhaust pipe

an image is partially lacking or the panel

noise occurs depending on the damaged parts

and with the passage of time

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■ Cause : Careless panel handling

■ Cause

① Manufacturing : Flatness/palette pin interruption

② Operation : overload of panel corner / careless handling

③ Panel : Flatness / assembly error

5. Disassembling / Assembling

5-1 Tools and measurement equipment

5-1-1. Tools

1) (+) type Screw Drivers : to screw the screws

2) Air Blower

3) Earth Ring

4) Small Driver : to adjust potentiometer

5) Dummy Discharge Resistor : 2.4kOhm/10W

5-1-2. Measuring Equipment

1) Oscilloscope : 500MHz sampling

2) Probe : 10:1

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3) Digital Multi-meter

4) Signal Generator

5-2 Exploded View

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5-3 Disassembling & Re-assembling

5-3-1 Disassembling & Re-assembling of FPC (Flexible Printed Circuit) and Y-Buffer(Upper and Lower)

1. Removal procedures

1) Full out the FPC from Connector by holding the lead of the FPC with hands.

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2. Assembling Procedures

1) Push the lead of FPC with same strength until to be connected completely.

* Notice : Be careful do not get a damage on the connector pin during connecting by mistake.

5-3-2 Assembling & Disassembling of Flat Cable Connector of X-Main Board

1. Disassembling Procedure

1) Pull out the clamp of connector.

2. Assembling Procedure

2) Pull Flat cable out press down lightly.

3) Turn the Flat cable reversely .

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1) Put the Flat cable into the connector press down lightly until locking sound (“Dack”) comes out.

5-3-3 Assembling & Disassembling the FFC and TCP from Connector

1. Disassembling of TCP

1) Open the clamp carefully.

2. Assembling of TCP

2) Pull the TCP out from Connector.

1) Put the TCP into the Connector carefully 2) Close the clamp completely.

( The sound (“ Dack”) comes out. )

* Notice : TCP and Connector was connected surely.

* Notice :

1) Checking whether the foreign material is on the Connector inside before assembling of TCP.

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2) Be careful do not get a damage on the board by ESD during handling of TCP.

3. Misassembling of TCP

1) The misassembling of TCP is the cause of defect.

4. Checking method of misassembling of TCP

1) Disconnecting H3 from

CN8006 of LBE.

5. Assembling & Disassembling of FFC

2) Whether H8 and H9 are connected.

3) Checking the resistance between Pin 1 and 5.

Resistance > a few [ K Ohm] : OK

Resistance < 20 Ohm : At least ,more than 1pc of

TCP is wrong.

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( This is the photo of the assembling of FFC )

The procedure of assembling and disassembling of FFC is the same as TCP.

5-3-4 Exchange of LBE, LBF, LBG board

( Photo 1 )

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( Photo 2 )

1) Remove the screws in order of 2-3-5-7-1-4 from heat sink and then get rid of heat sink. ( Photo 1 )

2) Remove the TPC, FFC and power cable from the connectors.

3) Remove all of the screws from defected board.

4) Remove the defected board.

5) Replace the new board and then screw tightly.

6) Get rid of the foreign material from the connector.

7) Connect the TCP,FFC and power cable to the connector.

8) Reassemble the TCP heat sink.

9) Screw in order of 4-1-7-6-5-3-2. ( Photo 2 )

If you screw too tightly, it is possible to get damage on the Driver IC of TCP.

* Logic

5-3-5 Exchange YBU, YBL and YM board

1) Separate all of the FPC connector of YBU (Y-Buffer upper) and YBL (Lower). ( Photo 1 )

2) Separate all of the connector of CN5001 and CN5008 from Y-Main.

3) Loosen all of the screws of YBU, YBL and YM.

4) Remove the board from chassis.

5) Remove the connector of CN5006 and CN5007 among YBU, YBL and YM.

6) Remove the YBL and YBU from Y-main.

7) Replace the defected board.

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8) Reassemble the YBU and YBL to the Y-Main.

9) Connect the connector of CN5006 and CN5007 among YBU, YBL and YM.

10) Arrange the board on the chassis and then screw to fix.

11) Connect the FPC and YM of panel to the connector.

12) Supply the electric power to the module and then check the waveform of board.

13) Turn off the power after the waveform is adjusted.

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6. Operation Check after Repair Service

6-1 Check Item

Modul e assembl e check

Check I t em

TCP Assembl i ng condi t i on

Dr i ve boar d

Y BUFFER

Logi c & Logi c

Buf f er

Har ness

Speci f i cat i on

Secur el y connect ed or t i ght ened

Secur el y connect ed

Mat er i al Mi xi ng No mat er i al mi xi ng

Remar ks

.

6-2 Check Procedure

1) Visual check as following a. Assembling condition of module. b. No problem on the connection of module. c. The grounding and easily short-circuited parts are not damaged.

2)Check the Dip Switch is located module inside.

3) Turn on the power to PDP module, and then check that LED lights up and the SET is working well.

4) Check the power voltage after turn on the power, and then check the Display condition by tapping slightly the

Y-FPC 2 or 3 times.

5) Check whether something wrong during Full White Pattern period.

6) If something wrong, each voltage should be set to the standard voltage by using Multi-Tester and adjusting tools.

7) Adjust the waveform, using Oscilloscope for the waveform adjusting point.

8) Check the discharge of front panel by changing the image for each pattern.

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9) Check the Low-discharge, Over-discharge and panel condition by adjusting the Pattern Generator Level.

7. Operation Check

7-1 Adjustment Specification, Checking Position etc.

V3.1 TCP Ramp Waveform Inclination Adjustment ( Y-Board )

Adjust VR5002 to set the time of Vset in 10㎲

Adjust VR5002 to set the time of

Vset in 10㎲

* Dip Switch Mode

Adjust VR5004 to set the voltage of

Vsch in 40V

Adjust VR5001 to set the 3SF Falling time in 30㎲

1 2 3 4 1 2 3

< Internal > <External>

4

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7-2 Adjusting procedure

1) Get Pattern to be Full White.

2) Adjust Vsch to 40V by using VR5004 ( Vsch should be connected to “+” unit of Multimeter).

Vsch is over 95V than Vsc_l.

3) Check the waveform using Oscilloscope.

① Triggering through V_TOGG of LOGIC Board.

② Connect the OUT 4 Test Point at the center of Y_buffer to other channel, and then check the first SF operating waveform of 1TV-Field.

③ Check the waveform as before by adjusting Horizontal Division.

Check the Reset waveform when the V_TOGG Level is changed.

④ Set the Vset to 10us by adjusting VR5002.

GND maintenance section should be checked after the Vertical Division is readjusted to '2V or 5V'.

⑤ Set the Falling maintenance time to 30us by adjusting R5003.

⑥ Change the waveform position of Oscilloscope to 3SF and then set the Falling maintenance time to 30us by adjusting the VR5001.

GND maintenance section should be checked after the Vertical Division is readjusted to '2V or 5V'.

※ Special Notice

When you adjust the inclination of waveform, do check and adjustment being based on the Reset waveform of 1 st Sub-field of 1 st Frame and then move to 3 rd Sub-field for adjusting.

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8.

SPARE PART LIST FOR THE PANEL

X53.116

X53.117

X53.118

X53.119

X53.120

X51.120

X51.120

Beko Part Code

X53.101

X53.102

X53.103

Part Definition

PCB ASSY X MAIN ASSY (LJ92-00943A)

PCB ASSY LOGIC-BUFFER(E) (LJ92-00811A)

PCB ASSY LOGIC-BUFFER(F) SDI 42V3 (LJ92-00812A)

X53.104

X53.105

PCB ASSY LOGIC-BUFFER(E) SDI 42V3 (LJ92-00813A)

PCB ASSY Y-BUFFER(UP) SDI 42V3 (LJ92-00796A)

X53.106

X53.107

X53.108

X53.109

X51.112

PCB ASSY Y-BUFFER(DOWN) SDI 42V3 (LJ92-00797A)

PCB ASSY LOGIC-BOARD SDI 42V3 (LJ92-00975E)

PCB ASSY SMPS(PSU)SDI 42V3(LJ44-00068A)

X51.113

X51.115

X53.116

X53.116

PCB ASSY Y-BOARD SDI 42V3 (LJ92-00944B)

FPC 58x61mm(H*V),86LINES,0.6PITCH,80P (LJ94-00002A)

FFC CABLE -FLAT LOGIC-XBOARD (3809-001396)

60V,105C,210MM,30P,0.5MM,UL20861

FFC CABLE -FLAT LOGIC-YBOARD (3809-001397)

60V,105C,105MM,40P,0.5MM,UL20861

FFC CABLE -FLAT 42V3 LOGIC-L-BUFFER (3809-001414)



CABLE SMPS-LOGIC 42V3 (LJ39-00143A)

CABLE SMPS-L.BUFFER(E) 42V3 (LJ39-00140A)

CABLE SMPS-XBOARD 42V3 (LJ39-00179A)

CABLE SMPS-YBOARD 42V3 (LJ39-00142A)

CABLE L.BUFFER-L.BUFFER (LJ39-00109A)

CABLE L.BUFFER-L.BUFFER (LJ39-00109A)

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Beko S3.1 42" PDP plasma display module Service manual

Assistant Bot

SERVICE MANUAL

107cm (42 Inch) Wide Plasma Display Module

MODEL : 42” S3.1 PDP

1.Overview

CONTENTS

2. Precaution

3. Name & Function

4. Operation checking after rectification

Disassembling / Assembling

6. Operation Check after Repair Service

7. Operation Check

8. Spare part list for the panel

1. Overview

MODEL : 42” S3.1 PDP (S42SD-YD05)

No Item

Specification

2. PRECAUTIONS

** To prevent the risks of unit damage, electrical shock and radiation, take the following safety, service, and ESD precautions.

3.NAME & FUNCTION

Vset

Vs

GND

Vsc_h

Vfr=Vsc_l+12V

Vsc_l

Vs

4. OPERATION CHECKING AFTER RECTIFICATION

5. Disassembling / Assembling

6. Operation Check after Repair Service

7. Operation Check

8.

SPARE PART LIST FOR THE PANEL

Key Features

Frequently Answers and Questions

What is the pixel pitch of the S3.1 42" PDP?

What is the screen size of the S3.1 42" PDP?

What are the dimensions of the S3.1 42" PDP?

What is the weight of the S3.1 42" PDP?

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