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3. The voltage check of the 3D-Noise-reduction-PLL circuit.
Equipment
Digital voltmeter
Connections :
+ TP5103/ - chassis ground.
Input mode
AV
Input signal
Color bar signal(PAL)
Picture condition
Normal
Check that the voltage of the TP5103 is correct.
The voltage of the TP5103 is outputted between 2.85 V and 2.95 VDC.
If the voltage of the TP5103 is not correctly, check the periphery of the 3D-Noise-
reduction-PLL circuit and repair it.
4. AV Color and Tint adjustments
Equipment
Oscilloscope.
Input mode
AV.
Input signal
Color bar signal(NTSC)
Picture condition
Normal.
Connections
+ TP221 or TP5183
- chassis ground.
Set the image to "Service mode."
Adjust each item for below values with the and - buttons.
Group No.
Adjustment part.
Adjustment or adjustment value.
1000-
25
Amplitude-A in a figure.
0.45± 0.02Vp-p
1000-
24
Part-B, C and D in a figure.
Make those the same width.
A
B
C
D
Содержание PLC-XF31
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