Samsung PS-50Q7HD Service Manual
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Samsung PS-50Q7HD Service Manual

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SERVICE
PDP-TELEVISION
PDP-TELEVISION
Chassis : D74B(P_Europe_50HD)_Mustang
Model
: PS50Q7HDX/XEU
Manual
PS-50Q7HD
FEATURES
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
■
■

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Summary of Contents for Samsung PS-50Q7HD

  • Page 1 Model : PS50Q7HDX/XEU SERVICE Manual PDP-TELEVISION FEATURES 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 ■ ■ PS-50Q7HD...
  • Page 2 © Samsung Electronics Co., Ltd. Jun. 2006 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea Any unauthorized use of Manual can be punished under applicable AA82-03775A International and/or domestic law.

  • Page 3: Table Of Contents

    Table of Contents Chapter 1 Precaution ■ 1-1 Safety Precautions ............1-1 ■...
  • Page 4 Chapter 9 PCB Diagram ■ 9-1 MAIN & DTV MODULE Board ..........9-1 ■...

  • Page 5: Chapter 2 Product Specification

    Sound Sound AMP STA323W ST Microelectronics Audio S/W MM74HC4052 PDP Module Samsung SDI V5.1 Module 50" HD SAMSUNG SDI Remocon TM87B Cabinet ■ Chip Description - SVP-PX (IC611) : SVPTMPX contains dual-purposed triple 10-bit high-precision and high speed video ADCs for both PC and...

  • Page 6: Key Features

    Product Specification 2-2 Key Features Model PS-50Q7HD 1227.1(W) x 95.5(D) x 802.2(H) mm (Without Stand) Dimensions 1227.1(W) x 340(D) x 844.8(H) mm (With Stand) 42.6 Kg (Without Stand) Weight 49.0 Kg (With Stand) EU : AC 220-240V~, 50Hz Voltage CIS : AC 100-240V~, 50/60Hz Colour System PAL, SECAM, NT3.58, NT4.43...
  • Page 7 - You can input the DVI signal using the DVI ↔ HDMI conversion cable. - When connecting HDMI input using the DVI ↔ HDMI conversion cable, connect the sound signal to the DVI Audio IN port using a separate connection cable. Samsung Electronics...
  • Page 8 ▶ 480i/p, 576i/p, 720p, or 1080i is not available in PC mode. ▶ The PC text quality is optimum in XGA mode (1024 x 768@60Hz). (PS-42C7HD/PS-42Q7HD) ▶ The PC text quality is optimum in WXGA mode (1360 x 768@60Hz). (PS-50C7HD/PS-50Q7HD) Samsung Electronics...
  • Page 9 Teletext ○ Add-on services ○ ○ Channel list ○ ○ Auto store ○ ○ Manual store ○ ○ Language selection ○ ○ SPDIF OUT PCMCIA (Type Ⅱ) ○ ○ Connectors RS-232 (Phone Jack) ○ ○ Modem Smart Card Samsung Electronics...
  • Page 10 ○ ○ ○ Auto store ○ ○ ○ Manual store ○ ○ ○ Language selection ○ ○ ○ SPDIF OUT PCMCIA (Type Ⅱ) ○ ○ ○ Connectors RS-232 (Phone Jack) ○ ○ ○ Modem ○ Smart Card ○ Samsung Electronics...

  • Page 11: Specifications Analysis

    Product Specification 2-3 Specifications Analysis Model PS-50Q7HD (Mustang-50HD) Puccini (V4) Design Display Type PDP TV PDP TV Built-In Tuner Resolution 1366 x 768 1366 x 768 PDP Module Samsung SDI V5.1 Basic Screen Size 50 inches 50 inches Aspect Ratio...

  • Page 12: Accessories

    Product Specification 2-4 Accessories Accessories Item Item code Remark User Manual BN68-00889J Remote Control BN59-00516A AAA Batteries 4301-000103 Samsung Service center Power Cord 3903-000145 Cloth-Clean BN63-01798A Ferrite Core 3301-001110 S-VIDEO Cable HDMI Cable HDMI/DVI cable Component Cables (RCA) Internal shopping mall...

  • Page 13: Chapter 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. Samsung Electronics...

  • Page 14: How To Access Service Mode

    ※ 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. Samsung Electronics...

  • Page 15: Factory Data

    T-AUDMPEUS-XXXX (Sub Micom Ver) EnergySave : OFF Month / Day / Year / Hour / Min. / Sec. LBE/FBE : OFF FRC-Micronas : OFF FRC-Samsung : OFF : OFF CarrMute : OFF Language : English Shop Mode : OFF High Deviation...
  • Page 16 Analog PR Gain FEH 9AH 80H FEH Black Level 00H 00H 00H SVP Brightness 00H 00H 00H Calibration Target : high delta AV ADC F8H 04H COMP ADC F8H 04H PC ADC F8H 04H ALL RGB F8H 10H Samsung Electronics...
  • Page 17 Alignment & Adjustment 1. Calibration 5. Option Block 2. Option Table XXXX XXXX 3. White Balance FRC-Micronas 4. SVP-FX FRC-Samsung : Patt Sel 5. Option Block B Ratio 6. STV8257/STA323W W Ratio 7. YC Delay Pdf Min 8. Adjust Urd Th 9.
  • Page 18 Movie Color : 50 Movie Sharpness : 40 LNA PLUS : RFDB-1 Level RFDB-2 Level RFDB-3 Level RFDB-4 Level Hotel Option : Hotel Mode PWR On CH PWR On Vol. Max Volume L.Key Lock PWR On Src 9. ----- Samsung Electronics...
  • Page 19 W2 B Offset T-MST50PEUHQ-XXXX (Main Micom Ver) Movie Contrast T-AUDMPEUS-XXXX (Sub Micom Ver) Movie Brightness 50 Month / Day / Year / Hour / Min. / Sec. Movie Color Movie Sharpness 25 11. Checksum 12. Reset 13. ----- Samsung Electronics...

  • Page 20: Service Adjustment

    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 : PAL composite, Component : 1280*720/60Hz PC : 1024*768/60Hz ( Chess Pattern ) Samsung Electronics...
  • Page 21 No 6 : 1280X720@60 Hz No 21 : 1024X768@60 Hz * Pattern No 36 : 16 Color Pattern No 16 : Toshiba ABL Pattern 2. Optical measuring device : CA210 (FL) Please use the MSPG-925 LTH generator for model PS-50Q7HD. Samsung Electronics...
  • Page 22 - Adjust red offset ('x') and blue offset ('y') to the color coordinates. Low light Measurement point ( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD ) * 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.

  • Page 23: Software Upgrade

    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. Samsung Electronics 3-11...
  • Page 24 ① Turn off PDP-TV. ② Connect the RS-232 cable to the PDP-TV ③ Execute the sv2_fr.exe file. ④ Assign the path of samsung.tvz file (application image) ⑤ Execute the progress follow the screen until step 2. ⑥ Turn On the PDP-TV.

  • Page 25: Replacements & Calibration

    ASSY PDP P-ADDRESS F BUFF BOARD BN96-03364A ASSY PDP P-ADDRESS G BUFF BOARD BN96-03365A ※ When replacing the SMPS (DC DC) or PDP panel, you have to check the voltage printed on the panel sticker and adjust it. Samsung Electronics 3-13...
  • Page 26 (If you do not adjust the voltage, an abnormal discharge symptom may appear.) Value Board Adjustment SMPS-MAIN Vset SMPS-DC/DC Vscan -190 Voltage SMPS-MAIN SMPS-DC/DC Label 2. A point of adjusting SMPS-MAIN voltage. Vs Adjustment Vs Test point Va Test point Va Adjustment 3-14 Samsung Electronics...
  • Page 27 Alignment & Adjustment 3. A point of adjusting SMPS-DC/DC. Test Point Vset (Middle) Vscan (Right) Vscan/Vset Adjustment Point Adjustment Point Ve Test Point * Use base chassis of PDP panel as GND point. Samsung Electronics 3-15...
  • Page 28 MEMO 3-16 Samsung Electronics...

  • Page 29: Power On/Off Signal Timing Sequence

    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. Samsung Electronics 13-1...

  • Page 30: Partial Block Description

    O.C.P in each port is the same as following Table 2. Table 2. OCP specification Protection Output Circuit Trip point Notes 3.0 - 6.0A Shut down by Under Voltage Over Current 3.5A or more Short Circuit Protection Shut down by Under Voltage Output except Vs&Va ---------- 13-2 Samsung Electronics...
  • Page 31 When the Vcc voltage is higher than O.V.P level [Vcc(OVP)=31.2V(TYP)], Latch is on and power board is shut down. After Latch is on, this power board can not operate before the voltage of an electric capacitor C8123 is fully discharged for about 5 minutes. Samsung Electronics 13-3...
  • Page 32 If the temperature on the chip parts is higher than about 135℃, this power board operates in thermal protection mode and makes Latch on, finally this power board is shut down. < Vds Voltage Waveform on Sub-power Circuit FET > 13-4 Samsung Electronics...
  • Page 33 PFC controller has the function of over current protection by sensing the voltage (2 pin) coming from the current-sensing resistor R8201. If the over current flows across the sensingresistor, controller decreases the FET duty ratio for protection of part's damage. < FET Vds Waveform (100Vac input) > < FET Vds Waveform (230Vac input) > Samsung Electronics 13-5...
  • Page 34 Q8401 2SK2698 500V, 15A TOSHIBA Va FET RC8401 FMX-G26S 600V, 10A SANKEN Va Output Diode RC8551 FMG-26S 600V, 6A SANKEN Vs Output Diode RC8101 RBV-1506J 600V, 15A SANKEN Bridge Diode RL8101, RL8102 G5PA-1-M-E 250V, 10A OMRON Relay 13-6 Samsung Electronics...
  • Page 35 Circuit Description 13-2-2 PDP Module 1. Logic Board ■ A name of main part of Logic Board and vocabulary. Samsung Electronics 13-7...
  • Page 36 Full White, Jumper No : Black The Power Block that receives 5V input from SMPS and outputs 3.3V (L4957AD3.3V Main Power Input ⑬ regulator adopted) X Connector The connector to output the X Drive Board control signal. ⑭ 13-8 Samsung Electronics...
  • Page 37 ▶ If the screen is displayed abnormally when the Vref voltage is normal, conduct a short test to find any abnormal points and repair the points, if found. If the found short is internal, replace the board. ▶ The following waveform shows a waveform when the V-sinc and address data are output properly. Samsung Electronics 13-9...
  • Page 38 3. D1.2V (for ASIC Core) Since it is RSDS, process the signal using a differential signal. The above waveform is a positive signal. The waveform of the negative signal output is the reverse of the positive signal. 13-10 Samsung Electronics...
  • Page 39 In addition, a weak discharge is introduced, because the applied voltage is low. Samsung Electronics 13-11...
  • Page 40 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). 13-12 Samsung Electronics...
  • Page 41 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. Samsung Electronics 13-13...
  • Page 42 FET2 short circuits, GND is output via the output terminal. 2) When a signal is applied to G1, FET1 short cir cuits and when no signal is applied to G2, FET2 is opened, and 180V is output via the output terminal. 13-14 Samsung Electronics...
  • Page 43 Circuit Description ■ Drive Board Connector Layout 1) X-Main Board 1.VDD 2.VCC CN4004 3.DGND 4.DGND CN4000 5.Vb 6.DGND 7.DGND 8.Vs 9.Vs CN4003 380mm CN4002 CN4005 CN4001 -signal 190mm Samsung Electronics 13-15...
  • Page 44 CN5401 - Panel 1.Vs CN5007 CN5402 2.Vs 3.GND - Panel 4.GND CN5009 5.Vset CN5407 6.GND 7.Vscan 8.GND 9.VCC CN5403 10.VDD - Panel 320mm CN5501 - Panel CN5507 CN5008- CN5010 CN5502 signal - Panel CN5503 - Panel 265mm 13-16 Samsung Electronics...
  • Page 45 ▶ Adjust the drive waveform so that the main reset (rising, falling:40usec) is the same as those in the F/W pattern. (※ Attachment 1 reference) 120usec 70usec Vsc_h Variable register Rising ramp Variable register Falling ramp Variable register < Y-Main > <Voltage Adjustment Specifications> Vset Vsc_l Vsc_h 190V 200V -190V -70V 115V Samsung Electronics 13-17...
  • Page 46 Circuit Description ▶ Check that the output of X-Out of the X board follows the waveform of ※Attachment 2 when the power is supplied. X-OUT 13-18 Samsung Electronics...
  • Page 47 Circuit Description ※ Attachment 1 ■ Y Output Waveform Rising Ramp < Rising Ramp > < Falling Ramp > Falling Ramp Samsung Electronics 13-19...
  • Page 48 Circuit Description Scan_l < Even_Scan > < Y Sustain > 13-20 Samsung Electronics...
  • Page 49 Circuit Description ※ Attachment 2 ■ X Output Waveform < X Sustain > Samsung Electronics 13-21...
  • Page 50 MEMO 13-22 Samsung Electronics...

  • Page 51: Overall Block Diagram

    Block Diagram 7. Block Diagram 7-1 Overall Block Diagram Y Main Board X Main Board 1366x768 Pixels 1366x768x3 Cells (R,G,B) Deinterlac- (220V) Image Scaler Decoder Micom Samsung Electronics...
  • Page 52 Pin No. Signal Pin No. Signal Pin No. Signal D5.3V 6.5V D5.3V D5.3V D5.3V D5.3V A12V Vscan 18V-AMP D5.3V Vset 18V-AMP D12V RTN-AMP PS_ON PS_ON RTN-AMP VS_ON STB-5V STB-5V FAN_ON FAN_D CN5(DC-DC SMPS) ↔ CN2710(F-Buffer) Pin No. Signal D5.3V Samsung Electronics...

  • Page 53: Partial Block Diagram

    Block Diagram 7-2 Partial Block Diagram 7-2-1 Audio/Video Signal Block Diagram Display Panel 1024*768 Samsung Electronics...
  • Page 54 Vs Input Part Vscan Output Rectification Transformer Block Auxiliary Control Power Feedback Switching Block Block Vset Output Rectification Transformer Block (175~210) Auxiliary Control Power Feedback Switching Block Block Ve Output Rectification Transformer Block Auxiliary Control Power Feedback Switching Block Block Samsung Electronics...
  • Page 55 Block Diagram 7-2-4 Module Driver Board Block Diagram 1. Y Main Board 2. X Main Board Samsung Electronics...
  • Page 56 THERMAL CLK A, B CLK A, B CLK A, B DATA BLK, POL, STB, CSE BLK, POL, STB, CSE BLK, POL, STB, CSE 50pin Connector FM75 50pin Connector 50pin Connector 7-2-6 Main Board Block Diagram i t l Samsung Electronics...
  • Page 57 A DIO_ I R H t n o r l 2 MHz E T_ P L ENC D STEM T_F A ITS , U M _DIR, D t a a EM_ I R , CTS, , R DCD Samsung Electronics...
  • Page 58 MEMO Samsung Electronics...

  • Page 59: Chapter 9 Pcb Diagram

    ③ FRC IC DNIe Image enhancement IC ④ DOCS403ZH261B (S) TUNER Tuner CH Tuning ⑤ STA323W IC AUDIO-AMP Audio power amplifiers Samsung Electronics...
  • Page 60 Signal Pin No. Signal CN102(Main Board) CN101(Main Board) TXOUT2+ TXOUT0B- Pin No. Signal Pin No. Signal TXOUT0B+ 5.3V 6.5V TXOUT- TXOUT+ TXOUTCLK- TXCLKOUT+ SCL_G 18Vamp TXOUT- SDA_G 18Vamp TXOUT+ TXOUT3- RTN_amp TXOUT3+ PS_ON RTN_amp TXOUT2- STBY FAN_ON FAN_D Samsung Electronics...
  • Page 61 CH_VALID SPK_R- KEY_INPUT2 CH_CLK SPK_L+ ST5V SPK_L- D12V CH_DATA0 KEY_INPUT2 CH_DATA1 DTV_Y_G CH_DATA2 CH_DATA3 IR_7414 DTV_Pb_B CH_DATA4 DTV_Pr_R CH_DATA5 CH_DATA6 DTV_RtO CH_DATA7 DTV_SPDIF CH_ERROR RESET_IN CH_RST USB_VCC_ CHECK USBBN USBBP D12V IR_DTV DTV_CVBS DTV_LtO TxD_MICOM RxD_MICOM CH_SCL CH_SDA Samsung Electronics...

  • Page 62: Power & Ir Board

    9-3 Function Board Function Key. Located on the side of the unit. 9-4 Side AV Board Loc. No. Description CN102 S-VIDEO2 Input Jack ① CN103 AV2 Input Jack ② CN104 Earphone Jack ③ CN105 Side AV Connector ④ Samsung Electronics...

  • Page 63: Main Smps Board

    CN102(Main B'D) CN101(Main B'D) CN2005(Logic B'D) CN3(DC-DC SMPS) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal D5.3V 6.5V D5.3V D5.3V D5.3V A12V 18V-AMP D5.3V 18V-AMP D12V RTN-AMP PS_ON PS_ON RTN-AMP VS_ON STB-5V STB-5V FAN_ON FAN_D Samsung Electronics...

  • Page 64: Dc-Dc Smps Board

    ④ CN2(DC-DC SMPS) CN4(DC-DC SMPS) CN5(DC-DC SMPS) CN3(DC-DC SMPS) ↔ ↔ ↔ ↔ CN809(Main SMPS) CN5010(Y B'D) CN4004(X B'D) CN2710(F-Buffer) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal D5.3V D5.3V Vset Vscan D5.3V D5.3V Samsung Electronics...

  • Page 65: Pdp Module

    Y Lower Scan Board ⑤ ASSY PDP MODULE P-ADDRESS E BUFFER BN96-03363A Address E Buffer Board ⑥ ASSY PDP MODULE P-ADDRESS F BUFFER BN96-03364A Address F Buffer Board ⑦ ASSY PDP MODULE P-ADDRESS G BUFFER BN96-03365A Address G Buffer Board ⑧ Samsung Electronics...
  • Page 66 MEMO Samsung Electronics...

  • Page 67: Analog

    Schematic Diagram 10. Schematic Diagram 10-1 Analog 10-1-1 POWER This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-1...
  • Page 68 Schematic Diagram 10-1-2 MICOM This Document can not be used without Samsung’s authorization. Power MICOM Signal > - > - ( I - Samsung Electronics 10-2...
  • Page 69 Schematic Diagram 10-1-3 IN_OUT_JACK This Document can not be used without Samsung’s authorization. Power Signal Samsung Electronics 10-3...
  • Page 70 Schematic Diagram 10-1-4 HDMI This Document can not be used without Samsung’s authorization. Power Signal HDMI_INPUT 10-4 Samsung Electronics...
  • Page 71 Schematic Diagram 10-1-5 SOUND This Document can not be used without Samsung’s authorization. Power SOUND Signal Samsung Electronics 10-5...
  • Page 72 Schematic Diagram 10-1-6 SVP-PX This Document can not be used without Samsung’s authorization. Power Signal 10-6 Samsung Electronics...
  • Page 73 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 Signal Signal 10-1-8 FUNCTION This Document can not be used without Samsung’s authorization. Power...
  • Page 74 Schematic Diagram 10-1-10 FRC This Document can not be used without Samsung’s authorization. 10-8 Samsung Electronics...
  • Page 75 Schematic Diagram 10-1-11 FRC Memory This Document can not be used without Samsung’s authorization. Samsung Electronics 10-9...
  • Page 76 Schematic Diagram 10-1-12 LVDS This Document can not be used without Samsung’s authorization. Power Signal 10-10 Samsung Electronics...
  • Page 77 Schematic Diagram 10-1-13 DTV / TUNER / POWER This Document can not be used without Samsung’s authorization. Samsung Electronics 10-11...

  • Page 78: Digital

    Schematic Diagram 10-2 Digital 10-2-1 STI5517 LMI / EMI / POW1.8 This Document can not be used without Samsung’s authorization. 10-12 Samsung Electronics...
  • Page 79 Schematic Diagram 10-2-2 STi5517 VIDEO / AUDIO / GPIO This Document can not be used without Samsung’s authorization. d i l d i l Samsung Electronics 10-13...
  • Page 80 Schematic Diagram 10-2-3 MEMORY / EXTERNAL UART This Document can not be used without Samsung’s authorization. > 10-14 Samsung Electronics...
  • Page 81 Schematic Diagram 10-2-4 INTERNAL CI INTERFACE This Document can not be used without Samsung’s authorization. Samsung Electronics 10-15...
  • Page 82 Schematic Diagram 10-2-5 POW3.3 / CLK / RESET / AV OUT / EXT CONN This Document can not be used without Samsung’s authorization. k l i > - k l i > 10-16 Samsung Electronics...
  • Page 83 12-1-2 Separation of ASSY COVER P-REAR Part Name Description Description Photo Cover ① Remove 4 screws.( Rear : M8,L16,ZPC(BLK),SWRCH18A,WP ② Remove 14 screws.( : BH,+,B,M4,L12,ZPC(BLK) ③ Remove 4 screws.( : BH,+,S,M4,L10,ZPC(BLK) ④ Remove the ASSY COVER REAR. Samsung Electronics 12-1...
  • Page 84 12-1-5 Separation of FILTER-EMI AC LINE Part Name Description Description Photo Filter- ① Detach connector from Main SMPS. AC LINe ② Remove 2 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove a screw. : BH,+,S,M4,L10,ZPC(BLK) ④ Remove FILTER-EMI AC LINE. 12-2 Samsung Electronics...
  • Page 85 Description Description Photo Wall ① Remove 8 screws. Bracket : BH,+,B,M4,L12,ZPC(BLK) ② Remove 16 screws. : BH,+,S,M4,L10,ZPC(BLK) ③ Remove Wall Bracket. : Please lay the PDP panel face down on a soft surface when separating front cover. Samsung Electronics 12-3...
  • Page 86 ① Remove 4 screws. : BH,+,WP,B,M4.0,L12,ZPC(BLK),SWRCH18A,- ② Remove the Speaker. 12-1-10 Separation of ASSY BOARD P-POWER&IR Part Name Description Description Photo Power ① Remove 2 screw. & : BH,+,-,S,M4,L8,ZPC(BLK) IR Board ② Remove the Power & IR Board. 12-4 Samsung Electronics...
  • Page 87 12-1-12 Separation of ASSY PDP MODULE P-LOGIC MAIN BOARD Part Name Description Description Photo Logic ① Detach all connectors from the Logic Main Board. Board ② Remove 4 screws. : WSP,PH,+,M3,L8,NI PLT ③ Remove the Logic Main Board. Samsung Electronics 12-5...
  • Page 88 ※ To separate the Flat Cable of the X-Board, press the upper and the lower sides of the connector. X-Main ① Detach all Connectors from the X Main Board. Board ② Remove 6 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the X-Main Board. 12-6 Samsung Electronics...
  • Page 89 Y-Scan ① Remove 5 screws. : PH,+,WWP,M3,L8,NI PLT Connectors ① Separate the scan board from the Y-Main Board by detaching the 3 connectors and remove the Scan Boards. Samsung Electronics 12-7...
  • Page 90 Disassembly & Reassembly Part Name Description Description Photo Y-Main ① Detach all connectors from the Y-Main Board. Board ② Remove 8 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the Y-Main Board. 12-8 Samsung Electronics...
  • Page 91 ① Remove 4 screws. : PH,+,WWP,M3,L8,NI PLT ② Remove the still bar. Buffer ① Detach the all connectors from the buffer board. ② Remove 12 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the E-Board and F-Board and G-Board. Samsung Electronics 12-9...
  • Page 92 MEMO 12-10 Samsung Electronics...

  • Page 93: Ps50Q7Hdx/Xeu

    PS50C7HDX/XEU,D S.N.A T0448 BN96-03144F ASSY BRACKET P-TERMINAL 42C7HD,XEC,SECC S.N.A T0456 BN67-00173A GLASS-FILTER EMI 50" C7 No B/C,Mesh,T=44 T0603 BN64-00460A KNOB-DECORATION POWER 42P7,ABS,HB,AL S.N.A M0013 T0003 M0150 M0112 T0175 M0111 M0145 M0115 T0023 T0061 T0056 T0023 T0059 T0603 CIS7 Samsung Electronics...

  • Page 94: First Checklist For Troubleshooting

    - Check to see if the cables are connected according to the connection diagram. 2. Check the power input to the Main Board. 3. Check the voltage in and out between the SMPS ↔ Main Board, between the SMPS ↔ X, Y Main Board, and between the Logic Boards. Samsung Electronics...

  • Page 95: Checkpoints By Error Mode

    Is the Fuse (F101) of the Main SMPS Replace the Main SMPS Power Input Part blown? Check Main SMPS 804-1 Pin 10 : STB 5V = 5V Replace the Main SMPS Pin 8 : PS-ON = 0V Replace the Main Board Samsung Electronics...
  • Page 96 SMPS, CN of the X Main Board, and CN of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separating the power cord from the unit. Samsung Electronics...
  • Page 97 SMPS, CN of the X Main Board, and CN of the Y Main Board, a spark may be generated by the electric charge of the high capacity capacitor. Therefore, wait some time after separ ating the power cord from the unit. Samsung Electronics...
  • Page 98 Main Board and the speaker replace the cable, if necessary. properly connected? Is the output voltage of SMPS Replace the Main SMPS normal? (CN803 #5) Is the speaker output terminal Replace the Main Board of the Main Board normal? Replace the Speaker Samsung Electronics...
  • Page 99 - Check the tuner output signal (CVBS). - Check the power input of the Main board. Troubleshooting Procedures Is the antenna connection setting Configure properly properly configured? Check CN101 pin2 for +33V Replace the Main SMPS Replace the Main Board Samsung Electronics...
  • Page 100 * Please return back the broken Power Supply - It could be with difficulty finding the cause if you handle it first - Unless you return back it when the broken Power supply has only a little damage. it could make the other problem. Samsung Electronics...
  • Page 101 Some horizontal lines appear to be linked on screen Scan Buffer, FPC of X/Y Address Open Some vertical lines don't exist on screen Logic Main, Logic Buffer, TCP Address Short Some vertical lines appear to be linked on screen Logic Main, Logic Buffer, TCP Samsung Electronics...
  • Page 102 F5004 for VCC F4004 for VDD F5005 for OUT_L F4005 for Ve Q4002~Q4003 SHORT SHORT Q5009~Q5021 FET/ Q4011~Q4016 FET/ D5005, D5007 Replace the Board Replace the Board DIODE D4004 DIODE D5008 D4006~D4008 Y-MAIN X-MAIN Normal State Normal State Samsung Electronics...
  • Page 103 FUSE Replace the Board FUSE Replace the Board F5004 for VCC F4004 for VDD F5005 for OUT_L F4005 for Ve SHORT SHORT Q4002~Q4003 Q5009~Q5021 Replace the Board Replace the Board Q4011~Q4016 Y-MAIN X-MAIN Normal State Normal State 6-10 Samsung Electronics...
  • Page 104 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, Replace the Panel recheck the status There a defect on FPC Done (Defect is from Y-buffer) Samsung Electronics 6-11...
  • Page 105 Buffer Board and the Logic Main address data output section. Check the FFC connection status Check the detailed waveform Replace Logic Main / and control the signal waveform Address Buffer (E or F) / DONE Replace the Panel 6-12 Samsung Electronics...

  • Page 106: Troubleshooting Procedures By Ass'y

    13 ASSY BOARD P-POWER&IR BN96-03320A Power Button Board The remote control does not work properly, the LED does not work properly. 14 ASSY BOARD P-SIDE AV BN96-03075G Side AV Board The AV2 and S-VIDEO2 modes do not work properly Samsung Electronics 6-13...
  • Page 107 MEMO 6-14 Samsung Electronics...

  • Page 108: Product Features And Functions

    - 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. Samsung Electronics 11-1...

  • Page 109: Rear Panel

    S-Video RGB Video + Audio (L/R) Supported modes for HDMI/DVI and Component EXT 1 Only TV or DTV output is available. Output you can choose. EXT 2 480i 480p 576i 576p 720p 1080i HDMI/DVI 50Hz HDMI/DVI 60Hz Component 11-2 Samsung Electronics...

  • Page 110: Remote Control

    Teletext index 14 Remote control setup 10 Teletext hold 15 Selects a target device to be 11 Teletext size selection controlled by the Samsung 16 Teletext mode selection remote control (TV, DVD, (LIST/FLOF) STB, CABLE, VCR) 17 Teletext sub page...

  • Page 111: 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.
  • Page 112 ( ) 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 Wall panel bracket Samsung Electronics 11-5...
  • Page 113 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. 11-6 Samsung Electronics...

  • Page 114: Overall Wiring

    CN5502 LOGIC BOARD AC-INLET CN2010 CN2012 Y-BUFFER(LOW) CN5503 E-BUFFER F-BUFFER CN2608 G-BUFFER CN2510 CN2709 CN2710 DJ601 JA1501 CN102 CN103 CN1002 FUNCTION DIGITAL BOARD CN1003 DJ602 CN405 CN404 MAIN BOARD CN001 CN101 CN402 CN211 POWER SW SIDE AV SPEAKER Samsung Electronics...
  • Page 115 BN96-03392B 8ohm,Q7,10W,2Way 2speaker,Bass Reflex ⑮ ASSY BOARD P-SIDE AV BN96-03075G AUDI,SJ06-01-004G,SIDE-AV,500MM ASSY BOARD P-FUNCTION BN96-02784B CADILLAC,SJ06-01-006,FUNCTION,600MM, CORE FILTER-EMI AC LINE 2901-001340 250V,6A,-,-,50x22.5x37.2mm,BK,AE LEAD CONNECTOR-LVDS BN39-00477A D66A/SPD-50P4HD,UL20276#30,UL/CSA,31P,150mm,#30,GT121- LEAD CONNECTOR MD39-00074G V18C,UL1007#26,UL/CSA,12P,200mm,#26,SMH250-12,SMH250- LEAD CONNECTOR BP39-00053E HP-R4252,UL1007#26,UL/CSA,10P,200mm,#26,SMH250- LEAD CONNECTOR BN39-00632A HPR4252,UL1617#22,UL/CSA,12P/12P,80mm,BLK/WHT,#22,35156 Samsung Electronics...

  • Page 116: Partial Wiring

    ↔ CN3(DC-DC SMPS) CN5007(Y B'D) CN4000(X B'D) CN2710(F-Buffer) CN2005(Logic B'D) Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal Pin No. Signal D5.3V D5.3V D5.3V STD 5V Vs-ON D5.3V Vscan PS-ON Vset D5.3V D5.3V D5.3V Samsung Electronics...
  • Page 117 Wiring Diagram 8-2-2 Connect Cables ※ The code number of cable(Lead-connector) can be changed, see "5 Chapter. Electrical Part List." SMPS 12P LVDS 31P POWER 10P Code BN39-00632A BN39-00477A BP39-00053E Photo POWER 12P Code MD39-00074G Photo Samsung Electronics...
  • Page 118 Model : PS50Q7HDX/XEU SERVICE Manual PDP-TELEVISION FEATURES 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 ■ ■ PS-50Q7HD...
  • Page 119 © Samsung Electronics Co., Ltd. Jun. 2006 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea Any unauthorized use of Manual can be punished under applicable AA82-03775A International and/or domestic law.

  • Page 120: Safety Precautions

    Table of Contents Chapter 1 Precaution ■ 1-1 Safety Precautions ............1-1 ■...

  • Page 121: Chapter 10 Schematic Diagram

    Chapter 9 PCB Diagram ■ 9-1 MAIN & DTV MODULE Board ..........9-1 ■...

  • Page 122: Electrical Part List

    BN96-03362A ASSY PDP MODULE P-Y MAIN LOWWE 50HD,PL50 T1914 BN96-03363A ASSY PDP MODULE P-ADDRESS E BU 50HD,PL50 T1915 BN96-03364A ASSY PDP MODULE P-ADDRESS F BU 50HD,PL50 T1916 BN96-03365A ASSY PDP MODULE P-ADDRESS G BU 50HD,PL50 T1917 BN96-03366A ASSY PDP MODULE P-LOGIC MAIN B 50HD,PL50 Samsung Electronics...
  • Page 123 MEMO Samsung Electronics...

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