SECTION 3
DISASSEMBLY
3.1 BEFORE ASSEMBLY AND DISASSEMBLY
3.1.1 Precautions? Torque driver
? Be sure to disconnect the power supply unit prior to mountingBe sure to use to fastening the mechanism and exterior parts
and soldering of parts.because those parts must strictly be controlled for tightening
? Prior to removing a component part that needs to disconnecttorque.
its connector(s) and its screw(s), first disconnect the wire(s)
from the connector(s), and then remove the screw(s).? Bit
? When connecting/disconnecting wires, pay enough attentionThis bit is slightly longer than those set in conventional torque
not to damage the connectors.drivers.
? When inserting the flat wire to the connector, pay attention to
? Tweezers
the direction of the flat wire.
To be used for removing and installing parts and wires.
? Be careful in removing the parts to which some spacer or
shield is attached for reinforcement or insulation.? Chip IC replacement jig
? When replacing chip parts (especially IC parts), first removeTo be used for replacement of IC.
the solder completely to prevent peeling of the pattern.
? Cleaning cloth
? Tighten screws properly during the procedures. Unless
Recommended cleaning cloth to wipe down the video heads,
specified otherwise, tighten screws at a torque of 0.118N?m
(1.2kgf?cm). However, 0.118N?m (1.2kgf?cm) is a value at themechanism (tape transport system), optical lens surface.
time of production. At the time of service, perform the
procedure at a torque 10% less than 0.118N?m (1.2kgf?cm).
(See "SERVICE NOTE" as for tightening torque.)3.2 ASSEMBLY AND DISASSEMBLY OF MAIN PARTS
3.1.2 Destination of connectors3.2.1 Assembly and disassembly
When reassembling, perform the step(s) in reverse order.
Two kinds of double-arrows in connection tables respectively
show kinds of connector/wires.
STEPFig.
: Flat wire: Wire: Board to board (B-B)PARTPOINTNOTE
No.No.
: The connector of the side to remove
[1] TOP COVER ASSYFig.C1S1,2(L1)-
CONN. No.CONNECTORPIN No.
[2] UPPER ASSYFig.C2-1S2a,2(S2b),3(S2c)-
CN2aMAIN CN101MONI/ BW CN76140(Inc. VF ASSY,2(S2d),S2e,S2c
SPEAKER/MONITOR)L2,CN2a,b
CN2bMAIN CN103MIC CN7622
[8] VF ASSYFig.C2-22(S8),L8,CN8aNOTE 8a
3.1.3 Disconnection of connectors (Wires)
NOTE 8b
Wire( 1)( 2)( 3)( 4)( 5)
Wire
(1) Order of steps in Procedure
When reassembling, preform the step(s) in the reverseorder.
FPC ConnectorFPC ConnectorThese numbers are also used as the identification (location)Lock
? Pull both ends of the connector in the arrow ? Extend the locks in the direction of the arrow for
direction, remove the lock and disconnect the flat unlocking and then pull out the wire. After No. of parts Figures.
wire. removing the wire, immediately restore the locks
to their original positions because the locks are (2) Part to be removed or installed.
B-B Connector apt to come off the connector.
(3) Fig. No. showing Procedure or Part Location.
C = CABINET
(4) Identification of part to be removed, unhooked, unlocked,
B-B Connectorreleased, unplugged, unclamped or unsoldered.
B-B Connector
? Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.S = Screw
Fig.3-1-1L = Lock, Release, Hook
SD = Solder
3.1.4 Tools required for disassembly and assembly
CN = Connector
Torque driverBitTweezers
[Example]
YTU94088YTU94088-003P-895
? 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.
Chip IC replacement jigCleaning cloth
PTS40844-2KSMM-01
Fig.3-1-2
1-6 (No.YF016) |
ACEC
JVC
