Sanyo PLV-WF20, Service Manual

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Electrical Adjustment
5. Fan driving voltage adjustment
Equipment Digital voltmeter
Lamp mode Lamps
Lamp control Normal
1. Enter the service mode.
. Change data values of each test point to adjust the fan
driving voltage.
Group No. Fan Connection Adjustment value
140 - 0 Fan - A TP7611 8.0 ± 0.1Vdc
140 - 1 Fan - A TP7611 13.2 +0 -0.1Vdc
(POWER(DC))
140 - 2 Fan - B TP761 8.0 ± 0.1Vdc
140 - 3 Fan - B TP761 13.5 +0 -0.1Vdc
(POWER(DC))
140 - 4 Fan - C TP7613 8.5 ± 0.1Vdc
140 - 5 Fan - C TP7613 13.2 +0 -0.1Vdc
(POWER(DC))
140 - 6 Fan - D1 TPFN1 7.0 ± 0.1Vdc
140 - 7 Fan - D1 TPFN1 13.5 +0 -0.1Vdc
(MAIN)
140 - 8 Fan - D TPFN 7.0 ± 0.1Vdc
140 - 9 Fan - D TPFN 13.5 +0 -0.1Vdc
(MAIN)
Note :
Group Fans A: FN901, FN90, FN903, FN904
Group Fans B: FN905, FN906
Group Fans C: FN907, FN908, FN909, FN91, FN913
Group Fans D1: FN910
Group Fans D: FN911
6. Gain adjustment 1 (PC)
Equipment Oscilloscope
Input mode Computer mode
Input signal 16-step gray scale computer signal
(WXGA)
1. Enter the service mode.
. 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.
. To start the auto-calibration for composite-video
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.
8. Gain adjustment 3 (Component)
Equipment Oscilloscope
Input mode Video mode (Component)
Input signal 100% color bar signal (480i)
1. Enter the service mode.
. To start the auto-calibration for component-video
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.
9. Common center adjustment
Equipment Oscilloscope
Input mode Computer mode
Input signal 50% (R,G,B) pattern signal
1. Enter the service mode.
. Project only one color component to the screen.
Select Group "
900 ", No. " 1 " and then change data val-
ue from " 2 " to " 0 ".
3. Change data value to obtain the minimum flicker for
each color on screen.
Group No. Screen
280 - 9 only green color picture
280 - 10 only blue color picture
280 - 11 only red color picture
4. Select Group " 900 ", No. " 1 " and then change data
value from " 0 " to " 2 ".
10. Gammma, White balance and Color shading
Correction Adjustments
If the correction of the Gamma adjustment, White bal-
ance adjustment, Color shading adjustment is neces-
sary, please adjust the “Gamma”, “White balance”, “Color
shading” by using the “PROJECTOR SERVICE TOOL”
software supplied separately.
Check and adjustment :
2 Lamps mode
Lamp 1 mode
Lamp 2 mode