Initialization Pulse Adjust; Printed Circuit Board) Exchange - Panasonic TH-42PHD8BK Service Manual

9.2.

Initialization Pulse Adjust

1. Input a white signal to plasma video input.
2. Set the picture adjustment items as follows.
· Picture menu : Standard
· Color temperature : Normal
· Picture : 25
· Aspect : Full
3. Connect Oscilloscope to TPSC1 (T1) and adjust VR6523 for 10 + 10 / -5µ Sec.
4. Connect Oscilloscope to TPSC1 (T2) and adjust VR6557 for 210 ± 10µ Sec.
Test point
T1 TPSC1 (SC)
T2 TPSC1 (SC)
9.3. P.C.B. (Printed Circuit Board) exchange
9.3.1. Caution
1. To exchange P.C.B. , wait for 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
SC Board Vad
Vset
Vscn
SS Board Ve
Vda
D, J Board White balance, 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.
Volume
VR6523(SC) 10 + 10 / -5µ Sec
VR6557 (SC) 210 ± 10µ Sec
Name Test Point
TPVSUS (SS)
TPVAD (SC)
TPVSET (SC)
TPVSCN (SC)
TPVE (SS)
TPVDA (SS)
TH-42PHD8BK / TH-42PHD8BS / TH-42PHD8EK / TH-42PHD8ES
Level
Voltage
188V ± 2V VR351 (P)
-105V ± 1V VR6477 (SC)
240V ± 7V Fixed
Vad + 130V ± 4V Fixed
160V ± 1V VR6145 (SS)
70V ± 1V Fixed
23
Remarks
Volume Remarks
*
*