Disassembly - Sharp CD-C449W Service Manual

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 suffcient care on static electricity of integrated
circuits and other circuits when servicing.
CD-C449W/K449W
STEP REMOVAL
1 Top Cabinet 1. Screw ..................... (A1) x4
2 Side Panel 1. Screw ..................... (B1) x8
(Left/right)
3 CD Player Unit/ 1. Turn on the power supply,
CD Tray Cover
2. Hook ....................... (C1) x3
3. Hook ....................... (C2) x2
4. Screw ..................... (C3) x1
5. Socket .................... (C4) x3
4 Tuner PWB 1. Socket .................... (D1) x1
2. Screw ..................... (D2) x5
5 Rear Panel 1. Screw ..................... (E1) x11
...................................
6 Main PWB 1. Flat cable ............... (F1) x2
2. Flat wire ................. (F2) x3
3. Socket ...................... (F3) x3
4. Screw ....................... (F4) x3
7 Karaoke PWB 1. Screw ..................... (G1) x2
(CD-K449W only)
8 Front Panel 1. Flat wire ................. (H1) x1
2. Screw...................... (H2) x2
9 Power Amp. PWB 1. Socket .................... (J1) x2
2. Screw ..................... (J2) x6
10 Power Supply PWB 1. Screw ..................... (K1) x6
11 Display PWB 1. Knob ....................... (L1) x2
2. Nut .......................... (L2) x1
3. Screw ..................... (L3)x12
12 CD Switch PWB 1. Screw ..................... (M1) x3
13 Headphones PWB 1. Screw ..................... (N1) x1
14 Tape Mechanism 1. Screw ..................... (P1) x6
15 Turntable 1. Screw ..................... (Q1) x1
2. Cover ..................... (Q2) x1
16 Disc Tlay 1. Screw ..................... (R1) x2
2. Guide ..................... (R2) x2
17 CD Servo PWB 1. Screw ..................... (S1) x1
(Note2) 2. Socket .................... (S2) x4
18 CD Changer 1. Screw ..................... (T1) x4
Mechanism
19 CD Mechanism 1. Screw ..................... (U1) x1
Note 1:
How to open the changer manually. (Fig. 10-3)
1. Then, 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.
2. 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.
PROCEDURE
open the disc tray, take out
the CD cover, and close.
(Note 1)

DISASSEMBLY

CD-C477W/K449W
( A1 ) x2
ø3 x12mm
( B1 ) x2
ø3 x8mm
Side Panel
FIGURE
(Right)
9-1
( B1 ) x4
9-1
ø3 x8mm
9-2
10-1
( C4 ) x2
9-2
10-1
10-1
CD Player
10-2
Unit
( C4 ) x1
10-2
10-2
10-3
10-4
( E1 ) x10
ø3 x8mm
10-4
10-4
10-4
10-5
10-5
10-6
11-1
11-1
– 9 –
CD-C449W/K449W
Top Cabinet
Rear Panel
Figure 9-1
CD Tray Cover
(C2) x1
Pull
1
( C3 ) x1
ø3 x8mm
Rear Panel
Figure 9-2
LOCK
LEVER
Figure 9-3
( A1 ) x2
ø3 x12mm
Side Panel
(Left)
( B1 ) x2
ø3 x8mm
Hook
( C1) x3
1
2
( C2 ) x1
Front Panel
Main PWB
Tuner PWB