Sharp CD-BA1200 (serv.man11) Service Manual ▷ View online
– 9 –
CD-BA1200H
1
Top Cabinet
1. Screw ..................... (A1) x4
9-1
2
Side Panel
1. Screw ..................... (B1) x4
9-1
(Left/right)
3
CD Player Unit/
1. Turn on the power supply,
9-2
CD Tray Cover
open the disc tray, take out the
CD cover, and close. (Note 1)
2. Screw ..................... (C1) x1
3. Hook ....................... (C2) x3
4. Hook ....................... (C3) x2
5. Socket .................... (C4) x2
CD cover, and close. (Note 1)
2. Screw ..................... (C1) x1
3. Hook ....................... (C2) x3
4. Hook ....................... (C3) x2
5. Socket .................... (C4) x2
4
Rear Panel
1. Screw ..................... (D1) x6
9-2
5
Main/Headphones 1. Screw ........................ (E1) x8
10-2
PWB
2. Socket .................... (E2) x4
3. Flat Cable .............. (E3) x1
4. Tip .......................... (E4) x1
3. Flat Cable .............. (E3) x1
4. Tip .......................... (E4) x1
6
Front Panel
1. Screw ..................... (F1) x3
10-2
7
Display PWB
1. Screw ..................... (G1) x9
10-3
2. Flat Cable .............. (G2) x1
8
Tape Mechanism 1. Open the cassette holder.
10-3
2. Screw...................... (H1) x5
9
Turntable
1. Hook ....................... (J1) x2
10-4
2. Cover ..................... (J2) x1
10
Disc Tray
1. Turn fully the lock lever in the
9-3
arrow direction.
2. While holding the lock lever, rotate
2. While holding the lock lever, rotate
10-1
the cam gear until the cam gear
rib engages with the clamp lever.
3. Push the slide holder backward to
rib engages with the clamp lever.
3. Push the slide holder backward to
10-5
engage the claw with the groove
and remove it in the direction
of the arrow. .............. (K1) x6
and remove it in the direction
of the arrow. .............. (K1) x6
11
CD Servo PWB
1. Screw ..................... (L1) x1
10-6
(Note 2)
2. Hook ....................... (L2) x2
3. Socket .................... (L3) x4
3. Socket .................... (L3) x4
12
CD Mechanism
1. Hook ....................... (M1) x2
11-1
2. Hook ....................... (M2) x3
13
Loading Motor PWB 1. Hook ....................... (N1) x5
11-1
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 and compact disc 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 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.
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.
Figure 9-2
Figure 9-3
CD-BA1200H
STEP
REMOVAL
PROCEDURE
FIGURE
Note 1:
How to open the changer manually. (Fig. 9-3)
1. In this state, turn fully the lock lever in the arrow direction
How to open the changer manually. (Fig. 9-3)
1. In this state, turn fully the lock lever in the arrow direction
through the hole on the loading chassis bottom.
2. While holding the lock lever, rotate the cam gear anticlockwise
until the cam gear rib engages with the clamp lever. (Fig. 10-1)
3. After that, push forward the CD slide holder.
Note 2:
1. After removing the connector for the optical pickup from the
Note 2:
1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of the connector to protect the optical pickup from
electrostatic damage.
front end of the connector to protect the optical pickup from
electrostatic damage.
Figure 9-1
CD-BA1200H
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front
movement.
(B1)x1
ø3x10mm
ø3x10mm
(B1)x1
ø3x10mm
ø3x10mm
Side Panel
(Right)
(Right)
Side Panel
(Left)
(Left)
Top Cabinet
Rear
Panel
Panel
(A1)x2
ø3x12mm
ø3x12mm
(A1)x2
ø3x12mm
ø3x12mm
(B1)x2
ø3x12mm
ø3x12mm
(C3)x1
(C1)x1
ø3x12mm
ø3x12mm
(D1)x6
ø3x8mm
ø3x8mm
CD Player
Unit
Unit
CD Tray Cover
Rear
Panel
Panel
Pull
(C3) x1
(C4)x2
(C2) x3
1
1
2
Main PWB
CD Servo
PWB
PWB
Lock Lever
CD Player Unit
(Bottom View)
(Bottom View)
CD-BA1200H
– 10 –
Figure 10-2
Figure 10-3
Figure 10-4
Figure 10-5
Figure 10-6
Turntable
Disc Tray
(J2) x1
CD Player Unit
(J1) x2
1
2
(K1) x3
(K1) x3
(L3) x2
(L2) x2
(L3) x2
CD Servo
PWB
Slide Chassis
(L1)x1
ø3x8mm
ø3x8mm
(E2)x2
(E2)x1
(E2)x1
(E3)x1
Headphones
PWB
PWB
(E1)x7
ø3x10mm
ø3x10mm
Main PWB
(E1)x1
ø3x10mm
ø3x10mm
(E4)x1
(F1)x3
ø3x8mm
ø3x8mm
(G1)x9
ø3x10mm
ø3x10mm
(G2)x1
(H1)x5
ø3x10mm
ø3x10mm
Display PWB
Open
Cassette
Holder
Holder
Tape
Mechanism
Mechanism
Clamp Lever
CD Player Unit
(Top View)
(Top View)
Cam Gear Rib
Figure 10-1
– 11 –
CD-BA1200H
CP-BA1200H
CP-BA1200H
Figure 11-2
Figure 11-1
Figure 11-3
(M2) x3
(M1) x1
(N1) x5
(M1) x1
Loading
Motor
PWB
Motor
PWB
CD
Mechanism
Mechanism
Cam Gear
Driver
Driver should be
pried away from
Speaker Box.
pried away from
Speaker Box.
Direction of handle
Speaker Box
(A2)x1
(A1)x1
Speaker Box
Speaker
(A3)x4
ø3.5x13mm
ø3.5x13mm
STEP
REMOVAL
PROCEDURE
FIGURE
1
Speaker
1. Net .......................... (A1) x1
11-2
2. Duct Panel .............. (A2) x1
3. Screw ...................... (A3) x4
3. Screw ...................... (A3) x4
11-3
CD-BA1200H
– 12 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism.
remove the tape mechanism.
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 12-1)
heads (TAPE 2) (See Fig. 12-1)
1. Carefully remove the record/playback head and erase head
screw (A1) x 2 pcs.
How to remove the playback head (TAPE 1)
(See Fig. 12-2)
(See Fig. 12-2)
1. Carefully remove the playback head screw (B1) x 2 pcs.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 12-3)
(See Fig. 12-3)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x1 pc., in the
direction of the arrow <B>.
direction of the arrow <B>.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the belt (TAPE 2) (See Fig. 12-4)
1. Remove the main belt (D1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (D2) x 1 pc.
2. Remove the FF/REW belt (D2) x 1 pc.
How to remove the belt (TAPE 1) (See Fig. 12-4)
1. Remove the main belt (E1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
2. Remove the FF/REW belt (E2) x 1 pc.
How to remove the motor (See Fig. 12-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 12-1
Figure 12-2
Figure 12-3
Figure 12-4
Figure 12-5
TAPE 2
TAPE1
Main Belt
(E1)x1
Main Belt
(E1)x1
TAPE2
Main Belt
(D1)x1
Main Belt
(D1)x1
TAPE 1
FF/REW
Belt
(D2)x1
Belt
(D2)x1
FF/REW
Belt
(E2)x1
Belt
(E2)x1
Motor
Motor
(D1)x1
(E1)x1
(A1)x2
Ø2 x 9mm
Ø2 x 9mm
TAPE 2
Record/Playback
Head
Head
Erase Head
(B1)x1
Ø2x9mm
Ø2x9mm
(B1)x1
Ø2x5mm
Ø2x5mm
TAPE 1
Playback
Head
Head
Pinch Roller
(C1)x1
(C1)x1
<A>
Pull
<B>
Pull
Pinch
Roller
Pawl
(F1) x2
Ø 2.6 x 5mm
Motor
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