CD-C661H (serv.man2) - Sharp Audio Service Manual (repair manual)

cd-c661h (serv.man2) service manual
Model
CD-C661H (serv.man2)
Pages
68
Size
3.47 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-c661h-sm2.pdf
Date

Read Sharp CD-C661H (serv.man2) Service Manual online

– 1 –
CD-C661H/HR
No. S5926CDC661HR
 CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................  2
IMPORTANT SERVICE NOTES (CD-C661H FOR U.K. ONLY) .......................................................................................  2
SPECIFICATIONS .............................................................................................................................................................. 3
NAMES OF PARTS ...........................................................................................................................................................  4
OPERATION MANUAL ......................................................................................................................................................  6
DISASSEMBLY ..................................................................................................................................................................  7
REMOVING AND REINSTALLING THE MAIN PARTS .....................................................................................................  9
ADJUSTMENT .................................................................................................................................................................  10
NOTES ON SCHEMATIC DIAGRAM ..............................................................................................................................  16
BLOCK DIAGRAM ...........................................................................................................................................................  17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 20
VOLTAGE ........................................................................................................................................................................  38
WAVEFORMS OF CD CIRCUIT ......................................................................................................................................  39
TROUBLESHOOTING (CD SECTION) ...........................................................................................................................  40
FUNCTION TABLE OF IC ................................................................................................................................................  45
WIRING OF PRIMARILY SUPPLY LEADS (CD-C661H FOR U.K. ONLY) .....................................................................  51
FL DISPLAY ...................................................................................................................................................................... 52
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (CD-C661H FOR U.K. ONLY)
CD-C661H
CD-C661HR
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified be
used.
SERVICE MANUAL
SHARP CORPORATION
CD-C661H mini component system consisting of CD-C661H
(main unit) and CP-C661H (speaker system).
• Note for users in U.K.
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
Prefomers Protection Act 1956, the Preformers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
DIFFERENCE BETWEEN CD-C661H AND CD-C661HR
CD-C661H
CD-C661HR
Speaker
Illustration: CD-C661H
CD-C661H/HR
– 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 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.
IMPORTANT SERVICE NOTES (CD-C661H 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.
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 buzzor sounds.
(CD-C661H For U.K.)
(CD-C661H Except for U.K./CD-C661HR)
SHORT-CIRCUIT
AC POWER 
SUPPLY CORD
CONNECT THE PROBE
TO GND 
OF CHASSIS
SCREW
 PROBE
AC
UNIT
WITHSTANDING
VOLTAGE TESTER
+
-
OUT
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
LASER KLASSE 1
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
CAUTION-INVISIBLE  LASER  RADIATION  WHEN  OPEN.  DO  NOT  STARE  INTO 
BEAM  OR  VIEW  DIRECTLY  WITH  OPTICAL  INSTRUMENTS.
VARNING-OSYNLIG  LASERSTRALNING  NAR  DENNA  DEL  AR  OPPNAD.  STIRRA
EJ  IN  I  STRALEN  OCH  BETRAKTA  EJ  STRALEN   MED  OPTISKA  INSTRUMENT.
ADVERSEL-USYNLIG  LASERSTRALING  VED  ABNING.  SE  IKKE  IND  I 
STRALEN-HELLER  IKKE  MED  OPTISKE  INSTRUMENTER.
VARO!  AVATTAESSA  OLET  ALTTIINA  NAKYMATON  LASERSATEILYLLE.
ALA  TUIJOTA  SATEESEEN  ALAKA  KATSO  SITA  OPTISEN  LAITTEEN  LAPI.
VARNING-OSYNLIG  LASERSTRALNING  NAR  DENNA  DEL  AR  OPPNAD.
STIRRA  EJ IN  I  STRALEN  OCH  BETRAKTA  EJ  STRALEN  GENOM  OPTISKT  
INSTRUMENT.
ADVERSEL-USYNLIG  LASERSTRALING  NAR  DEKSEL  APNES.  STIRR IKKE  
INN  I  STRALEN  ELLER  SE  DIREKTE  MED  OPTISKE  INSTRUMENTER.
VAROITUS! LAITTEEN KéYT Té MINEN MUULLA KUIN
TéSSé
KéYTTô OHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KéY TTéJ éN T URVALLISUUSLUOKAN 1
YLITTéVéLLE NéKYMéTTôMéLLE LASERSéTEILYLLE.
VARNING - OM APPARATEN ANVéNDS Pè ANNAT SéTT
éN  I DENNA BRUKSANVISNING SPECIFICERAS. KAN
A NV é N DA RE N  UT S é T T AS  Fô R  OSY NLI G
LASERSTRèLNING, SOM ôVERSKRIDER GRéNSEN FôR
LASERKLASS 1.
CHASSIS SCREW
– 3 –
CD-C661H/HR
  Cassette deck section
Frequency response:
50 - 14,000 Hz (Normal tape)
Signal/noise ratio:
55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/
playback)
Wow and flutter:
0.2 % (DIN 45 511)
(CD-C661H Except for
U.K./CD-C661HR)
Wow and flutter:
0.15 % (WRMS)
(CD-C661H For U.K.)
 Speaker section
Type:
3-way type [20 cm (7-7/8")
woofer, 8 cm (3-1/8") tweeter
and super tweeter]
Maximum input power:
300 W
Rated input power:
150 W
Impedance:
6 ohms
Dimensions:
Width; 250 mm (9-13/16")
Height; 330 mm (13")
Depth; 335 mm (13-1/4")
Weight:
6.1 kg (13.4 lbs.)/each
CP-C661H (CD-C661H ONLY)
  General
Power source:
AC 230 V, 50 Hz
Power consumption:
180 W
Dimensions:
Width; 270 mm (10-5/8")
Height; 330 mm (13")
Depth; 358 mm (14-1/8")
Weight:
10.5 kg (23.1 lbs.)
  Amplifier section
Output power:
PMPO; 880 W (total)
(CD-C661H Except for
MPO; 440 W (220 W + 220 W)
U.K./CD-C661HR)
(DIN 45 324)
RMS; 300 W (150 W + 150 W)
(DIN 45 324)
Output power:
RMS; 300 W (150 W + 150 W)
(CD-C661H For U.K.)
(10 % T.H.D.)
Output terminals:
Speakers; 6 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)
Input terminal:
Video/Auxiliary (audio signal);
500 mV/47 kohms
  Compact disc player section
Type:
3-disc multi-play compact disc
player
Signal readout:
Non-contact, 3-beam semi-
conductor laser pickup
D/A Converter:
1-bit D/A converter
Frequency response:
20 - 20,000 Hz
Dynamic range:
90 dB (1 kHz)
  Tuner section
Frequency range:
FM; 87.5 - 108 MHz
AM; 522 - 1,620 kHz
Specifications for this model are subject to change without
prior notice.
SPECIFICATIONS
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
CD-C661H/661HR
CD-C661H/HR
– 4 –
NAMES OF PARTS
 Front Panel
1. Disc Number Selector Buttons
2. Disc Tray
3. Multi Indicator
4. Disc Skip Button
5. Open/Close Button
6. RDS Indicator
7. Programme Type Indicator
8. Traffic Information Indicator
9. Extra Bass Indicator
10. FM Stereo Mode Indicator
11. FM Stereo Indicator
12. Traffic Programme Indicator
13. Traffic Announcement Indicator
14. (CD) Play Indicator
15. (CD) Pause Indicator
16. Dynamic PTY Indicator
17. EON Indicator
18. (CD) Repeat Indicator
19. (CD) Disc Number Indicators
20. (CD/TUNER) Memory Indicator
21. Timer Play Indicator
22. Timer Record Indicator
23. Spectrum Analyzer/Volume Level Indicator
24. (TAPE 2) Racord Indicator
25. Sleep Indicator
26. Timer Set Indicator
27. (TUNER) Display mode Selector Button
28. (TUNER) Station Selector Button
29. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button
30. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button
31. Timer/Sleep Button
32. Clock Button
33. (TUNER) EON Button
34. (TUNER) Programme Type/Traffic Information Search
Button
35. (TUNER) ASPM Button
36. On/Stand-by Button
37. Function Selector Buttons
38. Equalizer Mode Selector Button
39. Dimmer Button
40. Extra Bass/Demo Mode Button
41. Headphone Socket
42. (TAPE 2) Record Pause Button
43. Memory/Set Button
44. (CD/TAPE) Stop Button
45. (TAPE) Play Button
(CD) Play/Repeat Button
46. Tuning and Time Up/Down Buttons
47. Volume Control
48. (TAPE 1) Cassette Compartment
49. (TAPE 2) Cassette Compartment
CD-C661H/661HR
23
24 25
2
1
4 5
3
21
47
9
10
11
12
13
14
16 17
20
22
15
19
18
6 7 8
26 27 28
45
40
41 42 43
29
30
37
39
38
36
35
31
32
33
34
44
46
49
48
Page of 68
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Download Sharp CD-C661H (serv.man2) Service Manual (Repair Manual)

Here you can read online and download Sharp CD-C661H (serv.man2) Service Manual in PDF. CD-C661H (serv.man2) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp CD-C661H (serv.man2) System. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.