Panasonic gp6d th-42px20u th-50px20u th-42pa20u th-37pa20u update information Service Manual
P.C.B. (Printed Circuit Board) exchange procedure
1. Caution
Wait 1 minute for the electrolytic capacitors to discharge before removing
any PCB from the unit.
2. Quick adjustment after P.C.B. or Panel exchange
P.C.B.
Item
Volume
Test point
Voltage level
Panel
All items in this table
Vsus
R605 (P-Board)
TPVsus (SS)
Vsus ± 1V*
P Board
Vda
R590 (P)
TPVDA (SS Board)
67V ± 1V
Vbk
R6443 (SC)
TPVBK (SC)
155V ± 5V*
Vad
R6477 (SC)
TPVAD (SC)
-90V ± 1V*
Vset TPVSET
(SC-BOARD)
218 V ± 6V
Verify Only
SC Board
VSCN TPVSCN
(SC-BOARD)
Vad+118V ± 2V
Verify only
SS Board
Ve
R6774 (SS)
TPVE (SS)
Ve ± 1V*
D, DG Board
White Balance, Pedestal and Sub brightness for NTSC, Pal, HD, PC and 625i
signals
signals
*Refer to the Panel label for the exact value.
Adjustment Volume Locations
Figure 37
55