Read Sharp CD-C621H (serv.man14) Service Manual online
– 7 –
CD-C621H
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.
Figure 7-2
Figure 7-3
CD-C621H
1
Top Cabinet
1. Screw ..................... (A1) x4
7-1
2
Side Panel
1. Screw ..................... (B1) x6
7-1
(Left/right)
2. Hook ....................... (B2) x2
3
CD Player Unit/
1. Turn on the power supply,
7-2
CD Tray Cover
open the disc tray, take out
the CD cover, and close.
(Note 1)
2. Hook ....................... (C1) x3
3. Hook ....................... (C2) x2
4. Socket .................... (C3) x2
the CD cover, and close.
(Note 1)
2. Hook ....................... (C1) x3
3. Hook ....................... (C2) x2
4. Socket .................... (C3) x2
4
Back Board
1. Screw ..................... (D1) x5
7-2
5
Tuner PWB
1. Screw ..................... (E1) x3
8-1
2. Socket .................... (E2) x1
6
Main PWB
1. Screw ..................... (F1) x4
8-1
2. Socket .................... (F2) x4
3. Flat Wire ................. (F3) x1
4. Tip Wire .................. (F4) x1
5. Flat Cable .............. (F5) x1
3. Flat Wire ................. (F3) x1
4. Tip Wire .................. (F4) x1
5. Flat Cable .............. (F5) x1
7
Front Panel
1. Screw ..................... (G1) x1
8-1
2. Socket .................... (G2) x1
3. Hook ....................... (G3) x2
3. Hook ....................... (G3) x2
8
Headphones PWB 1. Screw ..................... (H1) x1
8-2
2. Support Bracket ..... (H2) x1
9
Display PWB/
1. Screw ..................... (J1) x12
8-2
Switch PWB
2. Hook ....................... (J2) x2
3.Socket ..................... (J3) x1
10
Tape Mechanism 1. Open the cassette holder.
8-2
2. Screw...................... (K1) x5
11
Turntable
1. Screw ..................... (L1) x1
8-3
2. Cover ..................... (L2) x1
12
Disc Tray
1. Screw ..................... (M1) x2
8-3
2. Guide ..................... (M2) x2
13
CD Servo PWB
1. Screw ..................... (N1) x1
8-4
(Note 2)
2. Socket .................... (N2) x4
14
CD Changer
1. Screw ..................... (P1) x4
8-5
Mechanism
15
CD Mechanism
1. Screw ..................... (Q1) x1
8-5
STEP
REMOVAL
PROCEDURE
FIGURE
Note 1:
How to open the changer manually. (Fig. 7-3)
1. Change, turn fully the lock lever in the arrow direction
How to open the changer manually. (Fig. 7-3)
1. Change, turn fully the lock lever in the arrow direction
through the hole on the loading chassis bottom in this state.
After that, push forward the CD player base.
After that, push forward the CD player base.
Note 2:
1. After removing the connector for the optical pickup fromthe
1. After removing the connector for the optical pickup fromthe
connector wrap the conductive aluminium foil around the
front end of connector so as to protect the optical pickup
from electrostatic damage.
front end of connector so as to protect the optical pickup
from electrostatic damage.
Figure 7-1
CD-C621H
Top Cabinet
(A1)x2
ø3x12mm
ø3x12mm
(A1)x2
ø3x12mm
ø3x12mm
(B2)x1
(B2)x1
Side Panel
(Left)
(Left)
Side Panel
(Right)
(Right)
(B1)x1
ø3x8mm
ø3x8mm
(B1)x1
ø3x8mm
ø3x8mm
(B1)x4
ø3x8mm
ø3x8mm
Back Board
(D1)x5
ø3x8mm
ø3x8mm
Back Board
Main PWB
CD Tray Cover
CD Player
Unit
Unit
( C1) x3
( C2 ) x1
(C3) x2
1
1
2
Pull
(C2) x1
LOCK
LEVER
LEVER
CD-C621H
– 8 –
Figure 8-1
Figure 8-2
Figure 8-3
Care when installing the CD changer mechanism.
Install the CD changer mechanism on the CD player base after
the shift lever has been set in the highest position.
Install the CD changer mechanism on the CD player base after
the shift lever has been set in the highest position.
Figure 8-4
Figure 8-5
(G1)x1
ø3x8mm
ø3x8mm
(F1)x3
ø3x10mm
ø3x10mm
(E1)x1
ø3x10mm
ø3x10mm
(F1)x1
ø3x10mm
ø3x10mm
(E1)x2
ø3x10mm
ø3x10mm
(F4)x1
(G2)x1
Front Panel
Main PWB
Tuner PWB
(F2)x2
(F5)x1
(F3)x1
(F2)x2
(E2)x1
(G3)x1
(G3)x1
Front Panel
Display PWB
Switch PWB
Open
Cassette
Holder
Holder
Tape Mechanism
(J1)x2
ø3x10mm
ø3x10mm
(J1)x7
ø3x10mm
ø3x10mm
(J1)x3
ø3x10mm
ø3x10mm
(H1)x1
ø3x10mm
ø3x10mm
(K1)x5
ø3x10mm
ø3x10mm
(H2)x1
Headphones
PWB
PWB
(J3)x1
(J2)x2
(M1) x1
ø3 x10mm
ø3 x10mm
(M1) x1
ø3 x10mm
ø3 x10mm
(L1) x1
ø3 x10mm
ø3 x10mm
Turntable
Disc Tray
(L2) x1
(M2) x1
(M2) x1
CD Player Unit
Washer
(N1) x1
ø3 x10mm
ø3 x10mm
(N2) x2
(N2) x2
CD Player Unit
CD Servo PWB
(P1) x4
ø3 x12mm
ø3 x12mm
(Q1) x1
ø2.6 x10mm
ø2.6 x10mm
CD Changer
Mechanism
Mechanism
CD Mechanism
Shift Lever
CD Player Base
– 9 –
CD-C621H
CP-C621H
1
Front Speaker
1. Front Panel ............ (A1) x1
9-1
2. Tip .......................... (A2) x2
3. Screw ..................... (A3) x6
3. Screw ..................... (A3) x6
STEP
REMOVAL
PROCEDURE
FIGURE
CP-C621H
Figure 9-1
Note:
The rear speakers can be easily disassembled.
Therefore the disassembling method is not discribed.
For details refer to the disassembling drawing in the Parts
Guide.
The rear speakers can be easily disassembled.
Therefore the disassembling method is not discribed.
For details refer to the disassembling drawing in the Parts
Guide.
Screw Driver
Woofer
(A3)x4
ø4x12mm
ø4x12mm
(A3)x2
ø3x10mm
ø3x10mm
(A2)x2
Front Panel
(A1)x1
Tweeter
How to remove the pickup (See Fig. 9-3)
1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2).
2. Remove the stop washer (B3) x 1 pc., to remove the gear
2. Remove the stop washer (B3) x 1 pc., to remove the gear
(B4).
3. Remove the pickup.
Figure 9-3
REMOVING AND REINSTALLING THE MAIN PARTS
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11, 12, 13, 14 and 15 of the disassembly
method to remove the CD mechanism.
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 9-2)
(See Fig. 9-2)
1. Remove the screws (A1) x 2 pcs., to remove the loading
motor.
Figure 9-2
Note
After removing the connector for the optical pickup fromthe
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from
electrostatic damage.
After removing the connector for the optical pickup fromthe
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from
electrostatic damage.
(A1) x2
ø2.6 x5mm
ø2.6 x5mm
Loading/Up/
Down Motor
Down Motor
Motor
PWB
PWB
(B1) x2
ø2.6 x6mm
ø2.6 x6mm
Shaft
(B2) x1
(B2) x1
Stop Washer
(B3) x1
(B3) x1
Gear
(B4) x1
(B4) x1
CD Mechanism
Pickup