G Circuit Adjustments - Sanyo PLC-XU32 Service Manual

Electrical Adjustments

G Circuit Adjustments

CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow-
ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of per-
formance and product safety.
[Adjustment Condition]
G Input signal
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray scale (Composite video signal)
Computer signal...................... 0.7Vp-p/75Ω terminated, 16 steps gray scale pattern (XGA)
G Picture control mode ...................... "STANDARD" mode unless otherwise noted.
Note:
* Please refer to "Service Adjustment Menu Operation" for entering to the service mode and adjusting the service
data.
Output Voltage adjustment
After replacing the Power Board, PF.C. Board, readjust
the Output voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-) of
K6D
.
2. Adjust the voltage by using
AC Input
230V
or 120V
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
Fan Voltage adjustment
1. Enter the service mode and select group no. "
0
item no. " ". Set data value to "
2. Connect a digital voltmeter to test point "TP12V1" (+)
and chassis ground (-). Select item no. "
data value to adjust voltage to be 7.5 ±0.1V.
3. Connect a digital voltmeter to test point "TP12V2" (+)
and chassis ground (-). Select item no. "
change data value to adjust voltage to be 9.0 ±0.1V.
11
4. Select group no. " " and item no. "
3
value to " ".
5. Connect a digital voltmeter to test point "TP12V1" (+)
and chassis ground (-). Select item no. "
data value to adjust voltage to be 13.5 ±0.1V.
6. Connect a digital voltmeter to test point "TP12V2" (+)
and chassis ground (-). Select item no. "
data value to adjust voltage to be 13.5 ±0.1V.
VR611
as following.
Reading
370V ±2V
340V ±2V
[For PLC-XU32/XU37]
11
1
".
1
" and change
2
" and
0
" and set data
3
" and change
4
" and change
Fan Voltage adjustment
1. Enter the service mode and select group no. "
0
item no. " ". Set data value to "
2. Connect a digital voltmeter to test point "TP12V1" (+)
and chassis ground (-). Select item no. "
data value to adjust voltage to be 8.0 ±0.1V.
3. Connect a digital voltmeter to test point "TP12V2" (+)
and chassis ground (-). Select item no. "
change data value to adjust voltage to be 9.0 ±0.1V.
4. Select group no. "
3
value to " ".
5. Connect a digital voltmeter to test point "TP12V1" (+)
and chassis ground (-). Select item no. "
data value to adjust voltage to be 13.5 ±0.1V.
6. Connect a digital voltmeter to test point "TP12V2" (+)
and chassis ground (-). Select item no. "
data value to adjust voltage to be 13.5 ±0.1V.
" and
-26-
[For PLC-XU33/XU38]
1
".
1
" and change
2
" and
11 0
" and item no. " " and set data
3
" and change
4
" and change
11
" and