Advertisement
3.1
BEFORE ASSEMBLY AND DISASSEMBLY
3.1.1 Precautions
• Be sure to disconnect the power supply unit prior to mounting
and soldering of parts.
• Prior to removing a component part that needs to disconnect
its connector(s) and its screw(s), first disconnect the wire(s)
from the connector(s), and then remove the screw(s).
• When connecting/disconnecting wires, pay enough attention
not to damage the connectors.
• When inserting the flat wire to the connector, pay attention to
the direction of the flat wire.
• Be careful in removing the parts 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
otherwise specified, tighten screws at a torque of 0.098N
·
(1.0kgf
cm). However, as this is a required value at the time of
production, use the value as a measuring stick when
proceeding repair services. (See "SERVICE NOTE" as for
tightening torque.)
3.1.2 Destination of connectors
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
: Flat wire
: Wire
: The connector of the side to remove
CONN. No.
CONNECTOR
CN2a
MAIN
CN101
CN2b
MAIN
CN103
3.1.3 Disconnection of connectors (Wires)
Wire
FPC Connector
· Pull both ends of the connector in the arrow
direction, remove the lock and disconnect the flat
wire.
Wire
FPC Connector
· Pull the both ends of the board in the direction of the
arrow, and remove the Connector.
Wire
Lock
FPC Connector
B-B Connector
B-B Connector
· Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.
Fig.3-1-1
1-6 (No.YF146)
SECTION 3
DISASSEMBLY
: Board to board (B-B)
PIN No.
MONI BW
CN761
40
10
MINI BW
CN762
Wire
Lock
FPC Connector
· Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After
removing the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.
Lock
Wire
FPC
Connector
· Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After
removing the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.
· Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After
removing the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.
B-B Connector
3.1.4 Tools required for disassembly and assembly
Torque driver
YTU94088
Chip IC replacement jig
PTS40844-2
·
m
•
Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
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 cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.
3.2
ASSEMBLY AND DISASSEMBLY OF MAIN PARTS
3.2.1 Assembly and disassembly
When reassembling, perform the step(s) in reverse order.
STEP
PART
No.
[1]
TOP COVER ASSY
[2]
UPPER ASSY
(Inc. VF ASSY,
SPEAKER/MONITOR)
[8]
E.VF UNIT(B/W)
( 1)
( 2)
(∗1) Order of steps in Procedure
When reassembling, preform the step(s) in the reverseorder.
These numbers are also used as the identification (location)
No. of parts Figures.
(∗2) Part 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.
S = Screw
SD = Solder
[Example]
• 4 (S1a) = Remove 4 S1a screws.
• 3 (L1a) = Disengage 3 L1a hooks.
• 2 (SD1a) = Unsolder 2 SD1a points.
• CN1a = Remove a CN1a connector.
(∗5) Adjustment information for installation.
Bit
Tweezers
YTU94088-003
Cleaning cloth
KSMM-01
Fig.3-1-2
Fig.
POINT
No.
4(S1a), 3(L1a),CN1a
C1
(S2a),2(S2b),3(S2c)
C2-1
2(SD1a),
L2,CN2a,b
C2-2
2(S8),L8,CN8a
( 3)
( 4)
L = Lock, Release, Hook
CN = Connector
P-895
NOTE
-
-
NOTE 8
( 5)
Advertisement
