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
TH-42PX500U
P.C.B. Name Test Point Voltage Volume Remarks
P Board
Vsus
TPVSUS
(SS)
Vsus ± 2V VR351 (P) *
SC Board
Vad TPVAD (SC) -105V ± 1V VR6477(SC)
SS Board
Ve TPVE (SS) Ve ± 1V
VR6145
(SS)
*
*Refer to the Panel label for the exact value.
Table 12
TH-50-PX500U
P.C.B. Name Test Point Voltage Volume Remarks
P Board
Vsus
TPVSUS
(SS)
Vsus ± 2V VR351 (P) *
SC Board
Vad TPVAD (SC) -90V ± 1V VR6801(SC)
SS Board
Ve TPVE (SS) Ve ± 1V
VR6250
(SS)
*
*Refer to the Panel label for the exact value.
Table 13
60