Sharp CD-E250 (serv.man20) Service Manual ▷ View online
CD-E250E
CD-E550E
– 2 –
SAFETY PRECAUTION FOR SERVICE MANUAL
Precaution to be taken when replacing and servicing the Laser Pickup.
The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements.
However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
(1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than
the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.
(2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping.
(3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens at any time.
(5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in
(3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup.
(4) Under no circumstances look directly into the Pickup Lens at any time.
(5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in
hazardous radiation exposure.
IMPORTANT SERVICE NOTES (FOR U.K. ONLY)
Before returning the unit to the customer after completion of a
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
repair or adjustment it is necessary for the following withstand
voltage test to be applied to ensure the unit is safe for the
customer to use.
Setting of Withstanding Voltage Tester and set.
Set name
set value
Withstanding Voltage Tester
Test voltage
4,240 VPEAK
3,000 VRMS
3,000 VRMS
Set time
6 secs
Set current (Cutoff current)
4 mA
Unit
Judgment
OK: The “GOOD” lamp lights.
NG: The “NG” lamp lights and the buzzer sounds.
NG: The “NG” lamp lights and the buzzer sounds.
PROBE
AC
OUT
UNIT
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
TO GND OF CHASSIS
SCREW
WITHSTANDING
VOLTAGE TESTER
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
– 3 –
CD-E250E
CD-E550E
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
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
pickup
D/A converter
1-bit D/A converter
Frequency
response
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
response
125 - 8,000 Hz (normal tape)
Signal/noise ratio
50 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/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
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")
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
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")
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
consumption
78 W
Dimensions
Width: 270 mm (10-5/8")
Height: 305 mm (12")
Depth: 342 mm (13-1/2")
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.)
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)
32 ohms)
Input terminals
Video/Auxiliary (audio signal): 500 mV/47 k
ohms
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
pickup
D/A converter
1-bit D/A converter
Frequency
response
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
response
125 - 8,000 Hz (normal tape)
Signal/noise ratio
50 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/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
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")
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
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")
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
consumption
105 W
Dimensions
Width: 270 mm (10-5/8")
Height: 305 mm (12")
Depth: 342 mm (13-1/2")
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)
32 ohms)
Input terminals
Video/Auxiliary (audio signal): 500 mV/47 k
ohms
ohms
Specifications for this model are subject to change without
prior notice.
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
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,
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,
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
4
5
2
1
6
11
7
8
9
8
9
10
12
16
14
15
17
13
22
23
23
24
25
25
18
19
19
20
21
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
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
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
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
2. Bass Reflex Ducts
3. Woofer
4. Speaker Wire
■
Surround speaker
1. Full-Range Speaker
2. Speaker Wire
2. Speaker Wire
Note:
The speaker grilles on the front and surround speakers are not
removable.
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,
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,
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
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.
right can be operated on the remote control only.
1
2
3
4
5
6
7
7
8
9
9
10
14
12
13
11
17
18
21
20
19
15
16
16