1-1
SECTION 1
DISASSEMBLY
1.1 Before disassembling
1.1.1
Precaution
•
Be sure to disconnect the power supply unit prior to mount-
ing and soldering of parts.
•
Prior to removing a component part that needs to discon-
nect its connector(s) and its screw(s), first disconnect the
wire(s) from the connector(s), and then remove the screw(s).
•
Be careful not to damage the connector and wire etc. dur-
ing connection and disconnection.
•
When connecting the flat wire to the connector, be careful
with the flat wire direction.
•
Be careful in removing or handling the part to which some
spacer or shield is attached for reinforcement or insulation.
•
When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.
•
Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at a torque of 0.078Nom
(0.8kgfocm).
•
The bracketed ( ) WR of the connector symbol are assigned
nos. in priority order and do not correspond to those on the
spare parts list.
1.1.2 Disconnection of connectors (wires)
• Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tighten-
ing torque.
• Bit
This bit is slightly longer than those set in conventional torque
drivers.
• Tweezers
To be used for removing and installing parts and wires.
• Chip IC replacement jig
To be used for replacement of IC.
• Cleaning cloth
Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens sur-
face.
FPC connector
Flat wire
FPC connector
lock
Flat wire
B-B connector
B-B connector
B-B connector
• Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After re-
moving the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.
• Pull both ends of the connector in the arrow
direction, remove the lock and disconnect
the flat wire.
• Pull the board by both the sides in the direction of
the arrow for disconnecting the B-B connector.
Fig. 1-1-2a CONNECTOR
1.1.3
Required disassembling tools
Cleaning cloth
KSMM-01
Torque driver
YTU94088
Bit
YTU94088-003
Chip IC replacement jig
PTS40844-2
Tweezers
P-895
Fig. 1-1-3a
1.2 Removing the major parts
1.2.1 How to read the procedure table
This table shows the steps for disassembly of the major parts.
Reverse these steps when re-assembling them.
<Example>
(*1) Order of steps in Procedure
When reassembling, perform the step(s) in the reverse or-
der.
(*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 con-
nector (CN**).
(*5) Adjustment information for installation
(*1)
(*2)
(*3)
(*4)
(*5)
Step
No.
Part Name
Fig. No.
Point
Note
[1]
Top cover,
1-3a 4(S1a),(S1b),3(L1a),
<Note 1a>
2(SD1a),(P1a),(W1a),
CN1(WR1a),
Bracket
2(S1c)
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