Disassembly; Disassembly Flow Chart; How To Read The Disassembly And Assembly; Disassembly/Assembly Method - JVC HR-S9700EK Service Manual

Video cassette recorder
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1.1 DISASSEMBLY FLOW CHART

This flowchart lists the disassembling steps for the cabinet
parts and P.C. boards in order to gain access to item(s)
to be serviced. When reassembling, perform the step(s) in
reverse order. Bend, route and dress the flat cables as they
were originally laid.
Top cover, Bracket
1
Bottom cover
2
Front panel assembly
3
Drum assembly
4
Mechanism assembly
5
SW/Display board assembly
6
Main board assembly
7

1.2 HOW TO READ THE DISASSEMBLY AND ASSEMBLY

<Example>
Step/
Fig.
Part Name
Loc No.
No.
1
Top cover,
D1 4(S1a),(S1b),3(L1a),
Bracket
(1)
(2)
(3)
(1) Order of steps in Procedure
When reassembling, perform the step(s) in the reverse order.
These numbers are also used as the identification (location) 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 as-
signed nos. in priority order and do not correspond to
those on the spare parts list.
(5) Adjustment information for installation
SECTION 1

DISASSEMBLY

Point
Note
<Note 1>
2(SD1a),(P1a),
CN1(WR1a),
2(S1c)
(4)
(5)

1.3 DISASSEMBLY/ASSEMBLY METHOD

Step/
Fig.
Part Name
Loc No.
No.
1
Top cover
D1 4(S1a),(S1b)
Bracket
2
Bottom cover
D2 4(L2a), Foot (rear), <Note 2>
3
Front panel assembly D3-1 9(L3),
- - - - - - - - - - - - - - - - - - - - - -
(Membrane door assy) D3-2 (S3a),Holder,
4
Drum assembly
D4 3(S4),
(Inertia plate)
(Roller arm assy)
5
Mechanism assembly D5 CN1(WR5),2(S5a), <Note 3a>
6
SW/Display board
D6 CN7001(WR6a),
assembly
7
Main board assembly D7 2(S7a), (S7b)
<Note 2>
• When attaching the Bottom cover, make sure that the Earth
plate of the Bottom cover is passed through the hole of the
Bottom chassis and then touches the GND (Ground) on the
Main board assembly.
<Note 3a>
• Be careful not to damage the connector and wire etc. during
connection and disconnection.
When connecting the wire to the connector, be careful with the
wire direction.
<Note 3b>
• When reattaching the Front panel assembly, make sure that
the door opener a of the Cassette holder assembly is lowered
in position prior to the reinstallation.
<Note 3c>
• When fixing the screw (S3c), jointly secure the lug wires (WR3b
and WR3c).
<Note 5a>
• When it is required to remove the screws (S5a) retaining the
Mechanism assembly, please refer to the "Procedures for Low-
ering the Cassette holder assembly"(See on page 1-2).
• When removing the Mechanism assembly only, unhook the two
spacers connecting it with the Main board assembly with pliers
from the back side of the Main board assembly first, and then
remove the Mechanism assembly.
• When reattaching the Mechanism assembly to the Main board
assembly, take care not to damage the sensors on the Main
board assembly (D3001: LED, Q3002: Start sensor, Q3003:
End sensor, S3002: S cassette switch).
<Note 5b>
• The wire (WR5) has excess length that may be loose, as it is
quite long. After inserting the wire and connectors, the loose
portion of the wire should be taken up and accommodated be-
tween the A/C head base and the main deck.
<Note 6>
• The REC safety board assembly is attached to the SW/Display
board assembly. It is therefore necessary to remove the REC safety
board assembly before removing the SW/Display board assembly.
Point
Note
- - - - - - - - - - - - - - - - - -
2(S1c)
4(L2b), Foot assy,
(S2a),2(S2b),4(L2c),
3(L2d)
<Note 3a>
CN7002(WR3a)
<Note 3b>
<Note 3c>
2(S3b),Damper assy,
(S3c),(WR3b),
(WR3c)
<Note 3a>
CON1(WR4a),
CN1(WR4b)
- - - - - - - - - - - - - - - - - -
4(L4a)
- - - - - - - - - - - - - - - - - -
(P4), (L4b)
(S5b),(S5c),2(L5)
<Note 5a>
<Note 5b>
<Note 3a>
CN7191(WR6b),
<Note 6>
CN7192(WR6c),
(L6a),
REC safety board assy,
2(L6b), 4(L6c)
1-1

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