- 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 Connection
Adjustment value
140 - 0 Fan - A TP7611 16.0 ± 0.1Vdc
140 - 1 Fan - A TP7611 24.0 ± 0.1Vdc
(Sub Power)
140 - 2 Fan - B TP2661 8.0 ± 0.1Vdc
140 - 3 Fan - B TP2661 13.8
(PBS Fannet)
140 - 4 Fan - B TP2671 11.0 ± 0.1Vdc
140 - 5 Fan - B TP2671 13.2 ± 0.1Vdc
(EXH Fannet)
140 - 6 Fan - D1 TPFN1 6.0 ± 0.1Vdc
140 - 7 Fan - D1 TPFN1 13.0 ± 0.1Vdc
140 - 8 Fan - D2 TPFN2 6.0 ± 0.1Vdc
140 - 9 Fan - D2 TPFN2 13.0 ± 0.1Vdc
140 - 10 Fan - D3 TPFN3 6.0 ± 0.1Vdc
140 - 11 Fan - D3 TPFN3 13.0 ± 0.1Vdc
140 - 12 Fan - D4 TPFN4 6.0 ± 0.1Vdc
140 - 13 Fan - D4 TPFN4 13.0 ± 0.1Vd
(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
+ 0 Vdc
- 0.1 Vdc
6. Gain adjustment 1 (PC)
Equipment Oscilloscope
Input mode Computer mode
Input signal 16-step gray scale computer signal
(XGA)
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 Oscilloscope
Input mode Video mode (Composite)
Input signal 100% color bar signal (NTSC)
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 Oscilloscope
Input mode Video mode (Component)
Input signal 100% color bar signal (480i)
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.
To Next Page
Loading...
