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CX-BK1
SERVICE MANUAL US Model
AEP Model
Ver 1.0 2003.06
UK Model
E Model
· CX-BK1 is the amplifier, CD player, tape deck
and tuner section in BMZ-K1.
· Tape deck is not loaded in US model.
Licensed by BBE Sound, Inc. under USP4638258, 5510752
Model Name Using Similar Mechanism NEW
and 5736897.
CD Mechanism Type CDM69BV-30CBD64NS
CD Section
Base Unit Name BU-30CBD64NS
Optical Pick-up Name A-MAX.3
TAPE Section Model Name Using Similar Mechanism NEW
(Except US model) Tape Transport Mechanism Type CMAL1Z240A
SPECIFICATIONS
TUNER CD PLAYER Power consumption
FM tuning range 87.5 MHz to 108 MHz Laser Semiconductor laser ( = 800 nm) US model: 120 W
FM usable sensitivity (IHF) 13.2 dBf Emission duration: continuous Chilean and Peruvian models:
FM antenna terminal 75 (unbalanced) D/A converter 1 bit dual 155 W
AM tuning range 530 kHz to 1710 kHz (10 kHz step) Signal-to-noise ratio 85 dB (1 kHz, 0 dB) Mexican model: 160 W
531 kHz to 1710 kHz (9 kHz step) Wow and flutter Unmeasurable Power consumption in standby mode
AM usable sensitivity 350 µ V/m US model: with ECO mode on: 0.25 W
AM antenna Loop antenna CASSETTE DECK (Except US model) with ECO mode off: 20 W
Track format 4 tracks, 2 channels stereo Chilean and Mexican models:
AMPLIFIER Frequency response 100 Hz 10000 Hz (± 3dB) with ECO mode on: 0.25 W
Power output Recording system AC bias with ECO mode off: 28 W
US model: 110 W + 110 W (40 Hz - 20 kHz, Heads Recording/playback × 1, erase × 1 Dimensions (w/h/d) Approx. 211 × 379 × 419 mm
THD less than 1%, 6 ) (8 3/8 × 15 ×16 5/8 in.)
140 W + 140 W (40 Hz - 20 kHz, GENERAL Mass
THD 10%, 6 ) Power requirements US model: Approx. 8.6 kg (19 lbs)
Chilean, Peruvian and Mexican models: US model: 120 V, 60 Hz Chilean and Peruvian models:
140 W + 140 W (1 kHz, THD Mexican model: 127 V, 60 Hz Approx. 9.9 kg
less than 1%, 6 ) Chilean and Peruvian models:
180 W + 180 W (1 kHz, THD 120 V/220 230 V/240 V AC Specifications and external appearance are subject to change
10%, 6 ) (switchable), 50/60 Hz without notice.
Total harmonic distortion 0.08 % (90 W, 1 kHz, 6 )
Input LINE IN VIDEO: 1.0 Vp-p (75 )
LINE IN AUDIO: 1.1 V
AUX (MD) IN: 1.1 V
MIC: 2.5mV (Chilean, Peruvian
COMPACT DISC RECEIVER
and Mexican models)
Outputs SPEAKERS: 6 or more
PHONES: 32 or more
AUX (MD) OUT: 500 mV
VIDEO OUT: 1.0 Vp-p (75 ) US model
COMPACT DISC DECK RECEIVER
AEP, UK, Chilean, Peruvian and Mexican models
9-877-426-01 Sony Corporation
2003F05-1 Home Audio Company
C 2003.06 Published by Sony Engineering Corporation
CX-BK1
Notes on chip component replacement SAFETY CHECK-OUT
· Never reuse a disconnected chip component. After correcting the original service problem, perform the follow-
· Notice that the minus side of a tantalum capacitor may be dam- ing safety check before releasing the set to the customer:
aged by heat. Check the antenna terminals, metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC leakage.
Flexible Circuit Board Repairing Check leakage as described below.
· Keep the temperature of the soldering iron around 270 °C dur-
ing repairing. LEAKAGE TEST
· Do not touch the soldering iron on the same conductor of the The AC leakage from any exposed metal part to earth ground and
circuit board (within 3 times). from all exposed metal parts to any exposed metal part having a
· Be careful not to apply force on the conductor when soldering return to chassis, must not exceed 0.5 mA (500 microamperes.).
or unsoldering. Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
CAUTION
instruments.
Use of controls or adjustments or performance of procedures
2. A battery-operated AC milliammeter. The Data Precision 245
other than those specified herein may result in hazardous ra-
digital multimeter is suitable for this job.
diation exposure.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The "limit" indica-
tion is 0.75 V, so analog meters must have an accurate low-
The following caution label is located inside the unit. voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
This appliance is classified operated digital multimeters that have a 2 V AC range are suit-
CLASS 1 LASER PRODUCT
as a CLASS 1 LASER able. (See Fig. A)
LUOKAN 1 LASER LAITE product.
KLASS 1 LASER APPARAT
This label is located on the To Exposed Metal
rear exterior. Parts on Set
AC
0.15 µF 1.5 k voltmeter
(0.75 V)
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size) Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
: LEAD FREE MARK
Unleaded solder has the following characteristics.
· Unleaded solder melts at a temperature about 40 °C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
· Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc-
cur such as on IC pins, etc.
· Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
2
CX-BK1
TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 4 8-12. Printed Wiring Board MAIN Board ........................ 43
8-13. Schematic Diagram MAIN Board (1/4) .................. 44
2. GENERAL 8-14. Schematic Diagram MAIN Board (2/4) .................. 45
Location of Controls ....................................................... 6 8-15. Schematic Diagram MAIN Board (3/4) .................. 46
8-16. Schematic Diagram MAIN Board (4/4) .................. 47
3. DISASSEMBLY 8-17. Printed Wiring Board USB AUX Board .................. 48
3-1. Disassembly Flow ........................................................... 8 8-18. Schematic Diagram USB AUX Board ..................... 49
3-2. Panel ................................................................................ 9 8-19. Printed Wiring Boars MIC Board
3-3. Top Panel Block .............................................................. 9 (Chilean, Peruvian and Mexican models) ................... 50
3-4. Front Panel Assy ............................................................. 10 8-20. Schematic Diagram MIC Board
3-5. MAIN Board ................................................................... 10 (Chilean, Peruvian and Mexican models) ................... 51
3-6. Rear Cover ....................................................................... 11 8-21. Schematic Diagram AMP Board (1/2) .................... 52
3-7. Tuner (FM/AM) .............................................................. 11 8-22. Schematic Diagram AMP Board (2/2) .................... 53
3-8. SPEAKER Board ............................................................ 12 8-23. Printed Wiring Board AMP Board .......................... 54
3-9. ACDC Board, Power Transformer .................................. 12 8-24. Printed Wiring Board HEADPHONE Board .......... 55
3-10. AMP Board ..................................................................... 13 8-25. Schematic Diagram HEADPHONE Board ............. 55
3-11. CD Mechanism Deck (CDM69BV-30CBD64NS) ......... 13 8-26. Printed Wiring Board SPEAKER Board ................. 56
3-12. Signal Cassette Mechanism ............................................ 14 8-27. Schematic Diagram SPEAKER Board .................... 57
3-13. Base Unit Section ............................................................ 14 8-28. Printed Wiring Boards KEY Section ....................... 58
3-14. Base Unit (BU-30CBD64NS) ......................................... 15 8-29. Schematic Diagram KEY Section ........................... 59
3-15. BD Board ......................................................................... 15 8-30. Printed Wiring Boards LCD Section ....................... 60
3-16. SW (1) Board, SW (2) Board, SW (3) Board, 8-31. Schematic Diagram LCD Section ........................... 61
SW (4) Board, Bracket (Top) Assy ................................. 16 8-32. Printed Wiring Board ACDC Board ........................ 62
3-17. CONNECTOR Board ..................................................... 16 8-33. Schematic Diagram ACDC Board ........................... 63
3-18. Motor (Stocker) Assy (Stocker) (M761) ........................ 17 8-34. Printed Wiring Board
3-19. Motor (Roller) Assy (Roller) (M781) ............................. 17 PT Board (US, AEP and UK models) ...................... 64
3-20. Motor (Mode) Assy (Mode) (M771) .............................. 18 8-35. Schematic Diagram
3-21. Rubber Roller (Slider) Assy ........................................... 18 PT Board (US, AEP and UK models) ...................... 65
3-22. Timing Belt (Front/Rear) ................................................ 19 8-36. Printed Wiring Board PT Board
3-23. Cam (Gear) ...................................................................... 19 (Chilean, Peruvian and Mexican models) ................... 66
3-24. SENSOR Board ............................................................... 20 8-37. Schematic Diagram PT Board
(Chilean, Peruvian and Mexican models) ................... 67
4. ASSEMBLY 8-38. IC Pin Function Description ........................................... 73
4-1. How to Install the Cam (Eject Lock) .............................. 21
4-2. How to Install the Cam (Gear) ........................................ 21 9. EXPLODED VIEWS
4-3. How to Install the Gear (Mode C) .................................. 22 9-1. Panel Section ................................................................... 79
4-4. How to Install the Gear (Mode Cam) ............................. 22 9-2. Top Panel Block .............................................................. 80
4-5. How to Install the Rotary Encoder (S702), 9-3. Front Panel Block-1 ........................................................ 81
Gear (Stocker Communication) ...................................... 23 9-4. Front Panel Block-2 ........................................................ 82
4-6. How to Install the Stocker Assy ...................................... 23 9-5. Front Panel Block-3 ........................................................ 83
9-6. Chassis Block-1 ............................................................... 84
5. TEST MODE .............................................................. 24 9-7. Chassis Block-2 ............................................................... 85
9-8. CD Mechanism Deck Section-1
(CDM69BV-30CBD64NS) ............................................. 86
6. MECHANICAL ADJUSTMENTS ....................... 25 9-9. CD Mechanism Deck Section-2
(CDM69BV-30CBD64NS) ............................................. 87
7. ELECTRICAL ADJUSTMENTS 9-10. CD Mechanism Deck Section-3
Deck Section ................................................................... 25 (CDM69BV-30CBD64NS) ............................................. 88
CD Section ...................................................................... 28 9-11. CD Mechanism Deck Section-4
(CDM69BV-30CBD64NS) ............................................. 89
8. DIAGRAMS 9-12. CD Mechanism Deck Section-5
8-1. Block Diagram CD Section ..................................... 31 (CDM69BV-30CBD64NS) ............................................. 90
8-2. Block Diagram TUNER/TAPE/USB Section ......... 32 9-13. CD Mechanism Deck Section-6
8-3. Block Diagram AMP Section .................................. 33 (CDM69BV-30CBD64NS) ............................................. 91
8-4. Block Diagram POWER SUPPLY Section ............. 34 9-14. Optical Pick-up Section (BU-30CBD64NS) .................. 92
8-5. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 35 10. ELECTRICAL PARTS LIST ............................... 93
8-6. Printed Wiring Board BD Board ............................. 36
8-7. Schematic Diagram BD Board ................................ 37
8-8. Printed Wiring Boards CHANGER Section ............ 38
8-9. Schematic Diagram CHANGER Section ................ 39
8-10. Printed Wiring Board
DECK Board (Except US model) ............................ 40
8-11. Schematic Diagram
DECK Board (Except US model) ............................. 41
3
CX-BK1
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP · MODEL IDENTIFICATION
BLOCK OR BASE UNIT Rear Cover
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused PART No.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the "S curve check" in "CD section adjustment" and
check that the S curve waveforms is output three times.
MODEL PART No.
US model 4-245-039-0[]
Chilean and Peruvian models 4-245-039-1[]
AEP and UK models 4-245-039-2[]
Mexican model 4-245-039-3[]
SERVICE POSITION
Tape mechanism deck (except US)
Connect the wire (flat type) (11 core)
to the deck board (CN008) and the main board (CN009).
Connect the wire (flat type) (8 core)
to the main board (CN903) and
the mechanism deck.
4
CX-BK1
CD mechanism deck
· In checking the CD mechanism deck section, prepare three extension jigs (Part No. J-2501-242-A:1.00 mm 11core/
Part No. J-2501-245-A: 1.00 mm 23 core/Part No. J-2501-248-A: 1.00mm 27 core).
Note: The CD mechanism deck of this model is a vertical type and putting it vertically as shown in the figure is the standard position.
When checking signals such as RF waveforms, operate it with the CD mechanism deck in the standard position as shown below.
Connect the extension jig (J-2501-248-A)
to the connector board (CN701) and
the main board (CN901).
Connect the extension jig (J-2501-245-A)
to the BD board (CN102) and
the main board (CN902).
Connect the extension jig (J-2501-242-A)
to the BD board (CN104) and the main board (CN507).
main board, ACDC board
· For connecting the CD mechanism deck, prepare three extension jigs. (Refer to " CD mechanism deck ")
AMP board
speaker board
front panel section
PT board
ACDC board
main board
tuner unit
CD mechanism deck
5
CX-BK1
SECTION 2 This section is extracted from
GENERAL instruction manual.
· LOCATION OF CONTROLS
Main unit: front 6 PLAY MODE (US model) # TITLE
Selects various CD play mode. When the unit is turned off: activates or deactivated
DEMO.
wREC (Except US model)
Changes the display in MP3-CD or USB source.
Starts tape recording.
Also used to enter 4-second blank spaces during DISPLAY
@ recording. Changes the display in CD playback mode.
Turns the back light on and off when the unit is turned
1 7 TUNING DOWNf/r, UPg/t
# off.
2 CD: skips to a previous or a succeeding track when
3 $ MODE
pressed, searches a track in fast forward or reverse
4 % playback when held down. Selects various modes (sound adjustment, etc.) when
5 Tape: rewinds or fast forwards the tape. (Except US used in combination with ENTER and MULTI JOG.
6 ^ Switches the ECO mode on and off when the unit is turned
7 model)
Tuner: manually tunes up or down within the band. off.
8 &
* 8 USB terminal $ aPAUSE/SET
9
( Accepts sound signals from a personal computer. Pauses CD play.
0 Connect your personal computer to this terminal with a
! ) sSTOP/CLEAR
USB cable so that the unit can output the sound of an
Stops CD play.
audio file which is played back by the Winamp3 on your
1 POWER 6STANDBY/ON computer. cPRESET (US model)
Be sure to see "CONNECTING A PERSONAL Starts CD play.
Switches the unit on and off (standby).
COMPUTER" for the details about the computer
2 FUNCTION requirements, how to connect and so on before actually dPRESET (Except US model)
Switches the active function among CD, USB, TAPE connecting your computer. Starts CD or tape play.
(Except US model), TUNER, VIDEO and AUX. % MULTI JOG
9 LINE IN (VIDEO/AUDIO) jacks
3 BAND Accepts analog signals from external equipment. When used in combination with ENTER and MULTI JOG,
Select tuner function and the tuner band. Connect using an optional connecting cable with RCA CD: selects a track.
phono plugs (red plug to R jack, white plug to L jack, Tuner: selects a preset station.
4 GEQ yellow plug to VIDEO jack).
Selects a sound equalization curve. ^ ENTER
Refer also to the operating instructions of your equipment. Fixes the modes and the time (clock and timer, etc.) when
i-Bass To switch function to external input, press FUNCTION used in combination with ENTER and MULTI JOG.
Produces rich and clear low frequency sound. repeatedly to display "VIDEO".
& PHONES jack
5 TREBLE/MIDDLE 0 zEJECT Plug in optional headphones set with a stereo mini plug
Adjusts the treble or middle range level. Ejects the disc(s). (Ø3.5 mm). Speaker output is canceled.
BASS ! DISC SELECT (1-5) * MIC MIXING (Chilean and Peruvian
Adjusts the bass level. Selects a disc slot. models)
Starts CD play for one desired disc. Adjusts the microphone volume.
@ VOLUME ( MIC jack (Chilean and Peruvian models)
Adjusts the volume. Connects the microphone.
) ALBUM/PLAY LIST k,i
Skips to a previous or succeeding album or play list.
Main unit: rear 1 AM LOOP jack and FM 75 terminal
Plug in the supplied AM and FM antennas.
2 AUX IN jacks
Accept analogue sound signals from external equipment.
Connect external equipment using an optional connecting
cable with RCA phono plugs (red plug to R jack, white
plug to L jack). Refer also to the operating instructions
1 for your equipment.
2 To switch function to external input, press FUNCTION
3 repeatedly to display "AUX" (US model) or "MD"
(Chilean, Peruvian and Mexican models).
4
3 AUX OUT jacks
Analog sound signals for all functions can be output
through these jacks. Use a cable with RCA phono plugs
5 to connect audio equipment.
Connect the red plug to the R jack, and the white plug to
6
the L jack.
However, the signal is not output when the function is
"VIDEO" or "AUX" (US model) or "MD" (Chilean,
Peruvian and Mexican models).
4 VIDEO OUT
Signals from VIDEO IN jack output through this jack.
5 #SPEAKERS terminals
Connect the speaker cords of the supplied speakers.
6 AC power cord
6
CX-BK1
Remote commander TUNER MODE 7 SHIFT
Switches between stereo or monaural FM reception. Hold down when pressing a numbered button to change
Refer to the pages indicated in parentheses for details.
its function to that printed above the number.
KARAOKE (Chilean, Peruvian and
Mexican models) 8 FUNCTION
1 8 Selects a Karaoke mode. 9 DISC SKIP
GEQ Changes a disc slot.
2
9 3 c/d 0 ENTER
Starts CD play. ! SLEEP
3
s Selects sleep-timer mode.
4 0 a @ VOLUME +, -
5 !
6 @ f/g
7 r/tPRESET
Tuner: selects a preset station.
M/N ALBUM
Buttons with the same or similar names on the main unit Selects a previous or a succeeding album.
basically have the same function.
4 PLAY MODE
1 POWER
REPEAT
2 1-9, 0/10, +10 Selects repeat CD playback mode.
CD: selects a track of the specified number.
Tuner: tunes in the station with the specified preset 5 CLOCK/TIMER SET
number. Enters clock and timer setting mode.
The numbered buttons take on these functions when CLOCK/TIMER SELECT
pressed with SHIFT held down. Switches timer setting on and off.
EDIT (Chilean, Peruvian and Mexican 6 DISPLAY
models) SOUND
Selects edited CD recording. Selects bass, treble or middle range level setting mode.
BAND CLEAR
SPECTRUM Clears a track of the CD programed playback and a tuner
Changes the spectrum analyser display. preset station.
Setting the clock
1 Press CLOCK/TIMER SET on the remote.
See below when to adjust the clock.
2 Press r or t to set the hour, then press
ENTER.
3 Press r or t to set the minute.
Each press changes the time in 1-minute steps.
4 Press ENTER.
The time display stops flashing and the clock starts from
00 seconds.
·MULTI JOG is also available in place of r or t.
To adjust the clock
1 Press CLOCK/TIMER SET on the remote.
2 Press r or t repeatedly to display "CLOCK" and
then press ENTER.
3 Carry out steps 2 to 4 described in "Setting the clock" to set
the time.
To display the time while the power is on
Press DISPLAY repeatedly. The clock display appears in the
display for 6 seconds.
If "- -:- -" appears when the unit is turned off
There has been a power interruption. Reset the clock.
7
CX-BK1
SECTION 3
DISASSEMBLY
· This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
Note 1: The process described in can be performed in any order.
SET
Note 2: Without completing the process described in , the next process can not be performed.
Note 3: Tape deck is not loaded in US model.
3-2. PANEL
(Page 9)
3-3. TOP PANEL BLOCK
(Page 9)
3-4. FRONT PANEL 3-6. REAR COVER 3-7. TUNER (FM/AM) 3-8. SPEAKER 3-12. SIGNAL
ASSY (Page 11) (Page 11) BOARD CASSETTE
(Page 10) (Page 12) MECHANISM
(Page 14)
3-5. MAIN BOARD
(Page 110)
3-7. TUNER (FM/AM) 3-8. SPEAKER BOARD
(Page 11) (Page 12)
3-9. ACDC BOARD, POWER TRANSFORMER
(Page 12)
3-10. AMP BOARD
(Page 13)
3-11. CD MECHANISM DECK
(CDM69BV-30CBD64NS)
(Page 13)
3-13. BASE UNIT SECTION 3-16. SW (1) BOARD, 3-18. MOTOR (STOCKER) 3-17. CONNECTOR BOARD
(Page 14) SW (2) BOARD, ASSY (STOCKER) (Page 16)
SW (3) BOARD, (M761)
SW (4) BOARD, (Page 17)
BRACKET (TOP) ASSY
(Page 16)
3-14. BASE UNIT
(BU-30CBD64NS) 3-19. MOTOR (ROLLER) 3-21. RUBBER ROLLER 3-20. MOTOR (MODE)
(Page 15) ASSY (ROLLER) (SLIDER) ASSY ASSY (MODE)
(M781) (Page 18) (M771)
(Page 17) (Page 18)
3-15. BD BOARD
(Page 15) 3-22. TIMING BELT 3-23. CAM (GEAR)
(FRONT/REAR) (Page 19)
(Page 19)
3-24. SENSOR BOARD
(Page 20)
8
CX-BK1
Note: Follow the disassembly procedure in the numerical order given.
1 three screws
3-2. PANEL (BVTP3 × 10)
· Tape deck is not loaded in US model.
The shape of the top panel shown in
"DISASSEMBLY" is different from the
actual shape.
6 three screws
(BVTP3 × 10)
3 four claws
4
9
2 four screws
(BVTP3 × 10)
0 right panel
5 panel (left)
8 four claws
7 four screws
(BVTP3 × 10)
3-3. TOP PANEL BLOCK
· Tape deck is not loaded in US model. 3
The shape of the top panel shown 2 three claws
6 top panel block
in "DISASSEMBLY" is different from
the actual shape.
1 three screws
4 wire (flat type) (8core) (BVTP3 × 10)
(CN903)
5 wire (flat type) (11core)
(CN009)
9
CX-BK1
E51, MX
3-4. FRONT PANEL ASSY 3 wire (flat type) (5core)
(CN504)
2 wire (flat type) (17core)
(CN004)
1 wire (flat type) (19core)
(CN905)
9 front panel assy
6 two screws
8 two claws
(BVTP3 × 10)
4 connector (CN530)
5 five screws
(BVTP3 × 10) 7 six screws
(BVTP3 × 10)
3-5. MAIN BOARD
2 wire (flat type)
(11core: US, E51) (CN509)/ 1 wire (flat type) (11core)
(15core: AEP, UK) (CN508) (CN502)
6 wire (flat type) (11core)
(CN507)
5
qs main board 7 connector 3 two screws
(CN007) (BVTP3 × 10)
8 connector
(CN006)
4 screw
(BVTP3 × 10)
qa two screws
(BVTP3 × 6)
0 wire (flat type) (27core)
(CN901)
9 wire (flat type) (23core)
(CN902)
10
CX-BK1
3-6. REAR COVER
1 seven screws
(BVTP3 × 10)
3 connector
(CN303)
4 rear cover
2
3-7. TUNER (FM/AM)
1 two screws
2 tuner (FM/AM) (BVTP3 × 8)
11
CX-BK1
3-8. SPEAKER BOARD
2 two screws
(BVTP3 × 10)
3 speaker board
1 connector
(CN503)
3-9. ACDC BOARD, POWER TRANSFORMER
4 two screws
1 connector (CN003) (BVTP3 × 10)
2 connector (CN006)
6 ACDC board
5 seven screws
(BVTP3 × 10)
3 connector (CN011)
7 connector
(E51, MX: CN015)/
(US: CN011)/
(AEP, UK: CN001)
8 connector
(CN008)
9 two screws E51
(ITC+4-8)
8 connector
0 power transformer (CN010)
EXCEPT E51
12
CX-BK1
3-10. AMP BOARD
4 two screws
(BVTP3 × 10)
3 two screws
(BVTP3 × 10)
5 AMP board
2 CD support board
1 two screws
(BVTP3 × 10)
3-11. CD MECHANISM DECK (CDM69BV-30CBD64NS)
1 four screws
(BVTP3 × 10)
5 disk mecanical holder 4 four screws
(BVTP3 × 10)
2 four screws
6 CD mechanism deck (BVTP3 × 10)
(CDM69BV-30CBD64NS)
3 disk mechanical cover
13
CX-BK1
3-12. SIGNAL CASSETTE MECHANISM
· Tape deck is not loaded in US model.
1 connector
(CN302)
3 signal cassette mechanism
2 four screws
(BVTP3 × 10)
3-13. BASE UNIT SECTION
2 screw (+PTPWH) (M2) (DIA. 7)
3 boss
1 floating screw (DIA. 12)
4 boss
7 base unit section 6 boss
5 boss
14
CX-BK1
3-14. BASE UNIT (BU-30CBD64NS)
qa base unit (BU-30CBD64NS) 4 floating screw
(+PTPWHM2.6 × 6)
1 tension spring (BU30-1)
9 vibration proof rubber
5 floating screw
(+PTPWHM2.6 × 6)
3 floating screw
(+PTPWHM2.6 × 6)
q; vibration proof rubbers
8 vibration proof rubber
2 floating screw
(+PTPWHM2.6 × 6)
6
7 vibration proof rubber
3-15. BD BOARD
4 wire (flat type) (16 core)
2 wire (flat type) (11 core)
3 Remove the solder
(four portions).
5 BD board
1 wire (flat type) (23 core)
15
CX-BK1
3-16. SW (1) BOARD, SW (2) BOARD, SW (3) BOARD, SW (4) BOARD, BRACKET (TOP) ASSY
4 SW (3) board
3 SW (2) board 5 SW (4) board
1 four screws
(BTP2.6 × 6) 6 six screws
(BVTP2.6 × 8)
2 SW (1) board
7 bracket (top) assy
3-17. CONNECTOR BOARD
4 connector 3
(CN710)
bottom view 5 connector
(CN703)
CONNECTOR board
2 four screws
(BVTP2.6 × 8)
6 CONNECTOR board
1 Remove five solders.
16
CX-BK1
3-18. MOTOR (STOCKER) ASSY (STOCKER) (M761)
3 two screws 4
(BVTP2.6 × 8)
2 Remove two solders
5 stocker motor board
6 motor (stocker) assy
(stocker) (M761)
1 belt (stocker)
3-19. MOTOR (ROLLER) ASSY (ROLLER) (M781)
3 two screws
2 Remove two solders.
4 ROLLER MOTOR board
5 motor (roller) assy
(roller)(M781)
1 belt (roller V)
17
CX-BK1
3-20. MOTOR (MODE) ASSY (MODE) (M771)
3 two screws
(BVTP2.6 × 8)
1 Remove five solders
of rotary encoder. 4 MODE MOTOR board
6 motor (mode) assy
MODE MOTOR (mode) (M771)
board
2 Remove two solders
of motor (M771)
5 belt (mode V)
3-21. RUBBER ROLLER (SLIDER) ASSY
8 step screw
5 step screw 1 step screw
9 tension
spring
0 rubber roller
(slider 2)
(slider 4) assy 6 tension spring
(base slider 4)
2 rubber roller
qa rubber roller (slider S) assy
(slider 2) assy
3 tension spring
qs step screw (base slider 5)
7 rubber roller
(slider 1) assy
qd rubber roller 4 rubber roller
(slider 1) assy qf screw
(slider 5) assy
(BVTP2.6 × 8)
qg sub chassis
18
CX-BK1
3-22. TIMING BELT (FRONT/REAR)
3 slider (mode cam) assy
7 two gears (center)
When install three timing belts,
its pass under each claws.
8 timing belt (rear)
timing belt
(rear)
5 two gears 9 timing belt (rear)
(center)
claw
6 timing belt claw
timing belt
(front) (rear)
claw
claw
4 gear
(timing)
timing belt (front)
2 gear (mode cam)
: Note
Note: Refer to assembly (Section 4)
1 screw
(PTPWH2.6 × 8)
3-23. CAM (GEAR)
qf cam (gear)
: Note
6 gear (mode 5)
qd screw
5 screw (PTPWH2.6 × 8)
4 gear (mode 5)
qs gear(mode cam) 3 screw (PTPWH2.6 × 8)
qa screw
(PTPWH2.6 × 8)
2 pulley
(mode deceleration)
0 gear (mode C)
:Note 1 screw(PTPWH2.6 × 8)
Note: Refer to assembly 9 screw 8 gear (mode D)
(Section 4).