Panasonic TH-50PHD8UK - 50" Plasma Panel, Service Manual, Page: 2 / 153

1 Applicable signals 4
2 Safety Precautions 5
2.1. General Guidelines 5
3 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
4 About lead free solder (PbF) 7
5 PCB Structure sheet of GPH8D chassis 8
6 Service Hint 9
7 Disassembly 10
7.1. Removal of the Back Cover 10
7.2. Removal of the HA-Board and the HB-Board 10
7.3. Removal of the Slot Block 10
7.4. Removal of the J-Board 10
7.5. Removal of the HX-Board 11
7.6. Removal of the PB-Board 11
7.7. Removal of the D-Board 11
7.8. Removal of the P-Board 12
7.9. Removal of the H3-Board 12
7.10. Removal of the SU-Board and the SD-Board 12
7.11. Removal of the SC-Board 13
7.12. Removal of the SS2-Board and the SS3-Board 13
7.13. Removal of the SS-Board 13
7.14. Removal of the C1, C2, C3, C4, C5 and the C6-Board 14
7.15. Removal of the S1-Board 15
7.16. Removal of the Fan 16
7.17. Removal of the Escutcheon 16
7.18. Removal of the V1-Board and V2-Board 17
7.19. Removal of the Plasma Panel 17
8 Location of Lead Wiring 21
9 Adjustment Procedure 23
9.1. Driver Set-up 23
9.2. Initialization Pulse Adjust 24
9.3. P.C.B. (Printed Circuit Board) Remove 24
9.4. Adjustment Volume Location 25
9.5. Test Point Location 25
10 Service mode 26
10.1. CAT (computer Aided Test) mode 26
10.2. IIC mode structure (following items value is sample data.)
28
11 Alignment 29
11.1. PC / RGB panel white balance 29
11.2. HD / 525ip / 625ip panel white balance 31
12 Trouble shooting guide 33
12.1. Self Check 33
12.2. No Power 34
12.3. No Picture 34
12.4. Local screen failure 35
13 Option Setting 36
14 Circuit Board Layout 39
14.1. P-Board 39
Component
Y:1.0 Vp-p (75-ohm : include sync)
P
B
/ C
B
:0.7 Vp-p (75-ohm)
P
R
/ C
R
:0.7 Vp-p (75-ohm)
HD, VD / 1.0 - 5.0 Vp-p (high impedance)
AUDIO IN (M3 JACK) 0.5 Vrms (high impedance)
SERIAL EXTERNAL CONTROL TERMINAL (D-SUB 9PIN) RS-232C COMPATIBLE
SPEAKERS (6
Ω
) 16 W [8 W + 8 W] (10 % THD)
Accessories Supplied
Remote Control Transmitter EUR7636070R
Batteries 2 × AA Size
Fixing bands (TMME203 or TMME187) × 2
Dimensions (W × H × D) 47.6” (1,210 mm) × 28.5” (724 mm) × 3.7” (95 mm)
(exclusive of protruding portion)
Mass (weight)
main unit only approx. 94.8 lbs
with speakers approx. 103.6 lbs
Notes:
·
Design and specifications are subject to change without notice. Mass and dimensions shown are approximate.
CONTENTS
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TH-50PHD8UK