Sharp CD-K7000W User manual

– 1 –
CD-K7000W/C7000W,CP-C7000
No. S3022CDK7000W
CONTENTS Page
SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2
VOLTAGE SELECTION..................................................................................................................................................... 2
SPECIFICATIONS ............................................................................................................................................................. 3
NAMES OF PARTS ........................................................................................................................................................... 4
OPERATION MANUAL ...................................................................................................................................................... 8
DISASSEMBLY.................................................................................................................................................................. 9
REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12
ADJUSTMENT ................................................................................................................................................................. 14
NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16
BLOCK DIAGRAM ........................................................................................................................................................... 17
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 21
VOLTAGE ........................................................................................................................................................................ 40
WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 41
TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 42
FUNCTION TABLE OF IC................................................................................................................................................ 46
FL DISPLAY..................................................................................................................................................................... 54
REPLACEMENT PARTS LIST/EXPLODED VIEW
CD-K7000W
CD-C7000W
CP-C7000
• 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
Illustration: CD-K7000W/CP-C7000
Illustration: CD-C7000W/CP-C7000
DIFFERENCE BETWEEN CD-K7000W AND CD-C7000W
CD-K7000W CD-C7000W
Karaoke
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CD-K7000W/C7000W,CP-C7000
– 2 –
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
PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT
LOOK INTO THE PICK-UP LENS.
2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY
PRE-SET BEFORE SHIPMENT.
DO NOT ATTEMPT TO RE-ADJUST THE LASER PICK-UP UNIT DURING REPLACEMENT OR SERVICING.
3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-UP 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.
VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.
VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.
VOLTAGE SELECTION
The voltage selector is located on the AC voltage selector box. If adjustment is necessary, use a screwdriver in order to turn the
selector in either direction until the correct voltage figure is displayed in the window next to the adjustment screw.
Figure 2 AC POWER SUPPLY CORD AND AC PLUG ADAPTOR
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.
CAUTION
●This Mini Component System is classified as a CLASS
1 LASER product.
●The CLASS 1 LASER PRODUCT label is located on the
rear cover.
●Use of controls, adjustments or performance of proce-
dures other than those specified herein may result in
hazardous radiation exposure.
As the laser beam used in this compact disc player is
harmful to the eyes, do not attempt to disassemble the
cabinet. Refer servicing to qualified personnel only.
Laser Diode Properties
Material: GaAIAs
Wavelength: 780 nm
Emission Duration: continuous
Laser Output: max. 0.6 mW
QACCA0003AW00 QACCB0006AW00
QACCE0010AW00 QACCJ0007AW00
QACCL0005AW00/QACCZ0007SW00 QPLUGA0003AWZZ QPLUGA0004AWZZ
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– 3 –
CD-K7000W/C7000W,CP-C7000
FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER
TO THE OPERATION MANUAL.
General
Power source: AC 110/127/220/230-240 V,
50/60 Hz
Power consumption: 210 W
Dimensions: Width; 270 mm (10-5/8")
Height; 330 mm (13")
Depth; 355 mm (14")
Weight: 11.5 kg (25.3 lbs.)
Amplifier section
Output power: MPO; 830 W (415 W + 415 W)
(10 % T.H.D.)
RMS; 500 W (250 W + 250 W)
(10 % T.H.D.)
RMS; 440 W (220 W + 220 W)
(0.9 % T.H.D.)
Output terminals: Speakers; 6 ohms
Headphones; 16-50 ohms
(recommended; 32 ohms)
CD digital output (optical)
Input terminals: Video/Auxiliary (audio signal);
(CD-K7000W) 500 mV/47 kohms
Microphone 1/2; 1 mV/
600 ohms
Input terminals: Video/Auxiliary (audio signal);
(CD-C7000W) 500 mV/47 kohms
Compact disc player section
Type: 3-disc multi-play compact disc
player
Signal readout: Non-contact, 3-beam semi-
conductor laser pickup
D/A Converter: 1-bit D/A converter
Frequency response: 20 - 20,000 Hz
Dynamic range: 90 dB (1 kHz) Specifications for this model are subject to change without
prior notice.
SPECIFICATIONS
Tuner section
Frequency range: FM; 88 - 108 MHz
AM; 531 - 1,602 kHz
Cassette deck section
Frequency response: 50 - 14,000 Hz (Normal tape)
Signal/noise ratio: 55 dB (TAPE 1, playback)
50 dB (TAPE 2, recording/
playback)
Wow and flutter: 0.3 % (WRMS)
Speaker section
Type: 4-way type [25 cm (10")woofer,
10 cm (4") midrange, 10 cm (4")
tweeter and super tweeter]
Maximum input power
(Total): 500 W
Rated input power
(Total): 250W
Impedance: 6 ohms
Dimensions: (Main speaker)
Width; 330 mm (13")
Height; 330 mm (13")
Depth; 386 mm (15-3/8")
(Sub speaker)
Width; 330 mm (13")
Height; 135 mm (5-5/16")
Depth; 306 mm (12-1/4")
Weight: (Main speaker)
8.8 kg (19.4 lbs.)/each
(Sub speaker)
3.8 kg (8.4 lbs.)/each
CP-C7000
CD-K7000W/C7000W
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CD-K7000W/C7000W,CP-C7000
– 4 –
NAMES OF PARTS
Front panel
1. (CD) Disc Tray
2. Extra Bass Indicator
3. Spectrum Analyzer/Volume Level Indicator
4. (CD) Disc Number Indicators
5. Karaoke Mode Indicator
6. (CD/TUNER) Memory Indicator
7. (CD) Pause Indicator
8. (TAPE 2) Record Indicator
9. (CD) Play Indicator
10. (CD) Music Schedule Indicators
11. (CD) More Tracks Indicator
12. Sleep Indicator
13. FM Stereo Mode Indicator
14. (TAPE) Reverse Mode Indicator
15. (TAPE 2) Reverse Play Indicator
16. (TAPE 1) Play Indicator
(TAPE 2) Forward Play Indicator
17. (CD) Repeat Indicator
18. FM Stereo Indicator
19. Timer Record Indicator
20. Timer Play Indicator
21. Memory/Set Button
22. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
23. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
24. Surround Button
25. Equalizer Mode Selector Button
26. Timer Set Indicator
27. On/Stand-by Button
28. Clock Button
29. Timer/Sleep Button
30. Function Selector Buttons
31. Dimmer Button
32. Volume Control
33. (CD) Disc Number Select Buttons
34. Headphone Socket
35. Tuning and Time Up/Down Buttons
36. (CD) Disc Skip Button
37. (CD) Open/Close Button
38. (TAPE 2) Record Pause Button
39. (TAPE 2) Reverse Play Button
40. (CD/TAPE) Stop Button
41. (TAPE 2) Reverse Mode Button
42. (CD) Play/Repeat Button
(TAPE1) Play Button
(TAPE 2) Forward Play Button
43. Extra Bass/Demo Mode Button
44. Microphone Sockets
45. Microphone Level Controls
46. (TAPE 1) Cassette Compartment
47. (TAPE 2) Cassette Compartment
1
6810 12
2
433
513 7
16 18 1920
11
14 17
9
15
47
46
32
23
26
27
28
29
30
31
33
34 37
38 394041
35 36
21 22 24 25
42 43
44 45
CD-K7000W
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– 5 –
CD-K7000W/C7000W,CP-C7000
Front panel
1. (CD) Disc Tray
2. Extra Bass Indicator
3. Spectrum Analyzer/Volume Level Indicator
4. (CD) Disc Number Indicators
5. (CD/TUNER) Memory Indicator
6. (CD) Pause Indicator
7. (TAPE 2) Record Indicator
8. (CD) Play Indicator
9. (CD) Music Schedule Indicators
10. (CD) More Tracks Indicator
11. Sleep Indicator
12. FM Stereo Mode Indicator
13. (TAPE) Reverse Mode Indicator
14. (TAPE 2) Reverse Play Indicator
15. (TAPE 1) Play Indicator
(TAPE 2) Forward Play Indicator
16. (CD) Repeat Indicator
17. FM Stereo Indicator
18. Timer Record Indicator
19. Timer Play Indicator
20. Memory/Set Button
21. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Rewind Button
22. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Forward Button
23. Surround Button
24. Equalizer Mode Selector Button
25. Timer Set Indicator
26. On/Stand-by Button
27. Clock Button
28. Timer/Sleep Button
29. Function Selector Buttons
30. Dimmer Button
31. Volume Control
32. (CD) Disc Number Select Buttons
33. Headphone Socket
34. Tuning and Time Up/Down Buttons
35. (TAPE 2) Record Pause Button
36. (TAPE 2) Reverse Play Button
37. (CD/TAPE) Stop Button
38. (TAPE 2) Reverse Mode Button
39. (CD) Play/Repeat Button
(TAPE1) Play Button
(TAPE 2) Forward Play Button
40. Extra Bass/Demo Mode Button
41. (CD) Disc Skip Button
42. (CD) Open/Close Button
43. (TAPE 1) Cassette Compartment
44. (TAPE 2) Cassette Compartment
CD-C7000W
1
67911
2
4
512
14 15 17 18 19
10
13 16
8
44
43
31
22
25
26
27
28
29
30
32
33 36 3738 39 40
34 35
20 21 23 24
41 42
33
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CD-K7000W/C7000W,CP-C7000
– 6 –
Main speaker
1. Woofer
2. Bass Reflex Duct
3. Speaker Terminals
4. Speaker Wire for Sub Speaker
Remote Control
1. Remote Control Transmitter LED
2. Karaoke Mode Button
3. Vocal Replacer Button
4. Echo Level Up/Down Buttons
5. (CD) Disc Skip Button
6. (CD) Clear Button
7. (CD) Memory Button
8. (CD) Random Button
9. (TAPE 2) Record Pause Button
10. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
11. (CD) Pause Button
12. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
13. Equalizer Mode Selector Button
14. (TAPE 2) Reserve Play Button
15. (CD/TAPE) Stop Button
16. (CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
17. Function Selector Buttons
18. On/Stand-by Button
19. Extra Bass Button
20. Volume Up/Down Buttons
Rear panel
1. AC Voltage Selector
2. AC Power Lead
3. CD Digital Output Socket
4. FM 75 Ohms Aerial Terminal
5. FM Aerial Earth Terminal
6. AM Loop Aerial Input Socket
7. Span Selector Switch
8. Video/Auxiliary (Audio Signal) Input Sockets
9. Main Speaker Terminals
CP-C7000
Sub speaker
1. Mid Range
2. Super Tweeter
3. Tweeter
4. Speaker Terminals
5. Bass Reflex Duct
6
1
3
4
5
2
7
8
9
1
2
3
4
123 45
1
5
678
910 1112
13 1415 16
17
18
19 20
2
34
CD-K7000W
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– 7 –
CD-K7000W/C7000W,CP-C7000
Remote Control
1. Remote Control Transmitter LED
2. (CD) Disc Skip Button
3. (CD) Clear Button
4. (CD) Memory Button
5. (CD) Random Button
6. (TAPE 2) Record Pause Button
7. (CD) Track Down/Review Button
(TUNER) Preset Down Button
(TAPE 2) Fast Wind Button
8. (CD) Pause Button
9. (CD) Track Up/Cue Button
(TUNER) Preset Up Button
(TAPE 2) Fast Wind Button
10. Equalizer Mode Selector Button
11. (TAPE 2) Reserve Play Button
12. (CD/TAPE) Stop Button
13. (CD) Play/Repeat Button
(TAPE 1) Play Button
(TAPE 2) Forward Play Button
14. Function Selector Buttons
15. On/Stand-by Button
16. Extra Bass Button
17. Volume Up/Down Buttons
CD-C7000W
1
2
345
67
89
10 111213
14
15
16 17
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CD-K7000W/C7000W,CP-C7000
– 8 –
OPERATION MANUAL
PREPARATION FOR USE
AM/FM interval (span)
The International Telecommunication Union (ITU) has established that member countries should maintain either a 10 kHz or a 9 kHz interval between broadcasting frequencies of any AM station. The illustration shows the 9 kHz interval zones (regions 1 and 3), and the 10 kHz interval zone (region 2). Before using the unit, set the SPAN SELECTOR switch (on the rear panel) to AM tuning interval (span) of your area.
To change the tuning zone: 1
Press the ON/STAND-BY button to enter the stand-by mode.
2
Set the SPAN SELECTOR switch to "50/9" for 9 kHz AM interval (50 kHz FM interval), and "100/10" for 10 kHz AM interval (100 kHz FM interval).
3
Whilst pressing down the button and the X-BASS/DEMO button, hold down the ON/STAND-BY button for at least 1 second.
"CLEAR AL" will appear.
Caution:
The operation explained above will erase all data stored in memory including clock and timer settings, and tuner and CD presets.
15
15
Remote control
0.2 m - 6 m (8" - 20')
Notes concerning use:
Replace the batteries if the operating distance is reduced or if the operation becomes erratic. Periodically clean the transmitter LED on the remote control and the sensor on the main unit with a soft cloth. Exposing the sensor on the main unit to strong light may in- terfere with operation. Change the lighting or the direction of the unit. Keep the remote control away from moisture, excessive heat, shock, and vibrations.
RESETTING THE MICROCOMPUTER
Reset the microcomputer under the following conditions:
To erase all of the stored memory contents (clock and timer settings, and tuner and CD presets). If the display is not correct. If the operation is not correct.
1
Press the ON/STAND-BY button to enter the stand-by mode.
2
Whilst pressing down the button and the X-BASS/DEMO button, hold down the ON/STAND-BY button for at least 1 second. "CLEAR AL" will appear.
Caution:
The operation explained above will erase all data stored in memory including clock and timer settings, and tuner and CD presets.
X-BASS/ DEMO
ON/
STAND-BY
SETTING THE CLOCK
In this example, the clock is set for the 24-hour (0:00) system.
ON/ STAND-BY
CLOCK
MEMORY/SET
TUNING/ TIME ( )
1
Press the ON/STAND-BY button to enter the stand-by mode.
2
Press the CLOCK button.
3
Within 5 seconds, press the MEMORY/SET button.
4
Press the TUNING/TIME ( or ) button to select the time display mode.
"0:00" →The 24-hour display will appear.
(0:00 - 23:59) "AM 0:00" →The 12-hour display will appear. (AM 0:00 - PM 11:59) "AM 12:00" →The 12-hour display will appear. (AM 12:00 - PM 11:59)
Note that this can only be set when the unit is first installed or it has been reset.
5
Press the MEMORY/SET button.
6
Press the TUNING/TIME ( or ) button to adjust the hour.
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 auto- matically to "PM".
7
Press the MEMORY/SET button.
8
Press the TUNING/TIME ( or ) button to adjust the minutes.
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 setting will not advance even if minutes advance from "59" to "00".
9
Press the MEMORY/SET button.
The clock starts operating from "0" second. (Seconds are not displayed.) And then the clock display will disappear after a few seconds.
To see the time display: Press the CLOCK button.
The time display will appear for about 5 seconds.
Note:
The clock display will flash on and off at the push of the CLOCK button when the AC power supply is restored after a power failure occurs or after the AC power lead is disconnected. If this happens, follow the procedure below to change the clock time.
To change the clock time:
Press the CLOCK button. Within 5 seconds, press the MEMORY/SET button. Perform steps 6 - 9 above.
To change the time display mode:
Perform steps 1 - 2 in the section "RESETTING THE MICRO- COMPUTER". Perform steps 1 - 9 above.
(Main unit operation)
AM 12:00AM 0:000:00
2
3
4
7
6
5
8 9
1 2 2 1 3
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– 9 –
CD-K7000W/C7000W,CP-C7000
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.Takeoffnylonbandsorwireholderswheretheyneedbe
removed when disassembling the unit. After servicing
theunit,be suretorearrange the leadswhere they were
before disassembling.
4. Take suffcient care on static electricity of integrated
circuits and other circuits when servicing.
Figure 9-2
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 cover, and close.
(Note 1)
2. Screw ..................... (C1) x1
3. Hook....................... (C2) x3
4. Hook....................... (C3) x2
5. Socket .................... (C4) x3
4 Rear Panel 1. Screw ..................... (D1) x7 9-2
(with Digital Output 2. Socket .................... (D2) x1
PWB)
5 Main PWB 1. Screw ..................... (E1) x1 9-2
2. Socket .................... (E2) x4 10-3, 4
(CD-K7000W)
2. Socket .................... (E2) x3
(CD-C7000W)
3. Flat Cable .............. (E3) x1 10-3
4. Tip Wire.................. (E4) x1
6 Power Supply PWB 1. Screw ..................... (F1) x5 10-4
2. Socket .................... (F2) x3
3. Flat Wire................. (F3) x1
4. PWB Holder ........... (F4) x4
7 Front Panel 1. Screw ..................... (G1) x3 10-4
8 Volume Mechanism/ 1. Knob....................... (H1) x1 10-5
Volume Motor 2. Screw ..................... (H2) x4
3. Socket .................... (H3) x1
4. Belt ......................... (H4) x1
5. Screw ..................... (H5) x2
9 Karaoke PWB 1. Screw ..................... (J1) x2 10-5
(CD-K7000W Only)
10 Display PWB 1. Screw ..................... (K1) x11 10-6
2. Flat Cable .............. (K2) x1
11 Tape Mechanism 1. Open the cassette holder. 10-6
2. Screw...................... (L1) x6
12 Headphones PWB 1. Screw ..................... (M1) x1 10-6
13 Turntable 1. Hook....................... (N1) x2 11-1
2. Cover ..................... (N2) x1
14 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 holder backward to 11-2
engage the claw with the groove
and remove it in the direction
of the arrow. .............. (P1) x6
STEP REMOVAL PROCEDURE FIGURE
Figure 9-1
CD-K7000W/C7000W
STEP REMOVAL PROCEDURE FIGURE
15 CD Servo PWB 1. Screw ..................... (Q1) x1 11-3
(Note 2) 2. Hook....................... (Q2) x2
3. Socket .................... (Q3) x4
16 CD Mechanism 1. Hook....................... (R1) x2 11-4
2. Hook....................... (R2) x3
17 Loading Motor PWB 1. Hook....................... (S1) x5 11-4
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 CD slide holder.
Note 2:
1.Afterremovingtheconnector fortheopticalpickupfromthe
connector, wrap the conductive aluminium foil around the
frontendoftheconnectorsoastoprotecttheopticalpickup
from electrostatic damage.
Note 3:
1. Be careful not to break the claw of the CD mechanism.
2.When finingbackthe camgear assembly,letit lockby front
movement.
(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
(E1)x1
ø3x6mm
(C3)x1
(D1)x2
ø3x10mm
CD Player
Unit
CD Tray Cover
Pull
(C3) x1
(C4)x3 (C2) x3
1
1
2
CD Servo
PWB
(C1)x1
ø3x10mm
(D1)x5
ø3x10mm
Power Amp.
PWB
(D2)x1
Rear
Panel
Main PWB
Washer
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CD-K7000W/C7000W,CP-C7000
– 10 –
Figure 10-1
Figure 10-2
Figure 10-3
Figure 10-4
Figure 10-5
Figure 10-6
LOCK LEVER
CLAMP LEVER
CAM GEAR RIB
(E2)x1
(E2)x1
(E3)x1
(E4)x1
(E2)x1
Main PWB
Power
Supply
PWB
Power
Supply
PWB
CD-K7000W
ONLY
(F1)x3
ø3x10mm
(F1)x2
ø3x6mm
(G1)x3
ø3x10mm
(F2)x2
(F2)x1
(E2)x1
(F3)x1
(F4)x4
Push
Power
Supply
PWB
Headphones
PWB
(H2)x4
ø3x12mm
(H5)x2
ø2x5mm (J1)x2
ø3x10mm
(H3)x1
(H1)x1
(H4)x1
Display
PWB
Karaoke
PWB
Volume
Mechanism
Volume
Motor
CD-K7000W
ONLY
(K2)x1
(K1)x11
ø3x10mm
(L1)x6
ø3x10mm
(M1)x1
ø3x10mm
Display PWB
Headphones
PWB
Open
Cassette
Holder
Tape
Mechanism
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– 11 –
CD-K7000W/C7000W,CP-C7000
Figure 11-1
Turntable
Disc Tray
(N2) x1
CD Player Unit
(N1) x2
1
3
2
(P1) x3
(P1) x3
Figure 11-2
(Q3) x2
(Q2) x2
(Q3) x2
CD Servo
PWB CD Player
Base
(Q1)x1
ø3x8mm
Figure 11-3
(R2) x3
(R1) x1
(S1) x5
(R1) x1
Loading
Motor
PWB
CD
Mechanism
CP-C7000
1 Woofer 1. Front Panel ............ (A1) x1 11-5
2. Screw ..................... (A2) x8 11-6
2 Tweeter 1. Front Panel ............ (B1) x1 12-1
2. Screw ..................... (B2) x4 12-2
3 Mid Range 1. Screw .................... (C1) x4 12-2
4 Super Tweeter 1. Screw .................... (D1) x2 12-2
STEP REMOVAL PROCEDURE FIGURE
Figure 11-4
CP-C7000
Figure 11-5 Figure 11-6
Driver should
be pried away
from Speaker Box.
Screw
Driver
(A1) x 1
(A2) x8
ø4x16mm
Woofer
Front
Panel
Caution:
The metallic handles on the both sides of the speaker grill on
the main speaker are decorations.
Do not carry the speakers by them as this may damage the
speakers.
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CD-K7000W/C7000W,CP-C7000
– 12 –
REMOVING AND REINSTALLING THE MAIN PARTS
TAPE MECHANISM SECTION
Perform steps 1 to 7 and 11 of the disassembly method to
remove the tape mechanism.
Figure 12-3
Figure 12-4
Figure 12-1 Figure 12-2
Driver should
be pried away
from Speaker Box.
Screw
Driver
(B1) x 1
Super
Tweeter (D1)x2
ø3x10mm
(B2)x4
ø4x16mm
(C1)x4
ø4x16mm
Tweeter
Front
Panel
Mid
Range
Figure 12-5
Pinch Roller
(C1)x1 <A>
STEP1
STEP2
(A1)x2
Ø2x6mm
TAPE2
Record/Playback
Head
Erase Head
(B1)x1
Ø2x9mm
(B1)x1
Ø2x5mm
TAPE1
Playback
Head
How to remove the record/playback and erase
heads (TAPE 2) (See Fig. 12-3)
1. When you remove the screw (A1) x 2 pcs., the recording/
playback head and three-dimensional head of the erasing
head can be removesd.
How to remove the playback head (TAPE 1)
(See Fig. 12-4)
1. When you remove the screw (B1) x 2 pcs., the playback
head.
How to remove the pinch roller (TAPE 1/2)
(See Fig. 12-5)
1.Carefullypush theinsideclaw toremoveit. Thepinchroller
pawlinthedirectionofthearrow<A>,andremovethepinch
roller (C1) upwards.
Note:
When installing the pinch roller, pay attention to the spring
mounting position.
All manuals and user guides at all-guides.com

– 13 –
CD-K7000W/C7000W,CP-C7000
How to remove the pickup (See Fig. 13-4)
1. Remove the stop washer (B1) x 1 pc., to remove the gear
(B2).
2.Removethe screws (B3)x2 pcs., toremovethe shaft (B4).
3. Remove the pickup.
Figure 13-4
CD MECHANISM SECTION
Perform steps 1, 2, 3, 13 and 16 of the disassembly method
to remove the CD mechanism.
How to remove the loading motor
(See Fig. 13-3)
1. Bend the hooks (A1) x 5 pcs., to remove the loading motor.
Figure 13-3
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.
How to remove the belt (TAPE 1) (See Fig. 13-1)
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 2) (See Fig. 13-1)
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. 13-2)
1. Remove the screws (F1) x 2 pcs., to remove the motor.
Figure 13-1 Figure 13-2
(A1)x2
(A1)x1
Loading Motor
CD Base
(A1)x2
(B3) x2
ø2.6 x6mm
Shaft
(B4) x1
Stop Washer
(B1) x1
Gear
(B2) x1
CD Mechanism
Pickup
TAPE2 TAPE1
Main Belt
(D1)x1
TAPE2
Main Belt
(E1)x1
TAPE1
Main Belt
FF/REW
Belt
(E2)x1
FF/REW
Belt
(D2)x1
Motor
Motor
(F1) x2
Ø2.6x5mm
Motor
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CD-K7000W/C7000W,CP-C7000
– 14 –
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 ±Speaker
speed Resistor in 30 Hz terminal
motor. (Load
(MM1) resistance:
6 ohms)
•Tape Speed
Figure 14-1
TAPE MECHANISM
MM1
Motor
Variable Resistor in motor
• 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-renge 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, 75 kHz dev., FM modulated
FM Band — 88.00 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 Serring/ Adjusting
Point
Figure 14-2 ADJUSTMENT POINT
Test Stage Frequency Frequency
Display Setting/
Adjusting
Parts
Instrument
Connection
IC301
TP302
TP301
R357
AM IF
FM IF FM RF
T303
T306
T302 L312
AM
TRACKING fL
AM BAND
COVERAGE fL
T301
T351
FM BAND
COVERAGE fL
TUNER PWB
CNP301
AM LOOP
ANTENNA
SO302
FM ANTENNA
1
R382
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– 15 –
CD-K7000W/C7000W,CP-C7000
CD SECTION
Figure 15
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)
Since this CD system incorporates the following automatic
adjustment functions, readjustment is not needed when
replacingthepickup.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.
Items adjusted automatically
(1)Offsetadjustment (The offset voltagebetweenthe 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 15
EFBL)
(3)Gainadjustment(ThegainiscompensatedinsidetheIC
sothatthe loop gainat the gaincrossoverfrequency will
be 0dB.)
* Focus gain adjustment
* Tracking gain adjustment
•Adjustment
T
T
EFBL
FDO
TE
Stopped
CH1=500mV
DC 10:1 CH2=200mV DC 10:1 CH3=1V DC 10:1 500ms/div
(500ms/div)
NORM:20kS/s
1
2
3
=Record Length=
Smoothing : ON CH1 : 0.000V
CH2 : 0.000V Main : 100K Zoom : 2k Mode : SINGLE Type : EDGE CH1
Delay : 0.0ns
Hold off : 0.2us
CH3 : 0.00V
CH4 : 0.00V
BW : FULL
=Trigger==Filter= =Offset=
CH2
v/DIV
200mV
1999/04/05 20:26:47
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CD-K7000W/C7000W,CP-C7000
– 16 –
•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 “ ” ( ) 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 micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to
electrolyticcapacitor,theexpression“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 POSITION
SW724 TUNING DOWN ON—OFF
SW725 MEMORY/SET ON—OFF
SW726 TRACK DOWN/REVIEW/ ON—OFF
PRESET DOWN/REWIND
SW727 TRACK UP/CUE/PRESET UP/ ON—OFF
FAST FORWARD
SW728 PLAY ON—OFF
SW729 STOP ON—OFF
SW730 REVERSE PLAY ON—OFF
SW731 REC PAUSE ON—OFF
SW732 TUNING/TIME UP ON—OFF
SW733 VIDEO/AUX ON—OFF
SW734 TUNER (BAND) ON—OFF
SW801 VOLTAGE SELECTOR 230-240—220
—127—110
SWM1 T1 PLAY ON—OFF
SWM2 T2 PLAY ON—OFF
SWM3 F.PLAY ON—OFF
SWM4 R.PLAY ON—OFF
REF. NO DESCRIPTION
SW1 OPEN/CLOSE ON—OFF
SW2 CLAMP ON—OFF
SW3 DISC NUMBER ON—OFF
SW4 PICKUP IN ON—OFF
SW701 ON/STAD-BY ON—OFF
SW702 CLOCK ON—OFF
SW703 TIMER/SLEEP ON—OFF
SW709 DISC 1 ON—OFF
SW710 DISC 2 ON—OFF
SW711 DISC 3 ON—OFF
SW712 DISC SKIP ON—OFF
SW713 OPEN/CLOSE ON—OFF
SW714 DIMMER ON—OFF
SW715 X-BASS/MEMO ON—OFF
SW716 EQUALIZER ON—OFF
SW717 SURROUND ON—OFF
SW718 REV MODE ON—OFF
SW719 CD ON—OFF
SW723 TAPE ON—OFF
Figure 16 TYPES OF TRANSISTOR AND LED
(1) (2) (3)
(S) (G) (D)
E C B
FRONT
VIEW
2SA1015 GR
2SC1845 F
2SC3203 Y
2SK246 GR
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTA1274 Y
KTC2026
KTC3203 Y
KTC3194 Y
KTC3199 GR
KRA107 M
KRC102 M
KRC104 M
KRC107 M
4204SRT7
4204UGT7
4204UYT7
FRONT
VIEW
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– 17 –
CD-K7000W/C7000W,CP-C7000
Figure 17 BLOCK DIAGRAM (1/4)
CNP12
CNP11
Q2
+3.3V
+5V
CONT5
CONT2 CONT3 CONT4 CONT7 CONT6
SLD0
SPD0
FD0
TD0
+5V
TO DISPLAY SECTION
CLAMP SW CDINT
WRQ
CE DO
CLK
DI CD RES GND DRF
CNS4
BI4
CNP4
M2
SLED
MOTOR
M1
SPINDLE
MOTOR
M
M
TRACKING COIL
FOCUS COIL
PICKUP UNIT
TE FE RFEV HFL VVDD ADAVDD VDD LVDD RVDD XVDD
VDD5V
RFEV
FE-
FE
TE-
TE
HFL
+3.3V
Q1
LDD PD
TIN2 TIN1 FIN2 FIN1
IC3
M63001FP
FOCUS/TRACKING/
SPIN/SLIDE DRIVER
IC1
LA9235M
SERVO AMP.
TO MAIN SECTION
(TO IC601)
R-CH DGND +B6(+5V) DIGITAL OUT
L-CH AGND DGND +B5(+5V)
RCHO
RVSS
LVSS
LCHO
IC2
LC78641E
SERVO/SIGNAL
CONTROL
–
+
M
SW1
OPEN/
CLOSE
XL1
16.9344MHz
6
5
43
3
25
4
1
3
21
1234 78
217
89
10
12 4
35
SW2
CLAMP
SW3
DISC
NUMBER
M3
T/T
UP/DOWN
MOTOR
6
12 4
356
12 4
356
7537 76 45 46 47 48 32 31 30
65
66
67
68
69
70
71
72
CE
CL
DI
DO
INT
WRQ
RES
DEF
52
51
XOUT
XIN
73 518 36 44 49 50 7 14 15 16
23
24
25
26
33
3
13
19
40
64
74
17 18 19 20 21 22
30
23
11
9
1
4567 15 16 26 27
2 1725 4142 3839
35
29
22
21
14
8
40
24
23
28
Q3
LASER
DRIVER
CONSTANT
VOLTAGE
+3.3V
+5V
VCC4
18
VCC1
TO
VCC2
VCC3
FD
SLDO
SPO
LD_M–
LD_M+
LOADING
M–
LOADING
M+
FO+
FO–
TR+ TR–
SL– SL+ SP+ SP–
SW4
PICKUP IN
TO DIGITAL
OUTPUT SECTION
CNS99
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CD-K7000W/C7000W,CP-C7000
– 18 –
Figure 18 BLOCK DIAGRAM (2/4)
-B2
+B4
-20dB
ATT
SYSTEM
MUTE
Q605
Q606
Q603
Q604
DO CL DI
CE
MO/ST
+B4
SWITCHING
+B4
+B4
IC860
KIA4558P
OPE AMP.
–B2
FM/AM
IC302
LC72131
PLL(TUNER)
FM/AM
OUT
+B4
IC702
BU2902F
IC703
L
R
BIAS
T1/T2
REC
MUTING
Q121
Q122
AC BIAS
R
L
JK601
VIDEO IN
L
L
R
R
R
L
R
R
L
L
AUX
TAPE
TUNER
CD
P.B
CNS11
FROM CD SECTION
CNP11
ERASE
HEAD
SWITCHING
SWITCHING
SWITCHING
BIAS
Q110
Q111
Q109
Q126
SWITCHING
Q124
L103
BIAS
OSC
Q128
L104
Q107
Q108
REC PB HEAD
TAPE 2
PB HEAD
TAPE 1
L-CH
R-CH
L-CH
R-CH
IC601
LC75341
AUDIO PROCESSOR
IC99
TOTX1784
OPTICAL FIBER
DATA LINK
H/N
P.B
+B4
R
R
L
L
REC
R
L
L NF
R NF
ALC
REC
T1/T2
T1/T2
NOR/
HIGH
REF
R REC
L REC
POP REDUCE
R NF
L NF
SWITCHING
Q103-
Q106
L(T2)
R(T2)
R(T1)
L(T1)
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
R
L
FM/AMMPXIN
STEREO
AM RF IN
AM OSC IN
AM IN FM IN
AM OSC OUT
FM +B FM
VT
FM OSC
OSC
X352
4.5MHZ
AM BAND
COVERAGE
AM
TRACKING
T303 T306
Q302
X351
456kHz
MO/ST
VCO
FM
DET
VCC
GNDAM IF
CF351
IC303
LA1832S
FM IF DET./FM MPX./AM IF
AM MIX
CF352
T351
FM RF
OSC
FM
L312 T301
T302
IC301
TA7358AP
FM FRONT END
BF301
B.P.F
FM
ANTENNA
AM LOOP
ANTENNA
1
6
12
13
9
10
18
11
16
17
3
8
4
15
10
97
7
7
1
8
17 18
4
12
8
4
6
7
21
12
13
1
2
3
20
19
7
18
10
8
17
13
21
4
5
2
3
4
6
9
16
12
15
1
5
13
8
4
3
2
1
1 3
21
7
98
5
17
6
21
2
1
20
22
11
17
16 15
9
6
57
13
14
12
15
16
4
7
FM OSC
CF303
FM IF
Q360
OSC BUFF
4
24 23
14
14
23
24
P.B
REC
CNP601
FROM MIC SECTION
CNSK1
1
2
3
3
2
1
FROM CD SECTION
CNP5
23
14
11
5
~
+B4
AM IF
1
2
CNP301
VDD
+5V
10
11
13
16
8
5
~
+B4
OPE
AMP.
KIA4558P
IC561
IC562
IC563
VCC
Q708 +B3
+B3
M
Q704
Q705
IC701
54PIN
IC701
53PIN
IC701
56PIN
IC701
55PIN
MM1
TAPE
MOTOR
SOLM1,SOLM2
SOLENOID
SWM2
T2 PLAY
SWM1
T1 PLAY
SWM4
R. PLAY
SWM3
F. PLAY
Q862
Q863
MOTOR
DRIVER
Q7
1
Q7
1
CNS99
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– 19 –
CD-K7000W/C7000W,CP-C7000
Figure 19 BLOCK DIAGRAM (3/4)
D801 C801
RY801
VLOAD
+B7
+B3
SYS. STOP
RESET
IC704
KIA7042P
RESET
Q709 Q907
+B6
M901
FAN MOTOR
M
SO901
SPEAKER
TERMINAL
RL901
Q905
+B7 +B7
+B7
+B7
+B7
VDD
VDD
VDD
+B6
LCK
CL
DI
Q803
+B4
-B2
R
R
L
L
Q901
Q902
Q903
Q904
L-OUT
R-OUT
SP. DET.
UNSWITCH 5V
CD+B
+5V
A10V
M10V
+B7
+B5
+B6
+B4
+B3
Q801
Q852
KIA7805P
VOLTAGE
REGULATOR
Q851
KIA7810AP
VOLTAGE
REGULATOR
Q850
CE DI CL DO
XL701
4.1943MHz
IC401
KIA4558P
OPE AMP.
Q802
D802-D805 T802
POWER
TRANSFORMER
D811-D814
D810
D809
IC702
BU2902F
INPUT/OUTPUT
EXPANDER
IC703
BU2902F
INPUT/OUTPUT
EXPANDER
F806
T2A L 250V
F805
T6.3A L 250V
F804
T6.3A L 250V
VL+
VH+
VL-
VH-
IC901
STK402-071
POWER AMP.
AVDD
KEY
SW701-SW703
SW709-SW719
SW723-SW734
TO CD
SECTION
Q701-Q703
Q710-Q712
AC POWER
SUPPLY CORD
F801
T6.3A L 250V
F802
T3.15A L 250V
F803
T3.15A L 250V
IC701
IX0332AW
SYSTEM
MICROCOMPUTER
FL701
DISPLAY
1
32
7
4
6
1
8
2
3
5
151816
85
80
33
31
1
2
3
45
12457
13 9
10
15 16
17
20 21
24 23 24 25
86
91
92
79
78
60
59
39
38
36
34
22
21 15
14
7
2
12
13
8
4
1
12
13
4
2
1
3
27
28
36
2151
20
53 56 57 58
Q402Q401
T.F
CONSTANT
VOLTAGE
REGULATOR
~~
~~~
~
11 12
100
58 57 56 55 54 53 52 51 50 49 48 47 46 44 43 42 41 40
37
35
JK670
HEADPHONES
14
~~~
29
14
17
+B6
18
11
5
~
4
RESET
T801
POWER TRANSFORMER
AC 110/127/220
/230-240V
50/60Hz
10
11
13
16
8
5
5
~
B4
R
L
+B1
VF2
VF1
-VF
CONSTANT
VOLTAGE
-B2
+B2
-B1
DRIVER
JOG701
JOG
RX701
REMOCON
SENSOR
10Hz
IC701
IX0332AW
SYSTEM
MICROCOMPUTER
63Hz
Q864
Q865
LCK
CL
DI
4
2
1
3
17
Q715
Q716 Q713 Q714
M701
VOLUME
MOTOR
M
Q910
Q911
L-CH
R-CH
230-240V
220V
127V
110V
SW801
VOLTAGE
SELECTOR
CNP601
11
10
9
8
FROM MIC SECTION
CNSK1
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CD-K7000W/C7000W,CP-C7000
– 20 –
Figure 20 BLOCK DIAGRAM (4/4)
4
42 41 40
7 8
36 35
9 12
32
31
13
23
1 2 3 4 5 6 7 8 9 10 11
22
ICK1
M65856SP
JK2
MIC2
DATA
MIC1IN
MICLOUT MIC1VOLIN MIC2IN MIC2OUT MIC2VOLIN
CLDCK
LATCH
ROUT
RIN
LIN
VCC
GND
LOUT
QK2
QK1
PINK1
CHASIS
GND JK1
MIC1
BIK1
CNSK1
1 2 3 4 5 6 7 8 9 10 11
OUT(L) OUT(R) IN(L) GND(A) IN(R) GND(D) DATA CLOCK LATCH MIC IN +10V(A)
QK3
VRK2
MIC2
VOLUME
VRK1
MIC1
VOLUME
TO MAIN SECTION
(TO IC601)
CD-K7000W ONLY
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