- 65 -
Electrical Adjustments
Equipment Oscilloscope
Input mode
TV
mode
Input signal
Color bar pattern
1. Adjust the amplitude "
a
" by using
VR202
on the
tuner board.
Test Point
Adjustment value
(+)
TP-V
1.0
±0.1Vdc
(–)
TP-G2
(a)
v
TV video level adjustment
Equipment NO
Input mode
TV
mode
Input signal
The clearest VHF station
1. Receive a TV signal with
TV
mode and tune the
receiver to the clearest (or strongest) VHF station in
your area.
2. Set the colour control to minimum.
3. Adjust
VR201
on the tuner board until the snow
noise just disappears.
b
TV RF AGC adjustment
Equipment Digital
voltmeter
Input mode
PC_2 [Analog RGB]
mode
Input signal
16-step gray scale computer signal
1. Enter the service mode.
2. Change data values for each test points to adjust the
video signal reference voltage (V1, V2).
Item no.
Test Point
Adjustment value
1
TPV1G
6.5
±0.1Vdc
2
TPV1B
6.5
±0.1Vdc
3
TPV1R
6.5
±0.1Vdc
4
TPV2G
7.5
±0.1Vdc
5
TPV2B
7.5
±0.1Vdc
6
TPV2R
7.5
±0.1Vdc
n
Video signal center adjustment
Equipment Oscilloscope
Input mode
PC_2 [Analog RGB]
mode
Input signal
16-step gray scale computer signal
1. Enter the service mode.
2. Change data value for each test points to adjust
amplitude “
a
” to be below value.
Item no.
Test Point
Adjustment value
10
TPPANELG
10.0
±0.1Vdc
11
TPPANELB
10.0
±0.1Vdc
12
TPPANELR
10.0
±0.1Vdc
(a)
black level
black level
m
PC black Level adjustment
Equipment Oscilloscope
Input signal
16-step gray scale signal
8-1
Input mode
PC_2 [Analog RGB]
mode
Input format
720p computer
signal
8-2
Input mode
VIDEO_1 [Video]
mode
Input format
NTSC composite
signal
8-3
Input mode
VIDEO_2 [Y,Pb/Cb,Pr/Cr]
mode
Input format
720p component
signal
8-4
Input mode
VIDEO_2 [Y,Pb/Cb,Pr/Cr]
mode
Input format
1080i component
signal
1. Enter the service mode.
2. Change data values for each test points to adjust the
pedestal level and black level to be the same level
in
each mode
.
Item no.
Test Point
19
TPPANELG
20
TPPANELB
21
TPPANELR
Blac
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P
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Pedestal adjustment
4
5
4
T
TPV
7.5
±
7.5
±
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0.1Vd
dc
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Содержание PLV-45WR1Z
Страница 95: ... 95 IC Block Diagrams CXA2069Q AV Selector IC3001 FA5502M P F Controller IC601 XA2 2069Q AV Sel ctor IC3001 ...
Страница 100: ... 100 IC Block Diagrams PW172A Scaler Main CPU IC301 STR Z2156A Switching Power IC651 PW W17 W A Sca er M Main C U IC301 ...
Страница 109: ... 109 S17 S17 S17 S17 S17 S17 S17 S17 S17 S17 S16 S16 S16 S16 203 127 121 124 135 136 137 126 Mechanical Parts Fig 108 ...
Страница 110: ... 110 204 205 206 114 201 213 209 221 208 220 212 214 210 115 216 215 Optical Parts Fig 109 1 ...
Страница 118: ... 118 MEMO ...
Страница 119: ... 119 MEMO ...
Страница 120: ...SANYO Electric Co Ltd Nov 04 90 Printed in Indonesia ...
Страница 136: ...Diagrams Drawings P8FLZ SANYO Electric Co Ltd ...