Disassembly; Disassembly Flow Chart; How To Read The Disassembly And Assembly; Disassembly/Assembly Method - JVC HM-DH30000U Service Manual

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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 re-
verse order. Bend, route and dress the flat cables as they
were originally laid.
[1]
Top cover, Bracket
[2]
Front panel assembly
[3]
SW.REG board assembly
[4]
Digital board assembly
[5]
D-PRE/REC board assembly
[6]
Drum assembly
[7]
Mechanism assembly
REC safety board assembly,
[8]
Display board assembly,
Jack board assembly
[9]
Main board assembly
[10]
Bottom cover

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 1a>
2(SD1a),(P1a),(W1a),
CN1(WR1a),
2(S1c)
(4)
(5)

1.3 Disassembly/assembly method

Step/
Fig.
Part Name
Loc No.
No.
[1] Top cover,
D1 2(S1a), 2(S1b), (S1c)
Bracket
[2] Front panel assembly D2 CN8201(WR2a),
[3] SW.REG board
D3 CN5302(WR3a),
assembly
[4] Digital board assembly D4 CN601(WR4a),
[5] D-PRE/REC board
D5 (S5a), L5a(WR5a), <Note 2a>
assembly
[6] Drum assembly,
D6 CON1(WR6a),
(Inertia plate),
(Roller arm assembly),
(Cleaner assembly)
[7] Mechanism assembly D7 CN1(WR7a), (S7a), <Note 2a>
[8] REC safety board
D8 (S8a)
assembly,
Display board assembly,
Jack board assembly
[9] Main board assembly D9 2(S9a)
[10] Bottom cover,
D10
(Foot(2)),
(Foot assembly)
Point
Note
- - - - - - - - - - - - - - - - -
2(S1d)
<Note 2a>
2(S2a), 4(L2a), 2(L2b), <Note 2b>
3(L2c)
<Note 2a>
CN5502(WR3b),
CN5504(WR3c),
CN5303(WR3d),
CN5503(WR3e),
2(S3a)
<Note 2a>
CN603(WR4b),
<Note 4a>
CN8803(WR4c),
CN9801(WR4d),
CN8002(WR4e),
2(S4a), (S4b),
Earth plate
Shield case(PRE), <Note 5a>
CN606(WR5b),
CN3011
<Note 2a>
CN1(WR6b),
<Note 6a>
(S6a), (S6b), (S6c)
- - - - - - - - - - - - - - - - -
4(L6a)
- - - - - - - - - - - - - - - - -
(P6a), (L6b)
- - - - - - - - - - - - - - - - -
(L6c)
(S7b), (S7c), (S7d), <Note 7a>
S7e(WR7b), 2(L7a)
<Note 2a>
- - - - - - - - - - - - - - - - -
CN7002(WR8a),
<Note 8a>
4(L8a)
- - - - - - - - - - - - - - - - -
CN7191(WR8b)
- - - - - - - - - - - - - - - - -
4(L10a)
- - - - - - - - - - - - - - - - -
4(L10b)
- - - - - - - - - - - - - - - - -
(S10a), 2(S10b),
4(L10c), 3(L10d)
1-1

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