BV1III omslag.indd - abo - center

5.2 Adjustments, English
Access to Service Mode
Select a SETUP menu.
Beo4: Press 0 0 GO within 3 seconds.
Select ordinary menu operation to leave Service Mode.
ABO-CENTER v/HENRIKSENS ELEKTRONIK
Operation in Service Mode.
Beo4
EXIT
GO
m
p
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Activity
Removes the menus
- Selects the sub menu to the menu line where the cursor is placed
- Stores the selected values and returns to the SERVICE MENU
- Deletes error codes in the MONITOR INFORMATION menu and
returns to the SERVICE MENU
Moves the cursor up and returns to the previous menu
Moves the cursor down and selects a sub menu in special occations
Selects new values in the menus and selects a sub menu in special
occations
Important!
When replacing the electrical chassis including PCB1 AV signal processing, PCB3
Video output, PCB4 Power supply & deflection, and PCB6 Main microcomputer, to
avoid loss of data the old EEPROM 6IC6 must be moved to the new PCB6.
At the bottom left-hand corner of PCB1, AV signal processing, there is a small
label where the adjustment values for TUNER TAKEOVER, IF ADJUST and FM
SOUND ADJUST are written. These values must be written into the old EEPROM.
When replacing PCB6 the old EEPROM 6IC6 also must be moved to the new PCB6.
Stand (Only TV’s with motorised stand)
To be adjusted when the gear box with the motor stand control PCB92 has been
mounted in the TV, or if any part of the electrical chassis that contains PCB6 with
the EEPROM 6IC6 has been replaced.
- Enter Service Mode and select the STAND line.
- Press GO, when CALIBRATION OK is displayed the centre position of the motorised
stand has been found.
For the following adjustments a standard 4:3 test pattern (e.g. Philips) should be
used.
Focus
- Adjust to optimum focusing of the vertical lines as viewed approx. 10cm/4” from
the edge of the screen by means of the FOCUS potentiometer in the EHT
transformer (see ➢6).
➢6
FOCUS
SCREEN