Service manual

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CD-C831W
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
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.
Figure 7-2
Figure 7-3
CD-C831W
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
4 Back Board 1. Screw ..................... (D1) x6 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
7 Front Panel 1. Screw ..................... (G1) x1 8-1
2. Socket .................... (G2) x1
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. 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.
Note 2:
1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the
front end of connector to protect the optical pickup from
electrostatic damage.
Figure 7-1
CD-C831W
Top Cabinet
(A1) x2
ø3x12mm
(A1) x2
ø3x12mm
(B2) x1
(B2) x1
Side Panel
(Left)
Side Panel
(Right)
(B1) x1
ø3x10mm
(B1) x1
ø3x10mm
(B1) x4
ø3x8mm
Back Board
(D1) x6
ø3x10mm
Back Board
Main PWB
CD Tray Cover
CD Player
Unit
(C1) x3
(C2) x1
(C3) x2
1
1
2
Pull
(C2) x1
LOCK
LEVER