-75-
Electrical Adjustment
c
LCD panel L/R setting
1. Enter the service mode.
2. Check the data value. (140 - 0)
Group No. Value Panel type
140 - 0 0 L
140 - 0 20 R
3. To change the set panel type, select 140-1.
Group No. Value Panel type
140 - 1 0 L
140 - 1 10 Initial
140 - 1 20 R
The initial data of 140 -1 is "10". To set the value for Type
L, set the value to "0". To set the value for Type R, set the
value to "20". When the value set "0" or "20", it automati-
cally returns to initial data "10" after the setup.
There are two type( Type L, Type R) for the LCD/Prism
Assy. The adjustment data is stored in the memory IC
(IC1371) on the Main Board.
As the used type is indicated on the Optical unit and
LCD/Prism Assy, perform this adjustment to match to its
type indication.
v
Fan voltage adjustment
Equipment Digital voltmeter (DUTY)
Test points K36Z-1(+) and K36Z-3(-)
Lamp mode 4 Lamps
Lamp control Normal
1. Enter the service mode.
2. Change data values to adjust the reading of the duty
with the voltmeter as follows;
Group No.
Adjustment value(DUTY)
250 - 0 30 ±1%
250 - 1 90 ±1%
x Power supply adjustment
Equipment Digital voltmeter
Test points K6F-1(+) and K6F-5(-) on AC-DC
board
Lamp mode 4-Lamps
Input AC Voltage 230V
Adjust the volumes to be specified voltage as follow;
Volume Voltage
VR631 24.5 ±0.1Vdc
This adjustment is not required even if the AC-DC
board is replaced because this adjustment is carried
out before parts shipment.
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