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5. Fan driving voltage adjustments
Equipment Digital voltmeter.
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Group No. Connection Adjustment or adjustment value.
140- 0 TP7611 (Fan-A) 18.0± 0.1VDC
140- 1
TP7611 (Fan-A) 24.0± 0.1VDC
140- 2
TP2661 (Fan-C) 9.0± 0.1VDC
140- 3
TP2661 (Fan-C) 14.0± 0.1VDC
140- 4
TP2671 (Fan-B) 9.0± 0.1VDC
140- 5
TP2671 (Fan-B) 14.0± 0.1VDC
6. Video center DC adjustments
Equipment Digital voltmeter.
Input mode Computer.
Input signal 16 step gray scale signal.
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Group No. Connection Adjustment or adjustment value.
200- 0 TP2526 (G-DC) 7.4 ± 0.1VDC
200- 1
TP2516 (R-DC) 7.4 ± 0.1VDC
200- 2
TP2536 (B-DC) 7.4 ± 0.1VDC
7. PSIG signal adjustments
Equipment Oscilloscope.
Input mode Computer.
Input signal 16 step gray scale signal
Set the image to "Service mode."
Adjust each item for below values with the Volume + and - buttons.
Group No.
Connection Adjustment part. Adjustment or adjustment value.
200- 3 TP2561 Amplitude-A in a figure. 10.0 ± 0.1Vp-p
200- 4 TP2571 Amplitude-A in a figure
3.8 ± 0.1Vp-p
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 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 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 Volume + 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.
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