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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
Panel
P Board
Vsus
Vda
SC Board
Vbk
Vad
Vset
VSCN
SS Board
Ve
D, DG Board
White Balance, Pedestal and Sub brightness for NTSC, Pal, HD, PC and 625i
signals
*Refer to the Panel label for the exact value.
Adjustment Volume Locations
Volume
All items in this table
R605 (P-Board)
TPVsus (SS)
R590 (P)
TPVDA (SS Board)
R6443 (SC)
TPVBK (SC)
R6477 (SC)
TPVAD (SC)
TPVSET
218 V ± 6V
(SC-BOARD)
TPVSCN
Vad+118V ± 2V
(SC-BOARD)
R6774 (SS)
TPVE (SS)
Figure 37
55
Test point
Voltage level
Vsus ± 1V*
67V ± 1V
155V ± 5V*
-90V ± 1V*
Verify Only
Verify only
Ve ± 1V*
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