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Model
TX-32LE7FA TX-32LE7LA TX-32LE7PA TX-32LE7F TX-32LE7FSA TX-32LE7P TX-32LE7PSA TX-26LE7FA TX-26LE7LA TX-26LE7PA TX-26LE7F TX-26LE7FSA TX-R32LE7A TX-R26LE7A
Pages
43
Size
10.76 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / GLP21MA CHASSIS
File
tx-32le7fa-tx-32le7la-tx-32le7pa-tx-32le7f-tx-32le.pdf
Date

Panasonic TX-32LE7FA / TX-32LE7LA / TX-32LE7PA / TX-32LE7F / TX-32LE7FSA / TX-32LE7P / TX-32LE7PSA / TX-26LE7FA / TX-26LE7LA / TX-26LE7PA / TX-26LE7F / TX-26LE7FSA / TX-R32LE7A / TX-R26LE7A Service Manual ▷ View online

 
Colour  LCD Television 
TX-32LE7FA 
TX-32LE7LA 
TX-32LE7PA 
TX-32LE7F/SA 
TX-32LE7P/SA 
TX-26LE7FA 
TX-26LE7LA 
TX-26LE7PA 
TX-26LE7F/SA 
TX-R32LE7A 
TX-R26LE7A 
 
Specifications
(Information in brackets [ ] refers to model 26´´) 
 
Power Source:
 
   220-240V 
AC, 
50Hz 
 
Power Consumption:  
121 [92W] 
 
Stand-by Power  
Consumption:
  
 
 
1W 
 
Aerial Impedance:  
 
75
Ω unbalanced, Coaxial Type 
 
Receiving System: 
 PAL-B/G/I, D/K, 
 
SECAM B/G, D/K, L/L’ 
 
PAL-525/60 (AV only) 
 
 
 
 
 
 
 
M.NTSC (AV only) 
 
 
 
 
 
 
 
NTSC (AV only) 
 
 
Receiving Channels:   
 
VHF E2-E12 
 
VHF H1-H2 (ITALY) 
VHF A-H (ITALY) 
 
VHF R1-R2 
VHF R3-R5 
 
VHF R6-R12 
UHF E21-E69 
 
CATV (S01-S05) 
CATV S1-S10 (M1-M10) 
 CATV S11-S20 (U1-U10) 
CATV S21-S41 (Hyperband) 
 
Operating Conditions: 
Temperature: 
   5°C 
÷ 35°C 
Humidity: 
    5% 
÷ 90% RH (non-condensing)
 
 
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), 
       32,35MHz 
(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 
75
Ω 
       Audio 
(21 
pin) 
 500mV 
rms 
10k
Ω 
       RGB 
(21 
pin) 
 0,7V 
p-p 
75
Ω 
AV1 OUT   
 
 
 
Video (21 pin)   
1V p-p 75
Ω 
       Audio 
(21 
pin) 
 500mV 
rms 
1k
Ω
 
 
 
 
 
AV2 IN   
 
 
 
Video (21 pin)   
1V p-p 75
Ω 
      Audio 
(21 
pin) 
 500mV 
rms 
10k
Ω 
      RGB 
(21 
pin) 
 0,7V 
p-p 
75
Ω 
      S-video 
IN 
  Y: 
1V 
p-p 
75
Ω 
      (21-pin) 
   C:0,3V 
p-p 
75
Ω
 
AV2 OUT   
 
 
Video (21 pin)   
1V p-p 75
Ω 
      Audio 
(21 
pin) 
 500mV 
rms 
1k
Ω 
 
AV3 IN
   
 
 
 
S-Video IN   
 
Y: 1V p-p 75
Ω
 
 
 
 
 
 
 
(4-pin) 
   C:0,286V 
p-p 
75
Ω
 
Audio (RCAx2)   
500mV rms 10k
Ω 
      Video 
(RCAx1) 
 1V 
p-p 
75
Ω
 
 
HDMI1 
    Type 
Connector 
 
COMPONENT YUV  
Video (RCAx3)   
Y:1V p-p 75
Ω 
 
 
 
 
 
 
 
 
 
 
 
Pr: 
±
0,35V[ p-p] 75
Ω 
 
 
 
 
 
 
 
 
 
 
 
Pb: 
±
0,35V[ p-p] 75
Ω
 
 
AUDIO IN   
 
 
Audio (RCAx2)   
500mV rms 10k
Ω 
 
 
 
 
 
 
(for YUV, HDMI1) 
 
AUDIO OUT 
 
 
Audio (RCAx2)   
500mV rms 1k
Ω 
 
 
 
 
 
 
 
 
 
LCD screen: 
L5EDD8Q00036 
     [L5EDD6Q00027] 
 
1366 x 768 XGA, 16:9 
 
Visible Diagonal 800mm    [660mm] 
 
Audio Output: 
2x10W RMS  
 
8
Ω impedance
 
 
Headphones: 3,5mm, 
8
Ω Impedance 
 
Accessories  
supplied : 
Remote Control 
 
2 x R6 (UM3) Batteries
 
 
Dimensions:   
  Height: 
 Width: 
 Depth: 
 
Including TV stand   
615mm  
791mm  
239mm 
      [525mm] [657mm] [239mm]
 
 
TV 
set 
only 
   563mm 
 791mm 
 
 107mm 
      [473mm] [657mm] [107mm] 
 
Net weight:   16kg  [12,5kg] 
 
Specifications are subject to change without notice. 
Weights and dimensions shown are approximate.
 
 
ORDER No. PCZ0710126CE 
GLP21MA Chassis
Service Manual 
Contents
SAFETY PRECAUTIONS ........................................... 3 
 GENERAL 
GUIDE LINES...................................... 3 
 
TOUCH – CURRENT CHECK............................... 3 
PREVENTION OF ELECTROSTATIC DISCHARGE 
(ESD) TO ELECTROSTATICALLY SENSITIVE (ES) 
DEVICES .................................................................... 4 
ABOUT LEAD FREE SOLDER (PBF)......................... 5 
 SUGGESTED 
PB 
FREE SOLDER ........................ 5 
SERVICE HINTS ........................................................ 6 
CHASSIS BOARD LAYOUT ....................................... 7 
LOCATION OF LEAD WIRING ................................... 7 
SETTING INSPECTION.............................................. 8 
SELF-CHECK ............................................................. 9 
ADJUSTMENT METHOD ......................................... 10 
WIRING DIAGRAM……………………………………..11 
BLOCK DIAGRAMS.................................................. 12 
PARTS LOCATION................................................... 15 
REPLACEMENT PARTS LIST.................................. 17 
SCHEMATIC DIAGRAMS ......................................... 29 
 
A-BOARD (1 OF 5) SCHEMATIC DIAGRAM ...... 30 
 
A-BOARD (2 OF 5) SCHEMATIC DIAGRAM ...... 31 
 
A-BOARD (3 OF 5) SCHEMATIC DIAGRAM ...... 32 
 
A-BOARD (4 OF 5) SCHEMATIC DIAGRAM ...... 33 
 
A-BOARD (5 OF 5) SCHEMATIC DIAGRAM ...... 34 
 B-BOARD 
SCHEMATIC DIAGRAM .................... 35 
 H-BOARD 
SCHEMATIC DIAGRAM .................... 36 
 P-BOARD 
SCHEMATIC DIAGRAM .................... 37 
 K-BOARD 
SCHEMATIC DIAGRAM .................... 38 
 V-BOARD 
SCHEMATIC DIAGRAM .................... 39 
CONDUCTOR VIEWS .............................................. 40 
 
Safety Precautions
General Guide Lines
1.  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. 
2.  After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly 
installed. 
3.  After servicing, make the following touch current checks to prevent the customer from being exposed to shock hazards. 
4.  Always ensure panel TKP0E16001 is correctly replaced before returning to customer (see Fig.1). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Touch-Current Check 
1.  Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 
2.  Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth 
ground such as a water pipe, as shown in Fig. 2. 
3.  Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network. 
4.  Check each exposed metallic part, and measure the voltage at each point. 
5.  Reserve the AC plug in the AC outlet and repeat each of the above measure. 
6.  The potential at any point (TOUCH CURRENT) expressed as voltage U1 and U2, does not exceed the following values: 
For a. c.: U1 = 35 V (peak) and U2 = 0.35 V (peak); 
For d. c.: U1 = 1.0 V, 
Note:
 
The limit value of U2 = 0.35 V (peak) for a. c. and U1 = 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 
2.0 mA d. c. 
The limit value U1 = 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 
kHz. 
7.  In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should 
be repaired and rechecked before it is returned to the customer. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Fig. 2 
Fig. 1 
TO 
APPLIANCES 
EXPOSED 
METAL PARTS 
Resistance values in ohms (
Ω) 
R
0
=500
Ω 
R
S
=1500
Ω 
C
S
=0.22
μF 
10k
Ω 
0.022
μF 
U
1
 
COLD 
WATER PIPE 
(EARTH GROUND)
 
V:  Voltmetr or oscilloscope 
 
(r.m.s. or peak reading) 
Measuring network for TOUCH CURRENTS 
Input resistance: 
≥ 1MΩ 
Input capacitance:
 ≤ 200pF 
Frequency range: 15Hz to 1MHz and d.c.respectively 
NOTE – Appropriate measures should be taken to obtain the correct value in case of non-sinusoidal waveforms 
U
2
 (V) 
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" components. The following techniques should be used to help reduce the incidence of 
component damage caused by electrostatic discharge (ESD). 
 
1.  Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on 
your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD 
wrist strap, which should be removed for potential shock reasons prior to applying power to the unit under test. 
2.  After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as 
aluminum foil, to prevent electrostatic charge build up or exposure of the assembly. 
3.  Use only a grounded-tip soldering iron to solder or unsolder ES devices. 
4.  Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static (ESD 
protected)" can generate electrical charge sufficient to damage ES devices. 
5.  Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices. 
6.  Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. 
(Most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil 
or comparable conductive material). 
7.  Immediately before removing the protective material from the leads of a replacement ES device, touch the protective 
material to the chassis or circuit assembly into which the device will be installed. 
Caution
  
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions. 
 
8.  Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the 
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity 
(ESD) sufficient to damage an ES device). 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
There are special components used in this equipment which are important for safety. 
These parts are marked by      in schematic diagrams, exploded views and replacement parts list. It is essential that 
these critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire, or other hazards. Do 
not modify the original design without permission of manufacturer. 
IMPORTANT SAFETY NOTICE
Page of 43
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Panasonic TX-32LE7FA / TX-32LE7LA / TX-32LE7PA / TX-32LE7F / TX-32LE7FSA / TX-32LE7P / TX-32LE7PSA / TX-26LE7FA / TX-26LE7LA / TX-26LE7PA / TX-26LE7F / TX-26LE7FSA / TX-R32LE7A / TX-R26LE7A Service Manual ▷ Download

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  • Here you can View online or download the Service Manual for the Panasonic TX-32LE7FA / TX-32LE7LA / TX-32LE7PA / TX-32LE7F / TX-32LE7FSA / TX-32LE7P / TX-32LE7PSA / TX-26LE7FA / TX-26LE7LA / TX-26LE7PA / TX-26LE7F / TX-26LE7FSA / TX-R32LE7A / TX-R26LE7A in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic TX-32LE7FA / TX-32LE7LA / TX-32LE7PA / TX-32LE7F / TX-32LE7FSA / TX-32LE7P / TX-32LE7PSA / TX-26LE7FA / TX-26LE7LA / TX-26LE7PA / TX-26LE7F / TX-26LE7FSA / TX-R32LE7A / TX-R26LE7A TV. Information contained in Panasonic TX-32LE7FA / TX-32LE7LA / TX-32LE7PA / TX-32LE7F / TX-32LE7FSA / TX-32LE7P / TX-32LE7PSA / TX-26LE7FA / TX-26LE7LA / TX-26LE7PA / TX-26LE7F / TX-26LE7FSA / TX-R32LE7A / TX-R26LE7A Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.