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2.2 Removing the major parts
2.2.1 How to read the procedure table
This table shows the steps for disassembly of the externally fur-
nished parts and board assemblies. Reverse these steps when
re-assembling them.
Step/
Fig.
Point
Note
Part Name
Loc No.
No.
[1] Top cover
1-3a 4(S1a),(S1b),3(L1a),
<Note 1a>
2(SD1a),(P1a),(W1a),
CN1(WR1a),
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Bracket
2(S1c)
(1)
(2)
(3)
(4)
(5)
(1) Order of steps in Procedure
When reassembling, perform the step(s) in the reverse or-
der.
These numbers are also used as the identification (loca-
tion) No. of parts Figures.
(2) Part name to be removed or installed.
(3) Fig. No. showing procedure or part location.
(4) Identification of part to be removed, unhooked, unlocked,
released, unplugged, unclamped or unsoldered.
P= Spring, W= Washer, S= Screw, L= Locking tab, SD=
Solder, CN**(WR**)= Remove the wire (WR**) from the
connector (CN**).
Note:
• The bracketed ( ) WR of the connector symbol are
assigned nos. in priority order and do not corre-
spond to those on the spare parts list.
(5) Adjustment information for installation
2.2.2 Disassembly procedure
Step/
Fig.
Point
Note
Part Name
Loc No.
No.
[1]
Top cover
2-2-2d 2(S1a),(S1b)
[2]
Front panel assembly 2-2-2d
2(S2a), 4(L2a), 3(L2b)
<Note 2a>
2-2-2a
[3]
Mechanism assembly 2-2-2d
CN2001(WR3a),
<Note 3a>
2(S3a)
<Note 3c>
- - - - - - - - - - - - - - - - - - - - - - - - - -
<Note 3d>
(Drum assembly)
2-2-2b
CN1(WR3b),
2-2-2c
(S3c), (S3d), (S3e),
- - - - - - - - - - - - - - - - - - - - - - - - - -
(Head cleaner assembly)
2(L3a)
[4]
Main board assembly 2-2-2d
<Note 2a>
• When reattaching the Front panel assembly, make sure that
the door opener of the Side frame (R) is lowered in position pri-
or to the reinstallation.
• When reattaching the Front panel assembly, pay careful attention
to the switch lever of the Front panel assembly not to make it
touch the switch knob of the Main board assembly from the side.
• When reattaching the Front panel assembly, lift the Cassette
door slightly.
Door
opener
Switch
Side
lever
frame(R)
Switch
knob
Fig.2-2-2a
1-6 (No.82992)
<Note 3a>
• Be careful not to damage the connector and wire etc. during
connection and disconnection.
• When connecting the flat wire to the connector, be careful with
the flat wire direction.
<Note 3c>
• When reattaching the Mechanism assembly, be sure to align
the phase of the Rotary encoder on the Main board assembly.
• When reattaching the Mechanism assembly, set the “Mecha-
nism assembling mode”. [See “MECHANISM ASSEMBLY
SERVICE MANUAL (No. 86700)”.]
• When reattaching the Mechanism assembly to the Main board
assembly, take care not to damage the sensors and switch on
the Main board assembly.
<Note 3d>
• When reattaching the Drum assembly, secure the screws (S3c
to S3e) in the order of c, d, e.
(S3c)
(S3e)
(S3d)
(S3e)
Mechanism
(S3d)
assembly
Drum
HOOK
assembly
(S3c)
<Note 3c>
<NOTE>
Attach the Drum assembly appropriately,
since the installation state of the Drum assembly
influences the FM WAVEFORM LINEARITY
greatly.
Fig.2-2-2b
• When handling the drum assembly alone, hold it by the motor
or shaft. Be careful not to touch other parts, especially the vid-
eo heads. Also take care not to damage the connectors.
Shaft
Motor
Video heads
Fig.2-2-2c
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