Sanyo PLC-XU58, Руководство по обслуживанию

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[Adjustment Condition]
●
Input signal
Video signal .......................... 1.0Vp-p/75
Ω
terminated, 16 steps gray
scale (Composite video signal)
Computer signal .................... 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale pattern
Component Video signal ...... 0.7Vp-p/75
Ω
terminated, 16 steps gray
scale (Component video signal with
480p, 575p, 720p or 1080i format)
●
Picture control mode .............. “STANDARD” mode unless otherwise
noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering the service mode and adjusting the service
data.
White 100%
Black 100%
●
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.
Electrical Adjustments
16 steps gray scale pattern
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
VR611
as following.
AC Input Reading
230V 380V ±2V
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
Output Voltage adjustment
* This adjustment is not required even if the power
board is replaced because this adjustment is carried
out before parts shipment.
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.
2. Select group no. “
103
”, item no. “
3
” and set data value
from “
0
” to “
5
”.
3. By pressing the
SELECT
button, the G-sensor offset
adjustment will start.
4. When it has completed, the "
OK
" message will
appear.
5. By pressing any button on the projector or the remote
control unit, the "OK" message will disappear.
(Data value of Group no. “
103
”, item no. “
3
” will be
back from “
5
” to “
0
” for initial value.)
G-sensor Offset adjustment
* This adjustment is not required even if the main
board is replaced because this adjustment is carried
out before parts shipment.