Disassembly - Sharp SM-SX1 Service Manual

SM-SX1/SX1W
Caution on Disassembly
Follow the below-mentioned notes when disassembling
the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
2. 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.
3. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
REMOVAL
STEP
1 Top Panel 1. Hexagon Screw ...... (A1) x5
2 Side Panel 1. Hexagon Screw ...... (B1) x6
(Left/Right)
3 Front Panel 1. Screw .................... (C1) x4
2. Socket ................... (C2) x1
4 Rear Panel 1. Screw .................. (D1) x16
2. Socket ................... (D2) x2
5 Side Bracket 1. Screw ................... (E1) x14
(Left/Right) 2. Socket .................... (E2) x3
6 Front Bracket 1. Screw ..................... (F1) x1
2. Nut .......................... (F2) x1
3. Screw ..................... (F3) x8
4. Socket .................... (F4) x1
7 Shield Cover A 1. Screw .................... (G1) x4
8 Shield Cover B 1. Screw .................... (H1) x4
9 Microcomputer 1. Socket .................... (J1) x2
PWB 2. PWB Holder ........... (J2) x4
10 Main PWB 1. Screw ..................... (K1) x5
2. Socket .................... (K2) x5
11 Power PWB 1. Screw ..................... (L1) x8
2. Screw ..................... (L2) x2
3. Socket .................... (L3) x2
12 AC Input Filter 1. Screw .................... (M1) x1
PWB 2. PWB Holder .......... (M2) x3
13 Input Source PWB 1. Screw .................... (N1) x1
14 1 Bit Amp. PWB 1. PWB Holder ........... (P1) x4
15 Selector Switch 1. Screw .................... (Q1) x5
PWB 2. Socket ................... (Q2) x1
3. Claw ...................... (Q3) x2
16 Segment PWB 1. Screw ...................... (R1) x4
2. Claw ...................... (R2) x4

DISASSEMBLY

PROCEDURE
FIGURE
6-1
6-2
6-2
6-2
6-3
7-1
7-2
7-2
7-3
7-3
7-4
7-4
7-4
7-4
7-5
7-5
Front Panel
(A1)x5
ø4x6mm
Side Panel
Right(Right)
(B1)x3
ø3x8mm
(C1)x2
ø3x8mm
Microcomputer
PWB
(C2)x1
(C1)x2
ø3x8mm
(D2)x1
Speaker
Relay PWB
Side Bracket
(Left)
Microcomputer
PWB
(E1)x2
ø3x6mm
(E1)x5
ø3x6mm
(E1)x2
ø3x6mm
– 6 –
Top Panel
(B1)x3
ø3x8mm
Side Panel
(Left)
Rear Panel
Figure 6-1
(D1)x2
Front
ø3x6mm
Panel
Power Filter
PWB
(D2)x1
(D1)x1
ø3 x6mm
Rear Panel
(D1)x13
ø3x6mm
Figure 6-2
(E2)x3
Input Source
PWB
(E1)x5
ø3x6mm
Side Bracket
(Right)
Figure 6-3
Shield
Plate