HT-SB250 (serv.man2) - Sharp Audio Service Manual (repair manual). Page 6

HT-SB250

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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. Check that all speaker cushions (refer items 201-4, 201-5, 201-6, 201-7, 201-8 and 201-9 on pages 6 and 7 of

Parts Guide) are properly sealed otherwise vibration noise will be very distinct at low frequency sound. 
Replace the cushions if they are found damaged during servicing.

1. Wall Mount Bracket .......
2. Screw.............................
3. Screw.............................
4. Screw.............................

1

Back Cabinet Assy

(A1)x2
(A2)x10
(A3)x9
(A4)x1

1

2

Amp  PWB

1.  Screw..............................
2. Connector .......................
3. Socket ............................

(B1)x2
(B2)x1
(B3)x2

2

3

Power PWB

1. Main Chassis .................
2. Screw ............................
3. Screw.............................
4. 

Socket............................

5. 

Screw.............................

(C1)x1
(C2)x4
(C3)x1
(C4)x1
(C5)x2

2

and Main PWB

4

Switch PWB

1. Screw.............................

(D1)x2

4

5

Woofer

1. Duct Port Holder ............
2. Duct Port Assy...............
3. Screw.............................
4. Screw.............................

(E1)x2
(E2)x2
(E3)x12
(E4)x8

3
3
3
4

6

Speaker

1. Screw.............................

(F1)x4

4

Back Cabinet Ass’y

(A3)x5

M3x10mm

(A2)x5
M3.5x10mm

(A1)x1

Wall Mount Bracket

(A4)x1

M3x10mm

(A1)x1

Wall Mount Bracket

(A2)x5

M3.5x10mm

(A3)x4

M3x10mm

Front Cabinet Ass’y