ALPINE CDA7875 Owner's Manual

Cover page of ALPINE CDA7875 Owner's Manual

Owner's Manual for ALPINE CDA7875, downloadable as a PDF file.

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­ 1 ­
CD-BA1200H
CD-BA1200H
No. S4029CDBA1200
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 3
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 6
QUICK GUIDE ................................................................................................................................................................... 7
DISASSEMBLY .................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 12
ADJUSTMENT ................................................................................................................................................................. 13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 15
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 20
VOLTAGE ........................................................................................................................................................................ 36
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 37
FUNCTION TABLE OF IC ................................................................................................................................................ 41
FL DISPLAY ..................................................................................................................................................................... 47
REPLACEMENT PARTS LIST/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 be
used.
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-BA1200H Mini Component System consisting of
CD-BA1200H (main unit) and CP-BA1200H (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.
SHARP CORPORATION
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­ 1 ­
CD-BA1200H
CD-BA1200H
No. S4029CDBA1200
CONTENTS
Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
IMPORTANT SERVICE NOTES (FOR U.K. ONLY) .......................................................................................................... 3
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 6
QUICK GUIDE ................................................................................................................................................................... 7
DISASSEMBLY .................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 12
ADJUSTMENT ................................................................................................................................................................. 13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 15
WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 20
VOLTAGE ........................................................................................................................................................................ 36
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 37
FUNCTION TABLE OF IC ................................................................................................................................................ 41
FL DISPLAY ..................................................................................................................................................................... 47
REPLACEMENT PARTS LIST/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 be
used.
SERVICE MANUAL
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
CD-BA1200H Mini Component System consisting of
CD-BA1200H (main unit) and CP-BA1200H (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.
SHARP CORPORATION
background image
CD-BA1200H
­ 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.
(For U.K.)
(Except for U.K.)
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 - OMAPPARATENANVÄNDS PÅ ANNAT SÄTT
ÄN I DENNA BRUKSANVISNING SPECIFICERAS. KAN
ANVÄNDAREN
UTSÄTTAS
FÖR
OSYNLIG
LASERSTRÅLNING, SOM ÖVERSKRIDER GRÄNSEN
FÖR LASERKLASS 1.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
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­ 3 ­
CD-BA1200H
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-BA1200H
CP-BA1200H
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.
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.
SHORT-CIRCUIT
AC POWER
SUPPLY CORD
CONNECT THE PROBE
TO GND OF CHASSIS
SCREW
PROBE
AC
UNIT
WITHSTANDING
VOLTAGE TESTER
+
-
OUT
CHASSIS SCREW
General
Power source:
AC 230 V, 50 Hz
Power consumption:
32 W
Dimensions:
Width; 270 mm (10-5/8")
Height; 300 mm (11-13/16")
Depth; 373 mm (14-11/16")
Weight:
5.0 kg (11.0 lbs.)
Amplifier section
Output power:
(For U.K.)
RMS; 20 W (10 W + 10 W)
(10 % T.H.D.)
(DIN 45 324)
(0.9 % T.H.D.)
RMS; 14.6 W (7.3 W + 7.3 W)
RMS; 20 W (10 W + 10 W)
(DIN 45 324)
(DIN 45 500)
RMS; 14.6 W (7.3 W + 7.3 W)
Output terminals:
Speakers; 8 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
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
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:
(For U.K.)
0.3 % (WRMS)
Type:
10 cm (4") full-range speaker
Maximum input power: 20 W
Rated input power:
10 W
Impedance:
8 ohms
Dimensions:
Width; 220 mm (8-11/16")
Height; 300 mm (11-13/16")
Depth; 180 mm (7-1/16")
Weight:
2.0 kg (4.4 lbs.)/each
Output power:
(Except For U.K.)
PMPO; 64 W
MPO; 32 W (16 W + 16 W)
Wow and flutter:
(Except For U.K.)
0.35 % (DIN 45 511)
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CD-BA1200H
­ 4 ­
NAMES OF PARTS
CD-BA1200H
Front panel
1. (CD) Disc Tray
2. (CD) Disc Skip Button
3. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button
4. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button
5. Timer Set Indicator
6. On/Stand-by Button
7. Timer/Sleep Button
8. Clock Button
9. Function Selector Buttons
10. Equalizer Mode Selector/Extra Bass/Demo Mode
Button
11. Volume Up/Down Buttons
12. (CD) Open/Close Button
13. Headphone Socket
14. Memory/Set Button
15. (CD/TAPE) Stop Button
16. (CD) Play/Repeat Button
(TAPE) Play Button
17. (TAPE 2) Record Pause Button
18. Tuning and Time Up/Down Buttons
30. (TAPE 1) Cassette Compartment
31. (TAPE 2) Cassette Compartment
19. (CD) Disc Number Indicators
20. Timer Indicator
21. Record Indicator
22. Sleep Indicator
23. Extra Bass Indicator
24. (CD/TUNER) Memory Indicator
25. FM Stereo Mode Indicator
26. FM Stereo Indicator
27. (CD) Repeat Indicator
28. (CD/TAPE) Play Indicator
29. (CD) Pause Indicator
19 20 21 22 23 24 25 26
29
28
27
2
1
34
5
6
10
11
12
7
8
9
13 14 15
30
31
16 17
18
Rear panel
1. AC Power Input Socket
2. Speaker Terminals
3. FM 75 Ohms Aerial Socket
4. AM Loop Aerial Socket
1
2
3
4
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­ 5 ­
CD-BA1200H
CP-BA1200H
CD-BA1200H
1. Full-Range Speaker
2. Bass Reflex Duct
3. Speaker Wire
1
2
3
1. Remote Control Transmitter LED
CD control section
2. Disc Number Select Buttons
3. Memory Button
4. Pause Button
5. Clear Button
6. Track Down/Review Button
7. Track Up/Cue Button
8. Disc Skip Button
9. Play/Repeat Button
10. Stop Button
11. Random Button
Tuner control section
12. Preset Up/Down Buttons
Tape control section
13. (TAPE 1) Play Button
14. (TAPE 2) Record Pause Button
15. (TAPE 1/2) Stop Button
16. (TAPE 2) Play Button
17. (TAPE 2) Rewind Button
18. (TAPE 2) Fast Forward Button
Common section
19. Equalizer Mode Selector Button
20. Function Selector Buttons
21. On/Stand-by Button
22. Extra Bass Button
23. Volume Up/Down Buttons
1
9
10
11
12
15
14
13
1617 18
3
28
4
5
6
7
19
20
21
23
22
Remote control

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