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
NAMES OF PARTS ........................................................................................................................................................... 4
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
FUNCTION TABLE OF IC................................................................................................................................................ 45
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.
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 nameset value
Withstanding Voltage Tester
Test voltage4,240 VPEAK
3,000 VRMS
Set time6 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
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
27282930
123
4
5
9101112 13
2121
25
26
14
6
7
17
8
181920
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"?
SymptomPossible 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.
SymptomPossible 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.
SymptomPossible 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,
SymptomPossible 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.
SymptomPossible 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
RedBlack
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 PSNO PTY
NO RT
FM 98.80 MHzNO 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.
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 MeterSpecified Value
Play: TW-2111Tape 1: Over 80 g
• Torque Check
Torque Meter
Play: TW-211130 to 80 g.cm30 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-111Variable3,000 ± 30 HzSpeaker
speedResistor inTerminal
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 IF450 kHz1,620 kHzT351*1
AM Band—522 kHz(fL): T306 *2
Coverage1.1 ± 0.1 V
AM Tracking 990 kHz990 kHz(fL): T303 *1
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.)
(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]
0001Cannot detect Pickup-in SW
0002DSP access error
[Error during close operation]
0101Open/Close SW not functioning (Low → High)
0103Open/Close SW not functioning (High → Low)
[Error during open operation]
0201Open/Close SW not functioning (Low → High)
0203Open/Close SW not functioning (High → Low)
[Error during skip operation]
0302Pickup-in SW is not detected
0306During Disc 1 search, Open/Close SW or Clamp SW
or Disc SW do not change to low.
0307Clamp SW not function (Low → High)
0308Clamp 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 ContentsDISPLAY Notes
Output while Device Protection Operation.'PROTECT'00: While in Protect Circuit Operate.