Circuit Adjustments - Sanyo PLC-XU58 Service Manual

Electrical Adjustments
●

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]
● Input signal
Video signal .......................... 1.0Vp-p/75Ω terminated, 16 steps gray
Computer signal .................... 0.7Vp-p/75Ω terminated, 16 steps gray
Component Video signal ...... 0.7Vp-p/75Ω terminated, 16 steps gray
● Picture control mode .............. "STANDARD" mode unless otherwise
Note:
* Please refer to "Service Adjustment Menu Operation" for entering the service mode and adjusting the service
data.
Output Voltage adjustment
After replacing the Power 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
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
* This adjustment is not required even if the power
board is replaced because this adjustment is carried
out before parts shipment.
scale (Composite video signal)
scale pattern
scale (Component video signal with
480p, 575p, 720p or 1080i format)
noted.
VR611
as following.
Reading
380V ±2V
16 steps gray scale pattern
White 100%
G-sensor Offset adjustment
After replacing the G-sensor circuit (IC3801, IC3851
and peripheral circuit), readjust the G-sensor offset
adjustment as follows.
1. Put the projector on a horizontal place with the
adjustable feet being minimum range and then enter
the service mode.
103
2. Select group no. "
0 5
from " " to " ".
SELECT
3. By pressing the
adjustment will start.
4. When it has completed, the "
appear.
5. By pressing any button on the projector or the remote
control unit, the "OK" message will disappear.
(Data value of Group no. "
5 0
back from " " to " " for initial value.)
* This adjustment is not required even if the main
board is replaced because this adjustment is carried
out before parts shipment.
-22-
Black 100%
3
", item no. " " and set data value
button, the G-sensor offset
OK
" message will
103 3
", item no. " " will be