Initialization Pulse Adjust; P.c.b. (Printed Circuit Board) Exchange; Quick Adjustment After P.c.b. Exchange - Panasonic TC-P50X1 Service Manual
50 inch class 720p plasma hdtv
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Also See for TC-P50X1:
- Operating instructions manual (58 pages) ,
- Instrucciones de operación (54 pages) ,
- Technical manual (77 pages)
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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 : 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
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)
VR16601 (SC)
Name
Test Point
TPVSUS (SS)
TPVAD (SC)
Volume
Level
210 V ± 10 V
Voltage
Volume
Vsus ± 2V
R737 (P)
-180V ± 1V
VR16600 (SC)
24
Remarks
*
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