TH-42PM50U
10.3. P.C.B. (Printed Circuit Board) exchange
10.3.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
10.3.2. Quick adjustment after P.C.B. exchange
P.C.B.
P Board
SC Board
SS Board
D, DG Board
*See the Panel label.
10.4. Adjustment Volume Location
10.5. Test Point Location
Name
Test Point
Vsus
TPVSUS (SS)
Vda
TPVDA (SS)
PFC
C446 (+) (-) (P)
Vlow
C557 (+) (-) (P)
Vsus
TPVSUS (SS)
Vad
TPVAD (SC)
Ve
TPVE (SS)
White blance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
Voltage
Volume
Vsus ± 1V
R628 (P)
67V ± 1V
R665 (P)
395V ± 0.5V
R443 (P)
73V ± 0.1V
R661 (P)
174V ± 0.5V
R671 (P)
-90V ± 1V
VR6477 (SC)
Ve ± 2V
VR6074 (SS)
28
Remarks
*
load current : 0.4A
load current : 0.6A
*