QT-CD180 (serv.man3). Part 1 - text - Sharp Audio Service Manual (repair manual). Page 8

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1

Rear Cabinet

1. Screw ................... (A1) x4

8-1

2. Socket .................. (A2) x1

2

Front Cabinet

1. Open the cassette holder

8-2

2. Socket .................. (B1) x1
3. Screw ................... (B2) x4
4. Screw ................... (B3) x2

3

Main PWB (With

1. Knob ..................... (C1) x1

8-3

 CD Control PWB/ 2. Socket .................. (C2) x3
 X-BASS PWB/

3. Screw ................... (C3) x5

 Headphones

4. Screw ................... (C4) x1

 PWB) (Note)

5. Socket .................. (C5) x1

4

Headphones PWB 1. Screw ................... (D1) x1

8-3

5

Tape Mechanism

1. Screw ................... (E1) x2

8-3

6

CD Control PWB

1. Screw ................... (F1) x2

8-4

(With Main PWB)

2. Bracket ................. (F2) x2

7

CD Mechanism

1. Screw ................... (G1) x3

8-4

8

Power PWB

1. Battery Lid ............ (H1) x1

8-5

2. Screw ................... (H2) x1
                 (For QT-CD180H)
2. Screw ................... (H2) x2
                 (For QT-CD180W)
3. Bracket ................. (H3) x1
4. Hook ..................... (H4) x1

9

Beat Cancel PWB 1. Screw .................... (J1) x1

8-5

(QT-CD180W Only) 2. Socket ................... (J2) x1

Note:
After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector remove to protect the optical pickup
from electrostatic damage.

(B3)x1
ø3x8mm

(B2)x4
ø3x10mm

(B3)x1
ø3x8mm

Tape Mechanism

Front
Cabinet

Main
PWB

Open

Cassette

Holder

(B1)x1

(G1)x3
ø2.5x10mm

CD Mechanism

CD Control
PWB

Top Cabinet

PWB
Washer x3

(F1)x2
ø3x10mm

(F2)x1

(F2)x1

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 and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall

outlet before starting to disassemble the unit.

3. Take off nylon bands or wire holders where they need

to be removed when disassembling the unit. After
servicing 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.

(C3)x5

ø3x10mm

(E1)x2
ø3x10mm

(C4)x1
ø2.5x10mm

(C2)x2

(C1)x1

Volume PWB

Tape
Mechanism

CD
Mechanism

CD Motor
PWB

Main PWB

Top
Cabinet

(C5)x1

(D1)x1

ø3x10mm

X-BASS
PWB

Headphones
PWB

(C2)x1

Front Cabinet

Rear Cabinet

Top Cabinet

(A1)x4
ø3x14mm

Main PWB

(A2)x1

(H2)x1
ø3x10mm

Rear Cabinet

Power PWB

Beat Cancel PWB

Driver

(H4)x1

(H1)x1

(H3)x1

(J1)x1
ø3x8mm

Power
PWB

(H2)x2
ø3x12mm

(H3)x1

Voltage
Selector

QT-CD180W
Only

For QT-CD180H

For QT-CD180W

QT-CD180W
Only

(J2)x1