Printed Circuit Board) Exchange; Adjustment Volume Location; Test Point Location - Yamaha PDM-1 Service Manual

10.4. P.C.B. (Printed Circuit Board) exchange
10.4.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
10.4.2. Quick adjustment after P.C.B. exchange
P.C.B.
P board PFC
Vsus
Vda
SC board Vad
Vbk
SS board Ve
D1, board White balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625I signals.
*See the Panel label.

10.5. Adjustment Volume Location

10.6. Test Point Location

Item Volume
R548 (P3)
R639 (P3)
R545 (P1)
R6477 (SC)
R6670 (SC)
R6770 (SS)
Test point
P24 connector pin 1 400V ± 1V
TPVsus (SS)
TP117 (C9)
TPVAD (SC)
TPVBK (SC)
TPVE (SS)
15
Level
Vsus ± 1V*
74V ± 1V
Vad ± 1V*
Vbk ± 5V*
Ve ± 1V*
PDM-1U / G / R /