CD-E250 (serv.man8). Removing and reinstalling the main parts — Sharp Audio Service Manual (repair manual)

Model
CD-E250 (serv.man8)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
67.21 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Removing and reinstalling the main parts
File
cd-e250-sm8.pdf
Date

View Sharp CD-E250 (serv.man8) Service Manual online

CD-E250E
CD-E550E
– 8 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to
remove the tape mechanism.
Figure 8-1
Figure 8-2
Figure 8-3
Figure 8-4
Figure 8-5
How to remove the record/playback and erase
heads (TAPE 1) (See Fig. 8-1)
1. When you remove the screws  (A1) x 2 pcs., the record/
playback head can be removed.
How to remove the playback head (TAPE 2)
(See Fig. 8-2)
1. When you remove the screws  (B1) x 2 pcs., the erase  head
can be removed.
2. When you remove the screws  (B2)  x 2 pcs., the record/
playback head can be removed.
Note:
After replacing the heads and  performing the azimuth
adjustment, be sure to apply screwlock.
How to remove the pinch roller (TAPE 1,2)
(See Fig. 8-3)
1. When you remove the screw  (C1) x 1 pc., the pinch roller
can be removed.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
How to remove the motor (See Fig. 8-4)
1. Remove the belt.
2. Remove the screws (D1) x 4 pcs., to remove the motor
bracket.
3. Remove the screws (D2) x 3 pcs., to remove the motor.
How to remove the belt (TAPE 1)
(See Fig. 8-5)
1. Remove the main belt (F1) x 1 pc., from the motor side.
How to remove the belt (TAPE 2)
(See Fig. 8-5)
1. Remove the main belt (G1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (G2) x 1 pc.
Record/
Playback Head
(A1)x1
ø2x3mm
(A1)x1
ø2x7mm
TAPE 1
Erase Head
Record/
Playback Head
(B1)x2
ø2x8mm
TAPE 2
(B2)x1
ø2x3mm
(B2)x1
ø2x7mm
TAPE 1
TAPE 2
<A>
Pinch Roller
(C1)x1
Pinch Roller
Pawl
(D1)x2
ø2x4mm
(D1)x3
Special Screw
Motor
Motor
Motor
Bracket
Motor
Bracket
(D1)x2
ø2x4mm
TAPE 2
TAPE 1
TAPE 2
Main Belt
(G1)x1
TAPE 1
Main Belt
(F1)x1
Motor
Motor
REW/FF
Clutch Ass'y
Main
Belt
(F1)x1
Main
Belt
(G1)x1
REW/FF
Belt
(G2)x1
– 9 –
CD-E250E
CD-E550E
Figure 9-1
How to remove the flywheel (TAPE 1,2)
 (See Fig. 9-1.)
1. Remove the stop washer (H1) x 1 pc., with a small precision
screwdriver to extract the flywheel from the capstan metal.
Note:
When the stop washer is deformed or damaged, replace it
with a new one.
How to reinstall the parts
Install each part in the reverse order of the removal with care.
TAPE 1
TAPE 2
Stop
Washer
Driver
(H1)x1
Stop Washer
Mechanism
Chassis
Washerx2
Flywheel
How to remove the tape mechanism PWB
(TAPE 1,2)  (See Fig. 9-2.)
1. Remove the screw (J1) x 1 pc., to remove the tape
mechanism PWB.
2. Remove the screw (J2) x 1 pc.
3. Remove the solder joints (J3) x 2 pcs., to remove the tape
mechanism PWB.
Figure 9-2
TAPE 1,2
Tape 
Mechanism
PWB
Tape 
Mechanism
PWB
(J3)x2
Solder
Joint
(J2)x1
ø2x8mm
(J1)x1
ø2x3mm
CD-E250E
CD-E550E
– 10 –
Figure 10-1
CD PLAYER SECTION
Perform steps 1, 2, 3, 10,11, and 12 of the disassembly
method to remove the CD mechanism.
How to remove the T/T  rotate motor
(See Figs. 10-1)
1. Remove the screws (A1) x 2 pcs.
2. Remove the belt (A2) x 1 pc.
3. Remove the screws (A3) x 2 pcs., to remove the T/T  rotate
motor.
(A1)x2
ø2.4x3mm
(A3)x2
ø3x10mm
(A2)x1
Loading Tray
(Bottom View)
Loading Tray
T/T Motor  PWB
T/T Rotate Motor
(B1)x2
ø2.4x5mm
Up/Down Loading Motor
CD Player Unit
(B2)x1
Figure 10-2
How to remove the up/down loading motor
(See Figs. 10-2)
1. Remove the screws (B1) x 2 pcs.
2. Remove the belt (B2) x 1 pc.
How to remove the CD mechanism unit
 (See Fig. 10-3)
Perform steps 1, 2, 3, 10and 13 of the disassembly method to
remove the CD mechanism.
1. Remove the screws (C1) x 4 pcs., to remove the mechanism
unit.
Note
After removing the connector for the optical pickup from the
connector wrap the conductive aluminium foil around the front
end of connector so as to protect the optical pickup from
electrostatic damage.
Figure 10-3
Holder
CD Mechanism Unit
Holder
PWB
(C1)x4
ø2.5x10mm
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Download Sharp CD-E250 (serv.man8) Service Manual (Repair Manual)

Here you can view online or download Sharp CD-E250 (serv.man8) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp CD-E250 (serv.man8) System. Information contained in Sharp CD-E250 (serv.man8) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).