Table of Contents
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Service Manual
Specifications
(Informations in brackets [ ] refers to model 32")
Power Source:
Power Consumption
Stand-by Power Consumption: 0.4W
Aerial Impedance:
Receiving System:
Receiving Channels:
Operating Conditions:
Scanning format:
PC signals:
220-240V AC, 50Hz
180W [140W]
75Ω unbalanced, Coaxial Type
PAL-I/H, B/G, D/K
SECAM B/G, D/K, L/L'
PAL-525/60 (AV only)
M.NTSC (AV only)
NTSC (AV only)
VHF E2-E12
VHF A-H (ITALY)
VHF R3-R5
UHF E21-E69
CATV S1-S10 (M1-M10)
CATV S21-S41 (Hyperband)
0°C ÷ 35°C
Temperature:
Humidity: 20% ÷ 80% RH (non condensing)
480i(60Hz), 480p(60Hz), 576i(50Hz), 576p(50Hz), 720p(60Hz), 720p(50Hz), 1.080i(60Hz),
1.080i(50Hz), 1.080p(60Hz), 1.080p(50Hz) ), 1.080p(24Hz)
VGA, SVGA, XGA, SXGA(compressed)
Horizontal scanning frequency
Vertical scanning frequency
Colour LCD Television
GLP23 Chassis
VHF H1-H2 (ITALY)
VHF R1-R2
VHF R6-R12
CATV (S01-S05)
CATV S11-S20 (U1-U10)
31 – 69 kHz
59 – 86 Hz
ORDER No. PCZ0804035CE
TX-37LX85F
TX-37LX85L
TX-37LX85P
TX-32LX85F
TX-32LX85L
TX-32LX85P
TX-R37LX85
TX-R32LX85
Panasonic CS ( U.K. ) Ltd.
WILLOUGHBY ROAD,
BRACKNELL,
BERKS.,
RG12 8FT.
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Table of Contents
Related Manuals for Panasonic TX-37LX85F
Summary of Contents for Panasonic TX-37LX85F
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Page 1: Service Manual
480i(60Hz), 480p(60Hz), 576i(50Hz), 576p(50Hz), 720p(60Hz), 720p(50Hz), 1.080i(60Hz), 1.080i(50Hz), 1.080p(60Hz), 1.080p(50Hz) ), 1.080p(24Hz) PC signals: VGA, SVGA, XGA, SXGA(compressed) Horizontal scanning frequency 31 – 69 kHz Vertical scanning frequency 59 – 86 Hz Panasonic CS ( U.K. ) Ltd. WILLOUGHBY ROAD, BRACKNELL, BERKS., RG12 8FT. - Page 2 Intermediate Frequency: Video/Audio Video 38,9MHz, 33,9MHz Audio 33,4MHz (B/G), 33,16MHz (A2) 33,05MHz (NICAM B/G, D/K, L’) 32,4MHz (D/K), 32,66MHz (CZ STEREO) 40,4MHz (L’), 39,75MHz (L’ NICAM) Colour 34,47MHz (PAL) 34,5MHz, 34,65MHz (SECAM) 38,3MHz, 38,15MHz (SECAM L’) Terminals: AV1 IN Video (21 pin) 1V p-p 75Ω Audio (21 pin) 500mV rms 10kΩ...
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Page 3: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ................4 GENERAL GUIDE LINES..............4 TOUCH – CURRENT CHECK.............. 4 PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES ......5 ABOUT LEAD FREE SOLDER (PBF)............6 SUGGESTED PB FREE SOLDER............6 APPLICABLE SIGNALS................7 SERVICE HINTS .................. -
Page 4: Safety Precautions
Safety Precautions General Guide Lines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. -
Page 5: Prevention Of Electrostatic Discharge (Esd) To Electrostatically Sensitive (Es) Devices
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 Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip"... -
Page 6: About Lead Free Solder (Pbf)
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 7: Applicable Signals
Applicable signals Component (Y, Pb, Pr), HDMI Signal name COMPONENT HDMI 525 (480) / 60i 525 (480) / 60p 625 (576) / 50i 625 (576) / 50p 750 (720) / 60p 750 (720) / 50p 1,125 (1,080) / 60i 1,125 (1,080) / 50i 1,125 (1,080) / 60p 1,125 (1,080) / 50p 1,125 (1,080) / 24p... -
Page 8: Service Hints
Service Hints How to remove the backcover Remove the 18 fixing screws. (see Fig.5) SCREWS SCREWS Fig.5 How to remove the Pedestal assembly Lay the main unit face down. (see Fig.6) Fig.6 Remove the 4 fixing screws and the pedestal assembly. (see Fig.7) SCREWS Fig.7... -
Page 9: Chassis Board Layout
Chassis Board Layout G-BOARD P-BOARD A-BOARD K-BOARD V-BOARD Board Name Function A-Board Tuner, PC, AVSW, HQ1L, HDMI,Global Core, GENX, AV Terminal, SD Slot, Speaker out, ADV P-Board Power Supply, Main Input V-Board Remote Receiver, Bats, R/G LED G-Board Side AV Connector K-Board Main Switch Location of Lead Wiring... -
Page 10: Setting Inspection
Setting Inspection Voltage Confirmation Confirm the following voltages: P board Description Test point Position Normal mode Stand by mode Active stand by mode Panel 12V TP863 P2, pins 16, 17 12,0V +/- 0,35V 12V +/- 0,35V 16V_Audio TP858 P2, pins 20, 21 16V +/- 1V 16V +/- 1V SUB_9V... -
Page 11: Self-Check
O.K. MODEL ID TEMP O.K. 03151100 O.K. 00000004 HQ1L O.K. fa.f5 EDID1 EDID2 fa.e5 Panasonic 2008LCD 37HD Self Check Complete TX-37LX85F, P, L 173a O.K. PEAKS-SOFT 2.106 ADAV O.K. PEAKS-EEP 01.05.0034 OPTION 1 O.K. GenX-SOFT 1.01.00 OPTION 2 GENX O.K. -
Page 12: Power Led Blinking Timing Chart
Power LED blinking timing chart Subject Information of LED Flashing timing chart. Contents When 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 number of blinking of the Power LED on the front panel of the unit. Blinking Blinking timing Contents... -
Page 13: Service Mode Function
Service Mode Function MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu How to enter SERVICE While pressing (-/v) button on TV unit, press on the remote control for 3 times within 2 seconds. -
Page 14: Service
SERVICE SERVICE Peaks SOFT 2.106 OPTION 1 0c Key Command ADJUST Peaks EEP 01.05.0034 OPTION 2 WB-ADJ LSI DATA 0.00.04 OPTION 3 OPTION STBY SOFT 1.01.00 Model ID • SRV-TOOL STBY EEP 1.07.00 032b1100 Press the 3/4 button to change the adjustment values or function. STBY ROMCOR 1.04.00 00000010... -
Page 15: Option Description
Option Bytes Description OPTION1 ATP Speed Slow (1) / Fast (0) TXT Ch On (1) / Off (0) ID-1 On (1) / Off (0) Macrovision Auto Evaluation On (1) / Off (0) SRS Surround On (1) / Off (0) Teletext Top Off (1) / On (0) Equalizer Not Use... -
Page 16: Adjustment Method
Adjustment Method Sub-Contrast/White Balance Adjustment Instrument Name Connect to Remarks Remote controller Correlation can be also taken by LCD WB meter (Minolta CS-1000A equivalent) CA-210 or equivalent Comunication jig Computer for external control Procedure Remarks Let the panel standfor more than 3 hours at more than 20 °C. -
Page 17: Wiring Diagram
Wiring diagram... -
Page 18: Block Diagrams
Video & Stereo Audio Block Diagram JK4501 RXB_2P,2N,1P,1N,0P,0N,CP,CN (1,3,4,6,7,9,10,12) 114,115,117,118, Q4516 AV1_V MAIN_Y/CVBS MAIN_Y/CVBS AV1_V 120,121,123,124 HDMI 1 AV1_VOUT AV1_VO Q4515 MAIN_PB MAIN_PB AV1_RED AV1_RED Q4514 RXC_2P,2N,1P,1N,0P,0N,CP,CN (1,3,4,6,7,9,10,12) JK4500 AV1_GREEN MAIN_PR/C MAIN_PR/C AV1_GREEN 130,131,133,134, 136,137,139,140 HDMI 2 AV1_BLUE AV1_BLUE Q4519 RGB_CVBS RGB _CVBS AV1_L... - Page 19 Power Supply Block Diagram A-BOARD P-BOARD (EXCHANGE UNIT) LF801 LF802 RELAY_5V6 IC3001 Line Line T803 Filter Filter RL801 HDMI TERMINAL SWITCH F801 STB_5V6 SUB5V 4, 6, 16, 18, 22, JK4500 24, 36, 82, 86, D809 90, 92 PC802 HDMI1 SUB9V IC802 T804 JK4501...
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Page 20: Lcd Panel
Control Block Diagram A - BOARD (EXCHANGE UNIT) TMP_SENS_SCL AG_DTV_XRST IC5660 IC1000 AV2_SLOW ADV_SDA TMP_SENS_SDA IFAGC RESET IC TEMP SENSOR TU2901 IC4510 PC_VS ADV_SCL TUNER_SCL AV1_SLOW HDMI_CEC PC_HS C1AB00002966 TUNER HDMI1 XIRQ3 TUNER_SDA SCL_AIR RGB_FB IC4209 AG_HDMI_5V_DET1 27, 94 AG_ADV_XRST IFD1 JK4501 AV1_QLINK... -
Page 21: Parts Location
Parts Location NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List. (UK) (CONTINENTAL) - Page 22 NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List. Difference for 37’’...
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Page 23: Replacement Parts List
Replacement Parts List Important Safety Notice Components Identified by mark have special characteristics important for safety. * When replacing any of these components, use only manufacturers specified parts. In case of ordering these spare parts, please always add the complete Model-Type number to your order. RTL (Retention Time Limited) Note: The marking (RTL) indicates that the Retention Time is Limited for this item. - Page 24 Cct Ref Parts Number Description Cct Ref Parts Number Description FUSES D3027 MAZ81400ML DIODE D3028 MAZ81400ML DIODE F801 K5D502BNA007 AC FUSE D3030 MAZ81400ML DIODE DIODES D3031 MAZ81400ML DIODE D801 ERZV10V621T2 VARISTOR D3032 MAZ81400ML DIODE D802 MA22F2000L DIODE D3052 MA3X704A0L DIODE MA704ATX D803 MA2J11100L DIODE...
- Page 25 Cct Ref Parts Number Description Cct Ref Parts Number Description D5612 MAZ80470ML ZENER DIODE Q2502 2SD0601ASL TRANSISTOR D5613 MA2J11100L DIODE Q2504 2SD601ATX TRANSISTOR D5614 MAZ81800ML DIODE Q2505 2SB0709ASL TRANSISTOR D5615 MA2J11100L DIODE Q2506 2SB0709ASL TRANSISTOR D5616 MA2J11100L DIODE Q3000 2SD601ATX TRANSISTOR D5617 MA2J11100L...
- Page 26 Cct Ref Parts Number Description Cct Ref Parts Number Description L1013 J0JYC0000065 COIL L4506 J0JYC0000068 CHIP INDUCTOR L1015 J0JYC0000065 COIL L4507 J0JYC0000068 CHIP INDUCTOR L1016 J0JYC0000065 COIL L4511 J0JYC0000068 CHIP INDUCTOR L1017 J0JYC0000065 COIL L4512 J0JCC0000059 CHIP INDUCTOR L1026 J0JYC0000065 COIL L4513 J0JCC0000059...
- Page 27 Cct Ref Parts Number Description Cct Ref Parts Number Description JS2069 ERJ2GE0R00X .063W 0 Ω JSA0034 ERJ6GEY0R00 S.M.CARB 0.1W 0 Ω JS2070 ERJ2GE0R00X .063W 0 Ω JSP827 ERJ6GEY0R00 S.M.CARB 0.1W 0 Ω JS2072 ERJ2GE0R00X .063W 0 Ω JSP828 ERJ6GEY0R00 S.M.CARB 0.1W 0 Ω...
- Page 28 Cct Ref Parts Number Description Cct Ref Parts Number Description R851 ERJ6GEYJ222 S.M.CARB 0.1W 2K2 Ω R1184 ERJ2GE0R00X .063W 0 Ω R852 D0GD103JA036 .125W 10K Ω R1185 ERJ6GEYJ201 S.M.CARB 0.1W 200 Ω R853 ERJ6GEYJ223 S.M.CARB 0.1W 22K Ω R1186 ERJ2GEJ222X .063W 2K2 Ω...
- Page 29 Cct Ref Parts Number Description Cct Ref Parts Number Description R2026 D1BB1203A055 0.1W 120K Ω R2179 ERJ2GEJ104X .063W 100K Ω R2027 D1BB7502A055 0.1W 75K Ω R2181 ERJ2GEJ223X .063W 22K Ω R2029 ERJ2GE0R00X .063W 0 Ω R2182 ERJ2GEJ563X .063W 56K Ω R2030 ERJ2GE0R00X .063W...
- Page 30 Cct Ref Parts Number Description Cct Ref Parts Number Description R3042 ERJ2GEJ331X .063W 330 Ω R3144 ERJ2GE0R00X .063W 0 Ω R3043 ERJ2GEJ221X .063W 220 Ω R3145 ERJ2GE0R00X .063W 0 Ω R3045 ERJ2GEJ221X .063W 220 Ω R3146 ERJ2GEJ331X .063W 330 Ω R3047 ERJ2GEJ221X .063W...
- Page 31 Cct Ref Parts Number Description Cct Ref Parts Number Description R4217 ERJ2GEJ680X .063W 68 Ω R4297 ERJ2GE0R00X .063W 0 Ω R4218 ERJ2GEJ680X .063W 68 Ω R4298 ERJ2GE0R00X .063W 0 Ω R4219 ERJ2GEJ680X .063W 68 Ω R4299 ERJ2GE0R00X .063W 0 Ω R4221 ERJ2GE0R00X .063W...
- Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description R4397 ERJ2GE0R00X .063W 0 Ω R4640 EXB28V680JX .031W 68 Ω R4399 D1BB2001A055 0.1W 2K Ω R4644 ERJ2GE0R00X .063W 0 Ω R4400 ERJ2GE0R00X .063W 0 Ω R4645 ERJ2GEJ680X .063W 68 Ω R4404 ERJ3GEY0R00 0.1W...
- Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description R5629 D1BB2802A055 0.1W 28K Ω R5717 ERJ2GE0R00X .063W 0 Ω R5630 D1BB4752A055 0.1W 47K5 Ω R5719 ERJ2GEJ104X .063W 100K Ω R5631 D1BB3602A055 0.1W 36K Ω R5720 ERJ6ENF1602V .125W 16K Ω R5632 D1BB3002A055 0.1W...
- Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description R8474 EXB28V103JX .031W 10K Ω R8896 ERJ2GE0R00X .063W 0 Ω R8475 EXB28V103JX .031W 10K Ω R8897 ERJ2GE0R00X .063W 0 Ω R8501 ERJ2GEJ101X .063W 100 Ω R8898 ERJ2GEJ103X .063W 10K Ω R8502 ERJ2GEJ331X .063W...
- Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description C824 F1J1H223A834 S.M.CAP 22nF C1135 F1J1C1050030 S.M.CAP 1000nF C825 ECJ2VB1H821K S.M.CAP 820pF C1136 F1J1H103A834 S.M.CAP 10nF C827 ECA1HHG470B ELECT 47µF C1137 F1J1H473A835 S.M.CAP 47nF C828 F1J1H223A834 S.M.CAP 22nF C1138 F2G0J101A019 ELECT 6.3V 100µF...
- Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description C2192 F2G0J470A019 ELECT 6.3V 47µF C2914 ECJ1VB1H104 S.M.CAP 100nF C2195 F1H1H102A219 CERAMIC C2915 F2G1H100A031 ELEC 10µF C2197 F1H1E333A129 S.M.CAP 33nF C2916 F1H1C104A143 S.M.CAP 100nF C2198 F1H1E333A129 S.M.CAP 33nF C2920 F1H1H103A970 S.M.CAP 10nF C2202...
- Page 37 Cct Ref Parts Number Description Cct Ref Parts Number Description C3112 F1G1C1030008 S.M.CAP 10nF C4253 F1G1H102A730 S.M.CAP C3113 F1G1C1030008 S.M.CAP 10nF C4254 F1G1C104A116 S.M.CAP 100nF C3114 F1J1A106A043 S.M.CAP 10µF C4255 F1G1C104A116 S.M.CAP 100nF C3115 F1J1A106A043 S.M.CAP 10µF C4256 F1G1C104A116 S.M.CAP 100nF C3116 F1J1A106A043...
- Page 38 Cct Ref Parts Number Description Cct Ref Parts Number Description C4331 F1G1C104A116 S.M.CAP 100nF C4409 F2G0G101A007 ELECT 100µF C4334 F1H0J1050012 S.M.CAP 6.3V 1000nF C4410 F1H1H103A970 S.M.CAP 10nF C4335 F1H0J1050012 S.M.CAP 6.3V 1000nF C4411 F1H1A1050032 S.M.CAP 1000nF C4336 F1H0J1050012 S.M.CAP 6.3V 1000nF C4412 F1G1H102A730...
- Page 39 Cct Ref Parts Number Description Cct Ref Parts Number Description C4694 F1H1C104A143 S.M.CAP 100nF C5668 F1G1H102A730 S.M.CAP C4695 F1H1C104A143 S.M.CAP 100nF C5669 F1J1H474A757 S.M.CAP 470nF C4700 F1G1A104A012 100nF C5670 F1J1H474A757 S.M.CAP 470nF C4701 F1G1A104A012 100nF C5671 F2G1C470A022 ELECT 47µF C4703 F1G1A104A012 100nF C5672...
- Page 40 Cct Ref Parts Number Description Cct Ref Parts Number Description C8056 F1G1C104A116 S.M.CAP 100nF TXASX01NXA-1 AC CORD ASSY C8057 F1G1C104A116 S.M.CAP 100nF TKU0E1701 BACK COVER C8058 F1J1A106A043 S.M.CAP 10µF TTY0E0312 CABINET ASSY C8067 F1G1E103A123 S.M.CAP 10nF TUA0E2600 L CHASSIS FRAME BRACKE C8068 F1G1C104A116 S.M.CAP...
- Page 41 Cct Ref Parts Number Description Cct Ref Parts Number Description CARTON TPC0E49600 CARTON DIFFERENCES FOR MODEL TX--37LX85F TOPCUS TPD0E1047 TOP CUSHION INSTRUCTION BOOKS EXPLODED VIEW TQB0E0681-1 ENGLISH A-37LX85F A P.C.B. I.C.s TXASX01NXA-1 AC CORD ASSY IC8601 X24C32LX85L EEPROM PL2 TKU0E1801 BACK COVER TERMINALS AND LINKS TUA0E3600...
- Page 42 Cct Ref Parts Number Description Cct Ref Parts Number Description L5EDD9Q00004 LCD PANEL TQB0E0663W-1 SLOVAKIAN TBM0E1469-1 MODEL LABEL TQB0E0663X1 CD ROM TTX0E0007 PEDESTAL ASSY TQB0E0663Z-1 ESTONIAN TKP0E91801 POWER BUTTON BRACKET I.C.s TUA0E3400 R CHASSIS FRAME BRACKE IC8601 X24C37LX85P EEPROM PL2 TKP0E35401 TRIM PANEL TERMINALS AND LINKS...
- Page 43 Cct Ref Parts Number Description Cct Ref Parts Number Description INSTRUCTION BOOKS TQB0E0567L-1 RUSSIAN TQB0E0567Y-1 UKRAINIAN I.C.s IC8601 X24CR37LX85 EEPROM PL2 TERMINALS AND LINKS A1-V1 TXJA1NUA-1 A1-V1 WIRE A5-PAN K1PY51Y00016 A5-PANEL WIRE A12-K1 TXJA12NUA A12-K1 WIRE A14-SPK TXJA14NUA-3 A14-SPK WIRE CN-A,P TXJP5NUA-1 CN101-A13/P5 WIRE...
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Page 44: Schematic Diagrams
Schematic Diagrams IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise. Unit of resistance is OHM (Ω) (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise. -
Page 66: Conductor Views
Conductor Views A-BOARD TNP8EAL90 - top IC’S Q2070 IC1101 Q2071 IC1104 Q3000 IC2106 Q3001 IC2107 Q3002 IC2301 Q3003 IC4200 Q3004 IC4201 Q3005 IC4202 Q4203 IC4207 Q4204 IC4510 Q4205 IC4514 Q4206 IC4515 Q4207 IC5602 Q4501 IC5660 Q4514 IC8001 Q4515 IC8002 Q4702 IC8003 Q5600 IC8601... - Page 67 A-BOARD TNP8EAL90 - bottom IC’S TRAN’S IC1000 Q1104 IC1100 Q1105 IC2008 Q2021 IC2012 Q2022 IC2013 Q2061 IC2902 Q2062 IC3001 Q2064 IC4203 Q2065 IC4204 Q2066 IC4205 Q4200 IC4206 Q4201 IC4208 Q4202 IC4209 Q4208 IC4511 Q4500 IC4512 Q4502 IC4513 Q4503 IC4700 Q4516 IC5600 Q4517 IC5601...
- Page 68 P-BOARD TNP8EPL90 - top IC’S IC801 IC802 IC803 IC854 DIODE’S D801 D809 D811 D815 D817 D822 D825 D826 D827 D829 D830 D834 D835 D852 D853 D855 TRAN’S Q805 Q806...
- Page 69 P-BOARD TNP8EPL90 - bottom IC’S TRAN’S IC851 Q801 IC853 Q804 Q809 DIODE’S Q810 D802 Q811 D803 Q851 D804 Q852 D805 D806 TP’S D807 TP863 D808 TP858 D810 TP860 D812 TP853 D813 TP856 D814 D819 D820 D828 D831 D832 D851 D854...
- Page 70 V-BOARD TNP8EVL92 - top TRAN’S Q2501 Q2502 Q2504 Q2505 Q2506 DIODE’S D2501 IC’S RM2501 A2...