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6.4.
P.C.B. (Printed Circuit Board) exchange
6.4.1.
Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
6.4.2.
Quick adjustment after P.C.B. exchange
P.C.B.
P board
SC board
SS board
D board
6.5.
Adjustment Volume Location
6.6.
Test Point Location
Item
Volume
PFC
R426 (3)
Vsus
R625 (P3)
Vbk
R498 (P1)
Vda
R519 (P1)
Vad
R6477
Ve
R6774
White balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625I signals.
Test point
P4 connector pin 1 400V ± 1 V
TPVsus (SS)
TPVBK (SC)
TPVDA (SS)
TPVAD (SC)
TPVE (SS)
11
Level
175V ± 1 V
160V ± 5 V
67V ± 1 V
-90 ± 1 V
150 ± 1 V
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