Printed Circuit Board) Exchange; Adjustment Volume Location; Test Point Location - Panasonic TH-37PWD8BK Service Manual

9.3. P.C.B. (Printed Circuit Board) exchange
9.3.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
9.3.2. Quick adjustment after P.C.B. exchange
P.C.B.
P Board Vsus
Vda
PFC
Vlow
Csus
SC Board Vad
SS Board Ve
D, DG Board White blance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
*See the Panel label.
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
9.4.

Adjustment Volume Location

9.5.

Test Point Location

Name Test Point
TPVSUS (SS)
TPVDA (SS)
C446 (+) (-) (P)
C557 (+) (-) (P)
TPVSUS (SS)
TPVAD (SC)
TPVE (SS)
Voltage Volume
Vsus ± 2V R628 (P)
67V ± 1V R665 (P)
395V ± 0.5V R443 (P)
73V ± 0.1V R661 (P)
178V ± 0.5V R671 (P)
-90V ± 1V VR6477 (SC)
Ve ± 2V VR6074 (SS)
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TH-37PWD8BK
Remarks
*
load current : 0.4A
load current : 1.45A
*