PDP-TELEVISION

Chassis : D74A(P_Europe_42SD)_Audi Model : PS42E7SX/XEC

SERVICE

Manual
FEATURES DTV Ready PDP TV Supreme Picture Quality Supreme Convenience Quality RF, HDMI, PC(Analog), 2 Component, 2 Video, S-Video Slim line design Energy Saving

PS-42E7S

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.
Samsung Electronics Co., Ltd. Apr. 2006
Printed in Korea AA82-03734A

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 PS42E7SX/XEC. 4-1

Chapter 5 Electrical Part List
5-1 PS42E7SX/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 Side AV Board. 9-4 9-5 Main SMPS Board. 9-5 9-6 DC-DC SMPS Board. 9-6 9-7 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

Block Diagram

7. Block Diagram
7-1 Overall Block Diagram

LOGIC CONTROL

R-Data 8,10,12 or 13Bits G-Data 8,10.12 or 13Bits B-Data 8,10,12 or 13Bits

Display Data

DRIVER CIRCUIT & PANEL

Row Driver

Input Data Processor

Data Controller

DCLK HSYNC HSYNC DEN LVDS Interface

Driver Timing

852 x 480 Pixels 852 x 3 x 480 Cells

X Pulse Generator

Driver Timing Controller

Y Pulse Generator

- 3V3 - Vcc - Va - Vs - Vsc - Ve - Vset

Scan Timing

Column Driver
Vcc 3V3 Va Vs Vset Vsc Ve Reference : Voltage for Logic Control : Voltage for FET driver : Voltage for address pulse : Voltage for sustain pulse : Voltage for scan pulse : Voltage for X ramp pulse : Voltage for Y ramp pulse

Image Scaler + Video Decoder Micom

Samsung Electronics

CN804-1(Main SMPS) CN102(Main Board) Pin No. Signal 5.3V RTN N/C N/C RTN RTN 12V PS_ON RTN STBY FAN_ON FAN_D
CN803(Main SMPS) CN101(Main Board) Pin No. Signal 6.5V RTN 12V RTN 18Vamp 18Vamp RTN_amp RTN_amp Vt RTN
CN810(Main SMPS) CN2013(Logic Board) Pin No. Signal STBY VS_ON N/C PS_ON RTN 5.3V RTN RTN 5.3V 5.3V
CN2(DC-DC SMPS) CN5007(Y B'D) Pin No. Signal Vs Vs RTN RTN Vset RTN Vscan RTN Vg D5.3V
CN4(DC-DC SMPS) CN4001(X B'D) Pin No. 9 Signal D5.3V Vg RTN RTN Ve RTN RTN Vs Vs
CN6(DC-DC SMPS) CN2509(E-Buffer) Pin No. 5 Signal RTN N.C D5.3V N/C Va
7-2 Partial Block Diagram
7-2-1 Audio/Video Signal Block Diagram
RF Tu n er DDR (16MB ) K 4D263238D

A N A Tu n er

Vi d eo 1/2
Ren es as M30620 Flash Memory 144Pin 16K RAM

SVP PX

(256-FPGA) Si d e S.Vi d eo Co m p o n en t 1/2 3D Comb Multi Decoder De-interlacer Scaler LVDS Out WXGA Output DNIe (Demo) Caption/TTX2.5 HDMI 10b it p ro c ess EEPROM L VDS Tx 12b i t

LBE ( SD)

PC HDMI

H.P Ser v i c e

Au d i o SW HC4052
Au d i o Pr o c es s STV8257 Lip Sync(120ms)
H.P Am p TDA7050 Au d i o A m p STA313W 10W

UA RT MA X3223

7-2-2 DC-DC SMPS Block Diagram

Vs Input Part

Transformer Rectification Block

Vscan Output

Control and Switching Block
Auxiliary Power Feedback Block

Transformer

Rectification Block

Vset Output

Ve Output
7-2-3 Module Driver Board Block Diagram

1. Y Drive Board

2. X Drive Board
7-2-4 Logic Board Block Diagram

30 Pin Connector

Y-MAIN CONTROL SIGNAL TX, RX SCL, SDA

31 Pin LVDS

LVDS SIGNAL (8~12bit)

10 Pin (Power)

RELAY_EINT Vs-ON

20 Pin Connector

X-MAIN CONTROL SIGNAL

CN804-1(Main SMPS) CN102(Main Board) Pin No. Signal 5.3V RTN N/C N/C RTN RTN 12V PS_ON RTN STBY FAN_ON FAN_D
CN803(Main SMPS) CN108(Main Board) Pin No. Signal 6.5V RTN 12V RTN 18Vamp 18Vamp RTN_amp RTN_amp Vt RTN
CN740(Main Board) CN001(Power Button) Pin No. IR_7414 Signal GND LED ST5V GND KEY_INPUT2
CN501(Main Board) Speaker Out Pin No. Signal SPK_R+ SPK_RSPK_L+ SPK_L-
CN741(Main Board) CN1(Function Board) Pin No. 3 Signal KEY_INPUT1 KEY_INPUT2 GND

9-2 Power & IR Board

No Loc. No. RM1 SW1 Power Button The Illumination sensor that senses the quantity of light. It senses the illumination and automatically adjusts the screen brightness according to the surrounding brightness when the Power Saving Mode of the User menu is set to Auto. Description Remote Control Sensor

9-3 Function Board

Function Key. Located on the side of the unit.

9-4 Side AV Board

No Loc. No. CN102 CN103 CN104 CN105 AV2 Input Jack Earphone Jack Side AV Connector Description S-VIDEO2 Input Jack

9-5 Main SMPS Board

CN800 : AC IN (90 ~ 264V) CN804-1(Main SMPS) CN102(Main Board) Pin No. Signal 5.3V RTN N/C N/C RTN RTN 12V PS_ON RTN STBY FAN_ON FAN_D CN803(Main SMPS) CN101(Main Board) Pin No. Signal 6.5V RTN 12V RTN 18Vamp 18Vamp RTN_amp RTN_amp Vt RTN CN810(Main SMPS) CN2013(Logic Board) Pin No. Signal STBY VS_ON N/C PS_ON RTN 5.3V RTN RTN 5.3V 5.3V CN809(Main SMPS) CN3(DC-DC SMPS) Pin No. Signal 5.3V Vg RTN RTN RTN RTN RTN Va Va N/C Vs Vs
CN811, CN804-2 and CN805, CN806, CN807, CN808 are not used.

9-6 DC-DC SMPS Board

CN2(DC-DC SMPS) CN5010(Y B'D) Pin No. Signal Vs Vs RTN RTN Vset RTN Vscan RTN Vg D5.3V
CN4(DC-DC SMPS) CN4004(X B'D) Pin No. 9 Signal Vs Vs RTN RTN Ve RTN RTN Vg D5.3V
CN5(DC-DC SMPS) CN2710(F-Buffer) Pin No. 5 Signal RTN N.C D5.3V N.C Va
CN3(DC-DC SMPS) CN809(Main SMPS) Pin No. Signal D5.3V Vg RTN RTN RTN RTN RTN Va Va N.C Vs Vs

9-7 PDP Module

Assy ASSY PDP MODULE P-LOGIC MAIN BOARD ASSY PDP MODULE P-X MAIN BOARD ASSY PDP MODULE P-Y MAIN BOARD ASSY PDP MODULE P-Y MAIN SCAN BUFFER ASSY PDP MODULE P-ADDRESS E BUFFER ASSY PDP MODULE P-ADDRESS F BUFFER
Code No. BN96-03106A BN96-03101A BN96-03102A BN96-03103A BN96-03104A BN96-03105A
Description Logic Main Board X Drive Board Y Drive Board Y Buffer Board Address Buffer Board Address Buffer Board

Schematic Diagram

CN1004

TP1064

CN1006 UB0112C-V1

SCL2 SDA2 TU_SCL TU_SDA

CH_SCL CH_SDA

IIC_DTV_SEL CONTROL2

OPTICAL SPDIF OUT

100nF 16V 2

BD1006

OP1001 CT5000-2870

BD1004

TP1077

TP1075

IC1002

MP1410ES

BS IN SW GND NC EN COMP FB

11.5Kohm 1/10W

C1013 C1014
TP1074 AGND_IN C1007 100nF

TP1076

SPDIF_OUT C1015 C1016

C1008 10uF 16V

FT1001 SGM32F1E104-2A

220uF 16V

2A Current

SS24 180pF 100Kohm

C1018 C1017 R1054

3.6Kohm 1/10W

AGND_IN AGND_IN
Operation Instruction & Installation
11. Operation Instruction & Installation
11-1 Product Features and Functions
11-1-1 Front (or Side) Panel

Front (or Side) Panel

PS-42E7H/PS-42E7S SOURCE Displays a menu of all of the available input sources (TV, Ext.1, Ext.2, AV, S-Video, Component, PC, HDMI). MENU Press to see the on-screen menu of your TVs features. + Press to decrease or increase the volume. In the on-screen menu, use the + buttons as you use the and buttons on the remote control. C/P. Press to change channels. In the on-screen menu, use the C/P. buttons as you use the and buttons on the remote control. (ENTER) Press to confirm a selection. (Power) button Press to turn the TV on and off. Power Indicator - Power Off: Red - Power On: Off Remote Control Sensor Aim the remote control towards this spot on the TV.

Speaker

PS-42E71H

Side Panel

S-Video or Video / Audio L/R - Video (S-Video or Video) and audio inputs for external devices, such as a camcorder or VCR. headphones jack - You can connect a set of headphones to your television if you wish to watch a television programme without disturbing the other people in the room. Prolonged use of headphones at a high volume may damage your hearing.

13 Teletext store 16 Teletext mode selection (LIST/FLOF) 17 Teletext sub page 20 P P : Teletext next page : Teletext previous page
10 Sound effect selection 11 Picture effect selection 12 Adjust screen brightness to surrounding environment 14 Sound mode selection 15 TruSurround XT mode button 16 Available source selection 17 Previous channel 18 Automatic Power-off 19 Selects the PC mode directly 20 Next channel Previous channel
21 Teletext cancel 23 Teletext reveal 24 Teletext display/mix both teletext information and the normal broadcast 28 Teletext size selection Fastext topic selection
The performance of the remote control may be affected by bright light. This is a special remote control for the visually impaired, and has Braille points on the Power, Channel and Volume buttons.
11-2 Installation Notes and Precautions
11-2-1 Installation Notes
1. Contact a technician for installing the wall bracket. 2. Samsung Electronics is not responsible for any damages to the product or harm to customers when the installation is done by the customer. 3. This product is for installing on cement walls. The product may not stay in place when installed on plaster or wood. 4. The package contents and parts supplied for the wall mount are subject to change without prior notice.

11-2-2 Mounting Kits

Wall Mount Bracket ASSY-HINGE Screws

Plastic Hanger : 4 EA

LEFT :1EA RIGHT :1EA

SCREW : 4 EA

11-2-3 How to assemble the Wall Mount Bracket
Captive Screws 1 The wall mount bracket is delivered separately. Please tighten the captive screw in the direction of the arrow after assembling the bracket. Install the Wall Mount Bracket after the screws are securely inserted into the wall. ASSY-HINGE (LEFT) Separate ASSY-HINGE into Left and Right.

Wall Mount Bracket

ASSY-HINGE (RIGHT)
11-2-4 Instructions on Securing the SET to the Wall Mount Bracket
1 Remove the screws from the back of the PDP. 2 Use the screw and assemble the plastic hanger. (Please refer to the following picture.)
1 Please ask the installers to install the wall mount bracket. 2 Please be sure to check if the plastic hanger is completely secured on both the left and right side after hanging the SET on the wall mount bracket. 3 Please avoid catching your fingers while installing and adjusting the angle. 4 Please tightly secure the wall mount bracket to the wall to avoid injury from a falling SET.
Tighten the screws of the plastic hanger (shown in picture 2) to the back side of the PDP.
Remove the Safety Pins. Fasten the 4 plastic latches assembled at step ( ) on the back side of the PDP using the guide holes of the wall mount, push ( ) and hook ( ) down to secure the PDP on the wall mount as illustrated. Secure the PDP by inserting the Safety Pins, not to fall from the wall mount. PDP panel
Wall attachment panel bracket

11-2-5 How to Adjust Mounting Angle
Secure the SET to the wall mount bracket.(Please refer to the follow ing instructions.) Set the angle by pulling the upper end of the SET attached to bracket in the direction of the arrow. (Refer to the illustration on the right.) The angle can be adjusted from 0 to 15 by 2.
Hold onto the middle of the PDP to adjust the angle (not the sides of the PDP).
11-2-6 Connecting External Devices to the PDP
1 Be sure to remove the safety pins underneath the PDP. If the safety pins are not removed, the angle cannot be adjusted. Any attempt to do so may cause damage to the PDP. Hold onto the bottom of the PDP and pull forward fully as directed by the arrow as illustrated) to adjust the angle. (0~20 by 2) Insert the Safety Pins to the front guide holes on both sides as illustrated in figure. Viewing the PDP after connecting the external devices Remove the Safety Pins to adjust the angle to 0, and then secure the Safety Pins again. For safety, be sure to secure the PDP using the safety pins. If the safety pins are not used, the PDP may fall, causing serious injury.
Alignment & Adjustment
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.
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 1. Calibration 2. Option Table XXXX XXXX 3. White Balance 4. SVP-PX 5. Option Block 6. STV8257/STA323W 7. YC Delay 8. Adjust 9. ----10. W/B MOVIE 11. Checksum 12. Reset 13. ----T-AUD42PEAS-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec. 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.

3-3 Factory Data

The underlined are items applied during the service adjustment. None of the others should be adjusted.
1. Calibration 2. Option Table XXXX XXXX 3. White Balance 4. SVP-PX 5. Option Block 6. STV8257/STA323W 7. YC Delay 8. Adjust 9. ----10. W/B MOVIE 11. Checksum 12. Reset 13. ----T-AUD42PEAS-XXXX (Main Micom Ver) T-AUD42PEUHS-XXXX (Sub Micom Ver) Month / Day / Year / Hour / Min. / Sec.
1. Calibration AV Calibration DTV Calibration PC Calibration HDMI Calibration 2. Option Table

: W/B Calibration

: Setting option
Blue Eye : ON 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 Sub Bright R off set G off set B off set Sub contrast R gain G gain B gain : Adjustment White Balance ( Range 0~255 ) : 128 : 128 : 128 : 128 : 128 : 128 : 128 : 128
4. SVP-PX ComB Filter Sharpness
: SVP-PX Correct Register : Y-Filter - 80H : H2Gain H4Gain V2Gain V4Gain Sr2Gain Sr4Gain SI2Gain SI4Gain Peakth1 Peakth2 Peakth3 RF/AV 0DH 04H 0CH 04H 00H 00H 00H 00H 00H 80H 00H 80H 80H 80H 80H RF/AV 4EH 4EH 4EH 7CH 7CH 7CH RF/AV 84H 23H 80H 80H 00H 40H 80H 80H D6H FEH FEH 00H 00H low 10H 10H 04H 04H COMP PC 4BH 48H 4BH 48H 4BH 48H 7BH 80H 7BH 80H 7BH 80H HDMI 3BH 3BH 3BH 9DH 9DH 9DH COMP PC 10H 10H 04H 04H 10H 10H 04H 04H 00H 00H 00H 00H 00H 00H 00H 00H 00H 00H 80H 80H 00H 00H HDMI 08H 00H 08H 04H 00H 00H 00H 00H 00H 80H 00H
: YNROFF CNROFF YNRON CNRON R-Offset G-Offset B-Offset R-Gain G-Gain B-Gain

RGB Calibration :

ADC Calibration : TCD3 Contrast TCD3 Brightness TCD3 CR TCD3 CB TCD3 Delay Analog Y Offset Analog PB Offset Analog PR Offset Analog Y Gain Analog PB Gain Analog PR Gain Black Level SVP Brightness Calibration Target : AV ADC COMP ADC PC ADC ALL RGB
COMP PC HDMI 78H 78H 78H 20H 20H 20H 80H 80H 80H 80H 80H 80H 00H 00H 00H 40H 42H 40H 80H 39H 80H 80H 39H 80H CBH CFH D6H 9AH 80H FEH 9AH 80H FEH 00H 00H 00H 00H 00H 00H high F8H F8H F8H F8H delta 04H 04H 04H 10H
5. Option Block FRC-Micronas FRC-Samsung LBE/FBE : Test Pattern Black Stretch Tilt Black Stretch Gain Black Stretch Ratio Skin En Skin Gain Skin T X Skin T Y White En MCM Gain White T X White T Y CHY Gain1 CHY Gain2 CHC Gain1 CHC Gain2 CHM Gain1 CHM Gain2 ColorGain TY ColorGain TC ColorGain TM Color Gain Input RGB Gain Input RGB Offset

1-4 Installation Precautions
1. For safety reasons, more than two people are required for carrying the product. 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. When connecting the RF antenna, check for a DTV receiving system and install a separate DTV reception antenna for areas with no DTV signal. When installing the product, leave enough space (4") between the product and the wall for ventilation purposes. A rise in temperature within the product may cause fire. 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.
8. 2. Keep the power cord away from any heat emitting devices, as a melted covering may cause fire or electric shock. Do not place the product in areas with poor ventilation such as a bookshelf or closet. The increased internal temperature may cause fire. 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. 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. 9.

Circuit Description

13. Circuit Description
13-1 Power ON/OFF Signal Timing Sequence

70 m Sec.

AC POWER ON/OFF AC POWER OFF
Standby step turn-off for -processor reset 5V 3.4 V
Stand-By, (POP Option outputs) PS_ON (Active Low) from PS External (Remote controller ON/OFF) PFC output DC OUTPUTS Va DC OUTPUTS D5.3V,A6.5V,12V,Vamp,Vt OUTPUTS Vg Vca
Remote Controller ON Remote Controller ON
Vg vs. 3.4V turn-off sequence
VS_ON (Active high) from P/S External DC OUTPUT Vs Vcs

DISPLAY ON / OFF

DISPLAY ON
Keep Display ONw/o display flicker while 3cycle full-dip condition
1. When connecting the AC power cord, Stand-By 5V from the Main SMPS is supplied to the Main Board (Pin 3 of CN1002 of Main Board). 2. When pressing the Power button on the remote control or on the main body, PS_ON (Pin 5 of CN1002 of Main Board) changes from High to Low. 3. If the PS_ON signal changes to Low, the Main SMPS supplies power to the Main Board and Logic Board, and Va and Vg power is supplied to the DC-DC SMPS. 4. If the VS_ON signal from the Logic Board changes from Low to High, the Main SMPS supplies VS power to the X and Y Main Board through the DC-DC SMPS, and the screen displays a picture on it.

Requisite Components Necessary for Drive Board Operation 1) Power - Supplied from the power board. The optimal value may differ from the following: a) Vs : 200V - Sustain b) Vset : 190V - Y Rising Ramp c) Ve : 110V - Ve bias d) Vscan : -190V - Scan low bias e) Vsc_h : -70V - Scan high bias (Created by the DC-DC power block of the Y Drive board) f) Vdd : 5V - Logic signal buffer IC g) Vcc : 15V - Gate drive IC 2) Logic Signal - Supplied by the Logic board - Gate signal of each switch
Drive Circuit Architecture and Function Description - Description of the function of each board

Power B'd

Y-Buffer

Y Drive B'd

- Sustain Pulse (Energy Recovery) - Rising Ramp Pulse - Falling Ramp Pulse - Vscan Pulse

X Drive B'd

- Sustain Pulse (Energy Recovery) - Ve Bias
Y Pole Terminal (4 Block)

Logic E-Buffer Logic B'd

Logic F-Buffer
X Pole Terminal (2 Block)
1) X Drive Board This is connected to the X port part of the panel. 1) Sustain voltage waveform (including ERC) is output, and 2) Ve bias in the Scan section is maintained. 2) Y Drive Board This is connected to the Y port part of the panel. It outputs 1) Sustain voltage wave form (including ERC), and 2) Y Rising, Falling Ramp waveform, and maintains 3) Vscan bias. 3) Y Buffer Board A board, which applies the Scan waveform to the Y terminal block, consists of 12 Scan Driver ICs (TI SN755870: 64 Outputs).
Drive Waveform Specifications - Drive Waveform
- Description of the function of each pulse 1) Y Preset RA Pulse This is supplied to the first sub-field and erases the discharge status of the previous subfield. 2) Y Main RA Pulse During the Y Rising Ramp section, approximately 300V~350V (Vscan-h + Vset) of external voltage is supplied to the Y electrode, and a weak discharge is started when each gap voltage is equal to the discharge start voltage. While maintaining the weak discharge, as a whole, negative wall charges are accumulated on the Y electrode and positive wall charges on the X electrode and the address electrode. During the Y Falling Ramp section, the negative wall charges accumulated on the Y electrode by the approximately 105V of X bias are used to erase the positive wall charges on the X electrode, and the address electrode maintains most of the positive wall charges accumulated during the (0V) Rising Ramp section preparing for the next address discharge. 3) Y Scan Pulse (Odd/Even) A scan pulse classifies the Y electrode into Odd and Even lines and selects FPC output electrodes sequentially (one line-at-atime). At this time, Vscan is called the Scan Bias Voltage. A Vscan voltage of approximately -175 Volt (Vsc_1) is supplied to the electrode lines. For the other lines, -56 volt (Vsc_h is higher than Vscan-l by 120V) is supplied. However, negative wall charges are accumulated on the Y electrode by the Ramp pulse, and positive wall charges are accumulated on the address electrode, and the voltage applied to the cells, to which the Address pulse (70V~75V) has been applied, becomes higher than the discharge voltage. An address Discharge occurs as a result. Since the Scan and Data pulse is applied one line at a time as above, the address time of PDP is very long. 4) IDS Pulse (InDependent Sustain Pulse) Since an Odd Scan is performed first, the Odd line output sustains optical twice during the IDS section. At this time, a Sustain Discharge does not occur for the Even line because the Even line is not scanned. 5) CPS Pulse (ComPare Sustain Pulse) By floating the Odd line that caused the Sustain Discharge in the IDS section to the Vscan-h level, and introducing the Sustain Discharge only for Even lines, it compensates for the optical output difference between the Even and Odd lines. 6) CMS Pulse (ComMon Sustain Pulse) Actual optical is output during the common Sustain Discharge section. 13-8 Samsung Electronics

The interlace mode is not supported. The television might operate abnormally if a non-standard video format is selected. 480i/p, 576i/p, 720p, or 1080i is not available in PC mode. The PC text quality is optimum in WVGA mode (848 x 480@60Hz).
2-3 Specifications Analysis
Model PS-42E7S (Audi-42SD) Puccini(V4)

Design

Display Type Built-In Tuner Resolution PDP Module Basic Screen Size Aspect Ratio Power Consumption Dimensions Weight Brightness Picture Contrast Ratio Image Enhacer Equalizer Auto Volume Audio Surround Sound Speaker Output Speaker PIP Double Screen TTX Features Still Image My Color Control Color Weakness Energy Saving Screen Burn Protection Antenna CVBS S-Video Component(Y/PB/PR) Connections PC(D-SUB) DVI HDMI Sub Woofer Optical Coaxial
PDP TV O 852 x 480 Vinches 16 : W 1059.5(W) x 363(D) x 749.5(H) mm 35.0 Kg 1,100 Cd/m2 5000:1 FBE O O SRS TruSurround 10 W + 10 W Included O X O O X X O O 1 Input 2 AV 1 Input 2 Input 1 Input X 1 Input X X X
PDP TV O 1024 x 768 Vinches 16 : W 1050(W) x 86(D) x 755(H) mm 59.2 Kg 1,300 Cd/m2 10,000 : 1 DNIe-L O O SRS TruSurround 15 W + 15 W Included O O O O O O O O 1Input 1AV 1 Input 1 Input 1 Input X 1 Input X X X

2-4 Accessories

Accessories Item User Manual Supplied Accessories Item code BN68-00989T Remark
Remote Control AAA Batteries
BN59-00531A 4301-000103 Samsung Service center

Power Cord

3903-000145

Core Ferrite

3301-001110

S-VIDEO Cable

HDMI Cable
Accessories that can be purchased additionally

HDMI/DVI cable

Component Cables (RCA)

Internal shopping mall

PC Cable

PC Audio Cable

Antenna Cable

Scart Cable

Reference Information
14. Reference Information
14-1 Other issues related to other products
Problem A fixed screen can cause permanent damage to the TV Braun tube. Descriptions Braun, PDP and LCD TVs can all be damaged. When a still image is displayed in a sequence, this can leave stains or after-images due to the characteristics of the panel. However, the DLP TV has the advantage that no stains or after-images are left on the screen. The DLP TV has mirror pixels on the DMD panel that project the beam onto the screen, in which the mirror is a digital representation of 0s and 1s, leaving no trace of light. The mirror returns to a blank state so that no stains or after-images are left. - A too long DVI cable may cause a malfunction or degradation of the visual quality due to an attenuation of the signal. There is no recommendation for the cable length at present. In general, although a cable length of up to 5 meters should work, please check if video is properly displayed on the screen after connecting. If you think the length of the cable is longer than for normal use, check the visual quality of the video on the screen and shorten the length, if necessary. - This also applies to the PC RGB (D-Sub) cable. When the length of the cable is longer than for normal use, video may not be displayed on the screen. In this case, shorten the cable length. The digital distributed TV (Ready Technique) can render HD sources as HD-rated. However, you need to install a set-top box for this purpose. The digital TV alone cannot render HD broadcasting as HD-rated. Install the formal set-top box for HD broadcasts.

Wide 4:3

Changing the Order of the Picture Size for DTV 1080i/720p Sources
Restrictions 1. When you want to change the picture size in PIP 'ON', you must turn the PIP off before changing the size. However, you can change the main picture size even in PIP ON for products with no restrictions. 2. When the picture size is not Normal (4:3 for 4:3 display devices, 16:9 for 16:9 display devices) and you turn PIP on, the picture size is changed to Normal. However, you can turn PIP on without changing the picture size for products with no restrictions. 3. In the OSD notation for the picture size, 16:9 is represented as "Wide" instead of "16:9" for devices other than with 16:9 dis plays. Ex: For LCD 15:9 devices, "Wide" is displayed on the OSD instead of "16:9". 4. The picture size can be changed even in the blue screen. However, the picture size should be controlled by the product specifications if the change is impossible due to hardware restrictions.

14-2 Technical Terms

Virtual Channel In digital channels, a virtual channel is used. A virtual channel is a function that enables users to watch a channel by selecting a virtual channel number regardless of the region of the user. Run Auto Channel Scan for digital broadcasts, tune in to a UHF channel number according to the region for terrestrial broadcasts, or tune into a channel number allocated by the cable broadcasting station for a cable TV network, and then select a displayed virtual channel. For example, even if you tune into channels UHF 14(MBC), 15(KBS1), 16(SBS), 17(KBS2) and 18(EBS) broadcast from Kwanak mountain in Seoul, you can watch the channels using virtual channels such as 11-1(MBC), 9-1(KBS1), 6-1(SBS), 71(KBS2) and 10-1(EBS) regardless of your region and the actual local channel number. The virtual channel numbers may be used nationwide, but the virtual channel numbers may vary depending on the local broadcasting stations. (Since the digital channel numbers may vary depending on your region and can be changed by the broadcasting policy, ask your local broadcasting station or regional cable TV network company about the channel numbers.) If the virtual channel numbers are saved and the TV set can receive digital broadcasting, you can watch a digital channel by pressing the DTV+ button and pressing the first two digits of the corresponding virtual channel number. Custom Color Adjustment Using this function, a user can adjust the color according to personal preferences (Red, Grass-Color, Sky-Color, GoldColor, Skin-Color, White, Standard, Custom) without affecting other colors using automatic selection mode or fine adjustment mode. Simultaneous Screen Using this function, a user can view two video signals from separate video sources on a single screen at the same time. For example, you can watch TV and video simultaneously. Dolby Digital This is the digital sound standard developed by the Dolby Laboratory. You can select your preferred digital surround mode after connecting external speakers. Digital Broadcasting Digital Broadcasting is a television broadcasting signal digitized and transmitted according to the United States' terrestrial digital broadcast standard, or ATSC. Mono A type of audio interface that transmits the audio signal through a single channel only. Through a mono interface, it is hard to experience stereophonic sound and the sound is played using only one speaker. Reception Sensitivity Amplification (LNA) A signal amplification technique that amplifies a weak broadcasting signal by applying satellite technology to provide better visual quality even for users in regions where only a weak broadcasting signal is available. (LNA: Low Noise Amplifier) Sub Woofer A Sub Woofer is a speaker for ultra bass sound output only whose frequency is as low as 150Hz. There are two types: an active type which includes an amplifier, and a passive type, which requires an additional amplifier. Stereo A type of audio interface that transmits audio signal through 2 channels. Stereo transmits audio signals for right and left sound so that you can experience stereophonic sound, and the sound is played through 2 speakers. Partial Color Blind Person Mode Using this function, a user can adjust the red, green or blue colors according to the preferences of the partially color-blind person so that he or she can view the clearest possible picture on the screen. Analog Broadcasting Analog Broadcasting is a television broadcasting signal transmitted according to the NTSC standard. ANTENNA IN Port The port connecting the TV aerial via a coaxial cable. It is generally used for watching public broadcast programs. English Caption A function that displays English captions or text information included in the broadcast signal or video tape. You can use this function for your English studies by watching AFKN or CC marked video tapes. Video/Audio Ports You may experience poor visual and audio quality when watching a video tape on channel 3 or 4 through the antenna cable. You can experience better visual and audio quality by connecting the TV and VCR through the Video/Audio ports. The video port is in yellow, and the audio ports are in white and red. Wide Screen Wide Screen refers to a screen that is horizontally longer than a conventional TV screen. While the aspect ratio of a normal TV is 43, that of a wide screen is 169.

VESA Plug & Play This function enables the automatic recognition of devices when connecting the TV to the computer without additional settings. S-VIDEO IN Port This is called super video. S-Video is a type of video signal which has the video luminance and the color signal separated in order to provide better visual quality.
VHF/UHF VHF refers to TV channels 2 to 13, and UHF refers to TV channels 14 to 69.
Pixels, Resolution The pixels are the number of small dots that make up the TV screen. The resolution represents the number of pixels on a screen. For example, if the resolution of a TV is 852x480, it means the width of the screen consists of 852 pixel columns and the height of the screen consists of 480 pixel rows. In this case, the total number of pixels on the screen is 408,960. The more pixels there are, the higher the visual quality that can be achieved because the picture on the screen is displayed with more pixels and therefore with more detail.

42SD = 409K Pixels

Gradation, Color Depth Gradation describes the number of gradual brightness levels. Since all information is represented by binary numbers in a digital system, the Gradation is determined by the number of bits used to represent the brightness levels of a pixel on the TV screen. For example, if a pixel is represented by 8 bits, the Gradation is 28 or 256. Since a TV uses the three primary colors of light, R, G and B, the number of possible colors for a pixel is 256 x 256 x 256, 16,777,216, or 16.7 million colors. If 12 bits are used for a pixel, the gradation is 212 or 4096 for a color. Since three colors R, G and B are used, 4096 x 4096 x 4096 or 68.7 billion colors are supported per pixel. Since 68.7 billion colors are far more than 16.7 million colors, the picture will be displayed by far more abundant and natural colors using a 12 bit pixel. That is, since Gradation means the number of brightness levels, color represented by 4096 levels appears more natural than color represented by 256 levels.
Contrast The contrast is the ratio of brightness of the brightest color to the darkest color. The contrast is calculated by dividing the brightness of the brightest color by the brightness of the darkest color. For example, if the brightness of the darkest color is 1 and the brightness of the brightest color is 3000, then the Contrast is 3000/1 or 3000. A higher contrast means that a dark color is displayed darker and bright color is displayed brighter so that the screen contrast can be easily distinguished. The contrast differs from the Gradient which means the number of brightness levels. Therefore, if someone says that a 5000:1 contrast displays a color by 5000 levels, he is confusing Contrast with Gradation. Brightness Brightness is the brightness per unit screen area, the unit for brightness is candela (cd). For example, 1000cd/m2 means the brightness that is measured when 1000 candles are lit within 1 square meters area.

6-2-6 Main SMPS Troubleshooting

Power On

Abnormal STD_5V Check the U101, D108
Normal Abnormal PFC Check the U201, Q203, Q204

Normal

Abnormal VA Check the U501
Abnormal Multi Check the U601
Normal Abnormal VS Check the Q401, Q402
Check the Other board (Main Board or Driver Board) or Cable.
6-2-7 Drive Board Troubleshooting
1) Troubleshooting Summary Condition Name No Voltage Output No Display Abnormal Display Sustain Open Sustain Short Address Open Address Short Description Operating Voltage don't exist Operating Voltage exist, but an Image doesn't exist on screen Abnormal Image (not open or short) is no screen Some horizontal lines don't exist on screen Some horizontal lines appear to be linked on screen Some vertical lines don't exist on screen Some vertical lines appear to be linked on screen PSU Y-MAIN, X-MAIN, Logic Main, Cable Y-MAIN, X-MAIN, Logic Main Scan Buffer, FPC of X/Y Scan Buffer, FPC of X/Y Logic Main, Logic Buffer, TCP Logic Main, Logic Buffer, TCP Related Board
2) Troubleshooting Procedure in Abnormal Conditions No Display (Operating Voltage exist, but an 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.

No Display

[ Logic Main ] LED Blinks
[ Y-MAIN ] Check necessary points
[ X-MAIN ] Check necessary points
[ Logic Main ] Check if power is supplied ( 5V, 3.3V ) YES NO

Check the LED operation

Check the power connectivity
YES Check if internal is Default Black
NO Check the MICOM operation Check the FUSE
Check if any address data output is detected
Check the ASIC Control Signal output

Check the input voltage

Check if the data and control signals between DDR & ASIC are normal
If the input voltage is abnormal, replace the PSU and check it again as this indicates a PSU output error
[ Y-MAIN ] Check several points
[ X-MAIN ] Check several points
F5001 for VDD F5002 for Vs
OPEN FUSE Replace the Board
F4000 for VCC F4003 for Vs
OK Q5008 Q5009 Q5010 Q5013 SHORT Replace the Board Q4010 Q4011 Q4012 Q4015
OK SHORT Replace the Board

FET/ DIODE

Y-MAIN Normal State

X-MAIN Normal State

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