Read Sharp XL-DAB257NH (serv.man4) Service Manual online
XL-DAB257NH
3 – 1
CHAPTER 3. MECHANICAL DESCRIPTION
[1] Disassembly
Note:
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 electrostatic damage.
the connector, wrap the conductive aluminium foil around
the front end of the connector so as to protect the optical
pickup from electrostatic damage.
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
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.
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 1
Figure 2
Figure 3
Side Panel
(Right)
(Right)
Side Panel
(Left)
3x12mm
(A1)x2
Rear Panel
Front Panel
Top Cabinet
3x10mm
(B1)x2
3x10mm
(C1)x1
3x10mm
(B1)x2
3x10mm
(B1)x2
3x12mm
(A1)x2
3x12mm
(A1)x2
3x10mm
(B1)x2
3x10mm
(D1)x4
3x10mm
(C1)x1
PULL
Speaker PWB
(D2)x1
(D3)x1
Hook
(C2)x1
PULL
Hook
(C2)x1
Rear Panel
CD MP3 PWB
CD Changer Unit
(C4)x2
(C3)x2
(C3)x1
Front Panel
PULL
(E4)x1
Front panel
Main PWB
Power PWB
(E3)x1
(F2)x1
(G1)x4
4x6mm
(F2)x1
(E1)x2
3x10mm
3x10mm
(F1)x2
3x10mm
3x10mm
(E2)x2
(E4)x1
Hook
PULL
1
Top Cabinet
1
2
Side Panel
(Left/Right)
(Left/Right)
1
3
CD Changer unit
2
1. Screw ............................(C1) X 2
2. Hook ..............................(C2) X 2
3. Socket ...........................(C3) X 3
4. Flat Cable ......................(C4) X 2
1. Screw ............................ (E1) X 3
2. Flat Cable ...................... (E2) X 2
3. Socket ........................... (E3) X 1
4. Hook .............................. (E4) X 2
1. Knob ...............................(J1) X 1
2. Nut ..................................(J2) X 1
3. Washer ...........................(J3) X 1
4. Screw .............................(J4) X 6
1. Screw ........................... (M1) X 1
1. Screw ............................ (P1) X 4
2. Screw ............................ (P2) X 4
1. Screw ............................(D1) X 4
2. Socket ...........................(D2) X 1
3. Flat Cable ......................(D3) X 1
1. Screw ............................ (F1) X 3
2. Socket ........................... (F2) X 2
1. Screw ............................(G1) X 4
1. Screw ............................(H1) X 2
1. Screw ............................ (K1) X 2
1. Screw ............................ (L1) X 1
1. Screw ............................ (A1) X 6
1. Screw ............................ (B1) X 8
4
Rear Panel with
2
Speaker PWB
5
Front Panel
3
6
Main PWB
3
7
Power PWB
3
8
Speaker PWB
4
9
Display PWB
5
10
USB PWB / SUB PWB
5
11
Jack PWB
5
12
Re-Flash PWB
6
14
CD Mechanism
7
8
STEP
REMOVAL
PROCEDURE
FIGURE
1. Screw ............................(N1) X 3
2. Flat Cable ......................(N2) X 2
3. Socket ...........................(N3) X 1
13
CD MP3 PWB
7
(E1)x1
3x6mm
(F1)x1
3x6mm
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