Sanyo PLC-XF47 Service Manual page 88

Electrical Adjustments
5. Fan driving voltage adjustment
Equipment Digital voltmeter
1. Enter the service mode.
2. Change data values of rach test points to adjust the fan
driving voltage.
Group No. Fan
140 - 0
Fan - A
140 - 1 Fan - A
(Sub Power)
140 - 2 Fan - B
140 - 3
Fan - B
(PBS Fannet)
140 - 4
Fan - B
140 - 5
Fan - B
(EXH Fannet)
140 - 6 Fan - D1
140 - 7
Fan - D1
140 - 8 Fan - D2
140 - 9
Fan - D2
140 - 10 Fan - D3
140 - 11
Fan - D3
140 - 12 Fan - D4
140 - 13
Fan - D4
(Main board)
Note :
The location of each fan is refer to the Parts list.
Group Fans A: FN903, 904, 905, 916
Group Fans B: FN906, 907,908, 913, 914, 915
Group Fans C: FN909, 910, 911, 912
Group Fans D: FN917, 918, 919, 920
Connection Adjustment value
16.0 ± 0.1Vdc
TP7611
TP7611 24.0 ± 0.1Vdc
TP2661 8.0 ± 0.1Vdc
+ 0 Vdc
13.8
TP2661
- 0.1 Vdc
11.0 ± 0.1Vdc
TP2671
13.2 ± 0.1Vdc
TP2671
TPFN1 6.0 ± 0.1Vdc
13.0 ± 0.1Vdc
TPFN1
TPFN2 6.0 ± 0.1Vdc
13.0 ± 0.1Vdc
TPFN2
TPFN3 6.0 ± 0.1Vdc
13.0 ± 0.1Vdc
TPFN3
TPFN4 6.0 ± 0.1Vdc
13.0 ± 0.1Vd
TPFN4
6. Gain adjustment 1 (PC)
Equipment
Input mode
Input signal
1. Enter the service mode.
2. To start the auto-calibration for PC adjustment, select
Group "660", No. "0", and then change data value "0" to
"1".
After the auto-calibration completed, "OK" will appear
on the screen.
7. Gain adjustment 2 (Composite)
Equipment
Input mode
Input signal
1. Enter the service mode.
2. To start the auto-calibration for composite-video adjust-
ment, select Group "660", No. "0", and then change data
value "0" to "1".
After the auto-calibration completed, "OK" will appear
on the screen.
8. Gain adjustment 3 (Component)
Equipment
Input mode
Input signal
1. Enter the service mode.
2. To start the auto-calibration for component-video adjust-
ment, select Group "660", No. "0", and then change data
value "0" to "1".
After the auto-calibration completed, "OK" will appear
on the screen.
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Oscilloscope
Computer mode
16-step gray scale computer signal
(XGA)
Oscilloscope
Video mode (Composite)
100% color bar signal (NTSC)
Oscilloscope
Video mode (Component)
100% color bar signal (480i)