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Page

SAFETY PRECAUTION FOR SERVICE MANUAL ..........................................................................................................  2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .........................................................................................................  2
SPECIFICATIONS ............................................................................................................................................................  3
NAMES OF PARTS ..........................................................................................................................................................  4
DISASSEMBLY .................................................................................................................................................................  5
REMOVING AND REINSTALLING THE MAIN PARTS ....................................................................................................  6
ADJUSTMENT ..................................................................................................................................................................  8
TEST MODE .....................................................................................................................................................................  9
ERROR LIST ..................................................................................................................................................................  13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................  14

 TYPES OF TRANSISTOR AND LED ..............................................................................................................................  14

WAVEFORMS OF CD CIRCUIT .....................................................................................................................................  15

 BLOCK DIAGRAM ..........................................................................................................................................................  16
 SCHEMATIC DIAGRAM .................................................................................................................................................  20
 WIRING SIDE OF P.W.BOARD ......................................................................................................................................  26
 TROUBLESHOOTING ....................................................................................................................................................  31

FUNCTION TABLE OF IC ..............................................................................................................................................  37

 LCD SEGMENT ..............................................................................................................................................................  44

PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (FOR U.K. ONLY)

 • In the interests of user-safety the set should be restored to its original

condition and only parts identical to those specified should be used.

 

Recording and playback of any material may require consent,
which SHARP is unable to give. Please refer particularly to the
provisions of Copyright Act 1956, the Dramatic and Musical
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.

(Except for U.K.)

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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 I Requirements.
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

hazardous radiation exposure.

ADVERSEL-SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING. 
SE IKKE IND I STRÅLEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NÄKYVÄLLE JA NÄKYMÄTTÖMÄLLE 
LASERSÄTEILYLLE ÄLÄ TUIJOTA SÄTEESEEN ÄLÄKÄ KATSO SITÄ
OPTISEN LAITTEEN LÄPI.
VARNING-SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR DENNA
DEL ÄR ÖPPNAD. STIRRA EJ IN I STRÅLEN OCH BETRAKTA EJ
STRÅLEN GENOM OPTISKT INSTRUMENT.

Laser Diode Properties

Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

Laser Diode Properties

Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW

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.

Set name

set value

Withstanding Voltage Tester

Test voltage

4,240 VPEAK
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.

PROBE

AC

OUT

UNIT

SHORT-CIRCUT
AC POWER
SUPPLY CORD

CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL

WITHSTANDING

VOLTAGE TESTER

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FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.

Specifications for this model are subject to change without
prior notice.

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AC 230 V, 50 Hz

Power on: 26 W

Power stand-by: 0.9 W

Width: 160 mm (6-5/16") 
Height: 240 mm (9-1/2") 
Depth: 247 mm (9-3/4")

2.6 kg (5.8 lbs.)

PMPO: 30 W (total)

MPO: 15 W (7.5 W + 7.5 W) (DIN 45 324)

RMS: 10 W (5 W + 5 W) (DIN 45 324)

Speakers: 4 ohms

Headphones: 16 - 50 ohms (recommended: 32 
ohms)

Video/Auxiliary (audio signal): 500 mV/47 k 
ohms

FM: 87.5 - 108 MHz

AM: 522 - 1,620 kHz

Compact disc player

Non-contact, 3-beam semiconductor laser 
pickup

1-bit D/A converter

Frequency response 20 - 20,000 Hz

90 dB (1 kHz)

Frequency response 50 - 14,000 Hz (normal tape)

50 dB (recording/playback)

0.3 % (DIN 45 511)

10 cm (4") full-range speaker

10 W

5 W

4 ohms

Width: 145 mm (5-3/4") 
Height: 240 mm (9-1/2") 
Depth: 175 mm (6-15/16")

1.4 kg (3.1 lbs.)/each

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AC 230 V, 50 Hz

Power on: 26 W

Power stand-by: 0.9 W

Width: 160 mm (6-5/16") 
Height: 240 mm (9-1/2") 
Depth: 247 mm (9-3/4")

2.6 kg (5.8 lbs.)

RMS: 10 W (5 W + 5 W) (10 % T.H.D.)

Speakers: 4 ohms

Headphones: 16 - 50 ohms (recommended: 
32 ohms)

Video/Auxiliary (audio signal): 500 mV/47 k 
ohms

FM: 87.5 - 108 MHz

AM: 522 - 1,620 kHz

Compact disc player

Non-contact, 3-beam semiconductor laser 
pickup

1-bit D/A converter

20 - 20,000 Hz

90 dB (1 kHz)

50 - 14,000 Hz (normal tape)

50 dB (recording/playback)

0.25 % (WRMS)

10 cm (4") full-range speaker

10 W

5 W

4 ohms

Width: 145 mm (5-3/4") 
Height: 240 mm (9-1/2") 
Depth: 175 mm (6-15/16")

1.4 kg (3.1 lbs.)/each

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15. Timer Play Indicator
16. Tape Record Indicator
17. Sleep Indicator
18. CD Random Play Indicator
19. Memory Indicator
20. FM Stereo Mode Indicator
21. FM Stereo Receiving Indicator
22. CD Play Indicator
23. CD Repeat Play Indicator
 
24. AC Power Input Socket 
25. FM/AM Loop Aerial Socket 
26. Video/Auxiliary (Audio Signal) Input Sockets  
27. Speaker Terminals  

3. Remote Control Transmitter 
4. Clock Button 
5. On/Stand-by Button 
6. CD Button   
7. Tuner and Band Selector Button   
8. Clear Button 
9. Memory Button 

10. CD Track Down, Tuner Preset Down Button
11. CD Fast Reverse, Tuning Down, 

Tape Rewind Button  

12. CD or Tape Play Button  
13. CD or Tape Stop Button 
14. Volume Up and Down Buttons 
15. Bass Up and Down Buttons 
16. Timer Button 
17. Sleep Button 
18. Video/Auxiliary Button 
19. Tape Button   
20. Repeat Button 
21. Random Button 
22. CD Track Up, Tuner Preset Up Button  
23. CD Fast Forward, Tuning Up,              

Tape Fast Forward Button   

24. Tape Record Pause Button   
25. CD Pause Button 
26. Treble Up and Down Buttons 

 

Buttons with " " mark in the illustration can be operated on the re-
mote control only.