Read Sharp WQ-730H (serv.man2) Service Manual online
WQ-730H
– 6 –
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take cassette tape out of the unit.
2. Be sure to remove the power supply plug from the wall
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take cassette tape out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit and remove
the batteries from the unit.
the batteries from the unit.
3. Take off nylon bands or wire holders where they need
be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were
before disassembling.
the unit, be sure to rearrange the leads where they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
STEP
REMOVAL
PROCEDURE
FIGURE
1
Front Cabinet/
1. Battery Compartment .....
Rear Cabinet
Lid ........................ (A1)x1
6-1
2. Screw ................... (A2)x6
3. Screw ................... (A3)x2
4. Screw ................... (A4)x1
5. Socket .................. (A5)x1
6. Tip ........................ (A6)x1
3. Screw ................... (A3)x2
4. Screw ................... (A4)x1
5. Socket .................. (A5)x1
6. Tip ........................ (A6)x1
2
Tape Mechanism 1. Socket .................. (B1)x3
6-2
2. Screw ................... (B2)x2
3. Open the cassette holder.
4. Screw ................... (B3)x6
3. Open the cassette holder.
4. Screw ................... (B3)x6
3
LED PWB
1. Socket .................. (C1)x1
6-3
4
Main PWB
1. Socket .................. (D1)x5
6-3
2. Screw ................... (D2)x3
3. Screw ................... (D3)x1
3. Screw ................... (D3)x1
5
Surround PWB/
1. Screw ................... (E1)x1
6-4
LED PWB
2. Bracket ................. (E2)x2
6
Graphic Equalizer 1. Knob ..................... (F1)x1
6-4
PWB
2. Knob holder .......... (F2)x1
3. Screw ................... (F3)x4
4. Shield Paper ........ (F4)x1
3. Screw ................... (F3)x4
4. Shield Paper ........ (F4)x1
Figure 6-3
Figure 6-1
Main
PWB
PWB
(A5) x1
(A2) x6
ø3 x20mm
ø3 x20mm
(A3) x2
ø3 x12mm
ø3 x12mm
(A4) x1
ø3 x10mm
ø3 x10mm
(A1) x1
Front Cabinet
Rear Cabinet
Main
PWB
PWB
(A6) x1
Figure 6-2
Figure 6-4
(E1) x1
ø3 x8mm
ø3 x8mm
(F3) x4
ø3 x10mm
ø3 x10mm
(F2) x1
(F1) x1
(F4) x1
Front Cabinet
LED PWB
Graphic
Equalizer
PWB
Equalizer
PWB
Surround
PWB
PWB
(E2) x1
(D3) x1
ø2.6 x8mm
ø2.6 x8mm
(D1) x4
(D1) x1
(C1) x1
(D2) x3
ø3 x8mm
ø3 x8mm
Front Cabinet
Main
PWB
PWB
Hook
LED PWB
(B2) x1
ø3 x10mm
ø3 x10mm
(B2) x1
ø3 x10mm
ø3 x10mm
(B3) x6
ø3 x10mm
ø3 x10mm
Main
PWB
PWB
(B1) x2
(B1) x1
Front Cabinet
Tape
Mechanism
Mechanism
Cassette Holder
(Left/Right)
(Left/Right)
Open
Open
E
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