Sharp CD-BK260V User manual

– 1 –
CD-BK260V/CD-BK2700V/CD-BK280V
No. S6139CDBK260V
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION..................................................................................................................................................... 2
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR ................................................................................................. 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 7
DISASSEMBLY.................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12
ADJUSTMENT ................................................................................................................................................................. 13
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 18
TYPES OF TRANSISTOR AND LED............................................................................................................................... 18
BLOCK DIAGRAM ........................................................................................................................................................... 19
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD..............................................................................................22
VOLTAGE ........................................................................................................................................................................ 43
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 44
TROUBLESHOOTING..................................................................................................................................................... 45
FUNCTION TABLE OF IC................................................................................................................................................ 49
FL DISPLAY..................................................................................................................................................................... 60
REPLACEMENT PARTS LIST/EXPLODED VIEW
• 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.
SHARP CORPORATION
VIDEO CD MINI SYSTEM
MODEL CD-BK260V
CD-BK260V Video CD Mini System consisting of
CD-BK260V (main unit) and CP-BK260 (speaker system).
VIDEO CD MINI SYSTEM
MODEL CD-BK2700V
CD-BK2700V Video CD Mini System consisting of
CD-BK2700V (mainunit)andCP-BK2700(speakersystem).
VIDEO CD MINI SYSTEM
MODEL CD-BK280V
CD-BK280V Video CD Mini System consisting of
CD-BK280V (main unit), CP-BK280 (front speakers)
and GBOXS0070AWM1 (surround speakers).
Illustration: CD-BK260V/CD-BK2700V
Illustration: CD-BK280V
NTSC/PAL
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CD-BK260V/CD-BK2700V/CD-BK280V
– 2 –
QACCE0010AW00
SAFETY PRECAUTION FOR SERVICE MANUAL
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER
COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS
IMPORTANTTHATTHEFOLLOWINGPRECAUTIONSAREOBSERVEDDURINGSERVICINGTOPROTECTYOUREYES
AGAINST EXPOSURE TO THE LASER BEAM.
1-WHENTHECABINETISREMOVED,THEPOWERISTURNEDONWITHOUTACOMPACTDISCINPOSITIONANDTHE
PICKUP IS ON THE OUTER EDGE 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 UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRESET BEFORE SHIPMENT.
DO NOT ATTEMPT TO READJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICKUP LENS AT ANY TIME.
4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
VOLTAGE SELECTION
Before operating the unit on mains, check the preset voltage. If the voltage is different from your local voltage, adjust the voltage
as follows.
Turnthe selector with a screwdriveruntil theappropriate voltage number appears inthe window(110 V, 127 V, 220V or230 V-240V AC).
AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
QACCA0003AW00 QACCJ0007AW00
QPLGA0003AWZZ QPLGA0004AWZZ
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.
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– 3 –
CD-BK260V/CD-BK2700V/CD-BK280V
General
Amplifier
Video CD
CD player
Tuner
Cassette deck
Power source AC 110/127/220/230 - 240 V, 50/60 Hz
Power consumption 130 W
Dimensions Width: 270 mm (10-11/16")
Height: 330 mm (13")
Depth: 340 mm (13-3/8")
Weight 7.2 kg (15.7 lbs.)
Output power MPO: 240 W (120 W + 120 W) (10 % T.H.D.)
RMS: 150 W (75 W + 75 W) (10 % T.H.D.)
RMS: 104 W (52 W + 52 W) (0.9 % T.H.D.)
Output terminals Speakers: 6 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 kohms
Microphone: 1 mV/600 ohms
Video output format PAL/NTSC
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor 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: 88 - 108 MHz
AM: 531 - 1,602 kHz
Frequency response 50 - 14,000 Hz (Normal tape)
Signal/noise ratio 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter 0.3 % (WRMS)
Type 2-way type speaker system
5 cm (2") Tweeter
13 cm (5-1/4") Woofer
Maximum input power 150 W
Rated input power 75 W
Impedance 6 ohms
Dimensions Width: 220 mm (8-11/16")
Height: 330 mm (13")
Depth: 217 mm (8-9/16")
Weight 3.3 kg (7.3 lbs.)/each
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
CP-BK260/CP-BK2700
CD-BK260V/CD-BK2700V CD-BK280V
CP-BK280
GBOXS0070AWM1
General
Amplifier
Video CD
CD player
Tuner
Cassette deck
Power source AC 110/127/220/230 - 240 V, 50/60 Hz
Power consumption 130 W
Dimensions Width: 270 mm (10-11/16")
Height: 330 mm (13")
Depth: 340 mm (13-3/8")
Weight 7.4 kg (16.1 lbs.)
Output power Front speakers:
MPO: 160 W (80 W + 80 W) (10 % T.H.D.)
RMS: 100 W (50 W + 50 W) (10 % T.H.D.)
RMS: 70 W (35 W + 35 W) (0.9 % T.H.D.)
Surround speakers:
MPO: 80 W (40 W + 40 W) (10 % T.H.D.)
RMS: 50 W (25 W + 25 W) (10 % T.H.D.)
RMS: 34 W (17 W + 17 W) (0.9 % T.H.D.)
Output terminals Front speakers: 8 ohms
Surround speakers: 16 ohms
Headphones: 16 - 50 ohms (recommended: 32 ohms)
Video out: 1 Vp-p (75 ohms)
Input terminals Video/Auxiliary (audio signal): 500 mV/47 kohms
Microphone: 1 mV/600 ohms
Video output format PAL/NTSC
Type 3-disc multi-play compact disc player
Signal readout Non-contact, 3-beam semiconductor 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: 88 - 108 MHz
AM: 531 - 1,602 kHz
Frequency response 50 - 14,000 Hz (Normal tape)
Signal/noise ratio 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/playback)
Wow and flutter 0.3 % (WRMS)
Type 2-way type speaker system
5 cm (2") Tweeter
13 cm (5-1/4") Woofer
Maximum input power 100 W
Rated input power 50 W
Impedance 8 ohms
Dimensions Width: 220 mm (8-11/16")
Height: 330 mm (13")
Depth: 217 mm (8-9/16")
Weight 3.3 kg (7.3 lbs.)/each
Type 10 cm (4") full-range speaker
Maximum input power 50 W
Rated input power 25 W
Impedance 16 ohms
Dimensions Width: 200 mm (7-7/8")
Height: 93 mm (3-11/16")
Depth: 170 mm (6-3/4")
Weight 0.5 kg (1.1 lbs.)/each
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CD-BK260V/CD-BK2700V/CD-BK280V
– 4 –
Front panel
1. Video CD/CD/MP3 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. Video CD/CD/MP3 Disc Tray Open/Close Button
10. Video CD/CD/MP3 Disc Skip Button
11. Tape 2 Reverse Play Button
12. Video CD/CD/MP3 Disc Button
13. Karaoke Mode Button
14. Tuner (Band) Button
15. Video CD Playback Control Button
16. Video CD On Screen Display On/Off Button
17. Video CD Digest Button
18. Tuning and Time Up Button
19. Dimmer Button
20. Clock Button
21. Timer/Sleep Button
22. Headphone Socket
23. Video/Auxiliary Button
24. Tape (1 2) Button
25. Video CD Stop or Return, CD/MP3 Disc/Tape
Stop Button
26. Video CD Play or Repeat or Select or Resume,
CD/MP3 Disc Play or Repeat, Tape 1 Play,
Tape 2 Forward Play Button
27. Tape 2 Reverse Mode Select Button
28. Video CD Skip or Next, CD/MP3 Disc
Track Up or Fast Forward,
Tape 2 Fast Wind, Tuner Preset Up Button
29. Tuning and Time Down Button
30. Memory/Set Button
31. Tape 2 Record Pause Button
32. Video CD Skip or Previous, CD/MP3 Disc
Track Down or Fast Reverse, Tape 2 Fast Wind,
Tuner Preset Down Button
33. Microphone Level Control
34. Microphone Socket
67
1
2
3
89
10
19 26
25
23
24
1412 1311
18
29 30 31 33 3432
27
28
20
21
22
1615 17
4
5
Display
1. Extra Bass Indicator
2. FM Stereo Mode Indicator
3. FM Stereo Receiving Indicator
4. Karaoke Mode Indicator
5. Video CD/CD/MP3 Disc Repeat Play Indicator
6. Video CD/CD/MP3 Disc Pause Indicator
7. Video CD/CD/MP3 Disc Play Indicator
8. Tape 2 Record Indicator
9. Tape Reverse Mode Indicator
10. Video CD/CD/MP3 Disc Number Indicators
11. Timer Play Indicator
12. Memory Indicator
13. Tape 2 Reverse Play Indicator
14. Tape 1 Play or Tape 2 Forward Play Indicator
15. Sleep Indicator
16. Timer Recording Indicator
17. Spectrum Analyser/Volume Level Indicator
17
17 17
1
234 6
8
913 14 15 167
10
11
12
5
NAMES OF PARTS
CD-BK260V/CD-BK2700V/CD-BK280V
CD-BK260V/CD-BK2700V/CD-BK280V
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– 5 –
CD-BK260V/CD-BK2700V/CD-BK280V
Rear panel
1. Video Output Socket
2. FM 75 Ohms Aerial Terminal
3. FM Aerial Earth Terminal
4. AM Loop Aerial Socket
5. Span Selector Switch
6. Video/Auxiliary (Audio Signal) Input Sockets
7. Speaker Terminals
8. AC Power Lead
9. AC Voltage Selector
Speaker system
1. Tweeter
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
34
1
2
3
3
2
6
7
8
5
4
9
1
CD-BK260V/CD-BK2700V
CD-BK280V
CP-BK260/CP-BK2700
1. Surround Speaker Terminals
2. Video Output Socket
3. FM 75 Ohms Aerial Terminal
4. FM Aerial Earth Terminal
5. AM Loop Aerial Socket
6. Span Selector Switch
7. Video/Auxiliary (Audio Signal) Input Sockets
8. Front Speaker Terminals
9. AC Power Lead
10. AC Voltage Selector
3
2
1
6
7
8
9
5
4
10
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CD-BK260V/CD-BK2700V/CD-BK280V
– 6 –
Remote control
1. Remote Control Transmitter
2. Video CD/CD/MP3 Disc Number Select Buttons
3. Echo Level Up and Down Buttons
4. Karaoke Mode Button
5. Video CD Auto/On Button
6. Video CD Playback Control Auto/Off Button
7. Video CD On Screen Display On/Off Button
8. Video CD/CD/MP3 Disc Clear Button
9. Video CD Digest/Time Search Button
10. Video CD Skip or Previous, CD/MP3 Disc Track Down or
Fast Reverse, Tape 2 Fast Wind,
Tuner Preset Down Button
11. Video CD Bookmark Button
12. Tape 2 Reverse Play Button
13. PAL/NTSC Select Button
14. Video CD/CD/MP3 Disc Button
15. Tape (1 2) Button
16. On/Stand-by Button
17. MP3 Disc Display Button
18. Video CD/CD/MP3 Disc Direct Search Buttons
19. Video CD/CD/MP3 Disc Random Button
20. Video CD/CD/MP3 Disc Memory Button
21. Video CD Skip or Next, CD/MP3 Disc Track Up or
Fast Forward, Tape 2 Fast Wind,
Tuner Preset Up Button
22. Video CD/CD/MP3 Disc Pause Button
23. Video CD Play or Repeat or Select or Resume,
CD/MP3 Disc Play or Repeat, Tape 1 Play,
Tape 2 Forward Play Button
24. Video CD Stop or Return, CD/MP3 Disc/Tape
Stop Button
25. Extra Bass Button
26. Equalizer Mode Select Button
27. Volume Up and Down Buttons
28. Tape 2 Record Pause Button
29. Tuner (Band) Button
30. Video/Auxiliary Button
1
2
18
19
20
22
21
23
27
3
7
4
5
6
8
9
11
10
13
12
28
17
16
25
24
26
29
15
30
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.
GBOXS0070AWM1
CP-BK280
CD-BK260V/CD-BK2700V/CD-BK280V
Front speaker
1. Tweeter
2. Woofer
3. Bass Reflex Duct
4. Speaker Wire
Surround speaker (CD-BK280V Only)
1. Full-Range Speaker
2. Speaker Wire
3
4
1
2
3
1
2
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– 7 –
CD-BK260V/CD-BK2700V/CD-BK280V
OPERATION MANUAL
Setting the Clock
In this example, the clock is set for the 24-hour (0:00) display.
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:
1Press the ON/STAND-BY button to turn the power on.
2Press the CLOCK button and within 5 seconds, press the MEMO-.
RY/SET button
3Press the TUNING/TIME ( or ) button to select 24-hour or 12-
hour 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 "Clearing all the memory (reset)".]
4Press 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.
Hold it down to advance continuously.
When the 12-hour display is selected, "AM" will change automatically to "PM".
5Press the TUNING/TIME ( or ) button to adjust the minutes and
then press the MEMORY/SET button.
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.
1 Clear all the programmed contents. [Refer to "Clearing all the memory (reset)".]
2 Perform "Setting the Clock" from the beginning.
Setting the AC voltage selector
Check the setting of the AC voltage selector located on the rear panel before plug-
ging the unit into a wall socket. If necessary, adjust the selector to correspond to the
AC power voltage used in your area.
Turn the selector with a screwdriver until the appropriate voltage num-
ber appears in the window (110 V, 127 V, 220 V or 230 V - 240 V AC).
Connecting the AC power lead
After making all connections, plug the unit. If you plug the unit first,
the unit will enter the demonstration mode.
Note:
Unplug the AC power lead from the wall socket if the unit will not be in use for a pro-
longed period of time.
AC Plug Adaptor
In areas (or countries) where a wall socket as shown in illustration is used, connect
the unit using the AC plug adaptor supplied with the unit, as illustrated. The AC plug
adaptor is not included in areas where the wall socket and AC power plug can be
directly connected (see illustration ).
Setting the FM/AM span selector
The International Telecommunication Union (ITU) has established that member coun-
tries should maintain either a 100 kHz or a 50 kHz interval between broadcasting fre-
quencies of FM stations and 10 kHz or 9 kHz for AM station. The illustration shows
the 50/9 kHz zones (regions 1 and 3), and the 100/10 kHz zone (region 2).
Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to the
interval (span) of your area.
To change the tuning zone:
Caution:
This operation will erase all data stored in memory including clock, timer settings,
tuner preset, and CD pro
g
ramme.
1
2
1 Press the ON/STAND-BY button to enter the stand-by mode.
2 Set the SPAN SELECTOR switch (on the rear panel) as follows.
For 50 kHz FM interval (9 kHz in AM) 50/9
For 100 kHz FM interval (10 kHz in AM) 100/10
3 Whilst pressing down the button and the X-BASS/DEMO button, press the ON/
STAND-BY button until "CLEAR AL" appears.
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CD-BK260V/CD-BK2700V/CD-BK280V
– 8 –
Troubleshooting Chart
Many potential problems can be resolved by the owner without calling a service tech-
nician.
If something is wrong with this product, check the following before calling your autho-
rised SHARP dealer or service centre.
General
Video CD
CD player
Tuner
Cassette deck
Karaoke
Remote control
Symptom Possible cause
The clock is not on time. Did a power failure occur? Reset the
clock.
When a button is pressed, the unit
does not respond. Set this unit to the power stand-by mode and then turn it back on.
Iftheunit still malfunctions, resetit.
No sound is heard. Is the volume level set to "0" ?
Are the headphones connected ?
Are the speaker wires disconnected ?
Isthekaraokemodeset to"L-CH", "R-CH"
or "V-CANCEL" ?
Symptom Possible cause
The picture is not displayed during
playback. Is the TV unplugged ?
Is the unit connected improperly ?
Is the input selector on the TV set to other
than "VCR" ?
Is the unit being played without selecting
video CD ?
The picture quality is poor, or it is
distorted. Is the disc very dirty ?
Symptom Possible cause
Playback does not start. Is the disc loaded upside down ?
Playback stops in the middle or is
not performed properly. Does the disc satisfy the standards ?
Is the disc distorted or scratched ?
Playback sounds are skipped, or
stopped in the middle of a track. Is the unit located near excessive vibra- tions ?
Is the disc very dirty ?
Has condensation formed inside the unit ?
Symptom Possible cause
Radio makes unusual noise con-
secutively. Is the unit placed near the TV or comput- er ?
Is the FM aerial or AM loop aerial placed
properly? Move the AC power lead away
from the aerial if located near.
Symptom Possible cause
Cannot record. Is the erase-prevention tab removed?
Cannot record tracks with proper
sound quality. Is it a normal tape? (You cannot record on a metal or CrO tape.)
Cannot erase completely.
Sound skipping. Is there any slack?
Is the tape stretched?
Cannot hear treble. Are the capstans, pinch rollers, or heads
dirty?
Sound fluctuation.
Cannot remove the tape. If a power failure occurs during playback,
the heads remain engaged with the tape.
Do not open the compartment forcibly.
Wait until electricity resumes.
Symptom Possible cause
The vocal part of a multiplexed
disc is not heard. Isthekaraokemodeset to"L-CH", "R-CH" or "V-CANCEL"?
Symptom Possible cause
The remote control does not oper-
ate. 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?
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 the previous operation, unplug and plug in the unit,
and then turn the power on.
Note:
If neither operation above restores the unit, clear all the memory by resetting it.
Clearing all the memory (reset)
1 Press the ON/STAND-BY button to enter the power stand-by mode.
2 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/VIDEO CD button.
3 Press the OPEN/CLOSE button to open the disc tray.
Remove all discs from the unit.
4 Press the OPEN/CLOSE button to close the disc tray.
Make sure that "NO DISC" is displayed.
5 Pressthe ON/STAND-BY buttonto enterthe stand-bymode, and thenunplug
the AC power lead from the wall 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')
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– 9 –
CD-BK260V/CD-BK2700V/CD-BK280V
1 Top Cabinet 1. Screw ...................... (A1) x4 9-1
2 Side Panel 1. Screw ...................... (B1) x8 9-1
(Left/Right)
3 CD Player Unit/ 1. Turn on the power supply,.. 9-2
CD Tray Cover open the disc tray, take out
the CD tray cover, and close.
(Note 1)
2. Screw ...................... (C1) x1
3. Hook........................ (C2) x3
4. Hook........................ (C3) x2
5. Socket ..................... (C4) x4
4 Rear Panel with 1. Screw .................... (D1) x11 9-2
Video Out PWB/ (For CD-BK260V/CD-BK2700V)
Surround PWB 1. Screw .................... (D1) x14
(CD-BK280V)/ (For CD-BK280V)
Fan Motor 2. Socket ..................... (D2) x1
(For CD-BK260V/CD-BK2700V)
2. Socket ..................... (D2) x2
(For CD-BK280V)
5 Main PWB 1. Screw ...................... (E1) x3 9-2,10-3
2. Socket ..................... (E2) x4 10-3
3. Flat Cable ............... (E3) x1
4. Flat Wire.................. (E4) x1
6 Front Panel 1. Screw .......................(F1) x2 10-3
7 Display PWB 1. Knob........................ (G1) x1 10-4
2. Screw .................... (G2) x12
3. Flat Cable ............... (G3) x1
8 Tape Mechanism 1. Open the cassette holder. .. 10-4
2. Screw...................... (H1) x5
9 Headphones PWB 1. Screw ....................... (J1) x1 10-4
10 Mic PWB 1. Screw ...................... (K1) x2 10-4
2. Tip ........................... (K2) x1
(CD-BK280V Only)
11 Turntable 1. Hook.........................(L1) x2 10-5
2. Cover .......................(L2) x1
12 Disc Tray 1. Turn fully the lock lever in the 10-1
arrow direction .
2. While holding the lock lever,rotate 10-2
the cam gear until the cam gear
rib engages with the clamp lever.
3. Push the slide chassis backward 10-6
to engage the claw with the
groove and remove it in the
direction of the arrow .. (M1) x6
13 CD Video PWB 1. Screw ...................... (N1) x1 11-1
(Note 2) 2. Hook ........................ (N2) x2
3. Socket ..................... (N3) x4
14 CD Mechanism 1. Hook........................ (P1) x2 11-2
2. Hook........................ (P2) x3
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 offnylon bandsor wireholders wherethey needto
beremovedwhendisassemblingtheunit.Afterservicing
theunit, besure torearrange the leads where they were
before disassembling.
4. Take sufficient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 9-2
CD-BK260V/CD-BK2700V/CD-BK280V
STEP REMOVAL PROCEDURE FIGURE
Figure 9-1
CD-BK260V/CD-BK2700V/CD-BK280V
Note 1: How to open the changer manually. (Fig. 10-1)
1. In this state, turn fully the lock lever in the arrow direction through
the hole on the loading chassis bottom.
2. While holding the lock lever, rotate the cam gear anticlockwise until the
cam gear rib engages with the clamp lever. (Fig. 10-2)
3. After that, push forward the slide chassis.
Note 2:
1. After removing the connector for the optical pickup from the
connector,wraptheconductivealuminiumfoilaroundthefrontend
of the connector so as to protect the optical pickup from electro-
static damage.
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.
Illustration: CD-BK280V
(B1)x4
ø3x10mm (B1)x2
ø3x10mm
Rear
Panel
(B1)x2
ø3x10mm
Side Panel
(Right)
Side Panel
(Left)
(A1)x2
ø3x12mm
(A1)x2
ø3x12mm Top Cabinet
Pull
Pull
(C3)x1
(C4)x4
CD Servo
PWB CD Tray Cover
(C2)x3
1
1
2
(C3)x1
CD Player
Unit
(E1)x1
ø3x10mm
Lug Wire
(D1)x2
ø3x10mm
Main PWB
(C1)x1
ø3x10mm
(D1)x9
ø3x10mm
(D1)x3
ø3x10mm
Rear
Panel
(D2)x1
(D2)x1
CD-BK280V
ONLY
CD-BK280V
ONLY
All manuals and user guides at all-guides.com

CD-BK260V/CD-BK2700V/CD-BK280V
– 10 –
Figure 10-1
Figure 10-2
Figure 10-3
Figure 10-4
Figure 10-5
Figure 10-6
Lock Lever
CD Player Unit
(Bottom View)
Clamp Lever
CD Player Unit
(Top View)
Cam Gear Rib
Transformer
PWB
(E3)x1
Power PWB (E2)x1
(E1)x2
ø3x10mm
(E2)x1 (E2)x1
(E2)x1 Headphones
PWB
(E4)x1
Mic PWB
(F1)x2
ø3x8mm
Main PWB
Front Panel
(G3)x1
(G1)x1
(K2)x1
Mic PWB
(K1)x2
ø3x10mm
Open
Cassette
Holder
Lug Wire
Lug Wire
Headphones
PWB
(J1)x1
ø3x10mm
(H1)x5
ø3x10mm
Tape
Mechanism
(G2)x12
ø3x10mm
Display
PWB
CD-BK280V
ONLY
Front
Panel
Turntable
Slide
Chassis
(L2)x1
CD Player Unit
(L1)x2
3
(M1)x3
(M1)x3
1
2
All manuals and user guides at all-guides.com

– 11 –
CD-BK260V/CD-BK2700V/CD-BK280V
1 Front Panel 1. Net.......................... (A1) x1 11-3
2 Woofer 1. Screw ..................... (B1) x4 11-4
3 Tweeter 1. Screw ..................... (C1) x2 11-4
STEP REMOVAL PROCEDURE FIGURE
Figure 11-3
Figure 11-1
CP-BK260/CP-BK2700/CP-BK280
Figure 11-4
(A1)x1
Screwdriver
Driver should
be pried away
from Speaker Box.
Front Panel
Speaker Box
(B1)x4
ø4x12mm
Woofer
(C1)x2
ø3x10mm
Tweeter
Figure 11-2
(N3)x2
(N2)x2
(N3)x2
CD Video
PWB Slide
Chassis
(N1)x1
ø3x8mm
(P2)x3
(P1)x1 (P1)x1
CD
Mechanism
Slide
Chassis
All manuals and user guides at all-guides.com
all-guides.com

CD-BK260V/CD-BK2700V/CD-BK280V
– 12 –
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. 12-1)
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.
How to remove the playback head (TAPE 1)
(See Fig. 12-2)
1. When you remove the screws (B1) x 2 pcs., the playback
head.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 12-3)
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. 12-4)
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. 12-4)
1. Remove the main belt (E1) x 1 pc., from the motor side.
2. Remove the FF/REW belt (E2) x 1 pc.
How to remove the motor (See Fig. 12-5)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 12-1
Figure 12-2
Figure 12-3
Figure 12-4Figure 12-5
(A1) x 2
Ø2 x 6mm
TAPE 2
Record/Playback
Head
Erase Head
Clutch Ass'y
(B1) x 1
Ø2 x 9mm (B1) x 1
Ø2 x 5mm
TAPE 1
Playback
Head
Clutch Ass'y
Pinch Roller
(C1) x 1 <A>
Pull
<B>
Pull
Pinch
Roller
Pawl
TAPE 2 TAPE 1
Main Belt
(E1) x 1
TAPE 2
Main Belt
(D1) x 1
TAPE 1
FF/REW
Belt
(D2) x 1
FF/REW
Belt
(E2) x 1
Motor
Motor
Main Belt
(D1) x 1
Main Belt
(E1) x 1
(F1) x 2
Ø2.6 x 5mm
Motor
Clutch Ass'y
All manuals and user guides at all-guides.com

– 13 –
CD-BK260V/CD-BK2700V/CD-BK280V
How to remove the pickup (See Fig. 13-2)
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) x 1 pc.
3. Remove the pickup.
Note
After removing the connector for the optical pickup from the
connectorwraptheconductivealuminiumfoilaroundthefront
end of connector so as to protect the optical pickup from
electrostatic damage.
Figure 13-2
CD MECHANISM SECTION
Perform steps 1, 2, 3, 11,12, 13 and 14 of the disassembly
method to remove the CD mechanism.
How to remove the loading motor
(See Fig. 13-1)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
2. Remove the drive belt (A2) x 1pc.
Figure 13-1
ADJUSTMENT
MECHANISM SECTION
•Driving Force Check
Torque Meter Specified Value
Play: TW-2111 Tape 1: Over 80 g
Tape 2: Over 80 g
•Torque Check
Torque Meter
Tape 2
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
Specified Value
Tape 1
Specified
Value
Adjusting
Point Instrument
Connection
Test Tape
Normal MTT-111 Variable 3,000 ±30 Hz Speaker
speed Resistor in Terminal
motor. (Load
resistance:
6 ohms)
•Tape Speed
Figure 13-3
(A1)x2
(A1)x1
Loading MotorLoading
Motor PWB
Slide
Chassis
(A1)x2
Pulley
Drive Belt
(A2)x1
Loading
Motor
(B3)x2
ø2.6x6mm
Shaft
(B4)x1
Stop Washer
(B1)x1
Gear
(B2)x1
CD Mechanism
Pickup
TAPE MECHANISM
Tape
Motor
Variable Resistor in motor
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CD-BK260V/CD-BK2700V/CD-BK280V
– 14 – Figure 14-2
CD ERROR CODE DESCRIPTION
Error State Code
[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
T
EFBL
FDO
TE
Stopped
CH1=500 mV
DC 10:1 CH2=200 mV DC 10:1 CH3=1 V DC 10:1 500 ms/div
(500 ms/div)
NORM:20 kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000 V
CH2 : 0.000 V Main : 100K Zoom : 2k Mode : SINGLE Type : EDGE CH1
Delay : 0.0 ns
Hold off : 0.2 µs
CH3 : 0.00 V
CH4 : 0.00 V
BW : FULL
=Trigger==Filter= =Offset=
CH2
v/DIV
200 mV
1999/04/05 20:26:47
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
CD SECTION
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
AM IF 450 kHz 1,602 kHz T351 *1
AM Band — 531 kHz (fL): T306 *2
Coverage 1.1 ±0.1 V
AM Tracking 990 kHz 990 kHz (fL): T303 *1
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker terminal
•FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
FM Band — 87.50 MHz T301(fL): *1
Coverage 1.3 V ±50 mV
FM RF 98.00 MHz 98.00 MHz L312 *2
(10-30 dB)
Test Stage Instrument
Connection
Frequency Frequency
Display Setting/
Adjusting
Point
Figure 14-1 ADJUSTMENT POINTS
Items adjusted automatically
(1)Offset adjustment (Theoffset voltage betweenthe 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.14-2 EFBL)
(3)Gain adjustment (The gainiscompensatedinsidetheIC
sothat theloop gainat the gain crossover frequency will
be 0 dB.)
* Focus gain adjustment
* Tracking gain adjustment
•Adjustment
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacingthe pickup.Therefore,differentPWBsandpickups
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.
IC301
AM IF
FM IF FM RF
T303
T306
T302 L312
AM
TRACKING fL
AM BAND
COVERAGE fL
T301
T351
FM BAND
COVERAGE fL
MAIN PWB
CNP301
AM LOOP
ANTENNA
SO302
FM ANTENNA
TERMINAL
TP302
R357
R316
TP301
All manuals and user guides at all-guides.com

– 15 –
CD-BK260V/CD-BK2700V/CD-BK280V
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
<< >>,<< >>buttonsmakepick'sslidepossible.
Do TOC IL. Do normal play
When these following key is input
into PLAY key, track number can
be appoint directly
<<PLAY>> key input. <<MEMORY>> key input.
<< 1>> key: Track 4
<< 2>> key: Track 9
<< 3>> key: Track 15
<<STOP>> key input.
STOP
Laser ON.
<<MEMORY>> key input.
Tracking OFF play at that
specific point.
<<MEMORY>> key input.
Tracking ON play from
that specific point.
<<STOP>> key input.
STOP
IL isn't done
VOL — Last memory
BAL — CENTER
P.GEQ — FLAT
X-BASS — OFF
To cancel : Power OFF
Sliding the PICKUP with
<< >>, << >> button
must only be in STOP mode.
<<MEMORY>>
key input
Adjustment result
automatically will
display as below
for each 2 sec :
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBA_XXXX"
d) "TGA_XXXX"
f) "FGA_XXXX"
g) "RFL_XXXX"
explanation:
a) Focus off set = "FOF_XXXX"
b) Tracking off set = "TOF_XXXX"
c) Tracking balance = "TBA_XXXX"
d) Tracking gain = "TGA_XXXX"
f) Focus Gain = "FGA_XXXX"
g) RF level shift = "RFL_XXXX"
Adjustment result auto-
matically will display as
below
for each 2 sec :
a) "FOF_XXXX"
b) "TOF_XXXX"
c) "TBA_XXXX"
d) "TGA_XXXX"
f) "FGA_XXXX"
g) "RFL_XXXX"
XX: Hex value
All manuals and user guides at all-guides.com

CD-BK260V/CD-BK2700V/CD-BK280V
– 16 –
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:
CD Changer Mechanism Error 'ER-CD**' 10: Changer Error
11: Initial Error
12:
13:
Tray Error 'ER-CD**' 20: Tray Error
21:
22:
23:
Micon Communication Error 'ER-CD**' 30: System-VCD
31: System-CD Servo
Focus Not Match 'NO DISC'
IL Time Over 'NOT READ'
TUN PLL Unlock 'ER-TU**' 00: TUN Error
01: PLL Unlock
02:
03:
Track 2 Video output terminal Chroma Peak Level
105 ±15 IRE
VIDEO CD SECTION
TEST DISC Model No.TVD-581A (NTSC/PAL)
• Checking of video output signal
Checking of color bar
Disc Adjusting Point Instrument
Connection
Figure 16-1 CHECKING OF VIDEO OUTPUT SIGNAL Figure 16-2
UNIT
Video Output Terminal
Video Input Terminal
TV
Color bar signal
waveform
100 100 88.5 75 70
75
41.5
33.5
50
-13.5 -25 -25
100 IRE
(0.714 V)
(1 V)
(0.286 V)
140 IRE
Horizontal
sync signal
40 IRE
40 IRE
Color Burst
20
-20
-40
Blue
Red
Green
Magenta
Cyan
Yellow
Gray
(59.94 Hz)
IH
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all-guides.com

– 17 –
CD-BK260V/CD-BK2700V/CD-BK280V
Figure 17-1
Set the phase of color Phase check
Track 2 VIDEO OUT burst signal (B) to ±10°
180°-360°line.
Disc Checking Setting Checking
Item
Checking of vector sctor scope waveform
( Check that the setting is within the illustrated range.)
Figure 17-2
Figure 17-3
Figure 17-4
Track 3 VIDEO OUT 150 line. Output level
±10 IRE
Disc Checking Setting Checking
Item
Checking the black-and-white level
Figure 17-5
90 80 70 60
50
40
30
20
10
360
350
340
330
320
310
300
290
280
270
260
250
240
230
220
210
200
190
180
170
160
150
140
130
120 110 100
103.4
167.1
240.8 283.4
347.1
60.8
-1
123 +180
+0
33
MG
R
BL
CY
G
YE
Vector scope waveform of color bar signal
TV monitor
Blue
Red
Green
Magenta
Cyan
Yellow
Gray
IRE
100
80
60
40
20
-20
-40 100%
12.5%
0%
NTSC
Waveform on 140 LINE
(This burst level
is 40 IRE)
140 IRE
TV monitor
TV monitor
Blue
Red
Green
Magenta
Cyan
Yellow
Gray
All manuals and user guides at all-guides.com

CD-BK260V/CD-BK2700V/CD-BK280V
– 18 –
•The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,
indicates AM
indicates FM stereo
2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
( ) indicates the record state.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.
•Parts marked with “ 1” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
NOTES ON SCHEMATIC DIAGRAM
•Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.
•Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
•Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
REF. NO DESCRIPTION POSITION
SW717 VOLUME UP ON—OFF
SW718 VOLUME DOWN ON—OFF
SW719 REVERSE MODE ON—OFF
SW720 CD ON—OFF
SW721 TAPE ON—OFF
SW722 TUNING DOWN ON—OFF
SW723 MEMORY/SET ON—OFF
SW724 FAST REWIND ON—OFF
SW725 FAST FORWARD ON—OFF
SW726 PLAY ON—OFF
SW727 STOP ON—OFF
SW728 REVERSE PLAY ON—OFF
SW729 REC/PAUSE ON—OFF
SW730 TUNING UP ON—OFF
SW731 VIDEO/AUX ON—OFF
SW732 TUNER (BAND) ON—OFF
SW801 VOLTAGE SELECTOR 110 V—127 V—
220 V—230-240 V
SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW601 SPAN SELECTOR 9/50 Hz—10/100 Hz
SW701 ON/STAND-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIMER/SLEEP ON—OFF
SW704 KARAOKE MODE ON—OFF
SW705 P.B.C ON—OFF
SW706 OSD ON—OFF
SW707 DIGEST ON—OFF
SW712 DISC SKIP ON—OFF
SW713 OPEN/CLOSE ON—OFF
SW714 DIMMER ON—OFF
SW715 X-BASS/DEMO ON—OFF
SW716 EQUALIZER ON—OFF
TYPES OF TRANSISTOR AND LED
REF. NO DESCRIPTION POSITION
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
KTA1266 GR
KRC102 M
KRC104 M
KRC102 S
KRC104 S
KTA1271 Y
KTA1274 Y
2SC1845 F
KTA1273 Y
KTC3203 Y
KTC3199 GR
KRA107 M
KRC107 M
KTC3194 Y
SLR342VCJ1
KTA1504 GR
KTC3265 Y
KTC3875 GR
FRONT
VIEW
21
3
TOP
VIEW
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– 19 –
CD-BK260V/CD-BK2700V/CD-BK280V
Figure 19 BLOCK DIAGRAM (1/3)
TO DISPLAY
SECTION TO MAIN
SECTION
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
6
5
4
3
2
1
40
30
31
32
41
47
46
53
76
75
65 66 67 68 69 70 71 72 52 51 73
5
18
36
30 23 11 9 1
2
3
4
7
8
22
21
20
19
18
17
44
49
50
7
14
15
16
3
19
2324252633595735545556
7
8
9
GND
CLAMP SW
CD RES
CLK
DI
DO
CE
DRF
WRG
+10 V
+5 V
CD-GND
L-CH
A_GND
R-CH
CNP12
CNP11
CNP3
M3
T/T UP DOWN
LOADING
M1
SPINDLE
M2
SLED
SW4
PICKUP IN
SW3
DISC No.
SW2
CLAMP
SW1
POEN/CLOSE
~
CONT2
CONT3
CONT4
CONT7
CONT6
CE CL DI DO INT WRQ RES DEF XOUT XIN
RCHO
LCHO
RVSS
LVSS
VDD
VDD
LVDD
RVDD
XVDD
HFL
RFEV
FE
TE
TDO FDO
SPDO
SLDO
CONT5
VVDD
ADAVDD
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
CNP4
M
M
+
+
-
M
-
+
-
Q10
Q9
Q2
A
B
IC2
LC78636E
SERVO/SIGNAL
CONTROL
Q4
Q3
CONSTANT
VOLTAGE +3.3 V
+3.3 V
XL2
16.934MHz
RFEV
LDD
PD
TIN2
TIN1
FIN2
FIN1
FE-
TE-
TE
HFL
FE
IC1
LA9235M
SERVO AMP.
TRACKING COIL
FOCUS COIL
PICKUP UNIT
+5 V
+5 V
LASER
DRIVER
+3.3 V
-5 V
39
38
42
41
25
17
2
118 40 24 23 28
4
5
6
7
15
16
26
27
8142122 ~
9188 ~
45 44 43 41 3247 ~~
8782
79
68
66
65
64
1
2
12
~
~
13
15
21
17
22
24
~
~~ ~
62
55
80
6
99
93
85
81
8
98
92
~
86
8089 7974 71 37 33 23 90 78 73 66 60 59
53
32
16
5
91
77
75
72
63
100
1 25 26 31 41 43 51 56 57 62
50 30
100
~
4
12
~
16
19
~
26
22
~
6
10
~
2
5
~
34
31
~
39
36
~
140
35
21
20
13
81
51
31
1
959493
28
~
~
30
32
23
25
~
2935 ~
A
B
ICM3
17,19,21,22 PIN
ICM4
IX0408AW
EPROM
OE_
CE_
DSO_C ODD
No. ODD
No. EVEN
No. EVEN
No.
ARCLK
AJN
XIN
XOUT
ARFS
ICM3
ES3889F
VCD COMPANION
ICM2
ES3880F
VCD PROCESSOR
LOE#
LROMCE#
LSC1#
AJN ARCLK ARFS
64
CNP1
XL1
27MHz
ICM1
1625635T
DRAM
CAM. M+ SP-
SP+
SL+
SL-
TR-
TR+
FO-
FO+
CAM. M-
CAM. M+
CAM. M-
SPDO
SLDO
FD
TO
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLED DRIVER
QM1
JK702
VIDEO OUT
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CD-BK260V/CD-BK2700V/CD-BK280V
– 20 –
Figure 20 BLOCK DIAGRAM (2/3)
AM LOOP
ANTENNA
SO302
FM ANTENNA
TERMINAL
FM
ANTENNA
CNP301
JK1
MIC
1
2
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
AUX
R
L
R
L
JK690
VIDEO/AUX IN
FM
+B +B4
CLK
+B4
AM IF
OSC BUFF
FM IF
FM
OSC
B.P.F
CNS601 ATT
–20 dB
Q103-
Q104
–B2
+B4
+B3
+B3
IC561,IC56
2
KIA4558P
OPE AMP.
IC562
IC561
Q107
Q108
Q601
Q602
10.7 MHz
450kHz
REC/P
L
CLK
CE
DI
DO DI CE
MO/ST
CONSTANT
VOLTAGE
+B4
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM OUT
L
R
MUTING
P.B.
REC
AC BIAS
LLR
L
R
R
R
L
TAPE
TUNER
CD
PB
CNP11
FROM CD SECTION
HEAD
ERASE
SWITCHING
SWITCHING
SWITCHING
BIAS
Q113
Q114
Q112
Q110
SWITCHING
SOLENOID
DRIVER
MOTOR
DRIVER
TAPE
MECHANISM
ASS'Y
Q109
Q109
OSC
BIAS Q111
L103
Q105
Q106
Q707
Q708
REC/
PALYBACK HEAD
TAPE 2
PLAYBACK
HEAD
TAPE 1
R-CH
L-CH
R-CH
L-CH
IC601
LC75341
AUDIO PROCESSOR
+B4
R
L
REC
R
L
L NF
R NF
ALC
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING
L(T2)
R(T2)
R(T1)
L(T1)
R
L
FM/AM
MPXIN
STEREO
AM RF IN
AM OSC IN
FM
Q360
VT
OSC
X352
4.5 MHZ
AM BAND
COVERAGE
AM TRACKING
T303 T306
Q302
X351
456 kHz
MO/ST
VCO
FM
DET
FM+B
GND
AM IF
CF351
IC303
LA1832S
FM IF DET.
FM MPX./
AM IF MPX.
AM MIX
CF352
T351
RF
FM
OSC
FM
L312 T301
CF303T302
IC301
TA7358AP
FM FRONT END
BF301
21
7
8
41
22
3
4
24
2
1
18 178
3
9
10
18
11
16
3
15
10
9
7
23
14
12
13
1
2
20
19
7
18
10
8
17
13
21
4
5
2
24
23
6
9
16
14
12
15
1
5413
8
4
3
2
1
21
7
98517
6
21
21
20 22 11
17
1615
9
6
57
13
14
12
15
1623
4
7
H/N
P.B
REC
T1/T2
T1/T2
NOR/
HIGH
L
R
ICK1
M65856SP
MIC AMP.
ICK2
KIA4558P
OPE AMP.
LATCH
MIC IN
VRK1
MIC
VOLUME
CLK
DATA
LOUT
ROUT
L IN
R IN
VCC
+B5
+B4
98
7
5
6
2
3
1
12
13
22 23
QK1
32
31
35
36
42
41
40
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