Read Sharp CD-DP900 (serv.man15) Service Manual online
CD-DP900H/E
– 12 –
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 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 suffcient care on static electricity of integrated
circuits and other circuits when servicing.
1
Top Cabinet
1. Screw ..................... (A1) x4
12-1
2
Side Panel
1. Screw ..................... (B1) x4
12-1
(Left/right)
2. Screw ..................... (B2) x4
3
CD Tray Cover/
1. Turn on the power supply,
12-2
CD Player Unit
open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Screw ..................... (C1) x1
3. Screw ..................... (C2) x1
4. Hook ....................... (C3) x3
5. Hook ....................... (C4) x2
6. Socket .................... (C5) x2
the CD cover, and close.
(Note 1)
2. Screw ..................... (C1) x1
3. Screw ..................... (C2) x1
4. Hook ....................... (C3) x3
5. Hook ....................... (C4) x2
6. Socket .................... (C5) x2
4
Rear Panel
1. Screw ..................... (D1) x8
12-2
2. Socket .................... (D2) x1
13-1
5
Main PWB
1. Screw ..................... (E1) x2
13-1
2. Socket .................... (E2) x3
3. Lug Wire ................. (E3) x1
4. Flat Cable .............. (E4) x1
3. Lug Wire ................. (E3) x1
4. Flat Cable .............. (E4) x1
6
Power PWB
1. Screw ..................... (F1) x2
13-2
2. Screw ..................... (F2) x2
3. Socket .................... (F3) x2
4. Flat Wire ................. (F4) x1
5. Push Rivet ............. (F5) x5
6. Socket .................... (F6) x1
3. Socket .................... (F3) x2
4. Flat Wire ................. (F4) x1
5. Push Rivet ............. (F5) x5
6. Socket .................... (F6) x1
7
Front Panel
1. Screw ..................... (H1) x3
13-2
8
Display PWB/
1. Screw ..................... (J1) x12
13-3
2. Flat Cable .............. (J2) x1
9
Tape Mechanism
1. Open the cassette holder
13-3
2. Screw ..................... (K1) x5
10
Headphones PWB 1. Screw ..................... (L1) x1
13-3
11
Turntable
1. Hook ....................... (M1) x2
13-4
2. Cover ..................... (M2) x1
12
Loading Tray
1. Hook ....................... (N1) x2
14-1
2. Hook ....................... (N2) x6
13
CD Servo PWB
1. Screw ..................... (P1) x2
14-2
(Note 2)
2. Hook ....................... (P2) x1
3. Socket .................... (P3) x4
3. Socket .................... (P3) x4
14
CD Mechanism
1. Hook ....................... (Q1) x2
14-3
2. Hook ....................... (Q2) x3
15
Loading Motor PWB 1. Hook ....................... (R1) x5
14-3
STEP
REMOVAL
PROCEDURE
FIGURE
Side Panel
(Left)
(Left)
Top Cabinet
Side Panel
(Right)
(Right)
(A1)x2
ø3x12mm
ø3x12mm
(A1)x2
ø3x12mm
ø3x12mm
(B1)x2
ø3x10mm
ø3x10mm
(B1)x2
ø3x10mm
ø3x10mm
(B2)x4
ø3x10mm
ø3x10mm
1
1
2
(C5)x2
CD Servo
PWB
PWB
Pull
CD Player
Unit
Unit
CD Tray Cover
Rear
Panel
Panel
Main PWB
(C2)x1
ø3x10mm
ø3x10mm
(D1)x7
ø3x10mm
ø3x10mm
(D1)x1
ø3x12mm
ø3x12mm
Hook
(C3)x3
(C3)x3
Transport screw
(C1)x1
(C1)x1
Hook
(C4)x1
(C4)x1
Hook
(C4)x1
(C4)x1
Figure 12-2
Figure 12-1
Note 1: How to open the changer manually. (Fig. 12-3)
1. In this state, turn fully the lock lever in the arrow direction through
1. In this state, turn fully the lock lever in the arrow direction through
the hole on the loading tray bottom.
2. After that, push forward the slide chassis.
Note 2:
1. After removing the connector for the optical pickup from the
1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electro-
static damage.
of the connector so as to protect the optical pickup from electro-
static damage.
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.
Figure 12-3
Lock Lever
CD Player Unit
(Bottom View)
(Bottom View)
– 13 –
CD-DP900H/E
(E2)x1
(E2)x2
(E3)x1
(E4)x1
Power
Amp.
PWB
Amp.
PWB
Power PWB
Main
PWB
PWB
Main
PWB
PWB
(D2)x1
(E1)x2
ø3x12mm
ø3x12mm
Front Panel
(F1)x2
ø3x10mm
ø3x10mm
(H1)x3
ø3x10mm
ø3x10mm
(F2)x2
ø3x12mm
ø3x12mm
(F3)x2
(F6)x1
(CD-DP900H only)
(F4)x1
(F5)x5
Push
Power PWB
Headphones
PWB
PWB
Headphones
PWB
PWB
Open
Cassette
Holder
Holder
Display PWB
Tape
Mechanism
Mechanism
(J1)x12
ø3x10mm
ø3x10mm
(K1)x5
ø3x10mm
ø3x10mm
(L1)x1
ø3x10mm
ø3x10mm
(J2)x1
Figure 13-2
Figure 13-1
Figure 13-3
Turntable
CD Player Unit
Slide
Chassis
Chassis
(M1) x2
(M 2) x1
Figure 13-4
CD-DP900H/E
– 14 –
1
Front Panel
1. Front Panel ............ (A1) x1
14-4
2
Woofer
1. Screw ..................... (B1) x4
14-4
3
Tweeter
1. Screw .................... (C1) x2
14-4
STEP
REMOVAL
PROCEDURE
FIGURE
(Q2) x3
Hook
(Q1) x1
(Q1) x1
CD
Mechanism
Mechanism
Loading
Motor
PWB
Motor
PWB
Hook
(Q1) x1
(Q1) x1
Hook
(R1) x5
(R1) x5
Loading
Tray
Tray
(C1)x2
ø3x10mm
ø3x10mm
(B1)x4
ø4x12mm
ø4x12mm
,,
,,,,
,,,,,,
,,,,,,,,
,,,,,,,,,,
,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,,,
,,,,,,,,,,,
,,,,,,,,,
,,,,,,,
,,,,,
,,,
Woofer
Front Panel
( A1 ) x1
( A1 ) x1
Screwdriver
Tweeter
Hook
(N2) x3
(N2) x3
Hook
(N1) x1
(N1) x1
Hook
(N1) x1
(N1) x1
Hook
(N2) x3
(N2) x3
Loading
Tray
Tray
Hook
(N1) x1
(N1) x1
Slide
Chassis
Chassis
1
2
(P3) x2
Hook
(P2) x1
(P2) x1
(P3) x2
CD Servo
PWB
PWB
Loading
Tray
Tray
(P1)x2
ø3x10mm
ø3x10mm
Figure 14-1
Figure 14-3
Figure 14-2
Figure 14-4
– 15 –
CD-DP900H/E
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 7 and 9 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. 15-1)
heads (TAPE 2) (See Fig. 15-1)
1. When you remove the screws (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removed.
head can be removed.
How to remove the playback head (TAPE 1)
(See Fig. 15-2)
(See Fig. 15-2)
1. When you remove the screws (B1) x 2 pcs., the playback
head can be removed.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 15-3)
(See Fig. 15-3)
1. Carefully bend the pinch roller pawl in the direction of the
arrow <A>, and remove the pinch roller (C1) x 1 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. 15-4)
(See Fig. 15-4)
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. 15-4)
(See Fig. 15-4)
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. 15-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 15-1
Figure 15-2
Figure 15-3
Figure 15-4
Figure 15-5
(A1)x2
Ø2x9mm
Ø2x9mm
TAPE 2
Record/Playback
Head
Head
Erase Head
Clutch Ass'y
(B1)x2
Ø2x9mm
Ø2x9mm
TAPE 1
Playback
Head
Head
Clutch Ass'y
Pinch Roller
(C1)x1
(C1)x1
<A>
<B>
Pinch
Roller
Pawl
Roller
Pawl
Pull
TAPE 2
TAPE 1
Main Belt
(E1)x1
Main Belt
(E1)x1
TAPE 2
Main Belt
(D1)x1
Main Belt
(D1)x1
TAPE 1
Main Belt
(D1)x1
(D1)x1
Main Belt
(E1)x1
(E1)x1
FF/REW
Belt
(D2)x1
Belt
(D2)x1
FF/REW
Belt
(E2)x1
Belt
(E2)x1
Motor
Motor
(F1)x2
Ø 2.6x5mm
Ø 2.6x5mm
Motor
Clutch Ass'y
