PDP-TELEVISION Chassis : D74A(P_Europe_42SD)_Audi Model : PS42E7SX/XEC SERVICE PDP-TELEVISION 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.
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 . . . .
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 . . . . . . . . . . . .
Block Diagram 7. Block Diagram 7-1 Overall Block Diagram LOGIC CONTROL DRIVER CIRCUIT & PANEL Scan Timing X Pulse Generator 852 x 480 Pixels 852 x 3 x 480 Cells Driver Timing Y Pulse Generator LVDS Interface Display Data Row Driver DEN Driver Timing Controller HSYNC DRAM HSYNC Data Controller DCLK Input Data Processor R-Data 8,10,12 or 13Bits G-Data 8,10.
Block Diagram CN804-1(Main SMPS) ↔ CN102(Main Board) CN803(Main SMPS) ↔ CN101(Main Board) CN810(Main SMPS) ↔ CN2013(Logic Board) CN2(DC-DC SMPS) ↔ CN5007(Y B'D) CN4(DC-DC SMPS) ↔ CN4001(X B'D) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal 1 5.3V 1 6.5V 1 STBY 1 Vs 1 D5.
Block Diagram 7-2 Partial Block Diagram 7-2-1 Audio/Video Signal Block Diagram DDR (16MB ) K 4D263238D RF Tu n er SIF A N A Tu n er Ren es as M30620 Flash Memory 144Pin 16K RAM Vi d eo 1/2 SVP PX (256-FPGA) Si d e S.Vi d eo PC HDMI H.P Au d i o SW HC4052 Ser v i c e EEPROM 3D Comb Multi Decoder De-interlacer Scaler LVDS Out WXGA Output DNIe (Demo) Caption/TTX2.5 HDMI 10b it p ro c ess Co m p o n en t 1/2 L VDS Tx 12b i t LBE ( SD) Au d i o Pr o c es s STV8257 Lip Sync(120ms) H.
Block Diagram 7-2-3 Module Driver Board Block Diagram 1. Y Drive Board 2.
Block Diagram 7-2-4 Logic Board Block Diagram 30 Pin Connector Y-MAIN CONTROL SIGNAL 31 Pin LVDS LVDS SIGNAL (8~12bit) 10 Pin (Power) RELAY_EINT Vs-ON 20 Pin Connector X-MAIN CONTROL SIGNAL TX, RX SCL, SDA 5 Pin (uart) DRIVE RESET DDR (FA) ASIC DATA : 32bit ADDR : 12bit DQS, CLK, nCLK DRIVE nRESET R,G,B : 24bit CLK 1, 2 BLK, POC, STB 60 Pin Connector DDR (MA) R,G,B : 24bit CLK 1, 2 BLK, POC, STB FM75 60 Pin Connector 7-2-5 Power Block Diagram Samsung Electronics 7-5
MEMO 7-6 Samsung Electronics
Wiring Diagram 8. Wiring Diagram 8-1 Overall Wiring ※ The ASS'Y code can be changed, see "5 Chapter. Electrical Part List.
Wiring Diagram 8-2 Partial Wiring 8-2-1 PDP Module ↔ SMPS Wiring ① CN809(Main SMPS) ↔ CN3(DC-DC SMPS) ② CN2(DC-DC SMPS) ↔ CN5007(Y B'D) ③ CN4(DC-DC SMPS) ↔ CN4001(X B'D) ④ CN6(DC-DC SMPS) ↔ CN2509(E-Buffer) ⑤ CN810(Main SMPS) ↔ CN2013(Logic B'D) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal 1 D5.3V 1 Vs 1 D5.3V 1 RTN 1 STD_5V 2 Vg 2 Vs 2 Vg 2 N.C 2 VS_ON 3 RTN 3 RTN 3 RTN 3 D5.
Wiring Diagram 8-2-2 Connect Cables ※ The code number of cable(Lead-connector) can be changed, see "5 Chapter. Electrical Part List.
MEMO 8-4 Samsung Electronics
PCB Diagram 9.
PCB Diagram ① CN2013(Logic B'D) ↔ CN902(Main Board) Pin No. Signal Pin No. Signal Pin No. Signal 1 GND 12 TXOUT2+ 23 TXOUT0B- 2 GND 13 GND 24 TXOUT0B+ 3 TXOUT- 14 GND 25 4 TXOUT+ 15 TXOUTCLK- 26 GND 5 GND 16 TXCLKOUT+ 27 SCL_G 6 GND 17 28 GND 7 TXOUT- 18 29 SDA_G 8 TXOUT+ 19 TXOUT3- 30 GND 9 20 TXOUT3+ 31 10 21 32 GND 22 33 GND 11 9-2 TXOUT2- ② CN804-1(Main SMPS) ↔ CN102(Main Board) ③ CN803(Main SMPS) ↔ CN108(Main Board) Pin No.
PCB Diagram ④ CN740(Main Board) ↔ CN001(Power Button) ⑤ CN501(Main Board) ↔ Speaker Out ⑥ CN741(Main Board) ↔ CN1(Function Board) Pin No. Signal Pin No. Signal Pin No.
PCB Diagram 9-2 Power & IR Board No Loc. No. ① RM1 Remote Control Sensor ② SW1 Power Button OP1 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. ③ Description 9-3 Function Board Function Key. Located on the side of the unit. 9-4 Side AV Board No Loc. No.
PCB Diagram 9-5 Main SMPS Board ① CN800 : AC IN (90 ~ 264V) ② CN804-1(Main SMPS) ↔ CN102(Main Board) ③ CN803(Main SMPS) ↔ CN101(Main Board) ④ CN810(Main SMPS) ↔ CN2013(Logic Board) ⑤ CN809(Main SMPS) ↔ CN3(DC-DC SMPS) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal 1 5.3V 1 6.5V 1 STBY 1 5.3V 2 RTN 2 RTN 2 VS_ON 2 Vg 3 N/C 3 12V 3 N/C 3 RTN 4 N/C 4 RTN 4 PS_ON 4 RTN 5 RTN 5 18Vamp 5 RTN 5 RTN 6 RTN 6 18Vamp 6 5.
PCB Diagram 9-6 DC-DC SMPS Board ① CN2(DC-DC SMPS) ↔ CN5010(Y B'D) ② CN4(DC-DC SMPS) ↔ CN4004(X B'D) ③ CN5(DC-DC SMPS) ↔ CN2710(F-Buffer) ④ CN3(DC-DC SMPS) ↔ CN809(Main SMPS) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal 1 Vs 1 Vs 1 RTN 1 D5.3V 2 Vs 2 Vs 2 N.C 2 Vg 3 RTN 3 RTN 3 D5.3V 3 RTN 4 RTN 4 RTN 4 N.C 4 RTN 5 Vset 5 Ve 5 Va 5 RTN 6 RTN 6 RTN 6 RTN 7 Vscan 7 RTN 7 RTN 8 RTN 8 Vg 8 Va 9 Vg 9 D5.3V 9 Va 10 D5.
PCB Diagram 9-7 PDP Module ※ The ASS'Y code can be changed, see "5 Chapter. Electrical Part List." No Assy Code No.
MEMO 9-8 Samsung Electronics
Schematic Diagram 10. Schematic Diagram 10-1 Analog 10-1-1 POWER This Document can not be used without Samsung’s authorization. Power Signal B5V_VCC +6V BD101 IC101 TP102 KIA78D05F HH-1H4532-121JT A6.
Schematic Diagram 10-1-2 MICOM This Document can not be used without Samsung’s authorization. A5V MICOM HDMI_5V PC_5V D201 Signal 1N4148WS-F Power DDC_VCC D202 KDS184 R201 1Kohm MAIN_KEY_INPUT1 MAIN_KEY_INPUT2 XREF SC1_D4_CONT1_ID SC2_D4_CONT3_ID XREF MCAD(0:7) XREF DDC_WP XREF XREF 100ohm 1/10W 100ohm 10uH 50V 1nF DGND XREF IIC_DTV_SEL COMP_DTV_SEL XREF C206 R0200 100ohm 1/10W R0201 100ohm 1/10W XREF R240 0ohm 0ohm X201 10.
Schematic Diagram 10-1-3 IN_OUT_JACK This Document can not be used without Samsung’s authorization. Power Signal R343 1 R342 0ohm XREF 18Kohm R344 75ohm R347 75ohm R349 75ohm XREF XREF R358 6.8Kohm D353 D354 3 D352 3 D351 3 R355 R356 R357 75ohm 75ohm 75ohm XREF 3 1.6Kohm 3 R328 XREF D355 D320 A5V D321 XREF C341 47pF D335 R361 100ohm C337 100pF D337 D336 C334 100pF R345 18Kohm R346 100ohm R350 100ohm XREF $V D348 D394 D349 C339 47pF CDS3C30GTH R352 6.
Schematic Diagram 10-1-4 HDMI This Document can not be used without Samsung’s authorization.
Schematic Diagram 10-1-5 SOUND This Document can not be used without Samsung’s authorization.
Schematic Diagram 10-1-6 SVP-PX DDR_RAS# DDR_CS0# K4 J8 K9 A3 J7 VSS VSS VSS VSS VSSQ VSSQ C8 C9 C3 C4 C5 C10 D5 D8 A10 VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ G4 E9 F4 F9 G9 H4 H9 E4 VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ VSSQ G10 G3 B3 J9 J4 L2 K12 B10 NC NC NC VSSQ NC L3 K11 K8 NC NC L12 L9 H3 VDDQ VDDQ DQ17 VDDQ F10 E10 E3 D11 DQ18 VDDQ DQ19 VDDQ DQ20 VDDQ DQ21 VDDQ D2 B11 B9 B7 DQ22 VDDQ DQ23 VDDQ B4 VDD VDDQ VDD VDD V
Schematic Diagram 10-1-7 TUNER 10-1-9 FBE_Option This Document can not be used without Samsung’s authorization. This Document can not be used without Samsung’s authorization. Power Power B5V_VCC Signal 10uH-K L740 Signal B9V B9V_LNA BD742 10uH C754 22uF 16V VT C755 C758 TU740 100nF TP730 MGND1 C757 1 CVBS1 100pF 100pF B3.
Schematic Diagram 10-1-10 FRC This Document can not be used without Samsung’s authorization. DNI_RESET A1.2V_PLL D3.3V_FRCPLUS D1.2V_FRCPLUS XREF R801 100ohm 1/10W D1.2V_PLL DNIE_CLKOUT C801 100nF 16V IC801-1 IC801-3 IC801-2 SDA1 SCL1 XREF XREF 0ohm 0ohm R802 R803 0ohm 0ohm X REF HSOUT_EX VSOUT_EX R807 R806 DNIE_BOUT(0:11) R804 R805 0ohm 0ohm R808 R809 R810 R811 R812 R813 C802 FRC XREF 50V 1.
Schematic Diagram 10-1-11 FRC Memory This Document can not be used without Samsung’s authorization. LVDS RX ( FOR FRC ) FRC Memory +3.3V_FRC D3.3V_SDRAM D3.3V_SDRAM LV_E(0:11) L807 B LV_E(0) LV_E(1) LV_E(2) LV_E(3) LV_E(4) LV_E(5) LV_E(6) LV_E(7) LV_E(8) LV_E(9) LV_E(10) LV_E(11) +3.3V C676 1nF C677 100nF C678 10uF 16V C820 C819 +3.3V 10nF 50V 100uF 16V C821 1nF 50V DELETE OPTION L613 1.5uH C860 C861 C862 C863 C864 10uF 100nF 100nF 100nF 100nF 16V L616 1.
Schematic Diagram 10-1-12 LVDS This Document can not be used without Samsung’s authorization. Power Signal FT901 C901 SGM32F1E104-2A 100uF 1 3 FT902 SGM32F1E104-2A B3.3VD LBE_R(0:11) C903 C904 10uF 16V 10uF 16V 3 +3.
Schematic Diagram 10-1-13 DTV / TUNER / POWER This Document can not be used without Samsung’s authorization.
Operation Instruction & Installation 11. Operation Instruction & Installation 11-1 Product Features and Functions 11-1-1 Front (or Side) Panel Front (or Side) Panel 1 SOURCE Displays a menu of all of the available input sources (TV, Ext.1, Ext.2, AV, S-Video, Component, PC, HDMI). 2 MENU Press to see the on-screen menu of your TV’s features. 3 + Press to decrease or increase the volume. In the on-screen menu, use the + buttons as you use the œ and √ buttons on the remote control. 4 C/P.
Operation Instruction & Installation 11-1-2 Rear Panel Rear Panel 7 1 8 or Cable Television Network or 6 5 2 3 4 Whenever you connect an audio or video system to your set, ensure that all elements are switched off. When connecting an external device, match the colour of the connection terminal to the cable. 1 ANT IN VHF/UHF (75Ω) - 75Ω Coaxial connector for Aerial/Cable Network.
Operation Instruction & Installation 11-1-3 Remote Control 1 POWER button (turns the TV on and off) 2 Number buttons for direct channel access 3 One/Two-digit channel selection 4 Channel control button (Refer to page 13) 5 Selects the TV mode directly 6 Volume increase Volume decrease 7 Temporary sound switch-off 8 Displays the main on-screen menu 9 Picture-In-Picture On/Off 10 Sound effect selection 11 Picture effect selection 12 Adjust screen brightness to surrounding environment 14 Sou
Operation Instruction & Installation 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.
Operation Instruction & Installation 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.
Operation Instruction & Installation 11-2-5 How to Adjust Mounting Angle 1 2 3 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).
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.
Alignment & Adjustment 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.
Alignment & Adjustment 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.
Alignment & Adjustment 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. 4.
Alignment & Adjustment 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. 5.
Alignment & Adjustment 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. 7. YC Delay PAL B/G PAK D/K PAL I SECAM B/G SECAM D/K SECAM L/L' NTSC 3.58 NTSC 4.43 AV PAL AV SECAM AV NT3.58 AV NT4.
Alignment & Adjustment 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. 10.
Alignment & Adjustment 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 : PAL Video (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".
Alignment & Adjustment 3-4-2 White Balance - Adjustment If picture color is wrong, check White Balance condition.
Alignment & Adjustment 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.
Alignment & Adjustment 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 3-6 Replacements & Calibration ※ The ASS'Y code can be changed, see "5 Chapter. Electrical Part List." * Check items listed after changing each Replaced Items Code No.
Alignment & Adjustment 3-6-1 Voltage Adjustment 1. After replacing the SMPS or PDP panel, you must adjust the voltage referring to the voltage label printed on the panel. (If you do not adjust the voltage, an abnormal discharge symptom may appear.) Value Vs 200 Va 65 Vset 195 Ve 120 Vscan -190 Board Adjustment SMPS-MAIN SMPS-DC/DC Voltage Label SMPS-MAIN SMPS-DC/DC 2. A point of adjusting SMPS-MAIN voltage.
Alignment & Adjustment 3. A point of adjusting SMPS-DC/DC. Test Point Vset (Middle) Vscan (Right) Vscan/Vset Adjustment Point VE Adjustment Point Ve Test Point * Use base chassis of PDP panel as GND point.
Precaution 1. Precaution To avoid possible damages or electric shocks or exposure to radiation, follow the instructions below with regard to safety, installation, service and ESD. 1-1 Safety Precautions 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.
Precaution 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).
Precaution 1-2 Servicing Precautions 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. 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.
Precaution 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 ass'ys.
Precaution 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.
MEMO 1-6 Samsung Electronics
Circuit Description 13. Circuit Description 13-1 Power ON/OFF Signal Timing Sequence 70 m Sec. Standby step turn-off reset for µ-processor µ AC POWER OFF AC POWER ON/OFF 5V 3.4 V Stand-By, (POP Option outputs) PS_ON (Active Low) from PS External (Remote controller ON/OFF) Remote RemoteController ControllerON ON OFF RemoteController ControllerON ON Remote PFC output DC OUTPUTS Va Vca Vg vs. 3.4V turn-off sequence DC OUTPUTS D5.3V,A6.
Circuit Description 13-2 Partial Block Description 13-2-1 Main SMPS 1. Outline (PDP 42inch/50inch SMPS) Considering various related conditions, the switching regulator with good efficiency and allowing for its small size and light weight was used as the power supply for PDP 42inch/50inch, VS requiring high power consumption Asymmetrical Half Bridge converter and flyback converter.
Circuit Description ② Short Circuit and Over current Protection An output short circuit is defined as output impedance of less than 300mohms. The power supply shall shutdown and latch off for shorting VS DC rails to return. Shorts between main output rails and STD_5V shall not cause any damages to the power supply. The power supply shall either shutdown and latch off for shorting is removed, the P/S shall recover.
Circuit Description 13-2-2 PDP Module 1. Logic Board ■ A name of main part of Logic Board and vocabulary. Item Name Explanation ① Y Connector The connector to output the control signal for the Y drive board. ② LVDS Connector The connector to receive the RGB, H, V, DATAEN and DCLK signals that have been LVDS encoded through the video board. ③ Power Connector The connector to receive power (5V, 3.3V) for the Logic board.
Circuit Description ■ About Logic Board The Logic Board consists of a Logic Main board, which processes the video signal input through LVDS and creates the address driver output and XY drive signals, and a Buffer board, which buffers the output signal and outputs the signal to the Address Driver IC (TCP IC).
Circuit Description 2. X, Y Control Block ■ Drive Circuit Definition The Drive Circuit is a circuit that generates a waveform (high-voltage pulse) for the X and Y electrode group of the panel's external port so as to control the panel. The high-voltage switching pulse is generated through the combination of the IC HYBRID (Drive block + IGBT) and FET.
Circuit Description ■ Requisite Components Necessary for Drive Board Operation 1) Power - Supplied from the power board.
Circuit Description ■ 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.
Circuit Description ■ Mechanism of the FET Operation and High-Voltage Switching Mechanism of the FET Operation 1) When the signal is output to the gate, (positive electric potential) FET short circuits (i.e. Conductor of resistance 0) 2) When no signal is output to the gate (GND), FET changes to an open circuit (i.e. an insulator of resistance ∞).
Circuit Description ■ Drive Board Connector Layout 1) X-Main Board 1.Vs 2.Vs 3.DGND 4.DGND 5.Ve 6.DGND 7.DGND 8.
Circuit Description 2) Y-Main Board CN5401 - Panel 9 CN5403 CN5005 CN5010 1 CN5402 - Panel CN5400 CN5000 - Panel 9. 8. 7. 6. 5. 4. 3. 2. 1.
Circuit Description ▶ Adjust the drive waveform so that the main reset (rising, falling:40usec) is the same as those in the F/W pattern.
Circuit Description ▶ Check that the output of X-Out of the X board follows the waveform of ※Attachment 2 when the power is supplied.
Circuit Description ※ Attachment 1 ■ Y Output Waveform Rising Ramp < Rising Ramp > Falling Ramp 13-14 < Falling Ramp > Samsung Electronics
Circuit Description < Even_Scan > Scan_l < Y Sustain > Samsung Electronics 13-15
Circuit Description ※ Attachment 2 ■ X Output Waveform < X Sustain > 13-16 Samsung Electronics
Product Specification 2.
Product Specification 2-2 Key Features Model PS-42E7S Screen Size 107 Cm / 42 Inches (16:9) Dimensions 1059.5(W) x 363(D) x 749.5(H) mm Weight 35.0 Kg Voltage EU : AC 220-240V~, 50Hz CIS : AC 100-240V~, 50/60Hz Colour System PAL, SECAM, NT3.58, NT4.
Product Specification ■ Feature - Component Interface (480i/480p/576i/576p/720p/1080i, Y/Pb/Pr) - Digital Interface : HDMI - Picture Size : Auto Wide/16:9/Wide4:3/Zoom/4:3 - Auto Store - Sleep Timer : 180 minute - Clock - Zoom, Previous channel, Blue Screen, Color Tone, Screen Burn Protection ■ Remocon - TM86 ■ Power Supply - EU : AC 220-240V, 50Hz - CIS : AC 100-240V~, 50/60Hz ■ Power Consumption - Max Power : 310 W ■ Both screen position and size will vary depending on the type of PC monitor and its reso
Product Specification 2-3 Specifications Analysis Model PS-42E7S (Audi-42SD) Puccini(V4) PDP TV Design Basic Picture Audio Features Connections 2-4 Display Type PDP TV Built-In Tuner O O Resolution 852 x 480 1024 x 768 PDP Module V5 V4 Screen Size 42 inches 42 inches Aspect Ratio 16 : 9 16 : 9 Power Consumption 310 W 380 W Dimensions 1059.5(W) x 363(D) x 749.5(H) mm 1050(W) x 86(D) x 755(H) mm Weight 35.0 Kg 59.
Product Specification 2-4 Accessories Accessories that can be purchased additionally Supplied Accessories Accessories Samsung Electronics Item Item code User Manual BN68-00989T Remote Control AAA Batteries BN59-00531A 4301-000103 Remark Samsung Service center Power Cord 3903-000145 Core Ferrite 3301-001110 S-VIDEO Cable - HDMI Cable - HDMI/DVI cable - Component Cables (RCA) Internal shopping mall PC Cable - PC Audio Cable - Antenna Cable - Scart Cable - 2-5
MEMO 2-6 Samsung Electronics
Reference Information 14. Reference Information 14-1 Other issues related to other products Problem Descriptions A fixed screen can cause permanent damage to the TV Braun tube. 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.
Reference Information ■ SD/HD broadcasts and the TV's display capability are related 1. A digital broadcast should be transmitted in wide screen (an aspect ratio of 16:9) HD. If the broadcasting station converts a conventional program created in normal screen (aspect ratio of 4:3) into a digital signal and broadcasts the signal, the left and right of the picture will not be displayed. This symptom also appears in other manufacturer's TV's.
Reference Information 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.
Reference Information External Input External Input is a connected video device such as a VCR, camcorder, DTV receiver, DVD, etc. as a video source. Satellite Broadcasting Satellite Broadcasting transmits programs via satellite so that a program can be viable in all areas at a high visual and sound quality. Approximately 100 channels including public broadcast channels are provided. To view a satellite broadcast, you have to install an additional receiver.
Reference Information VESA Plug & Play This function enables the automatic recognition of devices when connecting the TV to the computer without additional settings. VHF/UHF VHF refers to TV channels 2 to 13, and UHF refers to TV channels 14 to 69. 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.
Reference Information Color Reproductivity Each color displayed on the TV screen is implemented by a pixel on color coordinates which have an X and Y axis. For example, when a pixel on the X coordinate 0.65 and the Y coordinate 0.74 is displayed as a color and it becomes visible on the TV screen. While the possible color coordinate area is very wide, the color coordinate area of the signal broadcast from a broadcast station is smaller than that of possible color coordinates.
Electrical Part List 5. Electrical Part List 5-1 PS42E7SX/XEC Service Item You can search for the updated part code through ITSELF web site. URL:http://itself.sec.samsung.co.kr Loc. No. Code No. Description Specification Q'ty SA/SNA M0003 BN96-02746B ASSY STAND P-SET RIGHT 42E7,HIPS HB,GRAY 1 S.A M0013 BN96-03069A ASSY COVER P-REAR 42E7,PCM T0.5 1 S.A M0013 BN96-03070B ASSY COVER P-REAR BOTTOM 42E7,HIPS HB,BK 1 S.A M0018 BN97-00857A ASSY MICOM T-AUDMPEU-S-1001,PS42E7,D74A, 1 S.
MEMO 5-2 Samsung Electronics
Troubleshooting 6. Troubleshooting 6-1 First Checklist for Troubleshooting 1. Check the various cable connections first. - Check to see if there is a burnt or damaged cable. - Check to see if there is a disconnected cable connection or a connection is too loose. - Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board. 3.
Troubleshooting 6-2 Checkpoints by Error Mode 6-2-1 No Power Symptom - The LEDs on the front panel do not work when connecting the power cord. - The SMPS relay does not work when connecting the power cord. - The power of the unit seems to be out of order. The SMPS relay or the LEDs on the front panel do not work when connecting the power cord if the cables are improperly connected or the Main Board or SMPS is out of order.
Troubleshooting 6-2-2 When the unit is repeatedly turned on and off Symptom - The SMPS relay is repeatedly turned on and off. In general, the SMPS relay repeatedly turns on and off by the protection function due to a defect on a board connected to the SMPS. - Disconnect all cables from the SMPS, operate the SMPS alone and check if the SMPS works properly and if each voltage Major Checklist output is correct. - If the symptom continues even when SMPS is operated alone, replace the SMPS.
Troubleshooting 6-2-3 No Picture (When audio is normal) Symptom - Audio is normal but no picture is displayed on the screen. - This may happen when the Main Board is normal but the X, Y Main Board, Logic Board, or Y Buffer Board is out of order. Major Checklist - The output voltage of the Main SMPS or the DC-DC SMPS is out of order. - This may happen when the LVDS cable connecting the Main Board and the Logic Board is disconnected.
Troubleshooting 6-2-4 No Sound Symptom - Video is normal but there is no sound. - When the speaker connectors are disconnected or damaged. Major Checklist - When the sound processing part of the Main Board is out of order. - Speaker defect. Troubleshooting Procedures Is the cable connection between the Main Board and the speaker properly connected? Connect the cable properly or replace the cable, if necessary.
Troubleshooting 6-2-5 No Video Symptom - A normal/cable network analog broadcast screen is blank or abnormal. - Check the antenna connection settings (Antenna 1 - Normal/Cable/DTV, Antenna 2 - Only for DTV) Major Checklist - Check the tuner output signal (CVBS). - Check the power input of the Main board.
Troubleshooting 6-2-6 Main SMPS Troubleshooting Power On Abnormal Check the U101, D108 STD_5V Normal Abnormal Check the U201, Q203, Q204 PFC Normal Abnormal Check the U501 VA Abnormal Check the U601 Multi Normal Abnormal VS Check the Q401, Q402 Normal Check the Other board (Main Board or Driver Board) or Cable.
Troubleshooting 6-2-7 Drive Board Troubleshooting 1) Troubleshooting Summary Condition Name Description Related Board No Voltage Output Operating Voltage don't exist PSU No Display Operating Voltage exist, but an Image doesn't exist on screen Y-MAIN, X-MAIN, Logic Main, Cable Abnormal Display Abnormal Image (not open or short) is no screen Y-MAIN, X-MAIN, Logic Main Sustain Open Some horizontal lines don't exist on screen Scan Buffer, FPC of X/Y Sustain Short Some horizontal lines appear to
Troubleshooting 2) Troubleshooting Procedure in Abnormal Conditions ① 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.
Troubleshooting ② 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.
Troubleshooting ③ Sustain Open (some horizontal lines don't exist on screen) [ Y-FPC ] Sustain Open After Changing Y-buffer, recheck the status NG Replace the Panel There a defect on FPC OK Done (Defect is from Y-buffer) ④ Sustain Short (some horizontal lines appear to be linked on Video) [ Y-FPC ] Sustain Short (Discharging in unwanted Scan line) After Changing Y-buffer, recheck the status NG Replace the Panel There a defect on FPC OK Done (Defect is from Y-buffer) Samsung Electronics 6-11
Troubleshooting ⑤ Address Open, Short(some vertical lines don't exist on screen) ▶ Address Open and Short is related with Logic Main, Logic Buffer, FFC, TCP film and so on. This page shows you how to check the boards, and the following pages show you how to find the defective board.
Troubleshooting 6-3 Troubleshooting Procedures by ASS'Y ※ The ASS'Y code can be changed, see "5 Chapter. Electrical Part List." No Code No. Description 1 ASSY PCB P-SMPS Assy BN96-03052A Main SMPS 2 ASSY PCB P-SMPS BN96-01856A DC-DC SMPS Blank screen, the Relay repeats On and Off.
MEMO 6-14 Samsung Electronics
Exploded View & Part List 4. Exploded View & Part List 4-1 PS42E7SX/XEC You can search for the updated part code through ITSELF web site. URL:http://itself.sec.samsung.co.kr T0448 M0013 T0074 T0268 T0152 T0079 FT532 T0312 T0159 T0044 T0448 M0020 T0456 M0013 Loc. No. Code No. Description Specification Q'ty SA/SNA FT532 2901-001374 FILTER-EMI AC LINE 250V,6A,UL/SA/VDE,0.1 1 S.A M0003 BN96-02746B ASSY STAND P-SET RIGHT 42E7,HIPS HB,GRAY 1 S.
