11.2. Initialization Pulse Adjust
1. Input the White signal to plasma video input.
2. Set the picture controls as follows.
Picture menu : Dynamic
PNR: OFF
Aspect : 16:9
3. Connect Oscilloscope to TPSC1 (SC).
Check and adjust that the stand down pulse(T2) period are each within specification.
Test point
Volume
Level
T2
TPSC1 (SC)
VR6602 (SC)
185 ± 10µ Sec
11.3. P.C.B. (Printed Circuit Board) exchange
11.3.1. Caution
1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors.
11.3.2. Quick adjustment after P.C.B. exchange
Adjust the following voltages with the multimeter.
P.C.B.
Name
Test Point
Voltage
Volume
Remarks
P Board
Vsus
TPVSUS (SS)
Vsus ± 2V
VR251 (P)
*
SC Board
Vad
TPVAD (SC)
-105V ± 1V
VR6600 (SC)
SC Board
Vbk
TPVBK (SC)
155V ± 1V
VR6604 (SC)
Ve
TPVE (SS)
Ve ± 1V
VR6000 (SS)
*
D, DG 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.
30
TH-50PV70L
Содержание TH-50PV70L
Страница 5: ...1 Applicable signals 5 TH 50PV70L ...
Страница 19: ...8 Location of Lead Wiring 8 1 Lead of Wiring 1 19 TH 50PV70L ...
Страница 20: ...8 2 Lead of Wiring 2 8 3 Lead of Wiring 3 20 TH 50PV70L ...
Страница 24: ...9 4 No Picture 24 TH 50PV70L ...
Страница 31: ...11 4 Adjustment Volume Location 11 5 Test Point Location 31 TH 50PV70L ...
Страница 36: ...36 TH 50PV70L ...
Страница 61: ...15 Schematic and Block Diagram 15 1 Schematic Diagram Note TH 50PV70L 61 ...
Страница 115: ...16 Exploded Views Replacement Parts List 16 1 Exploded Views 115 TH 50PV70L ...
Страница 116: ...16 2 Packing Exploded Views 1 116 TH 50PV70L ...
Страница 117: ...16 3 Packing Exploded Views 2 117 TH 50PV70L ...
Страница 118: ...16 4 Packing Exploded Views 3 118 TH 50PV70L ...
Страница 119: ...16 5 Accessory 119 TH 50PV70L ...
Страница 120: ...16 6 Replacement Parts List Notes 120 TH 50PV70L ...