Initialization Pulse Adjust; Printed Circuit Board) Remove - Panasonic TH-50PHD8UK Service Manual

TH-50PHD8UK
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 check for 20 ± 15µ Sec.
4. Connect Oscilloscope to TPSC1 (T2) and adjust VR6602 for 155 ± 10µ Sec.
9.3. P.C.B. (Printed Circuit Board) Remove
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. Remove
P.C.B.
P Board
SC Board
SS Board
D, J Board
*See the Panel label.
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
Test point
T1 TPSC1 (SC)
T2 TPSS1 (SS)
Name Test Point
Vsus TPVSUS
Vad TPVAD
Vscn TPVSCN
Vset TPVSET
Ve TPVE
Vda TPVDA
White balance, Pedestal and Sub brightness for NTSC, PAL, HD, PC and 625i signals
Volume
Fixed 20 ± 15µ Sec
VR6602(SC) 155 ± 10µ Sec
Voltage
176V ± 2V VR351 (P)
-90V ± 1V VR6801 (SC)
Vad+ 130V ± 4V Fixed
225V ± 7V Fixed
150V ± 1V VR6250 (SS)
75V ± 1V Fixed
24
Level
Volume Remarks
*
*