Panasonic TH-85PF12U, Service Manual

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TH-85PF12U
10.1.3. P.C.B. (Print Circuit Board) and Plasma Display Panel exchange
10.1.3.1. Quick adjustment after P.C.B. and Panel exchange
1. To remove P.C.B., wait 10 minute after power was off for discharge from electrolysis capacitors.
10.1.3.2. Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
*See the Panel Label.
**See chap. 10.1.6.
***See chap. 10.1.7.1.
10.1.3.3. Quick adjustment after Plasma Display Panel exchange
Adjust the following voltages with the multimeter.
*See the Panel Label.
10.1.4. Vsus adjustment
After exchange P board or Plasma Display Panel, see the Panel Label and check TPVSUS and adjust the volume.
10.1.5. Vad adjustment
After exchange SC board, check TP9 and adjust the volume.
10.1.6. Ve adjustment
1. After exchange SS board, connect the multimeter to the testpoint TPVE(SS).
2. Select Ve Mode by IIC mode. (See chap. 6.1.1., and 6.2.)
P.C.B. Name Test Point Voltage Volume Remarks
P Board (Main_1) Vsus TPVSUS (SC) Vsus ± 2V VR251 (P_Main_1) *
Vda TP9 (P_Main_1) 70V +1V, -2V Fixed
P Board (Main_2) Vsus TPVSUS (SS) Vsus ± 2V VR251 (P_Main_2) *
Vda TP9 (P_Main_2) 70V +1V, -2V Fixed
SC Board Vad TPVAD (SC) -135V ± 1V VR16600 (SC)
Vscn TPVSCN (SC) Va145V±4V
GND_base: +10V±6V Fixed
SS Board Ve** TPVE (SS) Ve ± 1V VR16001 (SS) *
D, DS Board White balance and Sub brightness for NTSC, PAL, HD, PC and 625i signals
DN Board Set Market Select Number to correct destination by MS mode. (See chap. 6.1.4)
D, DN Board Set Ve Mode until bright points disappears by IIC mode. ***
Name Test Point Voltage Volume Remarks
Vsus (SC Side) TPVSUS (SC) Vsus ± 2V VR251 (P_Main_1) *
Vsus(SS Side) TPVSUS (SS) Vsus ± 2V VR251 (P_Main_2) *
Ve Life Check Ve Mode. (See chap. 10.1.7.2.)