Sanyo PLC-XF41 Service Manual page 46

3. The voltage check of the 3D-Noise-reduction-PLL circuit.
Equipment
Connections :
Input mode
Input signal
Picture condition
Check that the voltage of TP5103 is 2.9± 0.5VDC.
If it is not 2.9± 0.5VDC, check the periphery of the 3D-Noise-reduction-PLL cir-
cuit and repair it.
4. AV Color and Tint adjustments
Equipment
Input mode
Input signal
Picture condition
Connections
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Group No.
Adjustment part.
1000- 25
Amplitude-A in a figure.
1000- 24
Part-B, C and D in a figure.
Digital voltmeter
+ TP5103/ - chassis ground.
AV
Color bar signal(PAL)
Normal
Oscilloscope.
AV.
Color bar signal(NTSC)
Normal.
+ TP221 or TP5183
- chassis ground.
Adjustment or adjustment value.
0.45± 0.02Vp-p
Make those the same width.
B
C
D
A
5. Fan driving voltage adjustments
Equipment
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Connection
Group No.
TP7611 (Fan-A)
140- 0
TP7611 (Fan-A)
140- 1
TP2661 (Fan-C)
140- 2
TP2661 (Fan-C)
140- 3
TP2671 (Fan-B)
140- 4
TP2671 (Fan-B)
140- 5
6. Video center DC adjustments
Equipment
Input mode
Input signal
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Connection
Group No.
TP2526 (G-DC)
200- 0
TP2516 (R-DC)
200- 1
TP2536 (B-DC)
200- 2
7. PSIG signal adjustments
Equipment
Input mode
Input signal
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Connection
Group No.
200- 3 TP2561
200- 4 TP2571
A
-46-
Digital voltmeter.
Adjustment or adjustment value.
9.0± 0.1VDC
14.0± 0.1VDC
10.1± 0.1VDC
13.0± 0.1VDC
9.5± 0.1VDC
14.0± 0.1VDC
Digital voltmeter.
Computer.
16 step gray scale signal.
Adjustment or adjustment value.
7.4 ± 0.1VDC
7.4 ± 0.1VDC
7.4 ± 0.1VDC
Oscilloscope.
Computer.
16 step gray scale signal
.
Adjustment part Adjustment or adjustment value.
. 10.0 ± 0.1Vp-p
Amplitude-A in a figure
3.8 ± 0.1Vp-p
Amplitude-A in a figure