Panasonic TX-32LMD70A Service Manual

Hide thumbs Also See for TX-32LMD70A:

Operating instructions manual (52 pages)

Service manual (69 pages)

Table Of Contents

Table of Contents

Quick Links

Service Manual

Specifications

(Informations in brackets [ ] refers to model 26")

Power Source:

Power Consumption

Stand-by Power Consumption: 1.0W (TV ONLY)

Aerial Impedance:

Receiving System:

Receiving Channels:

Operating Conditions:

Scanning format:

PC signals:

220-240V AC, 50Hz

135W [104W]

13W (TV+DVB set to record)

75Ω unbalanced, Coaxial Type

LMD70A

PAL-I

PAL-525/60 (AV only)

DVB (via UHF aerial input)

M.NTSC (AV only)

NTSC (AV only)

LMD70A

UHF E21-E68

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)

VGA, SVGA, XGA, SXGA(compressed)

Horizontal scanning frequency

Vertical scanning frequency

Colour LCD Television

TX-32LMD70A

TX-32LMD70FA

TX-32LMD71FA

TX-32LMD72FA

TX-26LMD70A

TX-26LMD70FA

TX-26LMD71FA

GLP22M Chassis

LMD70FA

PAL-I/H, B/G, D/K

SECAM B/G, D/K, L/L'

PAL-525/60 (AV only)

DVB (via VHF/UHF aerial input)

M.NTSC (AV only)

NTSC (AV only)

LMD70FA

VHF E2-E12

VHF A-H (ITALY)

VHF R3-R5

UHF E21-E69

CATV S1-S10 (M1-M10)

CATV S21-S41 (Hyperband)

31 – 69 kHz

59 – 86 Hz

ORDER No. PCZ0709109CE

VHF H1-H2 (ITALY)

VHF R1-R2

VHF R6-R12

CATV (S01-S05)

CATV S11-S20 (U1-U10)

Panasonic CS ( U.K. ) Ltd.

WILLOUGHBY ROAD,

BRACKNELL,

BERKS.,

RG12 8FT.

Table of Contents

Summary of Contents for Panasonic TX-32LMD70A

Page 1 480i(60Hz), 480p(60Hz), 576i(50Hz), 576p(50Hz), 720p(60Hz), 720p(50Hz), 1.080i(60Hz), 1.080i(50Hz), 1.080p(60Hz), 1.080p(50Hz) 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 LMD70A LMD70FA Video 38,9MHz 38,9MHz, 33,9MHz Audio 32.90MHz 33,4MHz (B/G), 33,16MHz (A2) 32.35MHz(NICAM) 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 34,47MHz (PAL) 34,5MHz, 34,65MHz (SECAM) 38,3MHz, 38,15MHz (SECAM L’) Terminals: AV1 IN Video (21 pin) 1V p-p 75Ω...
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 PC (D-sub 15P)
Page 8: Service Hints
Service Hints How to remove the backcover Remove the 18[16] 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 P-BOARD DG-BOARD V-BOARD G-BOARD Board Name Function DG-Board Global Core, HDMI, IDTV Processor, D/A Converter, AV Connector, Analog tuner, Digital tuner, AV Switch G-Board Side AV Connector P-Board Main Input, Power Supply, Main Switch V-Board Remote Receiver, LED IR, Cats Location of Lead Wiring To find the Part Number of required wire in Replacement Parts List click on the wire name in red box.
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 <1V Sub_5V TP861 P4, pin 12,13 5,0V +/- 0,25V 5,0V +/- 0,25V Panel 5/12V TP857 P4, pin 22,23 12V +/- 1V <1V <1V...
Page 11: Self-Check
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set. To enter Self-Check mode, keep pressing the down (-/v) button on the TV set and press the STATUS button on the remote control. To exit Self Check, switch off the TV set at the power button. Panasonic 2007LCD 26lmd70a.dat:000001 TX-26LMD70FA Self Check Complete...
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 6.570 OPTION 1 0c Key Command ADJUST Peaks EEP 02.06.0034 OPTION 2 ea WB-ADJ LSI DATA 0.00.02 OPTION 3 OPTION GenX SOFT 1.00.00 Model ID • SRV-TOOL GenX EEP 1.02.00 03150000 Press the 3/4 button to change the adjustment values or function. GenX ROMCOR 1.01.00 00000004...
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) Not Use 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 PC INPUT TUNER TU3200 JK3001 21 10 DG-BOARD (EXCHANGE UNIT) AV1_V AV1_V PC_R AV1_VOUT AV1_VO PC_G AV1_RED AV1_RED PC_B IC3001 AV1_GREEN AV1_GREEN Q4516 Y_IN VIDEO SWITCH AV1_BLUE AV1_BLUE IC4510 (AN15876A) Q4515 PB/C 8,10 AV1_L AV2_V ADV7493BBSTZ AV2_VO...
Page 19 POWER SUPPLY BLOCK DIAGRAM MAIN IN DG-BOARD P-BOARD (EXCHANGE UNIT) F801 SW 801 DG13 LF804 SOUND_15V SOUND_15V LINE IC2010 IC3001 IC2106 IC2301 FILTER D801 3,3V SUB5V DTV9V 9V_HEADER Vout REG AUDIO AUDIO VIDEO PROCESSOR AMPLIFIER SUB_5V SUB_5V SWITCH SOUND15V 12-13 15V_AUDIO 24V_IN DTV9V...
Page 20 CONTROL BLOCK DIAGRAM DG - BOARD AV2_SLOW (EXCHANGE UNIT) IC2002 DAC_PD IC4501 IC4504 PC_V AUDIO DAC PC_H EEPROM EEPROM AV1_SLOW 46,74 AV2_FB AMUTE IC2301 IC4513 HDMI1 AV1_FB IC3001 AV1_QLINK PC_V_IN DATA CONTROL LEVEL SOUND_SOS AUDIO AMP IC4510 JK4501 VIDEO SWITCH Q2301 PC_H_IN TRANSLATING...
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. [31] [22] [23] [23]...
Page 23: Replacement Parts List
TUNER DVB IC2107 C0DBFFD00003 1.8V REGULATOR EUR7651110 REMOTE CONTROL IC2301 C1AB00002730 AUDIO AMPLIFIER K0RB00500023 KEY BUTTON MODULE IC2303 C0DBGYY00202 REGULATOR TBMA216-1 PANASONIC BADGE IC2610 C0DBAJB00004 REGULATOR TKP0E16001 CONNECTOR COVER IC3001 AN15876A-VT VIDEO SWITCH TKP0E17101 AV3 BRACKET IC3101 AN15862A-VT AUDIO SWITCH TKP0E24401...
Page 24 Cct Ref Parts Number Description Cct Ref Parts Number Description IC8622 C0JBAZ002845 LOGIC IC D2633 MA2J11100L DIODE PC801 B3PAA0000363 PHOTO COUPLER D2634 MA3X78900L DIODE PC802 B3PAA0000363 PHOTO COUPLER D2635 MA2J11100L DIODE PC803 B3PAA0000363 PHOTO COUPLER D2636 MAZ30470HL DIODE PC804 B3PAA0000363 PHOTO COUPLER D2637 MA2J11100L...
Page 25 Cct Ref Parts Number Description Cct Ref Parts Number Description D4512 EZAEG2A50AX ESD SUPPRESSOR Q1006 2SD0601ASL TRANSISTOR D4513 MAZ30560ML DIODE Q1007 2SD0601ASL TRANSISTOR D4514 EZAEG2A50AX ESD SUPPRESSOR Q1009 2SD0601ASL TRANSISTOR D4515 MAZ30560ML DIODE Q1010 2SD0601ASL TRANSISTOR D4516 EZAEG2A50AX ESD SUPPRESSOR Q1107 2SD0601ASL TRANSISTOR...
Page 26 Cct Ref Parts Number Description Cct Ref Parts Number Description Q4517 2SB0709ASL TRANSISTOR L3206 J0JCC0000241 INDUCTOR Q4519 2SB0709ASL TRANSISTOR L3207 J0JCC0000241 INDUCTOR Q4800 2SD0601ASL TRANSISTOR L3209 J0JGC0000021 COIL Q4801 2SC39380QL TRANSISTOR L3210 J0JCC0000241 INDUCTOR Q4802 2SC39380QL TRANSISTOR L3211 J0JGC0000021 COIL Q4803 2SD0601ASL TRANSISTOR...
Page 27 Cct Ref Parts Number Description Cct Ref Parts Number Description FL3004 J0HABB000004 FILTER R815 ERD25TJ224 CARBON 0.25W 220K Ω FL3005 J0HABB000004 FILTER R816 ERJ6GEYJ753 S.M.CARB 0.1W 75K Ω FL3008 J0HABB000003 FILTER R817 ERJ12YJ182U 0.5W 1K8 Ω FL4800 J0JAD0000028 FILTER R818 ERJ6GEYJ473 S.M.CARB 0.1W...
Page 28 Cct Ref Parts Number Description Cct Ref Parts Number Description R889 ERJ6GEYJ473 S.M.CARB 0.1W 47K Ω R1200 ERJ2GEJ562X .063W 5K6 Ω R890 ERJ6GEYJ102 S.M.CARB 0.1W 1K Ω R1201 ERJ2GEJ562X .063W 5K6 Ω R891 ERJ6GEYJ102 S.M.CARB 0.1W 1K Ω R1202 ERJ2GEJ473X .063W 47K Ω...
Page 29 Cct Ref Parts Number Description Cct Ref Parts Number Description R2052 ERJ6GEYJ184 S.M.CARB 0.1W 180K Ω R2168 ERJ3EKF1602V 0.1W 16K Ω R2053 ERJ2GEJ104X .063W 100K Ω R2169 ERJ3EKF2202V 0.1W 22K Ω R2054 ERJ2GEJ104X .063W 100K Ω R2170 ERJ2GEJ221X .063W 220 Ω R2056 ERJ2GEJ220X .063W...
Page 30 Cct Ref Parts Number Description Cct Ref Parts Number Description R2624 ERJ2GEJ220X .063W 22 Ω R3100 ERJ2GEJ221X .063W 220 Ω R2625 ERJ2GEJ220X .063W 22 Ω R3101 ERJ2GEJ221X .063W 220 Ω R2628 ERJ2GEJ682X .063W 6K8 Ω R3102 ERJ2GEJ103X .063W 10K Ω R2629 ERJ2GEJ682X .063W...
Page 31 Cct Ref Parts Number Description Cct Ref Parts Number Description R3701 ERJ6GEYJ393 S.M.CARB 0.1W 39K Ω R4507 ERJ2GEJ103X .063W 10K Ω R3702 ERJ6GEYJ184 S.M.CARB 0.1W 180K Ω R4508 ERJ2GEJ2R2X .063W 2.2 Ω R3703 ERJ6GEYJ184 S.M.CARB 0.1W 180K Ω R4509 ERJ2GEJ2R2X .063W 2.2 Ω...
Page 32 Cct Ref Parts Number Description Cct Ref Parts Number Description R4622 ERJ2GEJ101X .063W 100 Ω R5538 ERJ2GEJ222X .063W 2K2 Ω R4624 ERJ3EKF1691V 0.1W 1K69 Ω R5542 ERJ6GEYJ471 S.M.CARB 0.1W 470 Ω R4626 ERJ2GEJ105X .063W 1M Ω R5544 ERJ3GEYJ221 0.1W 220 Ω R4627 ERJ2GE0R00X .063W...
Page 33 Cct Ref Parts Number Description Cct Ref Parts Number Description R8025 ERJ2GE0R00X .063W 0 Ω R8318 ERJ2GEJ472X .063W 4K7 Ω R8026 ERJ2GE0R00X .063W 0 Ω R8321 ERJ2GEJ103X .063W 10K Ω R8027 ERJ2GE0R00X .063W 0 Ω R8322 ERJ2GEJ102X .063W 1K Ω R8028 ERJ2GE0R00X .063W...
Page 34 Cct Ref Parts Number Description Cct Ref Parts Number Description R8504 ERJ2GEJ331X .063W 330 Ω R8853 ERJ2GE0R00X .063W 0 Ω R8506 ERJ2GEJ331X .063W 330 Ω R8854 ERJ2GE0R00X .063W 0 Ω R8507 ERJ3EKF91R0V 0.1W 91 Ω R8855 ERJ2GEJ680X .063W 68 Ω R8508 ERJ3EKF91R0V 0.1W...
Page 35 Cct Ref Parts Number Description Cct Ref Parts Number Description R8927 ERJ2GE0R00X .063W 0 Ω C1010 F2G0J220A019 ELECT 6.3V 22µF R8929 EXB2HVR000V 0 Ω C1102 F1J1A106A043 CERAMIC 10µF R8935 ERJ2GEJ103X .063W 10K Ω C1103 F1G1C104A081 S.M.CAP 100nF R8947 ERJ2GEJ680X .063W 68 Ω...
Page 36 Cct Ref Parts Number Description Cct Ref Parts Number Description C2114 F1G1C104A081 S.M.CAP 100nF C2213 F1G1H1020008 S.M.CAP C2115 F1G1C104A081 S.M.CAP 100nF C2216 F1G1C104A081 S.M.CAP 100nF C2116 F1H1H471A792 S.M.CAP 470pF C2244 F1G1C104A081 S.M.CAP 100nF C2117 F1G1C104A081 S.M.CAP 100nF C2245 F1G1H1020008 S.M.CAP C2118 ECJ1VB1C105K 1000nF...
Page 37 Cct Ref Parts Number Description Cct Ref Parts Number Description C2815 F1G1C104A081 S.M.CAP 100nF C3867 ECJ3YB1E105K 1000nF C2816 EEEHB1V220P 22µF C3868 ECJ3YB1E105K 1000nF C2817 F1G1H1020008 S.M.CAP C3869 ECJ3YB1E105K 1000nF C2819 EEEHB1E470P ELECT 47µF C3870 ECJ3YB1E105K 1000nF C3001 F1G1H1020008 S.M.CAP C3871 F1L1V1060003 10µF C3002...
Page 38 Cct Ref Parts Number Description Cct Ref Parts Number Description C4564 F1G1E1030005 S.M.CAP 10nF C5604 F1G1E1030005 S.M.CAP 10nF C4565 F1G1E1030005 S.M.CAP 10nF C5605 ECJ2FB1C475K 4700nF C4566 ECJ1VB1C393K S.M.CAP 39nF C5606 F1H1H471A792 S.M.CAP 470pF C4567 F1G1C104A081 S.M.CAP 100nF C5607 F1H1H221A792 220pF C4568 F1G1C104A081 S.M.CAP...
Page 39 Cct Ref Parts Number Description Cct Ref Parts Number Description C8020 F1G1C104A081 S.M.CAP 100nF C8325 F1G1E1030005 S.M.CAP 10nF C8021 F1G1C104A081 S.M.CAP 100nF C8327 ECJ1VB1C105K 1000nF C8022 ECJ1VB1C105K 1000nF C8328 ECJ1VB1C105K 1000nF C8023 F1J1A106A043 CERAMIC 10µF C8329 F1G1E1030005 S.M.CAP 10nF C8024 F1J1A106A043 CERAMIC 10µF...
Page 40 Cct Ref Parts Number Description Cct Ref Parts Number Description P2-INV TXJP2MUA P2/DG11-INV WIRE MISCELLANEOUS COMPONENTS K1KB23A00004 23P CONNECTOR TBM0E9011 AV LABEL K1KB23A00004 23P CONNECTOR TMK0E118 FELT K1KA08AA0192 8P CONNECTOR TPC0E71801 CARTON K1KA03AA0190 3P CONNECTOR TPD0E0142 TOP CUSHION P7-DG TXJP7MUA P7-DG WIRE TPD0E0143-1 BOTTOM CUSHION...
Page 41 Cct Ref Parts Number Description Cct Ref Parts Number Description EXPLODED VIEW TUA0E9565 L LCD FIXING PLATE TUA0E9566 R LCD FIXING PLATE TXASX01MSA AC CORD FK304 TEWA293 GASKET (15X24X14) TKU0E0203 BACK COVER INSTRUCTION BOOKS TTY0E0140-2 CABINET TUA0E1700 CHASSIS FRAME TQB0E0504A GERMAN DG-32LMD70A DG P.C.B.
Page 42 Cct Ref Parts Number Description Cct Ref Parts Number Description EXPLODED VIEW TXASX01MUA AC CORD TKU0E0203 BACK COVER TTY0E0185-2 CABINET TUA0E1700 CHASSIS FRAME DG-32LMD70FA DG P.C.B. TKZ0E9382 L LCD BOTTOM MTG TKZ0E9380 L LCD MTG TKZ0E9555 L/R LCD TOP MTG TKZ0E9414 LCD BOTTOM MTG L5EDD8Q00037...
Page 43: 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 65: Conductor Views
Conductor Views DG-BOARD TNP8EDG81 - top TRAN’S IC1101 D3027 Q2002 IC2008 D3028 Q2003 IC2012 D3030 Q2004 IC2106 D3031 Q2005 IC2107 D3032 Q2006 IC2301 D3038 Q2007 IC3001 D3044 Q2031 IC4500 D3100 Q2635 IC4501 D3102 Q2638 IC4506 D3334 Q3027 IC4510 D3335 Q3031 IC4800 D3336 Q3032...
Page 66 DG-BOARD TNP8EDG81 - bottom IC’S Q2040 D3039 IC2002 Q2041 D3041 IC2006 Q2101 D3042 IC2010 Q2102 D3043 IC2011 Q2301 D4512 IC2013 Q2636 D4513 IC2303 Q2637 D4515 IC2610 Q2639 D4517 IC3101 Q2640 D4518 IC4504 Q2641 D4520 IC4507 Q3028 D4524 IC4508 Q3200 D4525 IC4509 Q4500 D4526...
Page 67 P-BOARD TNP8EPL80 - top IC’S IC801 IC802 IC3850 IC3851 IC3852 IC3853 DIODE’S D801 D802 D804 D807 D810 D814 D816 D818 D828 D829 D830 D851 D854 TRAN’S Q812 Q3850...
Page 68 P-BOARD TNP8EPL80 - bottom IC’S TRAN’S IC851 Q3852 IC3854 Q3853 IC3855 Q3854 Q3855 DIODE’S Q3856 D803 Q3857 D805 Q3858 D806 Q3859 D808 Q3860 D809 Q3863 D811 Q3864 D813 Q3865 D817 Q3866 D820 Q3867 D821 Q3868 D822 Q3869 D823 Q3870 D824 Q3871 D826 Q802...
Page 69 V-BOARD TNP8EVL60 - top TRAN’S Q1002 Q1004 Q1006 Q1007 Q1009 Q1010 DIODE’S D1001 D1002 IC’S RM1001 A2 PC1001 A2 V-BOARD TNP8EVL60 - bottom TP’S TP1001 A2 TP1002 A2 TP1003 A2 TP1004 A2 TP1005 A2 TP1006 A2 TP1007 A2 TP1008 A2...

This manual is also suitable for:

Tx-32lmd70fa Tx-32lmd71fa Tx-32lmd72fa Tx-26lmd70a Tx-26lmd70fa Tx-26lmd71fa

Panasonic TX-32LMD70A Service Manual

Quick Links

Related Manuals for Panasonic TX-32LMD70A

Summary of Contents for Panasonic TX-32LMD70A

This manual is also suitable for:

Table of Contents