Sharp CDBA-2600-H Service manual

CD-BA250H/CD-BA2600H
RTV servis Horvat
Tel: ++385-31-856-842 Tel/fax: ++385-31-856-139 Mob: 098-788-319
www.rtv-horvat-dj.hr
SERVICE MANUAL
No. S4126CDBA250H
MINI COMPONENT SYSTEM
MODEL CD-BA250H
CD-BA250H Mini Component System consisting of CD-BA250H (main unit) and CP-BA250H (speaker system).
MINI COMPONENT SYSTEM
MODEL CD-BA2600H
CD-BA2600H Mini Component System consisting of CD-BA2600H (main unit) and CP-BA2600H (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 Performers Protection Act 1956, the Performers Protection Acts 1963 and 1972 and to any subsequent statutory enactments and orders.
CONTENTS
SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................2
IMPORTANT SERVICE NOTES (CD-BA250H FOR U.K. ONLY) ..................................................................................... 3
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
DISASSEMBLY................................................................................................................................................................ 11
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 14
ADJUSTMENT ................................................................................................................................................................. 15
BLOCK DIAGRAM ........................................................................................................................................................... 19
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................22
VOLTAGE ........................................................................................................................................................................ 38
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 39
TYPES OF TRANSISTOR AND LED................................................................................................................................39
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 40
TROUBLESHOOTING ..................................................................................................................................................... 41
FUNCTION TABLE OF IC................................................................................................................................................ 45
FL DISPLAY......................................................................................................................................................................51
WIRING OF PRIMARILY SUPPLY LEADS (CD-BA250H FOR U.K. ONLY)....................................................................52
REPLACEMENT PARTS LIST/EXPLODED VIEW PACKING METHOD (CD-BA250H 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.
Page
SHARP CORPORATION
– 1 –
This document has been published to be used for after sales service only. The contents are subject to change without notice.
CD-BA250H/CD-BA2600H
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.
(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.
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 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.
YLITTÄVÄLLE NÄKYMÄTTÖMÄLLE
(CD-BA250H for U.K. only)
(Except for U.K.)
– 2 –
IMPORTANT SERVICE NOTES (CD-BA250H 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.
AC
WITHSTANDING VOLTAGE TESTER
CD-BA250H/CD-BA2600H
PROBE
+
OUT
-
SHORT-CIRCUIT AC POWER SUPPLY CORD
CHASSIS SCREW
UNIT
CONNECT THE PROBE TO GND OF CHASSIS SCREW
SPECIFICATIONS
CD-BA250H/CD-BA2600H
General
Power source Power consumption
Dimensions
Weight
( * ) This power consumption value is obtained when the demonstration mode is
cancelled in the power stand-by mode. cancel the demonstration mode.
Amplifier (CD-BA250H for U.K.)
Output power
Output terminals
Input terminals
Amplifier (Except for U.K.)
Output power
Output terminals
Input terminals
CD player
Type Signal readout D/A converter Frequency response Dynamic range
AC 230 V, 50 Hz Power on: 124 W Power stand-by: 0.6 W (*) Width: 270 mm (10-5/8")
Height: 330 mm (13") Depth: 340 mm (13-3/8")
6.7 kg (14.7 lbs.)
RMS: 150 W (75 W + 75 W) (10 % T.H.D.) RMS: 104 W (52 W + 52 W) (0.9 % T.H.D.) Speakers: 6 ohms Headphones: 16 - 50 ohms (recommended: 32 ohms) Video/Auxiliary (audio signal): 500 mV/47 kohms
PMPO: 480 W MPO: 240 W (120 W + 120 W) (DIN 45 324) RMS: 150 W (75 W + 75 W) (DIN 45 324) RMS: 104 W (52 W + 52 W) (DIN 45 500) Speakers: 6 ohms Headphones: 16 - 50 ohms (recommended: 32 ohms) Video/Auxiliary (audio signal): 500 mV/47 kohms
3-disc multi-play compact disc player Non-contact, 3-beam semiconductor laser pickup 1-bit D/A converter 20 - 20,000 Hz 90 dB (1 kHz)
Tuner
Frequency range
FM: 87.5 - 108 MHz AM: 522 - 1,620 kHz
Cassette deck (CD-BA250H for U.K.)
Frequency response Signal/noise ratio
Wow and flutter
50 - 14,000 Hz (Normal tape) 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
0.3 % (WRMS)
Cassette deck (Except for U.K.)
Frequency response Signal/noise ratio
Wow and flutter
CP-BA250H/CP-BA2600H
Type
Maximum input power Rated input power Impedance Dimensions
Weight
Specifications for this model are subject to change without prior notice.
50 - 14,000 Hz (Normal tape) 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
0.35 % (DIN 45 511)
2-way type speaker system 5 cm (2") Tweeter 13 cm (5-1/4") Woofer 150 W 75 W 6 ohms Width: 220 mm (8-11/16")
Height: 330 mm (13") Depth: 217 mm (8-9/16")
3.0 kg (6.6 lbs.)/each
– 3 –
CD-BA250H/CD-BA2600H
NAMES OF PARTS
CD-BA250H/CD-BA2600H
Front panel
1. Disc Tray
2. Timer Set Indicator
3. On/Stand-by Button
4. Tape 2 Cassette Compartment
5. Tape 1 Cassette Compartment
6. Equalizer Mode Select Button
7. Volume Up and Down Buttons
8. Extra Bass/Demo Mode Button
9. Disc Tray Open/Close Button
10. Disc Skip Button
11. Tuning and Time Up Button
12. CD or Tape Stop Button
13. CD Button
14. RDS Programme Type/Traffic Information Search Button
15. RDS EON Button
16. RDS ASPM (Auto Station Programme Memory) Button
17. Dimmer Button
18. Clock Button
19. Timer/Sleep Button
20. Headphone Socket
21. RDS Display Mode Selector Button
22. Video/Auxiliary Button
23. Tape (1 2) Button
24. Tuner (Band) Button
25. CD Play or Repeat, Tape Play Button
26. CD Track Up or Fast Forward, Tape 2 Fast Forward, Tuner Preset Up Button
27. Tuning and Time Down Button
28. Memory/Set Button
29. Tape 2 Record Pause Button
30. CD Track Down or Fast Reverse, Tape 2 Rewind, Tuner Preset Down Button
1 2
3
17 18
67
131211
8
9 10
4 5
161514
21 22
23 24
Display
1. RDS Indicator
2. Programme Type Indicator
3. Traffic Announcement Indicator
4. Extra Bass Indicator
5. FM Stereo Mode Indicator
6. Traffic Information Indicator
7. Traffic Programme Indicator
8. CD Play Indicator
9. FM Stereo Receiving Indicator
10. Dynamic PTY Indicator
11. EON Indicator
12. CD Repeat Play Indicator
13. CD Pause Indicator
14. Disc Number Indicators
15. Timer Play Indicator
16. Timer Recording Indicator
17. Tape 2 Record Indicator
18. Memory Indicator
19. Tape Play Indicator
20. Sleep Indicator
21. Spectrum Analyser/Volume Level Indicator
19 20
27 28 29 30
123
4 5
9101112 13
21 21
25 26
14
6 7
17
8
1819 20
21
15 16
– 4 –
CD-BA250H/CD-BA2600H
Rear panel
1. FM 75 Ohms Aerial Sock
2. AM Loop Aerial Socket
3. Video/Auxiliary (Audio Signal) Input Sockets
4. Speaker Terminals
5. AC Power Lead
CD-BA250H/CD-BA2600H
1 2 3 4
5
Remote control
1. Remote Control Transmitter
2. Disc Number Select Buttons
3. CD Pause Button
4. CD Memory Button
5. CD Track Down or Fast Reverse Button
6. CD Clear Button
7. Tape 1 Play Button
8. Tape 1/Tape 2 Stop Button
9. Equalizer Mode Select Button
10. Tape 2 Record Pause Button
11. CD Button
12. Tuner (Band) Button
13. On/Stand-by Button
14. Extra Bass Button
15. CD Stop Button
16. CD Play or Repeat Button
17. CD Track Up or Fast Forward Button
18. CD Random Button
19. Tuner Preset Up and Down Buttons
20. Tape 2 Play Button
21. Tape 2 Rewind Button
22. Tape 2 Fast Forward Button
23. Video/Auxiliary Button
24. Tape (1
25. Volume Up and Down Buttons
2) Button
10 11 12
13
1
2
15
3
16
4
17
5 6
7
18 19
20 21
8 9
22 23
24 25
14
Buttons with " " mark in the illustration can be operated on the remote control
only.
Other buttons can be operated both on the main unit and the remote control.
– 5 –
CD-BA250H/CD-BA2600H
CP-BA250H/CP-BA2600H
Speaker system
1. Tweeter
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
1
2
Setting the Clock
3
OPERATION MANUAL
4
Press the TUNING/TIME ( or ) button to adjust the hour and then press the MEMORY/SET button.
Press the TUNING/TIME ( or ) button once to advance the time by 1 hour. Holdit down to advance continuously.
When the 12-hour display is selected, "AM" will change automatically to "PM".
5
Press the TUNING/TIME ( or ) button to adjust the minutes and then press the MEMORY/SET button.
3
4
In this example, the clock is set for the 24-hour (0:00) display.
1
Press the ON/STAND-BY button to turn the power on.
2
Press the CLOCK button and within 5 seconds, press the MEMO­RY/SET button.
3
Press the TUNING/TIME ( or ) button to select 24-hour or 12­hour display and then press the MEMORY/SET button.
"0:00" The 24-hour display will appear. (0:00 - 23:59) "AM 12:00" The 12-hour display will appear. (AM 12:00 - PM 11:59) "AM 0:00" The 12-hour display will appear. (AM 0:00 - PM 11:59) Note that this can only be set when the unit is first installed or it has been reset.
(Refer to step 3 under "If trouble occurs")
Press the TUNING/TIME ( or ) button once to advance the time by 1 minute. Hold it down to change the time in 5-minute intervals.
The hour will not advance even if minutes advance from "59" to "00". The clock begins counting from "0" seconds. (Seconds are not displayed.)
The time display will disappear after a few seconds.
To confirm the time display:
Press the CLOCK button. The time display will appear for about 5 seconds.
Note:
The "CLOCK" or time will flash at the push of the CLOCK button when the AC power supply is restored after a power failure or unplugging the unit. Readjust the clock as follows.
To readjust the clock:
Perform "Setting the Clock" from the beginning. If the time display is flashing, step 3 (for selecting the 24-hour or 12-hour display) will be skipped.
To change the 24-hour or 12-hour display:
1 Clear all the programmed contents. [Perform to step 3 under "If trouble occurs" 2 Perform "Setting the Clock" from the beginning.
– 6 –
Troubleshooting Chart
CD-BA250H/CD-BA2600H
Many potential "problems" can be resolved by the owner without calling a service technician. If something is wrong with this product, check the following before calling your author­ised SHARP dealer or service centre.
General
The clock is not on time. Did a power failure occur? Reset the
When a button is pressed, the unit does not respond.
No sound is heard. Is the volume level set to "0"?
Symptom Possible cause
clock. Set this unit to the power stand-by mode
and then turn it back on. If the unit still malfunctions, reset it. Refer
to step 3 under "If trouble occurs"
Are the headphones connected? Are the speaker wires disconnected?
CD player
Playback does not start. Is the disc loaded upside down? Playback stops in the middle or is
not performed properly. Playback sounds are skipped, or
stopped in the middle of a track.
Symptom Possible cause
Does the disc satisfy the standards? Is the disc distorted or scratched? Is the unit located near excessive vibra-
tions? Is the disc very dirty? Has condensation formed inside the unit?
Tuner
Radio makes unusual noise con­secutively.
Symptom Possible cause
Is the unit placed near the TV or compu­ter?
Is the FM aerial or AM loop aerial placed properly? Move the AC power lead away from the aerial if located near.
Cassette deck
Cannot record. Is the erase-prevention tab removed? Cannot record tracks with proper
sound quality. Cannot erase completely. Sound skipping. Is there any slack?
Cannot hear treble. Are the capstans, pinch rollers, or heads Sound fluctuation. Cannot remove the tape. If a power failure occurs during playback,
Symptom Possible cause
Is it a normal tape? (You cannot record on ametal or CrO tape.)
Is the tape stretched?
dirty?
the heads remain engaged with the tape. Do not open the compartment forcibly. Wait until electricity resumes.
Remote control
The remote control does not oper­ate.
Symptom Possible cause
Is the AC power lead of the unit plugged in?
Is the battery polarity respected? Are the batteries dead? Is the distance or angle incorrect? Does the remote control sensor receive
strong light?
Condensation
Sudden temperature changes, storage or opera­tion in an extremely humid environment may cause condensation inside the cabinet (CD pick­up, tape heads, etc.) or on the transmitter on the remote control. Condensation can cause the unit to malfunction. If this happens, leave the power on with no disc (or cassette) in the unit until normal playback is possible (about 1 hour). Wipe off any condensa­tion on the transmitter with a soft cloth before op­erating the unit.
Troubleshooting Chart
If trouble occurs
When this product is subjected to strong external interference (mechanical shock, excessive static electricity, abnormal supply voltage due to lightning, etc.) or if it is operated incorrectly, it may malfunction.
If such a problem occurs, do the following: 1 Set the unit to the stand-by mode and turn the power on again.
2 If the unit is not restored in step 1, unplug and plug in the unit, and then turn
the power on.
3 If neither step 1 nor 2 restores the unit, do the following:
Press the ON/STAND-BY button to enter the power stand-by mode. Whilst pressing down the / button and the X-BASS/DEMO button, press the ON/STAND-BY button until "CLEAR AL" appears.
Caution:
This operation will erase all data stored in memory including clock, timer settings, tuner preset, and CD programme.
Before transporting the unit
1 Press the ON/STAND-BY button to turn the power on. 2 Press the CD button. 3 Press the OPEN/CLOSE button to open the disc tray.
Remove all CDs inserted in the unit.
4 Press the OPEN/CLOSE button to close the disc tray.
Make sure that "NO DISC" is displayed.
5 Press the ON/STAND-BY button to enter the stand-by mode, and then unplug
the AC power lead from the AC socket.
Remote Control
Test of the remote control
Face the remote control directly to the remote sensor on the unit.
The remote control can be used within the range shown below:
Press the ON/STAND-BY button. Does the power turn on? Now, you can enjoy the music.
Remote sensor
0.2 m - 6 m (8" - 20')
– 7 –
Accessories
123
Battery installation of remote control
Use 2 “AA” size batteries (UM/SUM-3, R6, HP-7 or similar). Batteries are not included.
Remove the
Insert the batteries
Replace the cover.
battery cover.
as shown.
1
2
2
FM antenna × 1
Remote control × 1
AM loop antenna × 1
System connections
3
3
AM loop antenna
FM antenna
Red Black
Right speaker
Left speaker
Wall socket (AC 230 V, 50 Hz) (For U. K.)
Wall socket (AC 230 V, 50 Hz) (Except for U. K.)
Right speaker
Left speaker
RCA lead (not supplied)
To the line output sockets
VCR, DVD, etc.
TV
CD-BA250H/CD-BA2600H
– 8 –
Turn on your system
4
4
1
2
The first time the unit is plugged, the unit will enter the demonstra­tion mode. You will see words scroll.
Press the X-BASS/DEMO button to cancel the demon­stration mode.
Press the ON/ STAND-BY button to turn the power on.
1
Press the CD button.
2
Press the OPEN/CLOSE button to open the disc tray.
3
Place the CD(s) on the disc tray, label side up. When loading a third disc, press the DISC SKIP button to turn the disc tray, then place the CD in the open position.
4
Press the OPEN/CLOSE button to close the disc tray.
5
To select the CD you want to listen to first, press one of 1 - 3 buttons on the remote control.
6
Press the button to start playback.
12 cm (5”)
8 cm (3”)
Listening to a CD (CDs)
FM stereo mode indicator
FM stereo receiving indicator
1
Press the TUNER (BAND) button repeat­edly to select the desired frequency band (FM or AM).
2
Press the TUNING/TIME ( or ) but­ton to tune in to the desired station. When the TUNING/TIME button is pressed for more than 0.5 seconds, scan­ning will start automatically and the tuner will stop at the first receivable broadcast station.
To receive an FM stereo transmission: Press the TUNER (BAND) button to display the
“ST” indicator.
“ ” will appear when an FM broadcast is in ste-
reo.
Listening to the radio
If trouble occurs
When this product is subjected to strong external interference (mechanical shock, excessive static electricity, abnormal sup­ply voltage due to lightning, etc.) or if it is operated incorrectly, it may malfunction.
If such a problem occurs, do the following:
1. Set the unit to the stand-by mode and turn the power on again.
2.
If the unit is not restored in step 1, unplug and plug in the unit, and then turn the power on.
3.
If neither step 1 nor 2 restores the unit, do the follow­ing:
Press the ON/STAND-BY button to enter the power stand-by mode. Whilst pressing down the button and the X-BASS/ DEMO button, press the ON/STAND-BY button until “CLEAR AL” appears.
Maintenance
Dirty heads, capstans or pinch rollers can cause poor
sound and tape jams. Clean these parts with a cotton swab moistened with commercial head/pinch roller cleaner or isopropyl alcohol.
When cleaning the heads, pinch rollers, etc., unplug the
unit which contains high voltages.
After long use, the deck’s heads and capstans may be-
come magnetised, causing poor sound. Demagenetise these parts once every 30 hours of playing/recording time by using a commercial tape head demagnetiser. Read the demagnetiser’s instructions carefully before use.
Clean the dust or stain on the CD pickup lens using a com-
mercial cleaning disc (brush type).
1
Open the cassette door by pushing the area marked “ PUSH EJECT”.
2
Load a cassette into the TAPE 1 or TAPE 2 cassette compartment with the side to be played facing toward you.
3
Press the TAPE (1 2) button to select the cassette you want to listen to.
4
Press the button to start playback.
TAPE 1
TAPE 2
Listening to a cassette tape (TAPE 1 or TAPE 2)
TAPE 1
TAPE 2
A
C
C
D
E
B
B
A Playback head B Capstan
D Erase head E Recording/Playback head
C Pinch roller
➀ ➁
– 9 –
CD-BA250H/CD-BA2600H
CD-BA250H/CD-BA2600H
Using the Radio Data System (RDS)
RDS is a broadcasting service which a growing number of FM stations provide. These FM stations send additional signals along with their regular programme signals. They send their station names, and information about the type of pro­gramme such as sports or music, etc.
When tuned to an RDS station, "RDS" and the station name will be displayed. "TP" (Traffic Programme) will appear on the display when the received broadcast car­ries traffic information, and "TA" (Traffic Announcement) will appear whilst a traffic information is on air. "EON" will appear whilst the EON (Enhanced Other Networks information) data is broadcast. "PTYI" (Dynamic PTY Indicator) will appear whilst the Dynamic PTY station is received. "RT" (Radio Text) will appear whilst the unit receives the Radio text data. "CT" (Clock Time) will appear whilst the unit receives the RDS CT data.
You can control the RDS by using the buttons on the main unit only.
Information provided by RDS
Each time the DISPLAY MODE button is pressed, the display will switch as fol­lows:
Station name (PS) Frequency
Programme type (PTY) RDS clock time
(8 Languages)
Programme type (PTY) Clock-time and date (CT)
(English fixed)
Date (for 3 seconds)
Descriptions of the PTY (Programme Type) codes, TP (Traffic Programme) and TA (Traffic Announcement).
You can search for and receive the following PTY, TP and TA signals.
NEWS
AFFAIRS
INFO SPORT EDUCATE
DRAMA CULTURE
SCIENCE VARIED
POP M
ROCK M
EASY M
LIGHT M
CLASSICS
OTHER M
WEATHER FINANCE CHILDREN
Short accounts of facts, events and publicly expressed views, reportage and actuality.
Topical programme expanding or enlarging upon the news, generally in different presentation style or concept, including debate, or analysis.
Programmes whose purpose is to impart advice in the widest sense. Programme concerned with any aspect of sport. Programme intended primarily to educate, of which the formal ele-
ment is fundamental. All radio plays and serials. Programmes concerned with any aspect of national or regional cul-
ture, including language, theatre, etc. Programmes about the natural sciences and technology. Used for mainly speech-based programmes usually of light-entertain-
ment nature, not covered by other categories. Examples include: quizzes, panel games, personality interviews.
Commercial music, which would generally be considered to be of cur­rent popular appeal, often featuring in current or recent record sales charts.
Contemporary modern music, usually written and performed by young musicians.
Current contemporary music considered to be "easy-listening", as op­posed to Pop, Rock or Classical, or one of the specialised music styles, Jazz, Folk or Country. Music in this category is often but not always, vocal, and usually of short duration.
Classical music for general, rather than specialist appreciation. Ex­amples of music in this category are instrumental music, and vocal or choral works.
Performances of major orchestral works, symphonies, chamber mu­sic, etc., and including Grand Opera.
Musical styles not fitting into any of the other categories. Particularly used for specialist music of which Rhythm & Blues and Reggae are examples.
Weather reports and forecasts and meteorological information. Stock Market reports, commerce, trading, etc. For programmes targeted at a young audience, primarily for entertain-
ment and interest, rather than where the objective is to educate.
When you are tuning in to a station other than an RDS station or to an RDS station which sends weak signal, the display will change in the following order:
Radio text (RT)
NO PS NO PTY
NO RT
FM 98.80 MHz NO CT
SOCIAL
RELIGION
PHONE IN
TRAVEL
LEISURE
JAZZ COUNTRY
NATION M
OLDIES FOLK M
DOCU­MENT
TEST
ALARM !
NONE TP TA
Note:
When you select a programme in the EON stand-by mode, the unit will display "TI" instead of "TA".
Programmes about people and things that influence them individually or in groups. Includes: sociology, history, geography, psychology and society.
Any aspect of beliefs and faiths, involving a God or Gods, the nature of existence and ethics.
Involving members of the public expressing their views either by phone or at a public forum.
Features and programmes concerned with travel to near and far des­tinations, package tours and travel ideas and opportunities. Not for use for announcements about problems, delays, or roadworks affect­ing immediate travel where TP/TA should be used.
Programmes concerned with recreational activities in which the listen­er might participate. Examples include, Gardening, Fishing, Antique collecting, Cooking, Food & Wine, etc.
Polyphonic, syncopated music characterised by improvisation. Songs which originate from, or continue the musical tradition of the
American Southern States. Characterised by a straightforward melo­dy and narrative story line.
Current Popular Music of the Nation or Region in that country's lan­guage, as opposed to International 'Pop' which is usually US or UK inspired and in English.
Music from the so-called "golden age" of popular music. Music which has its roots in the musical culture of a particular nation,
usually played on acoustic instruments. The narrative or story may be based on historical events or people.
Programme concerned with factual matters, presented in an investi­gative style.
Broadcast when testing emergency broadcast equipment or receiv­ers.
Emergency announcement made under exceptional circumstances to give warning of events causing danger of a general nature.
No programme type (receive only). Broadcasts which carry traffic announcements. Traffic announcements are being broadcast.
– 10 –
DISASSEMBLY
Caution on Disassembly
Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance:
1. Take cassette tape and compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing the unit, be sure to rearrange the leads where they were before disassembling.
4. Take sufficient care on static electricity of integrated circuits and other circuits when servicing.
CD-BA250H/CD-BA2600H
(A1) x 2 ø3 x 12mm
Side Panel (Right)
(B1) x 2 ø3 x 10mm
CD-BA250H/CD-BA2600H
Top Cabinet
(A1) x 2 ø3 x 12mm
CD-BA250H/CD-BA2600H
STEP
10 Turntable 1. Hook........................ (K1) x2 12-4
11 Disc Tray 1.
12 CD Servo PWB 1. Screw ......................(M1) x1 12-6
13 CD Mechanism 1. Hook........................ (N1) x2 13-1
Note 1: How to open the changer manually. (Fig. 11-3)
1. In this state, turn fully the lock lever in the arrow direction through
2.
3. After that, push forward the CD slide chassis.
Note 2:
1. After removing the connector for the optical pickup from the
REMOVAL
1 Top Cabinet 1. Screw ...................... (A1) x4 11-1
2 Side Panel 1. Screw ...................... (B1) x8 11-1
(Left/Right)
3 CD Player Unit/ 1. Turn on the power supply,.. 11-2
CD Tray Cover open the disc tray, take out
4 Rear Panel with 1. Screw ....................(D1) x10 11-2
Fan Motor 2. Socket ..................... (D2) x1
5 Main PWB 1. Screw ...................... (E1) x3
6 Front Panel 1. Screw .......................(F1) x2 12-2
7 Display PWB 1. Screw ....................(G1) x12 12-3
8 Tape Mechanism 1. Open the cassette holder. .. 12-3
9
Headphones PWB
(Note 2) 2. Hook........................ (M2) x2
the hole on the loading chassis bottom.
While holding the lock lever, rotate the cam gear anticlockwise until the
cam gear rib engages with the clamp lever.
connector, wrap the conductive aluminium foil around the front end of the connector so as to protect the optical pickup from electro­static damage.
PROCEDURE
the CD tray cover, and close. (Note 1)
2. Screw ...................... (C1) x1
3. Hook........................ (C2) x3
4. Hook........................ (C3) x2
5. Socket ..................... (C4) x2
2. Socket ..................... (E2) x3
3. Flat Cable ............... (E3) x1
4. Flat Wire.................. (E4) x1
2. Flat Cable ...............(G2) x1
2. Screw...................... (H1) x5
1. Screw .......................(J1) x1 12-3
2. Cover ...................... (K2) x1
Turn fully the lock lever in the
arrow direction
2.
While holding the lock lever,rotate the cam gear until the cam gear rib engages with the clamp lever.
3.
Push the slide chassis backward to
engage the claw with the groove and remove it in the direction
of the arrow. ...............
3. Socket .....................(M3) x4
2. Hook........................ (N2) x3
.
(L1) x6
(Fig. 12-1)
FIGURE
11-2,12-2
11-3 12-1
12-5
Side Panel (Left)
(B1) x 4 ø3 x 10mm
Rear Panel
(B1) x 2 ø3 x 10mm
Figure 11-1
(C3) x 1
Pull
Rear Panel
(C1) x 1 ø3 x 10mm
(D2) x 1
(D1) x 8 ø3 x 10mm
CD Servo PWB
(C4) x 2
1
Main PWB
Figure 11-2
CD Tray Cover
Lug Wire
(D1) x 2 ø3 x 10mm
Lock Lever
CD Player Unit (Bottom View)
(C2) x 3
1
2
CD Player Unit
(C3) x 1
(E1) x 1 ø3 x 10mm
Figure 11-3
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2. When fining back the cam gear assembly, let it lock by front movement.
– 11 –
CD-BA250H/CD-BA2600H
(K2) x 1
Clamp Lever
Turntable
CD Player Unit (Top View)
Power PWB
(E3) x 1
Transformer PWB
(E2) x 2
(E1) x 2
ø3 x 10mm
(E2) x 1
Figure 12-1
Cam Gear Rib
(E4) x 1
Headphones PWB
Front Panel
Slide Chassis
(K1) x 2
CD Player Unit
Figure 12-4
(L1) x 3
3
2
(G1) x 12 ø3 x 10mm
Tape Mechanism
(H1) x 5 ø3 x 10mm
(J1) x 1 ø3 x 10mm
Headphones PWB
Main PWB
Figure 12-2
(G2) x 1
Figure 12-3
(F1) x 2
ø3 x 8mm
Front Panel
Lug Wire
Display PWB
Open
Cassette Holder
1
(M2) x 2
(M3) x 2
(M1) x 1 ø3 x 8mm
(M3) x 2
Figure 12-5
CD Servo
PWB
Figure 12-6
(L1) x 3
Slide Chassis
– 12 –
CD-BA250H/CD-BA2600H
CD Mechanism
(N1) x 1
(N2) x 3
(N1) x 1
Figure 13-1
CP-BA250H/CP-BA2600H
STEP
Front Panel
REMOVAL PROCEDURE
1 Front Panel 1. Net......................... (A1) x1 13-2
2 Woofer 1. Screw .................... (B1) x4 13-3
3 Tweeter 1. Screw .................... (C1) x2 13-3
(A1) x 1
Screwdriver
Driver should be pried away
Speaker Box
from Speaker Box.
Figure 13-2
FIGURE
(C1) x 2
ø3 x 10mm
Tweeter
(B1) x 4
ø4 x 12mm
Woofer
Figure 13-3
– 13 –
CD-BA250H/CD-BA2600H
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 6 and 8 of the disassembly method to remove the tape mechanism.
How to remove the record/playback and erase heads (TAPE 2) (See Fig. 14-1)
1. When you remove the screws (A1) x 2 pcs., the recording/ playback head and three-dimensional head of the erasing head can be removed.
Erase Head
TAPE 2
Clutch Ass'y
Record/Playback Head
How to remove the playback head (TAPE 1) (See Fig. 14-2)
1. When you remove the screws (B1) x 2 pcs., the playback head.
How to remove the pinch roller (TAPE 1/2) (See Fig. 14-3)
1. Carefully bend the pinch roller pawl in the direction of the arrow <A>, and remove the pinch roller (C1) x 1 pc., in the direction of the arrow <B>.
Note:
When installing the pinch roller, pay attention to the spring mounting position.
How to remove the belt (TAPE 2) (See Fig. 14-4)
1. Remove the main belt (D1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (D2) x 1 pc.
How to remove the belt (TAPE 1) (See Fig. 14-4)
1. Remove the main belt (E1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
(A1) x 2 Ø2 x 9mm
TAPE 1
(B1) x 2 Ø2 x 9mm
Figure 14-1
Figure 14-2
Clutch Ass'y
Playback Head
How to remove the motor (See Fig. 14-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Motor
Clutch Ass'y
(F1) x 2
Ø2.6 x 5 mm
– 14 –
TAPE 2
Pinch Roller (C1) x 1
FF/REW Belt (D2) x 1
Main Belt (D1) x 1
Pull
<B>
Figure 14-3
Motor
Main Belt (E1) x 1
Figure 14-4Figure 14-5
<A>
TAPE 2 Main Belt (D1) x 1
Pinch Roller Pawl
Motor
TAPE 1 Main Belt (E1) x 1
TAPE 1
FF/REW Belt (E2) x 1
CD-BA250H/CD-BA2600H
CD MECHANISM SECTION
Perform steps 1, 2, 3, 10, 11, 12 and 13 of the disassembly method to remove the CD mechanism.
How to remove the loading motor (See Fig. 15-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
2. Remove the drive belt (A2) x 1pc.
How to remove the pickup (See Fig. 15-2)
1. Remove the stop washer (B1) x 1 pc., to remove the gear (B2) x 1 pc.
2. Remove the screws (B3) x 2 pcs., to remove the shaft (B4).
3. Remove the pickup.
Note
After removing the connector for the optical pickup from the connector wrap the conductive aluminium foil around the front end of connector so as to protect the optical pickup from electrostatic damage.
Slide Chassis
(B3) x 2 ø2.6 x 6mm
Loading Motor PWB
(A1) x 2
Figure 15-1
Stop Washer (B1) x 1
Pulley
Drive Belt (A2) x 1
Loading Motor
(A1) x 1
(A1) x 2
Loading Motor
ADJUSTMENT
MECHANISM SECTION
Driving Force Check
Torque Meter Specified Value
Play: TW-2111 Tape 1: Over 80 g
Torque Check
Torque Meter
Play: TW-2111 30 to 80 g.cm 30 to 80 g.cm Fast forward: TW-2231 70 to 180 g.cm Rewind: TW-2231 70 to 180 g.cm
Tape 2: Over 80 g
Specified Value
Tape 1
Tape 2
Pickup
Shaft (B4) x 1
Gear
CD Mechanism
(B2) x 1
Figure 15-2
Tape Speed
Test Tape
Normal MTT-111 Variable 3,000 ± 30 Hz Speaker speed Resistor in Terminal
Adjusting
Point
motor. (Load
Specified
Value
Instrument
Connection
resistance: 6 ohms)
TAPE MECHANISM
– 15 –
Tape Motor
Variable Resistor in motor
Figure 15-3
CD-BA250H/CD-BA2600H TUNER SECTION
fL: Low-range frequency fH: High-range frequency
AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
Test Stage
AM IF 450 kHz 1,620 kHz T351 *1 AM Band 522 kHz (fL): T306 *2
Coverage 1.1 ± 0.1 V AM Tracking 990 kHz 990 kHz (fL): T303 *1
*1. Input: Antenna Output: TP302 *2. Input: Antenna Output: TP301
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
SO302
FM
ANTENNA
FE301
MAIN PWB
CNP302 AM LOOP ANTENNA
• FM Notes:
1: Description of the "FM IF Adjustment" is not carried on this
Manual. It is because the IF coil in the FM front end section has been best adjusted in the factory so that its further adjustment is not needed at the field. When replacing the FM front end assembly, no adjustment is needed either.
2: The parts in the FM front end section are prepared in a
complete unit, so you can't obtain each part individually.
T303
AM TRACKING fL
R336
TP301
AM BAND COVERAGE fL
T306
AM IF
Figure 16-1 ADJUSTMENT POINTS
CD SECTION
• Adjustment
Since this CD system incorporates the following automatic adjustment functions, readjustment is not needed when replacing the pickup. Therefore, different PWBs and pickups can be combined freely. Each time a disc is changed, these adjustments are performed automatically. Therefore, playback of each disc can be performed under optimum conditions.
Items adjusted automatically
(1) Offset adjustment (The offset voltage between the head
amplifier output and the VREF reference voltage is compensated inside the IC.)
* Focus offset adjustment * Tracking offset adjustment
(2) Tracking balance adjustment (waveform drawing
Fig.16-2 EFBL)
(3) Gain adjustment (The gain is compensated inside the IC
so that the loop gain at the gain crossover frequency will be 0 dB.)
* Focus gain adjustment * Tracking gain adjustment
T351
TP302
R357
CD ERROR CODE DESCRIPTION
Error
[Servo System Error] 0001 Cannot detect Pickup-in SW 0002 DSP access error
[Error during close operation] 0101 Open/Close SW not functioning (Low High) 0103 Open/Close SW not functioning (High Low)
[Error during open operation] 0201 Open/Close SW not functioning (Low High) 0203 Open/Close SW not functioning (High Low)
[Error during skip operation] 0302 Pickup-in SW is not detected 0306 During Disc 1 search, Open/Close SW or Clamp SW
or Disc SW do not change to low. 0307 Clamp SW not function (Low High) 0308 Clamp SW not function (High Low)
T
1
3
Stopped
FDO
TE
CH1=500 mV
DC 10:1
T
CH2=200 mV
DC 10:1
State Code
CH3=1 V
DC 10:1
1999/04/05 20:26:47
500 ms/div (500 ms/div)
NORM:20 kS/s
– 16 –
EFBL
2
Smoothing : ON CH1 : 0.000 V BW : FULL
CH2 : 0.000 V CH3 : 0.00 V CH4 : 0.00 V
Figure 16-2
=Record Length=
Main : 100 K Zoom : 2 k
CH2 v/DIV 200 mV
=Trigger==Filter= =Offset= Mode : SINGLE Type : EDGE CH1 Delay : 0.0 ns Hold off : 0.2 µs
TEST MODE
Setting the test mode Any one of test mode can be set by pressing several keys as follows. <X-BASS> + <CD> + <POWER> TEST:CD operation test.
Function:-CD test mode.
-Enter test mode.
C D T E S T
OPEN/CLOSE operation is using manual.
<<
>>, <<
CD-BA250H/CD-BA2600H
IL isn't done.
>> buttons make pick's slide possible.
<<MEMORY>> key input.
Adjustment result automatically will display as below for each 2 sec : a) "FOFF_XX" b) "TOFF_XX" c) "TBAL_XX" d) "TGAN_XX" f) "FGAN_XX" g) "RFLS_XX"
explanation: a) Focus off set. ="FOFF_XX" b) Tracking off set. ="TOFF_XX" c) Tracking balance. ="TBAL_XX" d) Tracking gain. ="TGAN_XX" f) Focus Gain. ="FGAN_XX" g) RF level shift. ="RFLS_XX"
VOL — Last memory. BAL — CENTER P.GEQ — FLAT X-BASS — OFF
To cancel : Power OFF
<<PLAY>> key input.
Do TOC IL. Do normal play. When these following key is input into PLAY key, track number can be appoint directly.
<<
1>> key: Track 4
<<
2>> key: Track 9
<<
3>> key: Track 15
<<STOP>> key input.
XX: Hex value.
STOP
<<MEMORY>> key input.
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that specific point.
<<MEMORY>> key input.
Tracking ON play from that specific point.
Adjustment result auto­matically will display as below. for each 2 sec : a) "FOFF_XX" b) "TOFF_XX" c) "TBAL_XX" d) "TGAN_XX" f) "FGAN_XX" g) "RFLS_XX"
<<STOP>> key input.
STOP
Sliding the PICKUP with
>>, <<
<<
must only be in STOP mode.
>> button
– 17 –
CD-BA250H/CD-BA2600H
Standard Specification of Stereo System Error Message Display Contents
Error Contents DISPLAY Notes Output while Device Protection Operation. 'PROTECT' 00: While in Protect Circuit Operate.
01: Over Current Detection. 02: DC Detection. 03:
TAPE Mechanism Error. 'ER-TA**' 00: Tape Mechanism Error.
01: Initial Error. 02: 03:
CD/VCD Pickup Mechanism Error. 'ER-CD**' 00: Pickup Mechanism Error.
01: PU-IN SW Detection NG. 02: 03: 04:
CD Changer Mechanism Error. 'ER-CD**' 10: Changer Error.
11: Initial Error. 12: 13:
Tray Error. 'ET-CD**' 20: Tray Error.
21: 22:
23: Focus Not Match. 'NO DISC' IL Time Over. 'NOT READ'
TUN PLL Unlock. 'ER-TU**' 00: TUN Error.
01: PLL Unlock.
02:
03:
– 18 –
Loading...
+ 39 hidden pages