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4. Removal and Replacement of Main Parts
Before Removal:
®
To remove the top panel, the cassette holder cover
must be removed
first.
Without removing it, the
top panel can not be removed.
®
To remove the cassette holder cover, pull it in the
direction of the arrow shown in Fig. 4.
@
The cassette deck is built with many smail parts
which are densely installed.
It should be handled
with special care.
1. Construction and Disassembly
This unit consists of the top panel @ , body (2)
including the mechanism and amplifier, and cabinet
@.
To
disassembly,
the unit should be placed upside
down
to avoid
scratching
it. The cabinet can be
removed by loosening the six screws.
To separate the body from the top panel, remove the
six screws (blue) indicated by arrows in Fig. 5.
2. Electrical Circuits
2—1. Removing the amplifier circuit board
To remove
the amplifier circuit board, remove the
three screws ((1), (2) and (3)) indicated by arrows in
Fig. 6.
In this stage, the record change mechanism
rod and lever are connected, but the amplifier circuit
board can be turned up 90 degrees.
Next, remove
the nut, and disconnect the rod from
the lever. The amplifier circuit board can be removed
freely.
2—2. Removing the ANRS circuit board
Remove the four screws ((4),6), © and () indicated
by arrows
in Fig.6, and remove
the ANRS
circuit
board.
2—3. Removing the oscillation circuit board
Remove the ANRS circuit board first accoring to 2—2
above,
and
remove
the
two
screws
holding
the
oscillation circuit board case.
The case now can be
removed.
Next, remove the screw securing the circuit board to
the case, and the circuit board can be removed.
2—4. Removing the RPM detector circuit board
Remove the screws ((8) and Q)) shown in Fig. 6. The
bracket is fitted with transistors for better radiation
efficiency.
It is not advisable
to remove
the print
circuit board and bracket.
=
Fig. 3
Fig. 4
CD-1667, 1667U
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