CD-BA160 (serv.man4). Part 1 - text - Sharp Audio Service Manual (repair manual)

cd-ba160 (serv.man4) service manual
Model
CD-BA160 (serv.man4)
Pages
19
Size
788.24 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Part 1 - text
File
cd-ba160-sm4.pdf
Date

Read Sharp CD-BA160 (serv.man4) Service Manual online

– 1 –
CD-BA160H/1700H
No. S4024CDBA160H
 CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................  2
IMPORTANT SERVICE NOTES (CD-BA1700H FOR U.K. ONLY) ...................................................................................  2
SPECIFICATIONS .............................................................................................................................................................  3
NAMES OF PARTS ...........................................................................................................................................................  4
OPERATION MANUAL ......................................................................................................................................................  6
DISASSEMBLY ..................................................................................................................................................................  9
REMOVING AND REINSTALLING THE MAIN PARTS ...................................................................................................  12
ADJUSTMENT .................................................................................................................................................................  14
NOTES ON SCHEMATIC DIAGRAM ..............................................................................................................................  20
TYPES OF TRANSISTOR AND LED ...............................................................................................................................  20
BLOCK DIAGRAM ...........................................................................................................................................................  21
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD .............................................................................................. 24
VOLTAGE ........................................................................................................................................................................  38
WAVEFORMS OF CD CIRCUIT ......................................................................................................................................  39
TROUBLESHOOTING .....................................................................................................................................................  40
FUNCTION TABLE OF IC ................................................................................................................................................  44
FL DISPLAY ...................................................................................................................................................................... 50
PARTS GUIDE/EXPLODED VIEW
PACKING METHOD (CD-BA1700H FOR U.K. ONLY)
CD-BA160H
CD-BA1700H
• 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
Illustration: CD-BA160H
Illustration: CD-BA1700H
SHARP CORPORATION
CD-BA160H mini component system consisting of
CD-BA160H (main unit) and CP-BA160H (speaker system).
CD-BA1700H mini component system consisting of
CD-BA1700H (main unit), CP-BA1700H (front speakers)
and GBOXS0041AWM1 (surround speakers).
 
• 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
Performers Protection Act 1956, the Performers Protection Acts
1963 and 1972 and to any subsequent statutory enactments and
orders.
DIFFERENCE BETWEEN
CD-BA160H AND CD-BA1700H
CD Digital Output
None
Used
Speaker terminal
2 speaker
4 speaker
Surround speaker
None
Used
CD-BA160H
SECTION
CD-BA1700H
CD-BA160H/1700H
– 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-BA1700H 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.
(For Europe)
(CD-BA1700H for U.K. Only)
PROBE
AC
OUT
UNIT
SHORT-CIRCUT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW TERMINAL
WITHSTANDING
VOLTAGE TESTER
CAUTION
Use of controls, adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
As the laser beam used in this compact disc player is harm-
ful to the eyes, do not attempt to disassemble the cabinet.
Refer servicing to qualified personnel only.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
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 KÄYTTÄMINEN MUULLA KUIN
TÄSSÄ
KÄYTTÖOHJEESSA MAINITULLA TAVALLA SAATTAA
ALTISTAA KÄYTTÄJÄN TURVALLISUUSLUOKAN 1
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
VARNING - OM APPARATEN ANVÄNDS PÅ ANNAT SÄTT
ÄN I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN UTSÄTTAS FÖR OSYNLIG
LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN
FÖR LASERKLASS 1.
CHASSIS SCREW
– 3 –
CD-BA160H/1700H
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.
SPECIFICATIONS
CD-BA160H/1700H
CP-BA160H
CP-BA1700H
GBOXS0041AWM1
General
Amplifier section (CD-BA1700H for Europe)
Compact disc player section
Tuner section
Cassette deck section
Power source:
AC 230 V, 50 Hz
Power 
consumption:
95 W
Dimensions:
Width; 270 mm (10-5/8") 
Height; 330 mm (13") 
Depth; 375 mm (14-6/8")
Weight:
6.4 kg (14.0 lbs.)
Output power:
PMPO; 320 W
MPO; 160 W (80 W + 80 W) (DIN45 324)
RMS; 100 W (50 W + 50 W) (DIN 45 324)
RMS; 74 W (37 W + 37 W) (DIN 45 500)
Input terminals:
Video/Auxiliary (audio signal); 500 mV/47 kohms
Output terminals:
Front speakers; 8 ohms
Surround speakers; 16 ohms
Headphones; 16-50 ohms (recommended; 32 ohms)
CD digital output (optical)
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)
Frequency range:
FM; 87.5 - 108 MHz
AM; 522 - 1,620 kHz
Frequency 
response:
50 - 14,000 Hz (Normal tape)
Motor:
DC motor with electronic governor x 1
Bias and erasure 
system:
AC
Tape speed:
4.76 cm/sec. (1-7/8 ips.)
Signal/noise ratio:
55 dB (TAPE 1, playback) 
50 dB (TAPE 2, recording/playback)
Wow and flutter:
0.35 % (DIN 45 511)
Heads:
TAPE-1: Playback x 1 
TAPE-2: Recording/playback x 1 
 
Erase x 1  
Type:
3-way [10 cm (4")  woofer x  2 and  5 cm (2") tweeter]
Maximum input 
power:
80 W
Rated input power:
40 W
Impedance:
8 ohms
Dimensions:
Width; 220 mm (8-11/16") 
Height; 330 mm (13") 
Depth; 227 mm (8-15/16")
Weight:
3.0 kg (6.8 lbs.)/each
Type:
10 cm (4") full-range speaker
Maximum input 
power:
30 W
Rated input power:
15 W
Impedance:
16 ohms
Dimensions:
Width; 170 mm (6-3/4") 
Height; 170 mm (6-3/4") 
Depth; 88 mm (3-1/2")
Weight:
0.5 kg (1.0 lbs.)/each
Amplifier section (CD-BA1700H for U.K.)
Output power:
RMS; 100 W (50 W + 50 W) (10 % T.H.D.)
RMS; 74 W (37 W + 37 W) (0.9 % T.H.D.)
Input terminals:
Video/Auxiliary (audio signal); 500 mV/47 kohms
Output terminals:
Front speakers; 8 ohms
Surround speakers; 16 ohms
Headphones; 16-50 ohms (recommended; 32 ohms)
CD digital output (optical)
Amplifier section (CD-BA160H)
Output power:
PMPO; 320 W
MPO; 160 W (80 W + 80 W) (DIN 45 324)
RMS; 100 W (50 W + 50 W) (DIN 45 324)
RMS; 74 W (37 W + 37 W) (DIN 45 500)
Input terminals:
Video/Auxiliary (audio signal); 500
mV/47 kohms
Output terminals:
Front speakers; 6 ohms
Headphones; 16-50 ohms (recom mended; 32 ohms)
(For Europe)
Wow and flutter:
0.3 %  (WRMS)
(For U.K)
Type:
3-way [10 cm (4")  woofer x 2 and  5 cm (2") tweeter]
Maximum input 
power:
100 W
Rated input power:
50 W
Impedance:
6 ohms
Dimensions:
Width; 220 mm (8-11/16") 
Height; 330 mm (13") 
Depth; 227 mm (8-15/16")
Weight:
3.0 kg (6.6 lbs.)/each
CD-BA160H/1700H
– 4 –
NAMES OF PARTS
CD-BA160H/1700H
Front panel
1. (CD) Disc Tray
2. (TUNER) Programme Type/Traffic Information 
Search Button
3. EON Button
4. ASPM Button 
5. Display Mode Selector Button
6. Station Selector Button
7. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button
8. Timer Set Indicator
9. On/Stand-by Button
10. Clock Button
11. Timer/Sleep Button
12. Function Selector Buttons
13. Dimmer Button
14. Volume Up/Down Buttons
15. Equalizer Mode Selector Button
16. Extra Bass/Demo Mode Button
17. (CD) Open/Close Button
18. Headphone Socket
19. Tuning and Time Up/Down Buttons
20. Memory/Set Button
21. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button
22. (CD/TAPE) Stop Button
23. (CD) Play/Repeat Button
(TAPE) Play Button
24. (TAPE 2) Record Pause Button
25. (CD) Disc Skip Button
26. (TAPE 1) Cassette Compartment
27. (TAPE 2) Cassette Compartment
28. Spectrum Analyzer/Volume Level Indicator
29. Extra Bass Indicator
30. RDS Indicator
31. Programme Type Indicator
32. Traffic Information Indicator
33. FM Stereo Mode Indicator
34. FM Stereo Indicator
35. Dynamic PTY Indicator
36. EON Indicator
37. Traffic Announcement Indicator
38. Traffic Programme Indicator
39. (CD) Repeat Indicator
40. Sleep Indicator
41. (CD/TUNER) Memory Indicator
42. Record Indicator
43. (CD) Disc Number Indicators
44. Timer Play Indicator
45. (CD) Pause Indicator
46. (CD) Play Indicator
47. Timer Record Indicator
48. (TAPE) Play Indicator
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Download Sharp CD-BA160 (serv.man4) Service Manual (Repair Manual)

Here you can read online and download Sharp CD-BA160 (serv.man4) Service Manual in PDF. CD-BA160 (serv.man4) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp CD-BA160 (serv.man4) 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.