Initialization Pulse Adjust - Panasonic TH-C42HD18 Service Manual

8.1.2.

Initialization Pulse Adjust

1. Input the White signal to plasma video input.
2. Set the picture controls as follows.
Picture menu : Vivid
Normal : Set
Aspect : Full
3. Connect Oscilloscope to TPSC1 (SC).
Check the voltage (T2) at 100μs period on the down slop.
8.1.3. P.C.B. (Printed Circuit Board) exchange
8.1.3.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
8.1.3.2. Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
P.C.B.
P Board Vsus
SC Board Vad
SS Board Ve
A Board White balance 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.
Test point
T2 TPSC1 (SC)
Name Test Point
TPVSUS (SS)
TPVAD (SC)
TPVE (SS)
Volume
VR16602 (SC) 210 V ± 10 V
Voltage
Vsus ± 2V
-149V ± 1V
Ve ± 1V
23
Level
Volume
R628 (P) *
VR16600 (SC)
VR16000 (SS) *
Remarks