Related Manuals for Samsung PS50Q91HX
Summary of Contents for Samsung PS50Q91HX
- Page 1 1. Precaution 2. Product Specification 3. Disassembly & Reassembly 4. Troubleshooting 5. Exploded View & Part List 6. Wiring Diagram 7. Schematic Diagram PS-50Q91H Refer to the service manual in the GSPN (see the rear cover) for the more information.
- Page 2 Mideast & Africa mea.samsungportal.com © Samsung Electronics Co., Ltd. Apr. 2007 This Service Manual is a property of Samsung Electronics Co.,Ltd. Printed in Korea Any unauthorized use of Manual can be punished under applicable AA82-04398A International and/or domestic law.
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Page 3: Table Of Contents
■ 5-1 PS50Q91HX/XEC Exploded View ........ -
Page 4: Safety Precautions
When Check the AC power cord for possible damages. Keep voltage exceeds the specified limits, check each special the part or the lead away from any heat-emitting part. materials. Samsung Electronics... - Page 5 Critical safety parts should be bracketed with ( Use only regular parts for replacements (in particular, flame resistance and dielectric strength specifications). Irregular parts or materials may cause electric shock or fire. Samsung Electronics...
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Page 6: Servicing Precautions
AC source and turn the switch on. Connect the insu- lating resistance meter (500v) to the AC plug blade. The insulating resistance between the blade of the AC plug and that of the conductive material should be more than 1 ㏁. Samsung Electronics... -
Page 7: Static Electricity Precautions
These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Samsung Electronics... -
Page 8: Installation Precautions
5. Make sure to turn the power off and unplug the power cord from the outlet before repositioning the product. Also check the antenna cable or the external connectors if they are fully unplugged. Damage to the cord may cause fire or electric shock. Samsung Electronics... - Page 9 MEMO Samsung Electronics...
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Page 10: Product Specification
Product Specification 2. Product Specification 2-1 Product Specification Features Block Specification Major IC Remark Tuner TCPW3001PD32S SEMCO PDP Module Samsung SDI W2A 42"HD/50"HD SAMSUNG SDI Power Input Voltage: AC 100~240V, 50/60Hz Scaler Video SVP-UX68 Video Decoder Sound AMP NTP3000 Neo Fidelity... -
Page 11: New Features Explanation
Product Specification New Features explanation ■ ■ - Anynet+ : Anynet+ is an AV network system that enables you to control all connected Samsung AV devices with your Samsung TV's remote. To directly connect to TV Connect the [HDMI 1], [HDMI... -
Page 12: Specifications Analysis
1 Input 1 Input 1 Input Connections HDMI 3 Input 3 Input 2 Input Scart 2 Input 2 Input 2 Input Optical Coaxial ※ For the power supply and power consumption, refer to the label attached to the product. Samsung Electronics... -
Page 13: Accessories
Batteries 4301-000103 Power Cord 3903-000145 Owner's Instructions BN68-01171Q Warranty Card BN68-00514C Registration Card AA68-03575A Safety Guide Manual AA68-03242E Samsung Service center Cloth-Clean BN63-01798A Ferrite Core for 3301-001110 Earphone/Power Cord Ferrite Core for 3301-001305 S-VIDEO/Power Cord Cover-Bottom BN63-03055A Screws (2ea) 6003-001621... - Page 14 Product Specification Accessories Item Item code Remark PC Cable BN39-00115A 1830mm PC Audio Cable Electronics Store/ BN39-00061B 2000mm Internal shopping mall Antenna Cable BN39-00333A 3000mm Samsung Electronics...
- Page 15 MEMO Samsung Electronics...
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Page 16: 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 17: Checkpoints By Error Mode
Is the Fuse (F801S) of the SMPS ① Replace Fuse (F801S) Power Input Part blown? SMPS CN801 ② Pin 3 : STB 5V Replace the SMPS Pin 2 PS-ON : Check to see if it is 0V Replace the Main Board Samsung Electronics... - Page 18 MAIN SMPS, CN4701 OF THE X MAIN BOARD, AND CN5707 OF THE Y MAIN BOARD, A SPARK MAY BE Caution GENERATED BY THE ELECTRIC CHARGE OF THE HIGH CAPACITY CAPACITOR. THEREFORE, WAIT SOME TIME AFTER DISCONNECTING THE POWER CORD FROM THE UNIT. Samsung Electronics...
- Page 19 MAIN SMPS, CN4701 OF THE X MAIN BOARD, AND CN5707 OF THE Y MAIN BOARD, A SPARK MAY BE Caution GENERATED BY THE ELECTRIC CHARGE OF THE HIGH CAPACITY CAPACITOR. THEREFORE, WAIT SOME TIME AFTER DISCONNECTING THE POWER CORD FROM THE UNIT. Samsung Electronics...
- Page 20 Is the output voltage of SMPS normal? ② (CN801 #13) Replace the SMPS Is the speaker output terminal of the Main Board normal? Replace the Main Board ③ Replace the Speaker Samsung Electronics...
- Page 21 - Check the CVBS cable connection. - Check the power input of the Main board. Troubleshooting Procedures Is the antenna connection setting properly configured? Configure properly ① Check CN1101 pin2 for +33V Replace the SMPS Replace the Main Board Samsung Electronics...
- Page 22 Abnormal Check the SUB2, QX801,QX802 Check the 5.3V : ICX808, QX806 Abnormal Multi : ICX803 : ICX805 18Vamp : ICX804 Normal VS-ON Abnormal Check the SUB1,QS801,QS802 Normal Check the Other board (Image Board or Driver Board) or Cable. Samsung Electronics...
- Page 23 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 24 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 25 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 4-10 Samsung Electronics...
- Page 26 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 is a defect on the FPC Done (Defect is from Y-buffer) Samsung Electronics 4-11...
- Page 27 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 4-12 Samsung Electronics...
- Page 28 - Check the version of each program - Replace the Main board A blank upper (or lower) block Upper/Lower Y Buffer defect appears on the screen. - Replace the corresponding upper/lower buffers (E, F) Samsung Electronics 4-13...
- Page 29 - Adjust the SMPS voltage according to the voltage printed on the module label Dim screen (blurred in red) X-Main board defect - Replace the X-Main board A blank screen appears - Replace the Y-Main board 4-14 Samsung Electronics...
- Page 30 The side function key does not work properly 10 ASSY BOARD P-POWER&IR The remote control does not work properly, the LED does not work properly. 11 ASSY BOARD P-SIDE AV The AV2 and S-VIDEO2 modes do not work properly <PDP 42”> <PDP 50”> Samsung Electronics 4-15...
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Page 31: Adjustment
① Write down the value of HDMI White Balance of Factory Mode before replacing Board. ② PDP Option of Factory Mode → set the Factory Data Type item as the suitable value of relevant model. ③ Set the value of HDMI White Balance with the value written down before. 4-16 Samsung Electronics... - Page 32 ※ 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 4-17...
- Page 33 1 ~ 99 Power On Volume 1 ~ 100 Max Volume 1 ~ 100 Local Key Lock ON / OFF Power On Source RF/Ext.1... Shop Mode ON / OFF Color Space ON / OFF PC Ident ON / OFF 4-18 Samsung Electronics...
- Page 34 00 ~ 1FH V2Gain 00 ~ 1FH V4Gain 00 ~ 1FH Sr2Gain 00 ~ 1FH Sr4Gain 00 ~ 1FH Sl2Gain 00 ~ 1FH Sl4Gain 00 ~ 1FH Peakth1 00H ~ FFH Peakth2 00H ~ FFH Peskth3 00H ~ FFH Samsung Electronics 4-19...
- Page 35 Black Level 00H ~ FFH Svp Brightness 00H ~ FFH ⑥ Calibration Target Item Range high Delta AV ADC 00H ~ FFH COMP ADC 00H ~ FFH PC ADC 00H ~ FFH ALL RGB 00H ~ FFH 4-20 Samsung Electronics...
- Page 36 0 / 1 INV_BIT_EXPAND 0 / 1 REPEAT_MODE 0 / 1 DEMO_ON_OFF 0 / 1 MMU_RD_START 00H ~ FFH ME_RD_START 00H ~ FFH MC_RD_START 00H ~ FFH CMZL(0x36E) 00H ~ FFH BLOL(0x2A7) 00H ~ FFH LOGO(0x2A7) 00H ~ FFH Samsung Electronics 4-21...
- Page 37 0 ~ 255 M Skin Tu 0 ~ 255 M Skin TV 0 ~ 255 Sub Color 0 ~ 255 M-Au-Sub Color 0 ~ 255 M-Wi-Sub Color 0 ~ 255 MW-Skin-Tu 0 ~ 255 MW-Skin-Tv 0 ~ 255 4-22 Samsung Electronics...
- Page 38 RF NTSC 3.58 00H ~ FFH RF NTSC 4.43 00H ~ FFH AV PAL 00H ~ FFH AV SECAM 00H ~ FFH AV NTSC 3.58 00H ~ FFH AV NTSC 4.43 00H ~ FFH AV PAL60 00H ~ FFH Samsung Electronics 4-23...
- Page 39 Magazine LNA ON / OFF PixelShift Test ON / OFF Debug ON / OFF ON / OFF D-Watchdog ON / OFF MAIN / IDTV / PDP Lvds ON UART Select / PDP Lvds /OFF 9. I2C Check 4-24 Samsung Electronics...
- Page 40 Range Initial value Spectrum ON / OFF Delta -128 ~ +128 Positive 0 ~ 99 Negative 0 ~ 99 Speed 0 ~ 7 Time 0 ~ 7 FBE Spectrum ON / OFF FEE Delta 0 ~ 5 Samsung Electronics 4-25...
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Page 41: Service Adjustment
2) Select "AV CALIBRATION" again in CALIBRATION 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 ) 4-26 Samsung Electronics... - Page 42 H/L : 270/280 +/- 2 L/L : 270/280 +/- 3, 2.1 Ft +/-0.05 Ft ( SAMSUNG WHITE BALANCE Adjustment PATTERN with FPD ) ■ Conditions for Measurement 1. On the basis of toshiba ABL pattern : High Light level (57 IRE)
- Page 43 - 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 44 ASSY PDP MODULE P-ADDRESS E BUFFER ASSY PDP MODULE P-ADDRESS F BUFFER ASSY BOARD P-SIDE A/V ※ When replacing the SMPS or PDP panel, you have to check the voltage printed on the panel sticker and adjust it. Samsung Electronics 4-29...
- Page 45 (If you do not adjust the voltage, an abnormal discharge symptom may appear.) Value Board Adjustment Vset SMPS Vscan -190 SMPS Voltage Label 2. A point of adjusting SMPS-MAIN voltage. Vs Adjustment Vs Test point Va Test point Va Adjustment 4-30 Samsung Electronics...
- Page 46 Troubleshooting Y-RR and Y-FR controls ■ ■ Test Point Set the main reset (rising : 60usec, falling : 80usec) by change the value of variable resistor. 60usec 80usec Rising ramp variable resistor Falling ramp variable resistor Samsung Electronics 4-31...
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Page 47: Upgrade
2) Select MOT file by Open ② 3) Click Connect Button ③ 4) Turn On the Set 5) Click ④ 3. Turn off (= AC Power off) the Set (waiting a few seconds) and turn on again. S/W Down Load Time: 6min 4-32 Samsung Electronics... - Page 48 4. SVP-UX 10. W/B MOVIE 5. Option Block 11. Checksum 6. SGTV5810/NTP3000 12. Reset 13. Spread Specturm S/W Version T-CALMPEUH-xxxx (Main Micom Ver) T-BDPMPEUS-xxxx BORD2_CALLA_TR-xxxx (TR Ver) Month / Day / Year / Hour / Min. / Sec. Samsung Electronics 4-33...
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Page 49: Overall Wiring
CN5409 CN2006 CN2001 CN2000 CN5412 CN5502 CN5701 CN2002 CN2003 LOGIC BOARD CN2028 CN2004 AC-INLET CN5503 E-BUFFER F-BUFFER CN2509 CN2500 CN2600 CN2609 CN2610 CN2510 CN2202 FUNCTION CN1101 CN1404_SIDE MAIN BOARD CN1605 CN101 CN1606 CN1203 SIDE AV POWER SW SPEAKER Samsung Electronics... - Page 50 CN2001 CN2000 CN2006 CN2003 CN5502 CN5701 CN2002 CN2005 LOGIC BOARD CN2004 Y-MAIN SCAN(LOW) AC-INLET CN5503 E-BUFFER F-BUFFER CN2509 CN2500 CN2600 CN2609 CN2610 CN2510 CN2202 CN1404_SIDE CN1101 FUNCTION MAIN BOARD CN1605 CN101 CN1606 CN1203 SIDE AV POWER SW SPEAKER Samsung Electronics...
- Page 51 ※ The code number of cable(Lead-connector) can be changed, see "5. Exploded View & Part List." ① LVDS 31P-30P ② POWER 24P ③ Flat Cable 42" - BN96-05164A Code BN39-00859A BN39-00881A 50" - BN96-05176A Photo ④ AC_INPUT 42" - 2901-001378 Code 50" - 2901-001340 Photo Samsung Electronics...
- Page 52 Signal Pin No. Signal Pin No. Signal Pin No. Signal TXC- VIDEO_SR_IN TX2+ VIDEO_SL_IN TX2- MICOM_CEC HP_IDENT SVHS_IDENT HP_OUT_R TX1+ TSCL SVHS_Y HP_OUT_L TX1- TSDA USB_VCC LSCL SVHS_C B1.8V TX0+ HDMI3_5V B3.3V TX0- HPD_SIL9185 VIDEO_IDENT DDC_WP VIDEO_CVBS TXC+ Samsung Electronics...
- Page 53 KEY_INPUT2 5.3V 5.3V LED_CTRL ⑨ ⑩ ⑪ CN1203(MAIN B'D) CN1605(MAIN B'D) CN800(SMPS) ↔ ↔ ↔ SPEAKER FUNCTION AC INLET Pin No. Signal Pin No. Signal Pin No. Signal R+_OUT KEY_INPUT1 AC Neutral R-_OUT KEY_INPUT2 L+_OUT AC Live L-_OUT Samsung Electronics...
- Page 54 CN2609 CN2609 SMPS and F-Buffer Connect CN1101 CN1101 SMPS and Main Board Connect CN2202 CN2202 Main Board and Logic Board Connect CN1605 CN1605 Function Assy and Main Board Connect CN1404 CN1404 Side AV Assy and Main Board Connect Samsung Electronics...
- Page 55 CN1606 CN1606 Power SW Assy and Main Board Connect CN1203 CN1203 Speaker and Main Board Connect CN101 CN101 Side AV Assy and Main Board Connect Function Assy and Main Board Connect Power SW Assy and Main Board Connect Samsung Electronics...
- Page 56 MEMO Samsung Electronics...
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Page 57: Circuit Description
Connects to the Y terminal block, 1) provides maintaining voltage waveform (including ERC), 2) provides Y Rising, Falling Ramp waveforms, and 3) maintains the Vscan bias. ■ Address Buffer Board It delivers the data signal and control signal to the TCP. Samsung Electronics... - Page 58 MEMO Samsung Electronics...
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Page 59: Schematic Diagram
Schematic Diagram 7-2 Schematic Diagram 7-2-1 Power This Document can not be used without Samsung’s authorization. Power Samsung Electronics... - Page 60 Schematic Diagram 7-2-2 Sound Processing This Document can not be used without Samsung’s authorization. Power Samsung Electronics...
- Page 61 Schematic Diagram 7-2-3 Input & Output Jack I (Normal) This Document can not be used without Samsung’s authorization. Power & c t i Samsung Electronics...
- Page 62 Schematic Diagram 7-2-4 Input & Output Jack II (Option) This Document can not be used without Samsung’s authorization. Power " 0 " 0 " 0 & Samsung Electronics...
- Page 63 Schematic Diagram 7-2-5 MICOM This Document can not be used without Samsung’s authorization. Power ! ! ! Samsung Electronics...
- Page 64 Schematic Diagram 7-2-6 SVP-UX (Scaler) This Document can not be used without Samsung’s authorization. Power Samsung Electronics...
- Page 65 Schematic Diagram 7-2-7 DDR & Tuner This Document can not be used without Samsung’s authorization. Power > - > - Samsung Electronics...
- Page 66 3-1-2 Separation of ASSY PCB MISC-MAIN Part Name Description Description Photo Main ① Detach all connectors from the Main Board Board. ② Remove 4 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the Main Board. Samsung Electronics...
- Page 67 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. 3-1-4 Separation of BRACKET-PCB Part Name Description Description Photo Bracket ① Remove a screw. : BH,+,S,M4,L10,ZPC(BLK) ② Remove the BRACKET-PCB. Samsung Electronics...
- Page 68 : BH,+,B,M4,L3,ZPC(BLK) ③ Remove Bracket. 3-1-6 Separation of ASSY BOARD P-SIDE AV Part Name Description Description Photo Side AV ① Remove a screw. ( : BH,+,B,M4,L3,ZPC(BLK) ② Remove a screw. ( : BH,+,S,M4,L10,ZPC(BLK) ③ Remove the Side AV. Samsung Electronics...
- Page 69 50" ① Remove 2 screws. ( Wall : BH,+,B,M4,L3,ZPC(BLK) Bracket ② Remove 6 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...
- Page 70 : BH,+,WP,B,M4.0,L3,ZPC(BLK), SWRCH18A ② Remove the Speaker. 3-1-9 Separation of ASSY BOARD P-POWER&IR Part Name Description Description Photo Power ① Detach all connectors from the & Power&IR Board. IR Board ② Remove the Power&IR PCB unlocking the 2 holders. Samsung Electronics...
- Page 71 ② Remove 8 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the SMPS. : Wear gloves when handling the power board as there may be some remaining electrical charge in the capacitor. Specifically, avoid touching any part of the capacitor. Samsung Electronics...
- Page 72 ② Remove 4 screws. : WSP,PH,+,M3,L8,NI PLT ③ Remove the Logic Main Board. 50" ① Detach all connectors from the Logic Logic Main Board. Board ② Remove 4 screws. : WSP,PH,+,M3,L8,NI PLT ③ Remove the Logic Main Board. Samsung Electronics...
- Page 73 X-Board, press the upper and the lower sides of the connector. 42" ① Remove 4 screws. X-Main : PH,+,WWP,M3,L8,NI PLT Board ② Remove the X-Main Board. 50" ① Remove 4 screws. X-Main : PH,+,WWP,M3,L8,NI PLT Board ② Remove the X-Main Board. Samsung Electronics...
- Page 74 Flat Cable ① Detach the 6 scan board connectors from the panel by pulling the holder from both the top and bottom ends. 42" ① Remove 3 screws. Y-Scan : PH,+,WWP,M3,L8,NI PLT Board 50" ① Remove 5 screws. Y-Scan : PH,+,WWP,M3,L8,NI PLT Board Samsung Electronics...
- Page 75 Description Photo 42" ① Remove 4 screws. Y-Main : PH,+,WWP,M3,L8,NI PLT Board ② Detach all connectors from the Y-Main Board. 50" ① Remove 4 screws. Y-Main : PH,+,WWP,M3,L8,NI PLT Board ② Detach all connectors from the Y-Main Board. 3-10 Samsung Electronics...
- Page 76 ② Remove 3 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the E-Board and F-Board. 50" ① Detach the all connectors from the Buffer buffer board. Board ② Remove 14 screws. : PH,+,WWP,M3,L8,NI PLT ③ Remove the E-Board and F-Board. Samsung Electronics 3-11...
- Page 77 ② Remove 4 screws. ( : BH,+,S,M4,L10,ZPC(BLK) ③ Remove the Side Panel Brackets. 3-1-16 Separation of ASSY PCB FUNCTION Part Name Description Description Photo Function ① Remove 2 screws. Board : BH,+,B,M4,L3,ZPC(BLK) ② Remove the Function Board. 3-12 Samsung Electronics...
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Page 78: Ps50Q91Hx/Xec Exploded View
Exploded View & Part List 5. Exploded View & Part List 5-1 PS50Q91HX/XEC Exploded View Samsung Electronics... - Page 79 S.N.A T0044 BN96-04775A ASSY PDP MODULE P 50HD W2A,M1,W2A,1365*7 T0056 BN63-03057A COVER-DECORATION 50Q9,ABS SF-0507,HB S.N.A T0074 BN59-00602A REMOCON BORDEAUX PLUS,TM87C,samsung T0079 BN94-01217B ASSY PCB MISC-MAIN PS50Q91H,PS50Q92H,EU, T0175 BN96-04703A ASSY SPEAKER P 8ohm,P9 Q9,15W,4P connect T0268 3903-000145 CBF-POWER CORD DT,EU,FP3/YES,U(IEC C13-R...
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Page 80: Ps50Q91Hx/Xec Service Item
Exploded View & Part List 5-2 PS50Q91HX/XEC Service Item ※ This is the list which is available to repair the real material at the time of service. Loc. No. Code No. Description Specification Q'ty Remark M0013 BN96-04711A ASSY COVER P-REAR...