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8.1.2.
Initialization Pulse Adjust
1. Input the White signal to plasma video input.
2. Set the picture controls as follows.
Picture menu : Dynamic
PNR : Min
Aspect : 16:9
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
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)
Volume
VR16601 (SC)
250 V ± 10 V
Voltage
Vsus ± 2V
- 185V ± 2V
27
Level
Volume
VR251 (P)
*
VR16600 (SC)
Remarks
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