Sanyo M7790K - Page 6

MECHANICAL ADJUSTMENTS (continuea)
After the adjustment, tighten the screw.
Set the unit in the playback mode and check that AMSS
mechanism functions correctly as follows:
* Check if F.F WD button can be locked by pressing it.
Check if Rewind button can be locked by pressing it.
*
button can not be locked or is soon released.
After the confirmation, secure the screw with paint or glue.
RECORD/PLAYBACK HEAD ADJUSTMENT
After a head has been replaced or disassembled, adjust its
position following the procedures.
NOTE:
A Cassette with the specified pin—head distances marked on it
can be used as a very convenient gauge for the Head Position
Adjustment. (Do not use a worn cassette.)
L__Record/Playback Head
1. Set the unit in playback mode and press the Pause button.
Check that the distance from the Chassis Posts to the
Record/Playback Head is 2.0 ~ 2.1mmas illustrated.
Chassis Post mIaNe: q
Screw Screw
Record/Playback Head
Readjust the solenoid position if either F.FWD or Rewind
2. If necessary, loosen the screws’ fastening the
record/playback head and adjust the head to the specified
position by moving it.
3. After the adjustment, tighten the screws and secure them
with paint or glue.
Then, check that AMSS mechanism functions correctly.
ASO LEVER
The service part of the ASO lever is ;noit cut to avoid deforming,
as illustrated.
When replacing, cut 1.5 ~ 3mm of the part indicated in the
illustration.
ASO Lever
1.5 ~ 3mm
NOTICE ON REASSEMBLY
When reassembling the mechanism, check if the resistance
between the screw fastening the Record/Playback Head and the
Lug attached to the Chassis Plate is less than 30.
When the resistance is more, there will be noise during
recording or playback of the cassette tape.
To Screw Record/Playback
Chassis Plate
Van
Less
than
30
Lug