Assembly And Disassembly Of Cabinet Parts - JVC GR-D30UB Service Manual

1.Torque driver
Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.
2.Bit
This bit is slightly longer than those set in conventional torque
drivers.
3.Tweezers
To be used for removing and installing parts and wires.
4.Chip IC replacement jig
To be used for replacement of IC.
5.Cleaning cloth
Recommended cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.

2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS

2.2.1 Disassembly flow chart
This flowchart indicates the disassembly step for the cabinet
parts and board assembly in order to gain access to item(s) to be
serviced. When reassembling, perform the step(s) in reverse or-
der.
[1]
TOP COVER ASSEMBLY
[2]
UPPER ASSEMBLY
(Inc. VF ASSEMBLY,
SPEAKER/MONITOR)
[8]
[9]
[10]
[11] MONI-BW BOARD ASSEMBLY
[12]
[3]
FRONT COVER ASSEMBLY
(Inc.MIC)
[4]
MIC
[5]
COVER(ZOOM)
[6] REAR UNIT
[7] LOWER ASSEMBLY
1-6 (No.86722)
VF ASSEMBLY
COVER(UPPER)
MONITOR ASSEMBLY
SPEAKER
2.2.2 Disassembly method
STEP
PART
No.
[1]
Fig.C1
TOP COVER ASSEMBLY
[2]
UPPER ASSEMBLY Fig.C2-1
(Inc. VF ASSEMBLY,
SPEAKER/MONITOR)
[8]
VF ASSEMBLY Fig.C2-2
[9]
Fig.C2-3
COVER(UPPER)
/[10]
MONITOR ASSEMBLY
[11]
MONI-BW BOARD ASSEMBLY Fig.C2-4
/[12]
SPEAKER
[3]
Fig.C3
FRONT COVER ASSEMBLY
/
(Inc.MIC)
[4]
MIC
[5]
COVER(ZOOM) Fig.C4
/[6]
REAR UNIT
/[7]
LOWER ASSEMBLY
CONN.
CONNECTOR
No.
CN2a MAIN CN101
CN2b MAIN CN103
CN8a MONI-BW CN763
CN10a MONI-BW CN765
CN4 MAIN CN106
CN6 MAIN CN104
CN7a MAIN CN102
CN7b MAIN CN109
Remove the parts marked in
NOTE 8a:
Take care not to cut the FPC wire when and after removing the
VF ASSEMBLY.
NOTE 8b:
As for disassembly/assembly of [8]VF ASSEMBLY, see 2.4
ASSEMBLY AND DISASSEMBLY OF [8] VF ASSEMBLY.
NOTE 10a:
Take care not to cut the FPC when and after removing the
MONITOR ASSEMBLY.
NOTE 10b:
As for disassembly/assembly of [10] MONITOR ASSEMBLY,
see 2.5 ASSEMBLY AND DISASSEMBLY OF [10] MONITOR
ASSEMBLY.
NOTE 11a:
Before removing the MONI-BW BOARD ASSEMBLY, check
whether MEMORY CARD is inserted or not. If MEMORY
CARD is inserted, pull out the MEMORY CARD before remov-
ing the MONI-BW BOARD ASSEMBLY.
NOTE 11b:
Since the SPEAKER is soldered to the MONI-BW BOARD AS-
SEMBLY, the SPEAKER should not be separated from the
MONI-BW BOARD ASSEMBLY except when replacing the
SPEAKER.
NOTE 11c:
Take care not to lose the KNOB(SLIDE). When attaching the
KNOB(SLIDE), attach the KNOB(SLIDE) in a proper position.
NOTE 3:
After removing the FRONT COVER ASSEMBLY, OP BLOCK
ASSEMBLY is not covered with anything. Take care not to
damage the OP BLOCK ASSEMBLY when and after removing
the FRONT COVER ASSEMBLY.
Fig.
POINT NOTE
No.
S1,2(L1)
S2a,2(S2b),3(S2c)
2(S2d),S2e,S2c
L2,CN2a,b
2(S8),L8,CN8a NOTE 8a
NOTE 8b
2(S9),L9
2(S10a),CN10a,2(S10b),L10 NOTE 10a
NOTE 10b
2(S11a),2(S11b),4(S11c) NOTE 11a
BKT(HINGE),KNOB(SLIDE) NOTE 11b
NOTE 11c
COVER(JACK),S3,L3a,L3b NOTE 3
CN4
S4
S5a,3(S5b),2(L5)
CN6,S6
CN7a,b,S7a,3(S7b)
Pin No.
MONI-BW CN761
MONI-BW CN762
VF ASSEMBLY -
BL-2.5/3.5 -
MIC -
REAR UNIT -
JACK CN501
ZOOM UNIT -
.
-
-
-
-
40
10
20
32
5
11
22
16