Panasonic TH-C50HD18 Service Manual
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Panasonic TH-C50HD18 Service Manual

Panasonic TH-C50HD18 Service Manual

50inch class 720p plasma hdtv
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50inch Class 720p Plasma HDTV
TH-C50HD18
Model No.
GPH11DU Chassis
© 2008 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
ORDER NO. MTNC080425CE
B34 Canada: B07

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Summary of Contents for Panasonic TH-C50HD18

  • Page 1 ORDER NO. MTNC080425CE B34 Canada: B07 50inch Class 720p Plasma HDTV TH-C50HD18 Model No. GPH11DU Chassis © 2008 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribu- tion is a violation of law.

  • Page 2: Safety Precautions

    1 Safety Precautions 1.1. General Guidelines 1. When conducting repairs and servicing, do not attempt to modify the equipment, its parts or its materials. 2. When wiring units (with cables, flexible cables or lead wires) are supplied as repair parts and only one wire or some of the wires have been broken or disconnected, do not attempt to repair or re-wire the units.

  • Page 3: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices

    2 Warning 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec- trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor [chip] components.

  • Page 4: About Lead Free Solder (Pbf)

    2.2. About lead free solder (PbF) Note: Lead is listed as (Pb) in the periodic table of elements. In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder. The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu). That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.

  • Page 5: Service Navigation

    3 Service Navigation 3.1. Service Hint Board Name Function Board Name Function Power Supply Data Driver (Lower Right) P-Board should be exchanged for service. Data Driver (Lower Center) DC-DC Converter Data Driver (Lower Left) Speaker out, Sound Processor Scan Drive AV Terminal, AV Switch Scan out (Upper) Digital Signal Processor, Micon, HDMI Interface...

  • Page 6: Applicable Signals

    3.2. Applicable signals * Mark: Applicable input signal for Component (Y, PB, PR) and HDMI horizontal frequency (kHz) vertical frequency (Hz) COMPONENT HDMI 525 (480) / 60i 15.73 59.94 525 (480) /60p 31.47 59.94 750 (720) /60p 45.00 59.94 1,125 (1,080) /60i 33.75 59.94 1,125 (1,080)/60p...

  • Page 7: Specifications

    4 Specifications Power Source AC 120 V, 60 Hz Power Consumption Maximum 497 W Standby condition 0.2 W Plasma Display panel Drive method AC type Aspect Ratio 16:9 Visible screen size 50 inch class (49.9 inches measured diagonally) (W × H × Diagonal) 43.5 inch ×...

  • Page 8: How To Enter Into Service Mode

    5 Service Mode 5.1. How to enter into Service Mode While pressing [VOLUME ( - )] button of the main unit, press [INFO] button of the remote control three times within 2 seconds. 5.1.1. Key command [1] button...Main items Selection in forward direction [2] button...Main items Selection in reverse direction [3] button...Sub items Selection in forward direction [4] button...Sub items Selection in reverse direction...

  • Page 9: Contents Of Adjustment Mode

    Contents of adjustment mode 5.1.2. • Value is shown as a hexadecimal number. • Preset value differs depending on models. • After entering the adjustment mode, take note of the value in each item before starting adjustment. Main item Sub item Sample Data Remark ADJUST...

  • Page 10: Service Tool Mode

    5.2. Service tool mode 5.2.1. How to access 1. Select [SRV-TOOL] in Service Mode. 2. Press [OK] button on the remote control. 5.2.2. Display of SOS History SOS History (Number of LED blinking) indication. From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment. This indication except 2nd and 1st occurrence after shipment will be cleared by [Self-check indication and forced to factory ship- ment setting].

  • Page 11: Hotel Mode

    5.3. Hotel mode 1. Purpose Restrict a function for hotels. item Function 2. Access command to the Hotel mode setup menu Mode Select hotel mode ON/OFF In order to display the Hotel mode setup menu, please Input Select input signal modes. enter the following command (within 2 second).

  • Page 12: Troubleshooting Guide

    6 Troubleshooting Guide Use the self-check function to test the unit. 1. Checking the IIC bus lines 2. Power LED Blinking timing 6.1. Check of the IIC bus lines 6.1.1. How to access Self-check indication only: Produce TV reception screen, and while pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control for more than 3 seconds.

  • Page 13: Power Led Blinking Timing Chart

    6.2. Power LED Blinking timing chart 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinks of the Power LED on the front panel of the unit.
  • Page 14 6.3. No Power First check point There are following 2 states of No Power indication by power LED. 1. No lit 2. Red is lit then turns red blinking a few seconds later. (See 6.2.)
  • Page 15 6.4. No Picture...

  • Page 16: Local Screen Failure

    6.5. Local screen failure Plasma display may have local area failure on the screen. Fig-1 is the possible defect P.C.B. for each local area. Fig-1...

  • Page 17: Remove The P-Board

    7 Disassembly and Assembly Instructions 7.1. Remove the Back cover 7.4. Remove the A-Board unit 1. See Service Hint (Section 3) 1. Unlock the cable clampers to free the cable. 2. Disconnect the connectors (A1, A7, A12, A25, A51 and 7.2.

  • Page 18: Remove The Su-Board

    7.6. Remove the SU-Board 1. Remove the flexible cables (SU1, SU2, SU3 and SU4) connected to the SU-Board. 2. Remove the flexible cable (SU11-SD11) and the bridge connector (SC41-SU41). 3. Remove the molding prop (×1 4. Remove the screws (×4 ) and remove the SU-Board.

  • Page 19: Remove The Ss3-Board

    7.9. Remove the SS2-Board 1. Disconnect the connector (SS02) and disconnect the flex- ible cable (SS52). 2. Remove the screws (×2 ) and remove the SS2-Board. 7.10. Remove the SS3-Board 1. Disconnect the connector (SS03) and disconnect the flex- ible cable (SS57). 2.
  • Page 20 7.13. Remove the C1-Board 7.16. Remove the Front bracket 1. Remove the A-Board unit. (See section 7.4.) 1. Unlock the cable clampers to free the cable. 2. Remove the Stand bracket L. (See section 7.12.) 2. Disconnect the connectors (A51 and A52). (See section 3.

  • Page 21: Remove The Speakers

    10. Disconnect the connector (G51) and remove the G- screws (×8 Board. 7.18. Remove the Speakers 1. Disconnect the relay connectors 2. Remove the screws (×4 each) and remove the Speaker (L, R). 3. For leaving the plasma panel from the front frame, pull the bottom of the cabinet assy forward, lift, and remove.

  • Page 22: Remove The S-Board

    of the table (covered by a soft cloth), with the plasma panel surface facing downward. 2. Attach the C1-Board, C2-Board and the C3-Board, con- nect the flexible cables (×11) from the plasma panel to the C1-Board, C2-Board and the C3-Board, and fit the flexi- ble cable holders.

  • Page 23: Measurements And Adjustments

    8 Measurements and Adjustments 8.1. Adjustment Procedure 8.1.1.2. Adjustments Adjust driver section voltages referring the panel data on the 8.1.1. Driver Set-up panel data label. Check or adjust the following voltages with the multimeter. 8.1.1.1. Item / Preparation 1. Input a white signal to plasma video input. Name Test Point Voltage...
  • Page 24 8.1.2. Initialization Pulse Adjust 1. Input the White signal to plasma video input. 2. Set the picture controls as follows. Picture menu : Vivid Normal : Set Aspect : Full 3. Connect Oscilloscope to TPSC1 (SC). Check the voltage (T2) at 100μs period on the down slop. Test point Volume Level...
  • Page 25 8.1.4. Adjustment Volume Location 8.1.5. Test Point Location...

  • Page 26: White Balance Adjustment

    8.2. Adjustment 8.2.1. White balance adjustment Name of measuring instrument Connection Remarks • W/B pattern Component input • Color analyzer Panel surface (Minolta CA-100 or equivalent) Procedure Remarks • Ensure aging is adequate. • Make sure the front panel to be used on the final set is fitted. •...

  • Page 29: Block Diagram

    P6,P7 DCDC DCDC F+15V F+15V +5V(S) +15V(S) +3.3V(S) SUB+5V SUB+3.3V +15V(SND) DCDC +1.2V(S) DCDC POWER SWITCH SUB+1.2V +5V(STB) +9V(S) SUB+9V +1.8V(S) SUB+1.8V DIGITAL SIGNAL PROCESSOR +5V(S) +30V(BT) BT+30V +9V(S) STB+3.3V +5V(STB) +3.3V(STB) TH-C50HD18 TH-C50HD18 Block Diagram (1/5) Block Diagram (1/5)
  • Page 30 SOS8_SS SUSTAIN CONTROL SUSTAIN CONTROL VIDEO DATA SCAN OUT (LOWER) DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DATA DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER DRIVER TH-C50HD18 TH-C50HD18 Block Diagram (2/5) Block Diagram (2/5)
  • Page 31 SD CARD IIC0 CLOCK CLOCK GEN GS SD CARD SLOT SD CARD SD DATA IC8502 IIC1 RESET NOR FLASH IIC2 SBI2 CPU BUS I/F SBO2 IIC_IF EEPROM IC8001 IIC3 IC8503 Peaks Lite2p TH-C50HD18 TH-C50HD18 Block Diagram (3/5) Block Diagram (3/5)
  • Page 32 RECEIVER SERIAL SW IIC1 REMOTE IN SUB+5V DET REMOTE IN TEMP SENSOR +3.3V(STB) SUB+9V DET KEYSCAN3 KEYSCAN3 SW2500 POWER SWITCH POWER LED POWER SWITCH REMOTE RECEIVER FOR FACTORY USE FOR FACTORY USE TH-C50HD18 TH-C50HD18 Block Diagram (4/5) Block Diagram (4/5)
  • Page 33 IC14961-63 D607 5V_F_A SCAN CONTROL F002 F001 PHOTO COUPLER VSCN TPSOS7 T8AH 250V T8AH 250V Q16875,79 D16718 D16717 16V_F VSET COLD COLD ERROR DET VSET (LED:7TIMES) (LED:7TIMES) SCAN OUT (LOWER) AC CORD TH-C50HD18 TH-C50HD18 Block Diagram (5/5) Block Diagram (5/5)

  • Page 35: Wiring Connection Diagram

    10 Wiring Connection Diagram 10.1. Caution statement. Caution: Please confirm that all flexible cables are assembled correctly. Also make sure that they are locked in the connectors. Verify by giving the flexible cables a very slight pull. 10.2. Wiring (1)
  • Page 36 10.3. Wiring (2)

  • Page 37: Exploded View And Replacement Parts List

    13 Exploded View and Replacement Parts List 13.1. Exploded View and Mechanical Replacement Parts List 13.1.1. Exploded View...
  • Page 38 13.1.2. Accessories...

  • Page 39: Mechanical Replacement Parts List

    13.1.3. Mechanical Replacement Parts List...
  • Page 40 Ref. Safety Part No. Part Name & Description Q'ty Remarks 10030-0042000 BATTERY COVER 1 PAVCA EAS16S06A SPEAKER J0KD00000071 FERRITE CORE K1RYYYA00016 F-TYPE (5C) K2CG3YY00029 AC CORD(USA) 1 PAVCA MD50H11A1J PLASMA DISPLAY PANEL N2QAYB000221 REMOTE CONTROL 1 PAVCA TBLA3615 STAND POLE REFT TBLA3614 STAND POLE LIGHT TBLX0037...
  • Page 41 Ref. Safety Part No. Part Name & Description Q'ty Remarks TMZX5135 STAND BRACKET LEFT 1 PAVCA TMZX5136 STAND BRACKET RIGHT 1 PAVCA TPD169487 JOINT TPEB331 BAG (PEDESTAL STAND) TPEB340 SCREW BAG (STAND-TV) TPEH273 TOP PROTECT SHEET TQB2AA0796 INSTRUCTION BOOK(ENG/FRE/SPA) 1 PAVCA TQZH983 SCREW USE HANDBILL TSXL518...

  • Page 42: Electrical Replacement Parts List

    13.2. Electrical Replacement Parts List 13.2.1. Replacement Parts List Notes...
  • Page 43 13.2.2. Electrical Replacement Parts List Safety Ref. No. Part No. Part Name & Pcs Remarks Description Safety Ref. No. Part No. Part Name & Pcs Remarks C2181 F1G1E103A123 C 0.010UF, K, Description C2186 F1G1C104A116 C 0.10UF, K, 16V K1KA06A00508 6P CONNECTOR C2187 F1H0J2250008 C 2.2UF, K, 16V K1KY22A00003 22P CONNECTOR...
  • Page 44 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C3007 F1J1A106A043 C 0.010UF, K, C4533 F1G1H680A731 C 68UF, 50V C4534 F1G1C104A116 C 0.10UF, K, 16V C3008 F1J1A106A043 C 0.010UF, K, C4535 F1G1C104A116 C 0.10UF, K, 16V C4547...
  • Page 45 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C4722 F1G1H102A730 C 1000UF, 50V C5621 F1G1E103A123 C 0.010UF, K, C4723 F1G1H102A730 C 1000UF, 50V C5622 F1J1A475A039 C 4.7UF, K, 10V C4724 F1G1H102A730 C 1000UF, 50V C5623...
  • Page 46 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C8027 F1G1C104A116 C 0.10UF, K, 16V C8327 F1G1C104A116 C 0.10UF, K, 16V C8028 F1G1C104A116 C 0.10UF, K, 16V C8328 F1G1C104A116 C 0.10UF, K, 16V C8029...
  • Page 47 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C9035 F1J1A106A043 C 0.010UF, K, C9867 ECJ3YB1E106M C 10 UF, K, 25V C9868 ECJ3YB1E106M C 10 UF, K, 25V C9036 F1J1A106A043 C 0.010UF, K, C9869...
  • Page 48 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C9952 F1G1C104A116 C 0.10UF, K, 16V C14987 F1J1H104A835 C 0.10UF, 50V C9953 F1G1C104A116 C 0.10UF, K, 16V C14988 F1J1H104A835 C 0.10UF, 50V C9954 F1G1C104A116 C 0.10UF, K, 16V...
  • Page 49 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description C16524 F1L1E4750012 C 4.7UF, 25V C17141 F1H1A1050032 C 10UF, 50V C16525 F1L1E4750012 C 4.7UF, 25V C17142 F1H1A1050032 C 10UF, 50V C16562 F1H1C105A008 C 1UF, K, 16V C17143...
  • Page 50 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description D3068 MAZ81400ML ZENER DIODE D5692 MAZ80560LL ZENER DIODE D3069 MAZ81400ML ZENER DIODE D9017 B0BC3R3A0273 ZENER DIODE D3070 MAZ81400ML ZENER DIODE D9018 B0BC3R3A0273 ZENER DIODE...
  • Page 51 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description D16475 MAZ80510LL ZENER DIODE D16838 B0BC027A0234 ZENER DIODE D16478 B0HCKS000002 DIODE D16839 B0ECKP000047 DIODE D16480 MA2J11100L DIODE D16859 B0HCKS000002 DIODE D16481 B0FBCN000005 DIODE...
  • Page 52 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description IC14903 AN16081A-VT PAVCA IC14904 AN16081A-VT PAVCA L1100 J0JYC0000068 CHIP INDUCTOR IC14905 AN16081A-VT PAVCA L2029 J0JCC0000059 CHIP INDUCTOR IC14906 AN16081A-VT PAVCA L2038...
  • Page 53 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description L16002 G0C1R6KA0119 PEAKING COIL Q4502 2SD0601ARL TRANSISTOR L16003 G0C1R6KA0119 PEAKING COIL Q4503 2SD0601ARL TRANSISTOR L16004 G0C1R6KA0119 PEAKING COIL Q4514 2SB0709ARL TRANSISTOR...
  • Page 54 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description Q16606 2SD0601AQL TRANSISTOR R1169 ERJ2GEJ683 M 68KOHM, J,0.063W Q16607 B1CBGD000001 FET R1170 ERJ2GEJ333 M 33KOHM, Q16608 B1ABCF000231 TRANSISTOR J,0.063W Q16621 2SK399500L...
  • Page 55 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R2150 D1BB2802A055 M 28KOHM, 1/10W R3086 ERJ2GEJ221 M 220 OHM, J,0.063W R2151 D1BB2802A055 M 28KOHM, 1/10W R3087 ERJ2GEJ221 M 220 OHM, R2162 ERJ2GEJ103...
  • Page 56 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R4112 ERJ2GEJ331 M 330 OHM, R4592 D1BB8060A055 M 806 OHM, 1/10W J,0.063W R4593 D1BB2201A055 M 2.2KOHM, 1/10W R4113 ERJ6GEYG681 M 680 OHM,J,1/ R4596...
  • Page 57 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R5137 ERJ2GEJ103 M 10KOHM, R5650 ERJ2GED563X M 56KOHM J,0.063W ,J,0.063W R5138 ERJ2GEJ103 M 10KOHM, R5651 ERJ2GED563X M 56KOHM J,0.063W ,J,0.063W R5139...
  • Page 58 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R8064 ERJ2GEJ470 M 47 OHM, R8313 ERJ6GEYJ102V M 1K OHM J 1/10W J,0.063W R8314 D1BB1202A055 M 12KOHM, 1/10W R8065 ERJ2GEJ470 M 47 OHM,...
  • Page 59 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R8552 ERJ2GEJ182 M 1.8KOHM, R9086 ERJ2GEJ472 M 4.7KOHM, J,0.063W J,0.063W R8553 ERJ2GEJ182 M 1.8KOHM, R9088 ERJ2GEJ104 M 100KOHM, J,0.063W J,0.063W R8554...
  • Page 60 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R9203 ERJ2GEJ223 M 22KOHM, R9828 ERJ2GEJ473 M 47KOHM, J,0.063W J,0.063W R9205 ERJ2GEJ333 M 33KOHM, R9839 EXB38V101JV RESISTOR ARRAY J,0.063W R9846 EXB2HV103JV...
  • Page 61 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R9975 ERJ2GEJ470 M 47 OHM, R14965 ERJ6GEYJ331V M 330 OHM J 1/ J,0.063W R9977 ERJ2GEJ470 M 47 OHM, R14966 ERJ3GEYJ220 M 22 OHM,J,1/16W...
  • Page 62 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R16151 D0GD101JA036 M 100 R16306 D0GD101JA036 M 100 OHM,J,0.25W OHM,J,0.25W R16152 D0GD101JA036 M 100 R16307 D0GD101JA036 M 100 OHM,J,0.25W OHM,J,0.25W R16154...
  • Page 63 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R16507 ERJT08J1R0V M 1.8OHM,J, R16633 ERJ6GEYJ223 M 22KOHM,J,1/10W 0.33W R16634 ERJ6GEYJ471 M 470 OHM,J,1/ R16508 ERJT08J1R0V M 1.8OHM,J, 0.33W R16635 D0GD103JA036 M 10KOHM,J,0.25W...
  • Page 64 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R16749 D0GD103JA036 M 10KOHM,J,0.25W R17111 EXB38V471J RESISTOR ARRAY R16750 ERJT06J223V M 22 R17112 EXB38V471J RESISTOR ARRAY KOHM,F,0.25W R17116 D0GZ6R8JA020 M 6.8 OHM,J, R16751 ERJT06J224V...
  • Page 65 Safety Ref. No. Part No. Part Name & Pcs Remarks Safety Ref. No. Part No. Part Name & Pcs Remarks Description Description R17317 D0GZ6R8JA020 M 6.8 OHM,J, K1MN96BA0260 96P CONNECTOR 0.5W K1MN96BA0260 96P CONNECTOR R17326 D0GZ6R8JA020 M 6.8 OHM,J, SU11 K1MN20BA0266 20P CONNECTOR 0.5W SU41...

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