Panasonic TH-42PA50A - Troubleshooting Common Issues; Resolving Picture and Sound Problems

10.1. Driver Set-up
10.1.1. Item / Preparation
1. Input an APL 100 % white signal.
2. Set the picture controls: -
Picture mode: Normal
White balance: Cool
Aspect: 16:9
10.1.2. Adjustments
Adjust driver section voltages referring the panel data on the
panel data label.
Name Test Point Voltage Volume Remarks
Vsus TPVSUS
(SS)
Vsus ± 1V R628 (P) *
Ve TPVE (SS) Ve ± 1V VR6074 (SS) *
Vset TPVSET
(SC)
232V ± 6V Fixed
Vad TPVAD (SC) -90V ± 1V VR6477
(SC)
Vscn TPVSCN
(SC)
Vad +120V ±
3V
Fixed
Vda TPVDA (SS) 67V ± 1V R665 (P)
PFC C448 (+)(-) 395V ± 0.5V R443 (P)
Vlow C557 (+)(-) 73V ± 0.1V R661 (P) load
current :
0.4A
Csus TPVsus 164V ± 0.5V R671 (P) load
current :
1.45A
*See the Panel label.
10 Adjustment Procedure
28
TH-42PA50A / TH-42PA50H / TH-42PA50M / TH-37PA50H / TH-37PA50M