Circuit Adjustments - Sanyo PLC-XE32 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 following adjust-
ments except requiring the readjustments in servicing otherwise it may cause loss of performance and product
safety.
WArNING : uSe uV rAdIAtIoN eYe ANd SKIN Pro-
cAutIoN:
to prevent suffer of uV radiation, those adjustments must be
completed within 25 minutes.
[Adjustment Condition]
● Input signal
Video signal ................................. 1.0Vp-p/75W terminated, 16 steps gray scale
Computer signal ........................... 0.7Vp-p/75W terminated, 16 steps gray scale
Component Video signal ........... 0.7Vp-p/75W terminated, 16 steps gray scale
● 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.
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
. Adjust the voltage by using VR611 as following.
AC Input Reading
30V 380V ±V
Caution:
Be sure to connect the lamp when taking this adjustment.
* This adjustment is not required even if the power board
is replaced because this adjustment is carried out before
parts shipment.
tectIoN durING SerVIcING.
(Composite video signal)
pattern
(Component video signal with 480p, 575p,
70p or 1080i format)
K6d
White 100%
z Panel type check and Setting
* Before setting, you need to check which type of LCD panel
is placed on the projector according to the item "LCD Panel/
Prism Ass'y removal" in the chapter "Optical Parts Disassem-
bly".
.
1. Enter the service mode.
. Panel Type Check
290
Select group no. "
as follows;
Data value: 0
Data value: 0
3. Panel Type Setting
290
Select group no. "
value from 10 to 0 or 0 depending on your LCD Panel
type. When the data value reaches 0 or 0, it returns to 10
quickly. The gamma-characteristics changes according to
your selection.
-5-
16 steps gray scale pattern
Black 100%
0
", item no. " ". Check the data value
For L-Type of LCD Panel
For R-Type of LCD panel
1
", item no. " " and change data