Read Sharp HT-SB32D (serv.man3) Service Manual online
3 – 1
HT-SB32D
CHAPTER 3. MECHANICAL DESCRIPTION
[1] 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 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
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 207 and 209 on pages 5 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.
Replace the cushions if they are found damaged during servicing.
4. Take sufficient care on static electricity of integrated circuits and other circuits when servicing.
STEP
REMOVAL
PROCEDURE
FIGURE
1
Back Cabinet
1. Screw.................. (A1) x 5
2. Screw.................. (A2) x 13
1
1
3. Screw.................. (A3) x 1
1
4. Terminal Cover
Ass'y ................... (A4) x 1
5. Socket ................ (A5) x 1
6.
Flat Cable ........... (A6) x 1
7. Lug Wire ............. (A7) x 1
1
3
3
2
2
Display A PWB
1. Screw.................. (B1) x 1 2
2.
Flat Cable ........... (B2) x 1
STEP
REMOVAL
PROCEDURE
FIGURE
3
Display B PWB
1. Screw.................. (C1) x 1
2
4
Main PWB
1. Screw.................. (D1) x 2
2. Safety Cover....... (D2) x 1
3
5
Woofer
1. Screw.................. (E1) x 16
2
6
Soft Dome Tweeter 1. Screw.................. (F1) x 4
2
Terminal Cover Ass’y
Main PWB
Figure 3
Figure 1
CAUTION:
TO REMOVE SPEAKER UNIT, PRESS THESE LOCKING TABS
TO RELEASE SPEAKER WIRES.
SPEAKER UNIT
LOCKING
TAB
LOCKING TAB
SPEAKER
WIRE
(D2) x 1
Safety Cover
(A6) x 1
(A5) x 1
(D1) x 2
M3 x 10mm
(A4) x 1
Terminal Cover Ass’y
Front Panel Ass’y
Back Cabinet
(A3) x 1
Special Screw
(A2) x 6
M3 x 10mm
(A1) x 2
M3 x 12mm
(A1) x 3
M3 x 12mm
Figure 2
Display A PWB
(B2) x 1
(A7) x 1
Soft Dome Tweeter
(Left)
Woofer
(Left)
(F1) x 2
M3 x 8mm
(E1) x 4
M3 x 8mm
(E1) x 4
M3 x 8mm
(B1) x 1
M3 x 8mm
(E1) x 4
M3 x 8mm
(E1) x 4
M3 x 8mm
(F1) x 2
M3 x 8mm
(C1) x 1
M3 x 8mm
Display A PWB
Display B PWB
Soft Dome Tweeter
(Right)
Woofer
(Right)
Front Panel Ass’y
(A2) x 6
M3 x 10mm
(A2) x 1
M3 x 10mm
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