Read Sony XVM-B62 Service Manual online
9
XVM-B62
5-3. SETUP FOR ADJUSTMENT
The 10-step gray scale signal from the NTSC pattern generator is
used as an adjustment signal for V COM voltage/position adjustment
as well as VIDEO adjustment.
used as an adjustment signal for V COM voltage/position adjustment
as well as VIDEO adjustment.
10-step gray scale signal, 1Vp-p, 75
Ω
The all white 50%, all white 30% signal from the NTSC pattern
generator is used as an adjustment signal for flicker and white
balance adjustment.
generator is used as an adjustment signal for flicker and white
balance adjustment.
All white 50% and All white 30% signal, 75
Ω
SECTION 5
ELECTRICAL ADJUSTMENTS
5-1. EQUIPMENT USED
The following measuring equipment are used for these electrical
adjustments:
• Oscilloscope
• NTSC pattern generator
• Stabilized power supply
• Digital voltmeter
• Frequency counter
• LCD flicker checker
• LCD color analyzer
adjustments:
• Oscilloscope
• NTSC pattern generator
• Stabilized power supply
• Digital voltmeter
• Frequency counter
• LCD flicker checker
• LCD color analyzer
5-2. CONNECTION OF EQUIPMENT
Unless otherwise specified, the equipment should be connected as
shown below.
shown below.
VIDEO OUT
(75 Ω)
NTSC pattern
generator
main board
TP410(+)
TP411(–)
TP410(+)
TP411(–)
TP413
TP415
TP414
TP415
TP414
XVM-B62
stabilized
power supply
14.4 V
power supply
14.4 V
+
–
H
1Vp-p
0.286Vp-p
0.643
Vp-p
Vp-p
All white 50%
All white 30%
0.5
Vp-p
Vp-p
0.286Vp-p
H
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