DOWNLOAD Sharp CD-E250 (serv.man20) Service Manual ↓ Size: 3.52 MB | Pages: 68 in PDF or view online for FREE

Model
CD-E250 (serv.man20)
Pages
68
Size
3.52 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-e250-sm20.pdf
Date

Sharp CD-E250 (serv.man20) Service Manual ▷ View online

– 3 –
CD-E250E
CD-E550E
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
CD player
Tuner
Cassette deck
Front speaker
Surround speaker
Type
3-disc multi-play compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser 
pickup
D/A converter
1-bit D/A converter
Frequency 
response
20 - 20,000 Hz
Dynamic range
90 dB (1 kHz)
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Frequency 
response
125 - 8,000 Hz (normal tape)
Signal/noise ratio
50 dB (TAPE 1, playback) 
50 dB (TAPE 2, recording/playback)
Wow and flutter
0.3 % (WRMS)
Type
2-way type speaker system
5 cm (2") tweeter
10 cm (4") woofer
Maximum input 
power
46 W
Rated input power
23 W
Impedance
8 ohms
Dimensions
Width: 200 mm (7-7/8") 
Height: 305 mm (12") 
Depth: 175 mm (6-7/8")
Weight
2.8 kg (6.2 lbs.)/each
Type
8 cm (3-1/8") full-range speaker
Maximum input 
power
20 W
Rated input power
10 W
Impedance
16 ohms
Dimensions
Width: 195 mm (7-11/16") 
Height: 100 mm (4") 
Depth: 140 mm (5-1/2")
Weight
0.7 kg (1.5 lbs.)/each
General
Amplifier
Power source
AC 230 - 240 V, 50 Hz
Power 
consumption
78 W
Dimensions
Width: 270 mm (10-5/8") 
Height: 305 mm (12") 
Depth: 342 mm (13-1/2")
Weight
6.4 kg (14.1 lbs.)
Output power
Front speakers:
RMS: 46 W (23 W + 23 W) (10 % T.H.D.)
RMS: 33 W (16.5 W + 16.5 W) (0.9 % 
T.H.D.)
Surround speakers:
RMS: 20 W (10 W + 10 W) (10 % T.H.D.)
RMS: 17 W (8.5 W + 8.5 W) (0.9 % T.H.D.)
Output terminals
Front speakers: 8 ohms
Surround speakers: 16 ohms
Headphones: 16 - 50 ohms (recommended: 
32 ohms)
Input terminals
Video/Auxiliary (audio signal): 500 mV/47 k 
ohms
CD-E250E
CD-E550E
CD player
Tuner
Cassette deck
Front speaker
Surround speaker
Type
3-disc multi-play compact disc player
Signal readout
Non-contact, 3-beam semiconductor laser 
pickup
D/A converter
1-bit D/A converter
Frequency 
response
20 - 20,000 Hz
Dynamic range
90 dB (1 kHz)
Frequency range
FM: 87.5 - 108 MHz
AM: 522 - 1,620 kHz
Frequency 
response
125 - 8,000 Hz (normal tape)
Signal/noise ratio
50 dB (TAPE 1, playback) 
50 dB (TAPE 2, recording/playback)
Wow and flutter
0.3 % (WRMS)
Type
2-way type speaker system
5 cm (2") tweeter
13 cm (5") woofer
Maximum input 
power
68 W
Rated input power
34 W
Impedance
8 ohms
Dimensions
Width: 200 mm (7-7/8") 
Height: 305 mm (12") 
Depth: 205 mm (8-1/16")
Weight
3.5 kg (7.7 lbs.)/each
Type
8 cm (3-1/8") full-range speaker
Maximum input 
power
32 W
Rated input power
16 W
Impedance
16 ohms
Dimensions
Width: 195 mm (7-11/16") 
Height: 100 mm (4") 
Depth: 140 mm (5-1/2")
Weight
0.7 kg (1.5 lbs.)/each
General
Amplifier
Power source
AC 240 V, 50 Hz
Power 
consumption
105 W
Dimensions
Width: 270 mm (10-5/8") 
Height: 305 mm (12") 
Depth: 342 mm (13-1/2")
Weight
6.8 kg (15.0 lbs.)
Output power
Front speakers:
RMS: 68 W (34 W + 34 W) (10 % T.H.D.)
RMS: 52 W (26 W + 26 W) (0.9 % T.H.D.)
Surround speakers:
RMS: 32 W (16 W + 16 W) (10 % T.H.D.)
RMS: 24 W (12 W + 12 W) (0.9 % T.H.D.)
Output terminals
Front speakers: 8 ohms
Surround speakers: 16 ohms
Headphones: 16 - 50 ohms (recommended: 
32 ohms)
Input terminals
Video/Auxiliary (audio signal): 500 mV/47 k 
ohms
Specifications for this model are subject to change without
prior notice.
CD-E250E
CD-E550E
– 4 –
NAMES OF PARTS
Front panel
1. Disc Tray
2. Timer Set Indicator
3. Memory/Set Button
4. On/Stand-by Button
5. Clock Button
6. Timer/Sleep Button
7. Tuning and Time Up Button
8. Tuning and Time Down Button
9. Headphone Socket 
10. Tape 2 Record Pause Button
11. Tape 1 Cassette Compartment
12. Equaliser Mode Select Button
13. Extra Bass/Demo Mode Button
14. Volume Up and Down Buttons
15. Disc Tray Open/Close Button
16. Disc Skip Button
17. Tape 2 Cassette Compartment
18. CD Button
19. Tape (1   2) Button
20. CD or Tape Stop Button
21. CD Track Down or Fast Reverse, Tape 2 Rewind,
Tuner Preset Down Button
22. Tuner (Band) Button
23. Video/Auxiliary Button
24. CD Play or Repeat, Tape Play Button
25. CD Track Up or Fast Forward, Tape 2 Fast Forward,
Tuner Preset Up Button
3
4
5
2
1
6
11
7
8
9
10
12
16
14
15
17
13
22
23
24
25
18
19
20
21
Display
1. Disc Number Indicators
2. CD Play Indicator
3. Tape Play Indicator
4. FM Stereo Mode Indicator
5. FM Stereo Receiving Indicator
6. Memory Indicator
7. Extra Bass Indicator
8. Timer Recording Indicator
9. Timer Play Indicator
10. CD Pause Indicator
11. CD Repeat Play Indicator
12. Tape 2 Record Indicator
13. Sleep Indicator
 
 
Rear panel
1. Video/Auxiliary (Audio Signal) Input Sockets
2. Cooling Fan [CD-E550E ONLY]
3. AC Power Input Socket
4. FM/AM Loop Aerial Socket
5. Front Speaker Terminals
6. Surround Speaker Terminals
1
2
1
3
4 5 6 7
8
9
13
12
10 11
4
3
2
5
6
– 5 –
CD-E250E
CD-E550E
Front speaker
1. Tweeter
2. Bass Reflex Ducts
3. Woofer
4. Speaker Wire
 
Surround speaker
1. Full-Range Speaker
2. Speaker Wire
Note:
The speaker grilles on the front and surround speakers are not
removable.
2
1
4
2
2
3
1
4
2
2
3
1
(Illustration:CD-E250E)
(Illustration:CD-E550E)
 
Remote control
1. Remote Control Transmitter
2. On/Stand-by Button
3. CD Button
4. Tape (1   2) Button
5. Memory Button
6. Programme Clear Button
7. 
Tuning and Time Down Button
8. CD Track Down or Fast Reverse, Tape 2 Rewind,
Tuner Preset Down Button
9. CD or Tape Stop Button
10. Equaliser Mode Select Button
11. Disc Number Select Buttons
12. 
Tuner (Band) Button
13. Video/Auxiliary Button
14. CD Random Button
15. 
CD Track Up or Fast Forward, Tape 2 Fast Forward,
Tuner Preset Up Button
16. Tuning and Time Up Button
17. CD Play or Repeat, Tape Play Button
18. Tape 2 Record Pause Button
19. CD Pause Button
20. 
Extra Bass Button
21. Volume Up and Down Buttons
Buttons with " " mark in the illustration or highlighted in bold on the 
right can be operated on the remote control only.
1
2
3
4
5
6
7
8
9
10
14
12
13
11
17
18
21
20
19
15
16
CD-E250E
CD-E550E
– 6 –
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. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall
outlet before starting to disassemble the unit.
3. 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.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 6-2
Figure 6-1
Figure 6-3
Note 1: How to open the changer manually. (Fig. 6-3)
1. In this state, turn fully the loading Gear in the arrow direction
through the hold on the loading tray bottom.
2. After that,push forward the loading tray.
1
Top Cabinet
1. Screw ...................... (A1) x5
6-1
2
Side Panel
1. Screw ...................... (B1) x8
6-1
(Left/Right)
3
CD Player Unit
1. Turn on the power supply, ..
6-2
    open the disc tray, take out
    the CD tray cover, and close.
..................................  (Note 1)
2. CD Tray Cover ........ (C1) x1
3. Hook ........................ (C2) x2
4. Socket ..................... (C3) x1
5. Socket ..................... (C4) x2
7-1
4
Rear Panel
1. Screw ...................... (D1) x8
6-2
5
Main PWB
1. Screw ...................... (E1) x3
6-2
2. Screw ...................... (E2) x2
7-1
3. Socket ..................... (E3) x9
4. Socket ..................... (E4) x2
7-2
6
Front Panel
1. Screw ....................... (F1) x3
7-1
2. Hook ......................... (F2) x2
7
Display PWB
1. Screw .................... (G1) x13
7-2
8
Tape Mechanism 1. Open the cassette holder.
7-2
2. Screw...................... (H1) x8
9
Headphones PWB 1. Screw ....................... (J1) x1
7-2
10
CD Servo PWB
1. Screw ...................... (K1) x4
7-3
(Note 2)
2. Socket ..................... (K2) x2
3. Solder ...................... (K3) x2
11
Turntable
1. Screw ....................... (L1) x1
7-4
2. Spacer ...................... (L2) x1
12
Loading Tray
1. Push forward the loading tray.
7-4
2. Inserting the flat head into the
hole, push in the direction indi-
cated by the arrow. ... (M1) x2
13
CD Mechanism
1. Hook ........................ (N1) x2
7-5
Block
STEP
REMOVAL
PROCEDURE
FIGURE
Side Panel
(Right)
Side Panel
(Left)
Top Cabinet
Front
Panel
(A1)x2
ø3x16mm
(A1)x2
ø3x16mm
(B1)x2
ø3x8mm
(B1)x2
ø3x8mm
(B1)x4
ø3x10mm
(A1)x1
ø3x8mm
Rear Panel
1
1
2
2
(D1)x3
ø3x8mm
(D1)x3
ø3x10mm
(D1)x2
ø3x10mm
(E1)x2
ø3x6mm
CD Player Unit
Rear
Panel
Main
PWB
CD Tray Cover
(E1)x1
ø3x10mm
(C2)x1
(C3)x1
CD Servo
PWB
(C1)x1
Pull
(C2)x1
Pull
CD Player Unit
(Bottom View)
Loading Gear
Front Side
or
Note 2:
1. After removing the connector for the optical pickup from the
connector, wrap the conductive aluminium foil around the front end
of the connector so as to protect the optical pickup from electro-
static damage.
Page of 68
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Sharp CD-E250 (serv.man20) Service Manual ▷ Download

  • DOWNLOAD Sharp CD-E250 (serv.man20) Service Manual ↓ Size: 3.52 MB | Pages: 68 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp CD-E250 (serv.man20) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp CD-E250 (serv.man20) System. Information contained in Sharp CD-E250 (serv.man20) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.