Read Sharp SD-AT50H (serv.man7) Service Manual online
SD-AT50H
– 6 –
1
Top Cabinet
1. Screw ...................... (A1) x5
6-1
2
Bottom Cabinet
1. Leg Cushion ............ (B1) x4
6-1
2. Screw ...................... (B2) x4
3. Screw ...................... (B3) x3
3. Screw ...................... (B3) x3
3
Rear Panel/
1. Screw ...................... (C1) x9
6-2
Tuner Unit
2. Flat Cable ............... (C2) x1
4
DSP PWB
1. Screw ...................... (D1) x2
6-2
2. Top Support Bracket ...... (D2) x1
3. Screw ...................... (D3) x2
3. Screw ...................... (D3) x2
6-3
4. PWB Holder ............ (D4) x1
5. Flat Cable ............... (D5) x3
5. Flat Cable ............... (D5) x3
5
Main PWB
1. Screw ...................... (E1) x4
6-3
6
Front Panel
1. Screw ....................... (F1) x4
6-3
2. Hook ......................... (F2) x2
7
Display PWB
1. Screw ...................... (G1) x6
6-4
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. 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. 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.
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.
Figure 6-3
STEP
REMOVAL
PROCEDURE
FIGURE
Figure 6-2
AV Control Unit
Figure 6-4
Figure 6-1
(A1)x5
ø
3x8mm
Front Panel
Bottom Cabinet
Top Cabinet
(B3)x3
ø
3x8mm
(B2)x4
ø
2x6mm
(B1)x4
(D1)x2
ø
3x8mm
(C1)x2
ø
3x8mm
(C1)x7
ø
3x8mm
Front Panel
Bottom Cabinet
Rear Panel
Tuner Unit
(D2)x1
(C2)x1
DSP PWB
(F1)x2
ø
3x8mm
(D3)x2
ø
3x10mm
(F1)x2
ø
3x8mm
(E1)x2
ø
3x10mm
(F2)x1
(D5)x2
(D5)x1
(F2)x1
(D4)x1
Main PWB
DSP PWB
Front
Panel
Panel
Lug Wire
Push
(E1)x2
ø
3x10mm
(G1)x6
ø
3x10mm
Display PWB
Front Panel
– 7 –
SD-AT50H
Figure 7-1
Figure 7-2
Figure 7-3
Figure 7-4
Figure 7-5
1
Rear Cover
1. Screw .................... (A1) x16
7-1
2
Subwoofer Stand 1. Screw ...................... (B1) x8
7-1
3
Amp. Unit
1. Screw ...................... (C1) x5
7-2
2. Socket ..................... (C2) x2
4
Power PWB
1. Screw ...................... (D1) x4
7-2
2. Socket ..................... (D2) x5
7-3
5
Limit PWB
1. Screw ...................... (E1) x2
7-3
6
1-Bit Amp. Unit
1. Screw ....................... (F1) x8
7-3
7
1-Bit Amp. Cover 1. Screw .................... (G1) x15
7-4
8
1-Bit Amp. PWB
1. Screw ...................... (H1) x6
7-5
9
Subwoofer
1. Screw ....................... (J1) x4
8-1
STEP
REMOVAL
PROCEDURE
FIGURE
Subwoofer/Amplifier Unit
(A1)x4
ø
3x16mm
(A1)x1
ø
3x12mm
(A1)x2
ø
3x8mm
(A1)x2
ø
3x8mm
(A1)x5
ø
3x12mm
(A1)x2
ø
3x16mm
(B1)x4
ø
4x16mm
(B1)x4
ø
4x16mm
Rear Cover
Front Panel
Subwoofer
Stand
Stand
(C2)x2
(D1)x4
ø
3x8mm
(C1)x5
ø
3x20mm
Power PWB
Subwoofer
Box
Box
(F1)x2
ø
3x8mm
(E1)x1
ø
3x10mm
(E1)x1
ø
3x8mm
(D2)x1
(D2)x1
(D2)x2
(D2)x1
(F1)x1
ø
3x8mm
(F1)x2
ø
3x8mm
(F1)x1
ø
3x10mm
(F1)x1
ø
3x8mm
(F1)x1
ø
3x8mm
Power PWB
Limit PWB
1-Bit Amp. Unit
(G1)x3
ø
3x12mm
(G1)x3
ø
3x12mm
(G1)x1
ø
3x12mm
(G1)x3
ø
3x12mm
(G1)x2
ø
3x12mm
(G1)x1
ø
3x12mm
(G1)x1
ø
3x12mm
(G1)x1
ø
3x8mm
1-Bit Amp. Cover
Washer
Washer
(H1)x3
ø
3x8mm
1-Bit Amp. PWB
(H1)x3
ø
3x8mm
Be careful of the
silicon grease.
silicon grease.
Display
