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ADJUSTMENTS
Measuring
Item
instrument
SCREEN
Signal
VOLTAGE
Generator
Adjustment
Remote
Control
unit
FOCUS
Signal
Adjustment
generator
B1
DC
VOLTAGE
Voltmeter
check
Test point
Adjustment part
SCREEN VR
[FBT]
OPTION 02
FOCUS VR
[FBT]
Marked
[150/115V]
on the
MAIN PWB
No. 51881
Description
1. Receive a PAL colour bar.
2. Enter the Option settings in the SERVICE MENU.
▲
▼
3. Press the function
/
4. To change bit 6, come on to it by using function
make it "1" by pressing "1" white bit 2 is blinking.
5. Observe the thin horizontal blue-white line in the middle of the
screen, and adjust the lower VR of the FBT, until the line is in
its thinnest visible thickness.
6. Then make Option 02 bit 6 "0" , by pressing "0" on the remote
control unit, although you do not see any picture.
1. Receive a PAL circle pattern.
2. Adjust the upper VR of the FBT, until you get the Optinum
focus, the sharpest picture.
1. Check whether the voltage at the point named and silk
screened as "150 / 115V" on the MAIN PWB is 150V DC.
AV28BT5ENS / AV28BT5ENB
AV28BT5EES / AV28BT5EEB
key, and Enter Option 02 .
/
and
11
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