23
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 100
μ
s 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.
*See the Panel label.
Caution:
Absolutely do not reduce Vsus below Ve not to damage the P.C.B.
Test point
Volume
Level
T2
TPSC1 (SC)
VR16602 (SC)
210 V ± 10 V
P.C.B.
Name
Test Point
Voltage
Volume
Remarks
P Board
Vsus
TPVSUS (SS)
Vsus ± 2V
R628 (P)
*
SC Board
Vad
TPVAD (SC)
-149V ± 1V
VR16600 (SC)
SS Board
Ve
TPVE (SS)
Ve ± 1V
VR16000 (SS)
*
A Board
White balance and Sub brightness for NTSC, PAL, HD, PC and 625i signals
Summary of Contents for TH-C42HD18
Page 15: ...15 6 4 No Picture...
Page 24: ...24 8 1 4 Adjustment Volume Location 8 1 5 Test Point Location...
Page 26: ...26...
Page 32: ...32...
Page 34: ...34 10 3 Wiring 2...
Page 35: ...35 11 Schematic Diagram 11 1 Schematic Diagram Note...
Page 88: ...88 13 1 2 Accessories...
Page 89: ...89 13 1 3 Mechanical Replacement Parts List...
Page 92: ...92 13 2 Electrical Replacement Parts List 13 2 1 Replacement Parts List Notes...
