Samsung PS42C6HX Schematic

SGS0WHOHYLVLRQ IHDWXUHV

■■

DTV Ready PDP TV

■

Supreme Picture Quality Supreme Convenience Quality

■■

RF, HDMI, 2 Scart, PC (Analog), Component, Video, S-Video

■

Slim line design

■■

Energy Saving

VHUYLFH

Pdqxdo

PS-42C6H

SGS0WHOHYLVLRQ

Fkdvvlv = G:7D+SbHxurshb75KG,bDxgl# Prgho = SV75F9K[2[HF

Refer to the service manual in the GSPN (see the rear cover) for the more information.

This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law.

Printed in Korea

AA82-04680A

Area Web Site North America service.samsungportal.com Latin America latin.samsungportal.com CIS cis.samsungportal.com Europe europe.samsungportal.com China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com

GSPN (Global Service Partner Network)

Table of Contents

Chapter 1 Precaution

■ 1-1 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

■ 1-2 Servicing Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

■ 1-3 Static Electricity Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

■ 1-4 Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Chapter 2 Product Specification

■ 2-1 Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

■ 2-2 Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

■ 2-3 Specifications Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

■ 2-4 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

Chapter 3 Alignment & Adjustment

■ 3-1 Service Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

■ 3-2 How to Access Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

■ 3-3 Factory Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

■ 3-4 Service Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

■ 3-5 Software Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11

■ 3-6 Replacements & Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Chapter 4 Exploded View & Part List

■ 4-1 PS42C6HX/XEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Chapter 5 Electrical Part List

■ 5-1 PS42C6HX/XEC Service Item . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Chapter 6 Troubleshooting

■ 6-1 First Checklist for Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

■ 6-2 Checkpoints by Error Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

■ 6-3 Troubleshooting Procedures by ASS'Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Chapter 7 Block Diagram

■ 7-1 Overall Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

■ 7-2 Partial Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Chapter 8 Wiring Diagram

■ 8-1 Overall Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1

■ 8-2 Partial Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2

Chapter 9 PCB Diagram

■ 9-1 Main Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1

■ 9-2 Power & IR Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

■ 9-3 Function Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-4

■ 9-4 Main SMPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5

■ 9-5 DC-DC SMPS Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6

■ 9-6 PDP Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-7

Chapter 10 Schematic Diagram

■ 10-1 Analog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1

Chapter 11 Operation Instruction & Installation

■ 11-1 Product Features and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1

■ 11-2 Installation Notes and Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-4

Chapter 12 Disassembly & Reassembly

■ 12-1 Overhaul Disassembly & Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1

Chapter 13 Circuit Description

■ 13-1 Power ON/OFF Signal Timing Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1

■ 13-2 Partial Block Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-2

Chapter 14 Reference Information

■ 14-1 Other issues related to other products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1

■ 14-2 Technical Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-3

Alignment & Adjustment

Samsung Electronics 3-1

3. Alignment & Adjustment

3-1 Service Instruction

■ Before Performing After Sales Services

1. Check if the measurement and test equipment is working properly.

2. Secure sufficient work space for disassembling the product.

3. Prepare a soft pad for disassembling the product.

Alignment & Adjustment

3-2 Samsung Electronics

3-2 How to Access Service Mode

1. General Remote To Enter : Power Off → INFO → MENU → MUTE → Power On

(Interval between key strokes : less than 3 sec)

To Exit : Power Off → ON

2. Factory Remote To Enter : Power On → INFO → FACTORY Key (Interval between key strokes : less than 3 sec) To Exit : Power Off → On

Press the Factory key twice with a key stroke interval of more than 1 second (Pressing once enters Aging Mode)

3. Settings when entering Factory mode

- Sharp Screen (Dynamic), Color Tone (Cool1), Factory (Dynamic CE Off)

4. Adjustment Procedures

- Channel ▲▼Key : Select an item.

- Volume ◀▶ Key : Adjust the value up or down.

- MENU Key : Save the changes to the EEPROM and return to the higher-level mode.

- Using the Numeric (0~9) keys, you can select a channel.

- Using the SOURCE key, you can switch AV modes.

5. Initial SERVICE MODE DISPLAY State

※ The version of the firmware displayed at the bottom of the screen may differ and the firmware is subject to change for the

improvement of product functions.

※ If you have adjusted the settings in Service Mode, you have to reset the product.

1. Calibration

2. Option Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. -----

10. W/B MOVIE

11. Checksum

12. Reset

13. ----T-AUD42PEUH-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.

Alignment & Adjustment

Samsung Electronics 3-3

1. Calibration : W/B Calibration AV Calibration

DTV Calibration PC Calibration HDMI Calibration

2. Option Table : Setting option Blue Eye : OFF

Gamma : OFF Logic D/L : OFF Auto Power : ON Dynamic CE : OFF EnergySave : OFF LBE/FBE : ON FRC-Micronas : OFF FRC-Samsung : OFF LNA : OFF Carrier Mute : ON Language : English Auto FM : ON High Deviation : OFF TTX : ON TTX List : Flof Dynamic AslGain: OFF Tuner TOP : 8 TTX Group : Auto TTX Level : L1.5 PS Test : MIN LED OnTime : 10 LED OffTime : 0 Debug : Smart Ch. Table : SUWON iDTV Country : UK ACR : OFF

3. White Balance : Adjustment White Balance

( Range 0~255 )

Sub Bright : 128 R off set : 128 G off set : 128 B off set : 128 Sub contrast : 128 R gain : 128 G gain : 128 B gain : 128

1. Calibration

2. Option T

able XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. -----

10. W/B MOVIE

11. Checksum

12. Reset

13. ----T-AUD42PEUH-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.

3-3 Factory Data

★ The underlined are items applied during the service adjustment. None of the others should be adjusted.

Alignment & Adjustment

3-4 Samsung Electronics

SVP-PX

SVP-PX Correct Register ComB Filter : Y-Filter - 80H Sharpness : RF/AV COMP PC HDMI

H2Gain 0DH 10H 10H 08H

H4Gain 04H 04H 04H 00H

V2Gain 0CH 10H 10H 08H

V4Gain 04H 04H 04H 04H

Sr2Gain 00H 00H 00H 00H

Sr4Gain 00H 00H 00H 00H

SI2Gain 00H 00H 00H 00H

SI4Gain 00H 00H 00H 00H

Peakth1 00H 00H 00H 00H

Peakth2 80H 80H 80H 80H

Peakth3 00H 00H 00H 00H NR : YNROFF 80H

CNROFF 80H

YNRON 80H

CNRON 80H RGB Calibration : RF/AV COMP PC HDMI

R-Offset 4EH 4BH 48H 3BH

G-Offset 4EH 4BH 48H 3BH

B-Offset 4EH 4BH 48H 3BH

R-Gain 7CH 7BH 80H 9DH

G-Gain 7CH 7BH 80H 9DH

B-Gain 7CH 7BH 80H 9DH ADC Calibration : RF/AV COMP PC HDMI

TCD3 Contrast 84H 78H 78H 78H

TCD3 Brightness 23H 20H 20H 20H

TCD3 CR 80H 80H 80H 80H

TCD3 CB 80H 80H 80H 80H

TCD3 Delay 00H 00H 00H 00H

Analog Y Offset 40H 40H 42H 40H

Analog PB Offset 80H 80H 39H 80H

Analog PR Offset 80H 80H 39H 80H

Analog Y Gain D6H CBH CFH D6H

Analog PB Gain FEH 9AH 80H FEH

Analog PR Gain FEH 9AH 80H FEH

Black Level 00H 00H 00H 00H

SVP Brightness 00H 00H 00H 00H Calibration Target : low high delta

AV ADC 10H F8H 04H

COMPADC 10H F8H 04H

PC ADC 04H F8H 04H

ALL RGB 04H F8H 10H

1. Calibration

2. Option

Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. -----

10. W/B MOVIE

11. Checksum

12. Reset

13. ----T-AUD42PEUH-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.

Alignment & Adjustment

Samsung Electronics 3-5

5. Option Block FRC-Micronas

FRC-Samsung LBE/FBE : Test Pattern 00H

Black Stretch Tilt 50H Black Stretch Gain 55H Black Stretch Ratio 33H Skin En 01H Skin Gain 80H Skin T X 70H Skin T Y 64H White En 00H MCM Gain 80H White T X 4FH White T Y 54H CHY Gain1 3EH CHY Gain2 42H CHC Gain1 40H CHC Gain2 40H CHM Gain1 3DH CHM Gain2 45H ColorGain TY 00H ColorGain TC 00H ColorGain TM 00H Color Gain 80H Input RGB Gain 80H Input RGB Offset 00H

6. STV8257/STA323W : Sound IC Correct Register Ch1 Volume : 55H

Ch2 Volume : 55H AGC Gain : 07H AM Prescale : 00H ZWT TH : 0AH AV Delay : 55H Comp Delay : 32H HDMI Delay : 32H PC Delay : 32H L1 Att/Rel Th : EFH

1. Calibration

2. Option

Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. -----

10. W/B MOVIE

11. Checksum

12. Reset

13. ----T-AUD42PEUH-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.

Alignment & Adjustment

3-6 Samsung Electronics

1. Calibration

2. Option

Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. -----

10. W/B MOVIE

11. Checksum

12. Reset

13. ----T-AUD42PEUH-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.

7. YC Delay PALB/G : 99H

PAK D/K : 88H PALI : 88H SECAM B/G : 88H SECAM D/K : 77H SECAM L/L' : 66H NTSC 3.58 : 96H NTSC 4.43 : CCH AV PAL : A 9H AV SECAM : 66H AV NT3.58 : 98H AV NT4.43 : CCH AV PAL60 : 77H

8. Adjust V Mute Time : 10

Melody Volume : 9 Ana_Dimm_Max : FEH TTX Contrast : 50 TTX Brightness : 50 TTX Color : 50 Dynamic Contrast : 100 Dynamic Sharpness : 60 Standard Contrast : 90 Standard Brightness : 80 Standard Color : 70 Standard Sharpness : 70 Movie Contrast : 60 Movie Brightness : 50 Movie Color : 50 Movie Sharpness : 40

LNAPLUS : RFDB-1 Level 2

RFDB-2 Level 5 RFDB-3 Level 9 RFDB-4 Level 24

Hotel Option : Hotel Mode OFF

PWR On CH 1 PWR On Vol. 10 Max Volume 100 L.Key Lock OFF PWR On Src RF

9. -----

Alignment & Adjustment

Samsung Electronics 3-7

1. Calibration

2. Option

Table XXXX XXXX

3. White Balance

4. SVP-FX

5. Option Block

6. STV8257/STA323W

7. YC Delay

8. Adjust

9. -----

10. W/B MOVIE

11. Checksum

12. Reset

13. ----T-AUD42PEUH-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.

10. W/B MOVIE RF/AV COMP PC HDMI

WB Movie OFF OFF OFF OFF Color Mode Movie Movie Movie Movie Color Tone Warm2 Warm2 Warm2 Warm2 W1 R Gain 130 129 130 134 W1 B Gain 117 118 119 120 W1 R Offset 138 137 138 138 W1 B Offset 119 114 115 122 W2 R Gain 132 133 134 136 W2 B Gain 115 114 115 116 W2 R Offset 141 140 141 141 W2 B Offset 115 112 113 116 Movie Contrast 70 70 70 70 Movie Brightness 50 50 50 50 Movie Color 45 45 45 45 Movie Sharpness 25 25 25 25

11. Checksum

12. Reset

13. -----

Alignment & Adjustment

3-8 Samsung Electronics

3-4 Service Adjustment

3-4-1 White Balance - Calibration

If picture color is wrong, do calibration first. Execute calibration in Factory Mode

1. Source : VIDEO

2. Setting Mode : PALVideo (MODE : #2)

3. Pattern : Pattern #24 (Chess Pattern)

4. Use Equipment : K-7256 or Equipment of equality level

5. Work order

1) Enter by Factory Mode select "1.CALIBRATION".

2) Select "AV CALIBRATION" again in CALIBRAION MENU.

3) After Completing Calibration, come out "Av success". OSD on the screen (bottom-side) for about 3 seconds.

Source AV : PALcomposite, Component : 1280*720/60Hz

PC : 1024*768/60Hz

( Chess Pattern )

Alignment & Adjustment

Samsung Electronics 3-9

3-4-2 White Balance - Adjustment

If picture color is wrong, check White Balance condition. Equipment : CA210, Patten : Toshiba

Adjust W/B in Factory Mode Sub brightness and R/G/B Offset controls low light region

Sub contrast and R/G/B Gain controls high light region Source AV : PAL composite, Component : 1280*720/60Hz,

HDMI[DVI] : 1280*720/60Hz

[ Test Pattern : MSPG-945 Series Pattern #16 ]

* Color temperature

1500K +/-500, -6 ~-20 MPCD

* Color coordinate

H/L : 270/280 +/- 2 L/L : 270/280 +/- 3, 2.1 Ft +/-0.05 Ft

( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD )

3-4-3 Conditions for Measurement

1. On the basis of toshiba ABLpattern : High Light level (57 IRE)

- INPUT SIGNALGENERATOR : MSPG-925LTH * Mode No 2 : 744X484@60 Hz

No 6 : 1280X720@60 Hz No 21 : 1024X768@60 Hz

* Pattern No 36 : 16 Color Pattern

No 16 : Toshiba ABLPattern

2. Optical measuring device : CA210 (FL) Please use the MSPG-925 LTH generator for model PS-42C6H.

Alignment & Adjustment

3-10 Samsung Electronics

3-4-4 Method of Adjustment

1. Adjust the white balance of AV, Component and DVI Modes.

(AV → Component) a) Set the input to the mode in which the adjustment will be made (RF → DTV → PC → DVI).

* Input signal - VIDEO Mode : Model #2 (744*484 Mode), Pattern #16

- DTV, DVI Mode : Model #6 (1280*720 Mode), Pattern #16

- HDMI Mode : Model #6 (1280*720 Mode), Pattern #16 b) Enter factory color control, confirm the data. c) Adjust the low light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust sub - Brightness to set the 'Y' value.

- Adjust red offset ('x') and blue offset ('y') to the color coordinates.

* Do not adjust green offset data.

d) Adjust the high light. (Refer to table 1, 2 in adjustment position by mode)

- Adjust red gain ('x') and blue gain ('y') to the color coordinates.

* Do not adjust the green gain and sub-contrast (Y) data.

( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD )

Low light Measurement point

Hight light Measurement point

Alignment & Adjustment

Samsung Electronics 3-11

3-5 Software Upgrade

3-5-1 How to Update Flash ROM

1. Installthe Flash Downloader Connect Set (Service Jack) and Jig Cable to execute Program Update.

2. Flash Downloader program update

- Before Turning on the set, Click "connect" which is under of OSD Screen.

- Turn on the Set.

Alignment & Adjustment

3-12 Samsung Electronics

3-6 Replacements & Calibration

* Check items listed after changing each

Replaced Items Code No. Check Items

ASSY PCB MISC-MAIN BN94-01364A

1) Auto Program

2) Let the user go through subscription process after contacting user's cable service provider.

ASSY PCB P-SMPS(MAIN) BN96-03743A Vs, Va voltage check and adjust ASSY PCB P-SMPS(DC DC) BN96-01856A Output voltage check and adjust ASSY PDP P-LOGIC BOARD BN96-04177A

Not adjustment

ASSY PDP P-X MAIN BOARD BN96-03350A ASSY PDP P-YMAIN BOARD BN96-03351A ASSY PDP P-YMAIN SCAN BOARD BN96-03352A ASSY PDP P-ADDRESS E BUFF BOARD BN96-03353A ASSY PDP P-ADDRESS F BUFF BOARD BN96-03354A

※ When replacing the SMPS or PDP panel, you have to check the voltage printed on the panel sticker and adjust it.

※ The ASS'Ycode can be changed, see "5. Electrical Part List."

Alignment & Adjustment

Samsung Electronics 3-13

3-6-1 Voltage Adjustment

1. SMPS Panel voltages must be adjusted after changing SMPS-PCB or PDP module. Value Board Adjustment

Vs 200

SMPS-MAIN

Va 65

Vset 195

SMPS-DC/DCVe 120

Vscan -190

2. Apoint of adjusting SMPS-MAIN voltage.

Voltage Label

SMPS-MAIN

SMPS-DC/DC

Vs Adjustment

Vs Test point

Va Adjustment

Va Test point

Alignment & Adjustment

3-14 Samsung Electronics

3. Apoint of adjusting SMPS-DC/DC.

Vset (Middle) Vscan (Right)

Test Point

Vscan/Vset Adjustment

Point

Adjustment

Point

Ve Test Point

* Use base chassis of PDP panel as GND point.

1. Make sure all protective devices are properly installed

including non-metallic handles and compartment covers when installing or re-installing the chassis or chassis assemblies.

2. Make sure that no gaps exist between the cabinets for

children to insert their fingers in to prevent children from receiving electric shocks. Gaps mentioned above include ventilation holes between the PDP module and the cabinet mask, and the improper installation of the rear cabinet.

Errors may occur when the resistance is below 1.0 ㏁ or over 5.2 ㏁.

In these cases, make sure that the device is repaired before sending it back to the customer.

3. Check for Electricity Leakage (Figure 1-1)

Warning: Do not use an insulated transformer for checking the leakage. Use only those current leakage testers or mirroring systems that comply with ANSIC 101.1 and the Underwriter Laboratory's specifications (UL1410,

59.7).

Fig. 1-1 AC Leakage Test

4. A high voltage is maintained within the specified limits

using safety parts, calibration and tolerances. When voltage exceeds the specified limits, check each special part.

5. Warning for Engineering Changes: Never make any changes or additions to the circuit design or the internal part for this product. Ex: Do not add any audio or video accessory connectors. This might cause physical damage. Furthermore, any changes or additions to the original design/engineering will invalidate the warranty.

6. Warning - Hot Chassis: Some TV chassis are directly connected to one end of the AC power cord for electrical reasons. Without insulated transformers, the product can only be repaired safely when the chassis is connected to the earth end of the AC power source.

To make sure the AC power cord is properly connected, follow the instructions below. Use the voltmeter to measure the voltage between the chassis and the earth ground. If the measurement is over 1.0V, unplug the AC power cord and change the polarity before reinserting it. Measure the voltage between the chassis and the ground again.

7. Some TV chassis are shipped with an additional secondary grounding system. The secondary system is adjacent to the AC power line. These two grounding systems are separated in the circuit using an unbreakable/unchangeable insulation material.

8. When any parts, material or wiring appear overheated or damaged, replace them with new immediately. When any damage or overheating is detected, correct this immediately and make a regular check of possible errors.

9. Check for the original shape of the lead, especially that of the antenna wiring, any sharp edges, the AC power and the high voltage power. Carefully check if the wiring is too tight, incorrectly placed or loose. Never change the space between the part and the printed circuit board. Check the AC power cord for possible damages. Keep the part or the lead away from any heat-emitting materials.

Precaution

Samsung Electronics 1-1

To avoid possible damage, electric shocks or exposure to radiation, follow the instructions below with regard to safety, installation, service and ESD.

1. Precaution

1-1 Safety Precautions

(READING SHOULD

DEVICE

UNDER

TEST

2-WIRE CORD

ALSO TEST WITH

PLUG REVERSED (USING AC ADAPTER PLUG AS REQUIRED)

TEST ALL

EXPOSED METAL

SURFACES

LEAKAGE CURRENT

TESTER

NOT BE ABOVE

0.5mA)

EARTH

GROUND

10. Safety Indication: Some electrical circuits or device related materials require special attention to their safety features, which cannot be viewed by the naked eye. If an original part is replaced with another irregular one, the safety or protective features will be lost even if the new one has a higher voltage or more watts.

Critical safety parts should be bracketed with ( ). Use only regular parts for replacements (in particular, flame resistance and dielectric strength specifications). Irregular parts or materials may cause electric shock or fire.

Precaution

1-2 Samsung Electronics

1. The service instructions are printed on the cabinet, and should be followed by any service personnel.

2. Make sure to unplug the AC power cord from the power source before starting any repairs. (a) Remove or re-install parts or assemblies. (b) Disconnect the electric plug or connector, if any. (c) Connect the test part in parallel with the electrolytic capacitor.

3. Some parts are placed at a higher position than the printed board. Insulated tubes or tapes are used for this purpose. The internal wiring is clamped using buckles to avoid contact with heat emitting parts. These parts are installed back to their original position.

4. After the repair, make sure to check if the screws, parts or cables are properly installed. Make sure no damage is caused to the repaired part and its surroundings.

5. Check for insulation between the blade of the AC plug and that of any conductive materials (i.e. the metal panel, input terminal, earphone jack, etc).

6. Insulation Check Process: Unplug the power cord from the AC source and turn the switch on. Connect the insulating resistance meter (500v) to the AC plug blade.

The insulating resistance between the blade of the AC plug and that of the conductive material should be more

than 1 ㏁.

7. Any B+ interlock should not be damaged. If the metal heat sink is not properly installed, no connection to the AC power should be made.

8. Make sure the grounding lead of the tester is connected to the chassis ground before connecting to the positive lead. The ground lead of the tester should be removed last.

9. Beware of risks of any current leakage coming into contact with the high-capacity capacitor.

10. The sharp edges of the metal material may cause physical damage, so protect yourself by wearing gloves during the repair.

11. Due to the nature of plasma display panels, partial afterimages may appear if a still picture is displayed on the screen for a long period of time. This is caused by brightness deterioration due to the storage effect of the panel, and to prevent this from happening, we recommend that the brightness and contrast are reduced. (e.g.) Contrast: 25, Brightness: 50

Precaution

Samsung Electronics 1-3

Warning 1: First carefully read the "Safety Instruction" in this service manual.

When there is a conflict between the service and the safety instructions, follow the safety instruction at all times.

Warning 2: Any electrolytic capacitor with the wrong polarity will explode.

1-2 Servicing Precautions

1-3 Static Electricity Precautions

1. Some semi-conductive ("solid state") devices are vulnerable to static electricity. These devices are known as ESD. ESD includes the integrated circuit and the field effect transistor. To avoid any materials damage from electrostatic shock, follow the instructions described below.

2. Remove any static electricity from your body by connecting the earth ground before handling any semi-conductive parts or assemblies. Alternatively, wear a dischargeable wrist-belt. (Make sure to remove any static electricity before connecting the power source - this is a safety instruction for avoiding electric shock)

3. Remove the ESD assembly and place it on a conductive surface such as aluminum foil to prevent accumulating static electricity.

4. Do not use any Freon-based chemicals. Such chemicals will generate static electricity that causes damage to the ESD.

5. Use only grounded-tip irons for soldering purposes.

6. Use only anti-static solder removal devices. Most solder removal devices do not support an anti-static feature. Asolder removal device without an anti-static feature can store enough static electricity to cause damage to the ESD.

7. Do not remove the ESD from the protective box until the replacement is ready. Most ESD replacements are covered with lead, which will cause a short to the entire unit due to the conductive foam, aluminum foil or other conductive materials.

8. Remove the protective material from the ESD replacement lead immediately after connecting it to the chassis or circuit assembly.

9. Take extreme caution in handling any uncovered ESD replacements. Actions such as brushing clothes or lifting your leg from the carpet floor can generate enough static electricity to damage the ESD.

Precaution

1-4 Samsung Electronics

CAUTION

These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.

Precaution

Samsung Electronics 1-5

1-4 Installation Precautions

1. For safety reasons, more than two people are required for carrying the product.

2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock.

3. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire.

4. Bend the external antenna cable when connecting it to the product. This is a measure to protect it from being exposed to moisture. Otherwise, it may cause a fire or electric shock.

5. Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric shock.

6. Keep the antenna far away from any high-voltage cables and install it firmly. Contact with the high-voltage cable or the antenna falling over may cause fire or electric shock.

7. When connecting the RF antenna, check for a DTV receiving system and install a separate DTV reception antenna for areas with no DTV signal.

8. When installing the product, leave enough space (4") between the product and the wall for ventilation purposes. Arise in temperature within the product may cause fire.

9. When moving a PDP with removable speakers, detach the speakers first before moving the main body. Moving the PDP main body without separating the speakers may cause the speakers to detach, possibly causing damage or injury.

1-6 Samsung Electronics

MEMO

Wiring Diagram

Samsung Electronics 8-1

8. Wiring Diagram

8-1 Overall Wiring

No Assy Code No. Description

ASSY PDPMODULE P BN96-04174A 42HD,W1,1024*768,complementary color,third line,with logic

①

ASSY PCB P-SMPS BN96-03743A PS42E7H,Free-Volt,245*370mm

②

ASSY PCB P-SMPS BN96-01856A SPD-50P5HD(DC_DC),200Vin(DC_DC)

③

ASSY PDPMODULE P-X MAIN BOARD BN96-03550A 42HD,PL42AX005A,V5.1,NTSC/PAL,1024*768,LJ92-01345A

④

ASSY PDPMODULE P-Y MAIN BOARD BN96-03351A 42HD,PL42AX005A,V5.1,NTSC/PAL,1024*768,LJ92-01346A

⑤

ASSY PDPMODULE P-Y MAIN SCAN BUFFER BN96-03352A 42HD,PL42AX005A,V5.1,NTSC/PAL,1024*768,LJ92-01344A

⑥

ASSY PDPMODULE P-LOGIC MAIN BOARD BN96-04177A 42HD,W1,1024*768,SEC/TTESC only,LJ92-01432A,third line

⑦

ASSY PDPMODULE P-ADDRESS E BUFFER BN96-03353A 42HD,PL42AX005A,V5.1,NTSC/PAL,1024*768,LJ92-01343A

⑧

ASSY PDPMODULE P-ADDRESS F BUFFER BN96-03354A 42HD,PL42AX005A,V5.1,NTSC/PAL,1024*768,LJ92-01342A

⑨

ASSY PCB MISC-MAIN BN94-01364A PS-42C6H,EU,D74A,BN41-00745C,NO SIDE

⑩

ASSY BOARD P-POWER&IR BN96-03320A CADILLAC,SJ05-01-516,POWER & IR,CORE, 250MM

⑪

ASSY SPEAKER P BN96-02785A 8ohm,Twister,42inch,10W

⑫

ASSY BOARD P-FUNCTION BN96-02784B CADILLAC,SJ06-01-006,FUNCTION,600MM, CORE

⑬

FILTER-EMI AC LINE 2901-001378 250V,6A,-,0.15uF/1000pF,50x22.5x37.2mm,BK,-

※ The ASS'Ycode can be changed, see "5. Electrical Part List."

CN5506

CN5505

CN5504

CN5503

CN5502

CN5501

Y-BUFFER

CN5509

Y-DRIVE

CN5508

CN5507

CN5010

CN5013

CN800

CN2083 CN2093

SMPS-MAIN

CN804-1

CN803

CN2026

CN2085

CN810

CN809

LOGIC BOARD

CN2084 CN2005

AC-INLET

E-BUFFER F-BUFFER

FUNCTION

CN1

CN2084 CN2711

CN2500

CN902 CN102 CN101

CN741

CN2700

MAIN BOARD

CN330

CN740

CN501

CN2710

CN001

POWER SW

SPEAKER

SMPS

-DC

CN2

CN3

CN4

CN5

CN4004

X-DRIVE

CN4003

CN4002

CN4001

Wiring Diagram

8-2 Samsung Electronics

8-2-1 PDP Module ↔↔SMPS Wiring

①

CN809(Main SMPS)

↔

CN3(DC-DC SMPS)

Pin No. Signal

1 D5.3V 2 Vg 3 RTN 4 RTN 5 RTN 6 RTN 7 RTN 8 Va

9 Va 10 N/C 11 Vs 12 Vs

②

CN2(DC-DC SMPS)

↔

CN5007(Y B'D)

Pin No. Signal

1 Vs 2 Vs 3 RTN 4 RTN 5 Vset 6 RTN 7 Vscan 8 RTN 9 Vg

10 D5.3V

③

CN4(DC-DC SMPS)

↔

CN4001(X B'D)

Pin No. Signal

1 D5.3V 2 Vg 3 RTN 4 RTN 5 Ve 6 RTN 7 RTN 8 Vs 9 Vs

④

CN6(DC-DC SMPS)

↔

CN2509(E-Buffer)

Pin No. Signal

1 RTN 2 N.C 3 D5.3V 4 N/C 5 Va

⑤

CN810(Main SMPS)

↔

CN2013(Logic B'D)

Pin No. Signal

1 STD_5V 2 VS_ON 3 N/C 4 PS_ON 5 RTN 6 D5.3V 7 RTN 8 RTN 9 D5.3V

10 D5.3V

8-2 Partial Wiring

Wiring Diagram

Samsung Electronics 8-3

8-2-2 Connect Cables

Use SMPS 12P LVDS 31P POWER 10P

Code BN39-00632B BN39-00667D BN39-00675A

Photo

Use POWER 12P GROUND WIRE

Code BN39-00676A BN39-00164A

Photo

※ The code number of cable(Lead-connector) can be changed, see "5. Electrical Part List."

8-4 Samsung Electronics

MEMO

Product Specification

Samsung Electronics 2-1

2. Product Specification

2-1 Product Features

■ Chip Description

- SVP-PX (IC611) : SVPTMPX contains dual-purposed triple 10-bit high-precision and high speed video ADCs for both PC and video inputs, the high speed HDMI could support all HDMI inputs up to 135MHz with HDCP format, the highperformance multi-format 3D digital comb video decoder that supports NTSC, PAL, and SECAM*, a HDTV sync separator, motion adaptive de-interlacing engine, and the video format conversion engine, supporting multi-window display in many different output modes.

- STV8257DSX (IC503) : Digital Audio Decoder/Processor

- STA323W (IC505) : Audio power amplifiers

Block Specfication Major IC Remark

RF Tuner TCLW3001PD32S(H) SEMCO

Power Input Voltage : AC 220 - 240 V~, 50 Hz

Video

Scaler

SVP-PX TRIDENT

Video Decoder

Sound

Sound Processor STV8257DSX ST Microelectronics

Sound AMP STA323W ST Microelectronics

Audio S/W MM74HC4052

PDP Module Samsung SDI V5.1 42"HD SAMSUNG SDI

Remocon TM87B

Cabinet C6

Product Specification

2-2 Samsung Electronics

2-2 Key Features

Model PS-42C6H

Screen Size 107 Cm / 42 Inches (16:9)

Dimensions 1055(W) x 340(D) x 758.5(H) mm

Weight 33.2 Kg Voltage

EU : AC 220-240V~, 50Hz

CIS : AC 100-240V~, 50/60Hz

Colour System PAL, SECAM, NT3.58, NT4.43

Sound System BG, DK, I, L

Number of Pixels 1024(H) X 768(V)

ANTENNAinput VHF, UHF (75Ωunbalanced)

VIDEO input

SCART1, SCART2

COMPONENT IN (480i/P, 576i/P, 720P, 1080i)

PC IN (MINI D-SUB 15P)

HDMI/DVI IN

AUDIO input

SCART1, SCART2

Component

DVI

Audio Output AUDIO OUT

Speaker Output 10W + 10W ( 8Ω)

+ 86 hidden pages