HCD-BX7/DX7/DX7J is the tuner, deck, CD and
amplifier section in MHC-BX7/DX7/DX7J.
Photo: HCD-DX7
CD
SECTION
TAPE DECK
SECTION
Model Name Using Similar MechanismNEW
CD Mechanism TypeCDM58-K2BD38
Base Unit TypeBU-K2BD38
Optical Pick-up TypeKSM-213DAP
Model Name Using Similar MechanismNEW
Tape Transport Mechanism TypeTCM-230MWR11
Home Audio Company
Published by Sony Engineering Corporaton
1
Page 2
SAFETY CHECK-OUT
(US model only)
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for A C leakage. Check leakage as
described below.
LEAKAGE
The A C leakag e from any exposed metal part to earth g round and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microampers).
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. Follo w the manufacturers’ instructions to use these
instruments.
2.A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3.Measuring the voltage drop across a resistor by means of a
VOM or battery-operated A C voltmeter . The “limit” indication
is 0.75 V, so analog meters must ha ve an accur ate lo w-v oltage
scale. The Simpson 250 and Sanwa SH-63Trd are e xamples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
To Exposed Metal
Parts on Set
0.15µF
1.5kΩ
Earth Ground
AC
voltmeter
(0.75V)
Fig. A. Using an AC voltmeter to check AC leakage.
2
Page 3
Ver 1.2 2001.08
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
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 on
the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
MODEL IDENTIFICATION
— BACK PANEL —
PARTS No.
TABLE OF CONTENTS
1. SERVICE NOTE ······························································· 4
2. GENERAL ·········································································· 5
This section is extracted from
instruction manual.
Press ENTER.
The minute indication flashes.
3
Press . or > repeatedly to set
4
Press ENTER.
the minute.
5
The clock starts working.
Tip
If you’ve made a mistake, start over from step 1.
To change the time
The previous explanation shows you how to set the
time while the power is off. To change the time
SET CLOCK.
while the power is on, do the following:
1 Press CLOCK/TIMER SET.
2 Press . or > repeatedly to select
3 Press ENTER.
4 Perform steps 2 through 5 above.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
7
ou must set the time before using the timer
ime
Step 2: Setting the
he clock is on a 24-hour system for the
uropean model and a 12-hour system for
he 24-hour system model is used for
ther models.
unctions.
e
E
llustration purposes.
E
e
1
YX x
.>
3,5
x
mM
2,4
NX
Press CLOCK/TIMER SET.
The hour indication flashes.
1
Press . or > repeatedly to set
the hour.
2
Inserting two size AA (R6)
batteries into the remote
Step 1: Hooking up the system
(continued)
To attach the front speaker pads
Attach the supplied front speaker pads to the
bottom of the speakers to stabilize the
speakers and prevent them from slipping.
6
Tip
With normal use, the batteries should last for about
six months. When the remote no longer operates
the system, replace both batteries with new ones.
Note
If you do not use the remote for a long period of
time, remove the batteries to avoid possible damage
from battery leakage.
When carrying this system
Do the following to protect the CD
mechanism.
1 Make sure that all discs are removed from
of 45 degrees from your listening
Positioning the speakers
Before you connect them, determine the best
location for your speakers.
1 Place the front speakers at an angle
the unit.
“LOCK” appears in the display.
2 Hold down CD and then press ?/1 so that
3 Unplug the AC power cord.
Front
speaker
(R)
position.
Front
speaker
(L)
Surround
45º
Surround
speaker
(R)
speaker
(L)
Surround
speaker
60 to 90 cm
each other at about 60 to 90 cm
above your listening position.
2 Place the surround speakers facing
6
Page 7
SECTION 3
DISASSEMBY
Note : Follow the disassembly procedure in the numerical order given.
3-1.UPPER CASE (TOP)
Upper case (Top)
9
Two screws (+BVTP 3
×
10)
6
Screw (Case)
5
Two screws (Case)
Side panel L
7
Two screws
(+BVTP 3
8
×
10)
q;
4
Claw
Side panel R
3
Two screws
(+BVTP 3
×
10)
3-2.LOADING PANEL ASSY
CD mechanism deck (CDM58)
1
Turn the pulley to the direction of arrow.
pulley
Front panel side
2
Pull-out the disc tray.
Loading panel assy
3
1
Two screws (Case)
2
Screw (Case)
7
Page 8
)
3-3.FRONT PANEL SECTION
CD mechanism deck (CDM58)
4
Screw (+BVTP 3
×
7
10)
0
1
Flat type wire (CN304)
5
Screw (+BVTP 3
2
Connector (CN1)
8
Connector (CN201)
Connector
(CN601)
×
10)
6
Three screws (+BVTT 3
3-4.TAPE MECHANISM DECK
×
9
3
Connector (CN2)
Front panel section
6)
4
Bracket (Heart cam L)
3
Screw (+BVTP 2.6
5
Five screws (+BVTP 2.6
Connector (CN202)
×
8)
×
8)
1
Screw (+BVTP 2.6
×
8
2
Bracket (Heart cam R)
6
Tape mechanism deck
8
Page 9
d
)
3-5.PANEL BOARD
2
Two screws
(+BVTP 2.6
×
8)
1
Knob (Volume)
4
5
FR knob
Bracket (FR)
3
Two bosses & four pins
8
Three claws
6
7
Two screws
(+BVTP 2.6
9
CD Switch boar
VCD Switch board
qs
Panel board
qa
Five claws
q;
Cut the eleven melted-connection points with a cutting plier.
Note: When attching the panel board,
refer to "Service Note" on page 4.
×
8)
3-6.SUB-TRANS BOARD AND TRANS BOARD
1
Connector (CN975)
9
Connector (CN975)
qf
Trans board
0
Connector (CN977)
qa
Two screws (+BVTT 4
×
qd
8)
Trans
2
Connector (CN974)
qs
Two screws
(+BVTT 4
×
8
Panel, back
3
Two screws
(+BVTP 3
6
(+BVTP 3
8)
4
Sub-trans
board
7
Connector (CN891)
5
Two screws
(+BVTP 3
×
Six screws
×
10)
8)
×
10
9
Page 10
)
3-7.MAIN BOARD AND AMP BOARD
4
Three screws (+BVTP 3
×
8)
7
Heat sink
6
Two screws (+BVTP 3
×
8)
5Power
3
Two screws (+BVTP 3
AMP board
×
16)
Connector
(CN503)
Connector(CN502)
2
Main board
1
Two screws (+BVTP 3
×
8
3-8.LEAF SW BOARD, HEAD (A) BOARD AND HEAD (B) BOARD
1
Five claws
6
Remove the four solderings.
4
Head (A) board
5
3
Screw (+PS 2.6
×
5)
Head (B) board
2Leaf
SW board
10
6
Screw (+PS 2.6
×
5)
Page 11
3-9.BASE UNIT
5
Two insulators
Base unit
3
4
Two insulators
1
Flat type wire (CN101)
2
Four screws (+PTPWH 2.6)
3-10. DRIVER BOARD, MOTOR BOARD AND ADDRESS SENSOR BOARD
9
q;
Tray
3
Connector (CN701)
Screw (+PTPWH 2.6
qa
Screw (+BVTP 2.6
2
Driver board
6
Motor board
×
×
8)
8)
4
Three screws (+BVTP 2.6
7
Flat type wire (CN721)
5
Remove the two solderings of motor.
8
Connector(CN722)
qs
Address Sensor board
×
8)
1
Screw (+BVTP 2.6
×
8)
11
Page 12
SECTION 4
TEST MODE
[MC Cold Reset]
• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returning
the set to the customer.
Procedure:
1. Press three buttons x , ENTER , and ?/1 simulta-neously.
2. The fluorescent indicator tube displays “COLD RESET” and
the set is reset.
[CD Ship Mode]
• This mode moves the pickup to the position durable to vibration. Use this mode when returning the set to the customer after
repair.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Press CD button and ?/1 button simultaneously.
3. After the "STANDBY" display blinks six times, a message
“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.
[MC Hot Reset]
• This mode resets the set with the preset data kept stored in the
memory. The hot reset mode functions same as if the power
cord is plugged in and out.
Procedure:
1. Press three buttons x , ENTER , and DISC 1 simultaneously .
2. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[CD Service Mode]
• This mode can run the CD sled motor freely . Use this mode, for
instance, when cleaning the pickup.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “CD”.
3. Press three buttons x , ENTER , and OPEN/CLOSE simul-
taneously.
4. The CD service mode is selected.
5. With the CD in stop status, turn the shuttle knob clockwise to
move the pickup to outside track, or turn the shuttle knob
counter-clockwise to inside track.
6. To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Press three buttons in the same manner as step 2.
Note: • Always move the pickup to most inside track when exiting from
this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively , otherwise the gear can be
chipped.
[Change-over of MW Tuner Step between 9 kHz and
10 kHz]
• A step of MW channels can be changed over between 9 kHz
and 10 kHz.
Procedure:
1. Press ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press TUNER/BAND
button to select the BAND “MW”.
3. Press ?/1 button to turn the set OFF.
4. Press ENTER and ?/1 buttons simultaneously, and the display
of fluorescent indicator tube changes to “MW 9 k STEP” or
“MW 10 k STEP”, and thus the channel step is changed over.
[GC Test Mode]
• This mode is used to check the software version, FL tube, LED,
keyboard and VACS.
Procedure:
1. Press three buttons x , ENTER , and DISC2 simultaneously .
2. LEDs and fluorescent indicator tube are all turned on.
3. When you want to enter the software version display mode,
press DISC 1 . The model number and destination are displayed.
4. Each time DISC 1 is pressed, the display changes starting
from MC version, GC version, VC version, CD version, CM
version, ST version, TC version, TA version, TM version and
BR version in this order, and returns to the model number and
destination display.
5. When DISC 3 is pressed while the version numbers are being
displayed except model number and destination, year, month
and day of the software creation appear. When DISC 3 is
pressed again, the display returns to the software version display .
When DISC 1 is pressed while year, month and day of the
software creation are being displayed, the year, month and day
of creation of the software versions are displayed in the same
order of version display.
6. Press DISC 2 button, and the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
“KEY0 VOL0”. Each time a button is pressed, “KEY” value
increases. However, once a button is pressed, it is no longer
taken into account.
“VOL” value increases like 1, 2, 3 ... if rotating VOLUME
knob in “+” direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.
8. Also when DISC 3 is pressed after lighting of all LEDs and FL
tubes, value of VACS appears.
9. T o e xit from this mode, press three b uttons in the same manner
as step 1, or disconnect the power cord.
[VACS ON/OFF Mode]
• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:
Press the ENTER and SPECTRUM buttons simultaneously. The
message “VACS OFF” or “VACS ON” appears.
12
Page 13
[MC Test Mode]
• This mode is used to check operations of the respective sections
of Amplifier, Tuner, CD and Tape.
Procedure:
1.Press the ?/1 button to turn on the set.
2. Press the three buttons of x , ENTER and DISC 3
simultaneously.
3.A message “TEST MODE” appears on the FL display tube.
4 When f (CURSOR UP) button is pressed, GEQ increases to
its maximum and a message “GEQ ALL MA” appears.
5.When F (CURSOR DOWN) button is pressed, GEQ decreases
to its minimum and a message “GEQ ALL M1” appears.
6.When g (CURSOR LEFT) or G (CURSOR RIGHT) button
is pressed, GEQ is set to flat and a message “GEQ FLAT”
appears.
7.When the VOLUME control knob is turned clockwise even
slightly, the sound volume increases to its maximum and a
message “VOLUME MAX” appears for two seconds, then the
display returns to the original display.
8.When the V OLUME control knob is turned counter-clockwise
even slightly, the sound volume decreases to its minimum and
a message “VOLUME MIN” appears for two seconds, then
the display returns to the original display.
9.In the test mode, the default-preset channel is called even when
the TUNER is selected and an attempt is made to call the preset
channel that has been stored in memory, by oper ating the Shuttle
knob. (It means that the memory is cleared.)
10. When CD is selected and the EDIT button is pressed, the disc
that is being chucked at this moment becomes the default
setting. It means that the default disc only is accessed when
any other discs are selected even though the display indication
changes accordingly. At the same time, the DISC SKIP EXCHANGE and OPEN/CLOSE cannot be accepted. (It means
that the tray motor and the turntable motor are disabled of their
operation.)
11. When a tape is inserted in Deck B and recording is started, the
input source function selects VIDEO automatically.
12. When x button is pressed to stop recording, the Tape (Deck)
B is selected and tape is rewound using the Shuttle knob, tape
is rewound, tape is stops at around the record-starting position
and playback of the recorded portion of the tape is started. If
P A USE is inserted even once during recording, ta pe is rewound
to the position around the P AUSE position and is played back.
13. When the CD SYNC HI-DUB Button is press during playback
of Deck B, either normal speed or high speed can be selected
by this button.
14. Select the desired loop by pressing the PLAY MODE b utton.
Insert a test tape AMS-110A or AMS-RO to Deck A.
15. Press the SPECTRUM button to enter the AMS test mode.
16. After a tape is rewound first, the FF AMS is checked, and the
mechanism is shut off after detecting the AMS signal twice.
17. Then the REW AMS is checked and the mechanism is shut off
after detecting the AMS signal twice.
18. When the check is complete, a message of either OK or NG
appears.
19. When you want to exit this mode, press the ?/1 button twice.
The cold reset is enforced at the same time.
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Page 14
[Aging Mode]
This mode can be used for operation check of CD section and tape deck section.
• If an error occurred:
The aging operation stops and display status.
• If no error occurs:
The aging operation continues repeatedly.
1. Operating method of Aging Mode
Turn on the main power and select “CD” of the function.
1) Set a disc in DISC1 tray. Select ALL DISC CONTINUE, and REPEAT OFF.
2) Load the tapes recording use into the decks A and B respectively.
3) Press three buttons x , ENTER , and
DISC SKIP/EX-CHANGE simultaneously.
4) Aging operations of CD and tape are started at the same time.
5) To exit the aging mode, perform [MC Cold Reset].
3. Aging Mode in CD section
1) Display state
• No error occurs
Display
AGING[*][*][*][*]
Note:
[*][*][*][*]
Error display
E ** s ## $$ %%
12 34 5
1 **
2 s
3 ##
4 $$
5 %%
: Number of aging operations
The error No. 00 indicates the newest error. As the error No. increases, it means the older error.
When you want to retrieve the error history, press the PLAY MODE button in the case of mechanism error.
Or press the REPEAT button in the case of NO DISC error.
M: Mechanism error
Don’t care
High order digits only
D: Stopped during closing due to problems other than mechanism.
E: Stopped during opening due to problems other than mechanism.
C: Stopped during chucking due to problems other than mechanism.
F: Stopped during EX-opening due to problems other than mechanism.
Emergency related errors (High order digits only)
1: Stopped during chuck-up
2: Stopped during chuck-down
3: Time out by EX-OPEN
5: Time out by EX-CLOSE
D: No disc error
01: FOCUS ERROR
02: GFS ERROR
03: SETUP ERROR
01: NO DISC judgment without chucking retry
02: NO DISC judgment after chucking retry
Status at the time of NO DISC judgment
(High order digits only)
1: STOP
2: SETUP
3: TOC READ
4: ACCESS
5: PLAY BACK
6: PAUSE
7: MANUAL SEARCH (PLAY)
8: MANUAL SEARCH (PAUSE)
• When the buttons x , ENTER and DISC 1 are pressed simultaneously, number of time of the mechanism error and the NO DISC error
can be checked.
Display: EMC**EDC****:Number of times of error (Maximum three times)
EMC: Mechanism error
EDC: NO DISC error
• When aging operation is complete, be sure to perform the MC Cold Reset to reset the error history.
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Page 15
2) Operation during aging mode
In the aging mode, the program is executed in the following
sequence.
(1) The disc tray opens and closes.
(2) The mechanism accesses DISC 2 and makes an attempt to
read TOC. However, since there are no discs, a message
“CD2 NO DISC” appears.
(3) The mechanism accesses DISC 3 and a message “CD3 NO
DISC” appears.
(4) The disc tray turns to select a disc1.
(5) A disc is chucked.
(6) TOC of disc is read.
(7) The pickup accesses to the track 1, and playing 2 seconds.
(8) The pickup accesses to the last track, and playing 2 seconds.
(9) Every time when an aging operation of step 1 to step 8 is
complete, the display “ AGING[*][*][*][*]” v alue increases
as the number of aging operations is counted up.
(10) Returns to step 1.
3. Aging Mode in Tape Deck section
1) Display state
• No error occurs
Display action now
• Error occurred
Display action last time
NO. Display actionAction contentsFinal timing
1TAPE A AG-1 Rewind the TAPE A, B The top of tape
2TAPE A AG-2 FWD play the TAPE A 2 minutes playing
3TAPE A AG-3 F.F. the TAPE A20 second FF or the end
4TAPE A AG-4 REV play the TAPE A2 minutes playing
5TAPE A AG-5 Rewind the TAPE AThe top of tape
6TAPE B AG-2 FWD play the TAPE B 2 minutes playing
7TAPE B AG-3 F.F . the TAPE B20 second FF or the end
8TAPE B AG-4 REV play the TAPE B2 minutes playing
9TAPE B AG-5 Rewind the TAPE BThe top of tape
of tape
of tape
2) Operation during aging mode
In the aging mode, the program is executed in the following
sequence.
(1) Rewind is executed up to the top of tape A and B.
(2) A tape on FWD side is played for 2 minutes.
(3) FF is executed up to either made for 20 second or the end of
tape.
(4) A tape is reversed, and the tape on REV side is played for 2
minutes.
(5) Rewind is executed up to the top of tape.
(6) Returns to step 2, and repeat steps from 2 to 5.
[Function Change Mode]
* elect either VIDEO or MD of the external FUNCTION input.
Procedure:
1.Turn on the power.
2.Press the two buttons ENTER and ?/1 at the same time.
The main power is turned on and the other function of the
previous function is selected and displayed. “MD” or
“VIDEO”.
15
Page 16
SECTION 5
r
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
2. Demagnetize the record/playback head with a head
demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
Mode
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
3.06 N • m to 6.96 N • m
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
0.19 N • m to 0.58 N • m
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
6.96 N • m to 14.02 N • m
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
9.80 N • m
100 g or more
(3.53 oz or more)
9.80 N • m
100 g or more
(3.53 oz or more)
DECK SECTION
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjust.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit
adjustment.)
6. The adjustments should be performed for both L-CH and RCH.
7. Switches and controls should be set as follows unless otherwise
specified.
• T est Tape
TapeSignalUsed for
P-4-A10010 kHz, –10 dBAzimuth Adjustment
WS-48B3 kHz, 0 dBTape Speed Adjustment
P-4-L300315 Hz, 0 dBLevel Adjustment
Record/Playback Head Azimuth Adjustment
0 dB=0.775 V
DECK A DECK B
Note: Perform this adjustments for both decks
Procedure:
1. Mode: Playback
test tape
P-4-A100
(10 kHz, –10 dB)
main board
CN301
Pin 3 (L-CH)
Pin 1 (R-CH)
set
main board
CN301
Pin 2 (GND)
level mete
+
–
16
Page 17
2. Turn the adjustment scre w and check output peaks. If the peaks
e
r
+
–
set
test tape
P-4-L300
(315 Hz, 0 dB)
main board
CN301 (Pin 3 : L-CH)
(Pin 1 : R-CH)
level meter
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
Output
level
within
1dB
L-CH
peak
R-CH
peak
within
1dB
Screw
position
L-CH
peak
Screw
position
R-CH
peak
Tape Speed Adjustment
Note: Start the Tape Speed adjustment as below after setting to the test
mode.
In the test mode, the tape speed is high during pressing the
DECK B
CD SYNC HI-DUB button.
Procedure:
1. Turn the power switch on.
2. Press the x button, ENTER button and DISC 3 button
simultaneously.
(The “TEST MODE” on the fluorescent indicator tube display
while in the test mode.)
To exit from the test mode, press the ?/1 button.
Mode: Playback
test tape
WS-48B
(3 kHz, 0 dB)
frequency counte
3. Mode: Playback
test tape
P-4-A100
(10 kHz, –10 dB)
L-CH
MAIN
board
CN301
set
R-CH
waveform of oscilloscope
in phase 45°90° 135° 180°
pin 3
pin 2
L
R
pin 1
good
oscilloscop
V
wrong
H
4. After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location: Playback Head (Deck A).
Record/Playback/Erase Head (Deck B).
set
main board
CN301 (Pin 3 : L-CH)
(Pin 1 : R-CH)
+
–
1. Insert the WS-48B into the deck B.
2. Press the gG button on the deck B.
3. Press the CD SYNC HI-DUB button in playback mode.
Then at HIGH speed mode.
4. Adjust RV1001 on the LEAF SW board do that frequency
counter reads 6,000 ± 30 Hz.
5. Press the CD SYNC HI-DUB button.
Then back to NORMAL speed mode.
6. Adjust RV1002 on the LEAF SW board so that frequency
counter reads 3,000 ± 15 Hz.
Adjustment Location: LEAF SW board
Playback level Adjustment
DECK A DECK B
Procedure:
Mode: Playback
forward
reverse
Deck A is RV302 (L-CH) and RV352 (R-CH), Deck B is RV303
(L-CH) and RV353 (R-CH) so that adjustment within adjustment
level as follows.
Adjustment Level:
CN301 PB level: 301.5 to 338.3 mV (–8.2 to –7.2 dB) level
difference between the channels: within ±0.5 dB
Adjustment Location: MAIN board
Sample Volue of Wow and Flutter: 0.3% or less W. RMS
(WS-48B)
17
Page 18
REC Bias Adjustment DECK B
e
r
r
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment,
when the tape is rewound after recording, the “REC memory mode”
which rewinds only the recorded portion and playback is set.
This “REC memory mode” is convenient for performing this
adjustment. During recording, the input signal FUNCTION will
automatically switch to VIDEO.
(If do not operation of stopped from recording complete, and rotette
of shuttle knob then rewind to recording start position.)
4. Mode: Record
MD/VIDEO (AUDIO) IN
AF OSC
315 Hz, 50 mV (–23.8 dB)
attenuator
5. Mode: Playback
600 Ω
blank tape
CS-123
set
1. Press MD/VIDEO button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Insert a tape into deck B.
3. After press REC PAUSE/START button, press REC PAUSE/
START button, then recording start.
4. Mode: Record
MD/VIDEO (AUDIO) IN
1) 315 Hz
2) 10 kHz
AF OSC
attenuator
50 mV (–23.8 dB)
600 Ω
blank tap
CN-123
set
5. Mode: Playback
recorded
portion
set
CN301 (Pin 3 : L-CH)
(Pin 1 : R-CH)
level mete
+
–
recorded
portion
set
level mete
+
–
CN301 (Pin 3 : L-CH)
(Pin 1 : R-CH)
6. Confirm playback the signal recorded in step 3 become
adjustable level as follows.
If these levels do not adjustable level, adjustment the RV301
(L-CH) and R V351 (R-CH) on the MAIN board to repeat steps
4 and 5.
Adjustable level:
CN301 PB level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location: MAIN board
[MAIN BOARD] (Component Side)
T601
RV611
REC LEVEL (L)
(B)
PB LEVEL (L)
(A)
6. Confirm playback the signal recorded in step 3 become
adjustable level as follows.
If these levels do not adjustable level, adjustment the RV304
(L-CH) and RV354 (R-CH) on the A UDIO board to repeat steps
4 and 5.
Adjustable level: Playback output of 315 Hz to playback output
of 10 kHz: ±1.0 dB
Adjustment Location: MAIN board
REC Level Adjustment
DECK B
Procedure:
INTRODUCTION
When set to the test mode performed in Tape Speed Adjustment,
when the tape is rewound after recording, the “REC memory mode”
which rewinds only the recorded portion and playback is set.
This “REC memory mode” is convenient for performing this
adjustment. During recording, the input signal FUNCTION will
automatically switch to VIDEO.
(If do not operation of stopped from recording complete, and rotate
of shuttle knob then rewind to recording start position.)
1. Press MD/VIDEO button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)
2. Insert a tape into deck B.
3. After press REC PAUSE/START button, press REC PAUSE/
START button, then recording start.
PB LEVEL (R)
(A)
PB LEVEL (R)
(B)
REC LEVEL (R)
(B)
REC LEVEL (L)
(A)
CN301
RV351
PB LEVEL (L)
REC LEVEL (R)
[LEAF SW BOARD] (Component Side)
TAPE SPEED
(NORMAL) (HIGH)
RV1002
RV1001
13
RV303
(B)
(A)
CN1001
RV302
RV352
RV353
CN304
RV301
CN302
CN303
RV304
RV354
18
Page 19
FM Tuned Level Adjustment
FM RF SSG
75 Ω coaxial
Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 28 dB (at 75 W open)
set
FM ANTENNA terminal
(TM601)
CD SECTION
Note :
1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.
S-Curve Check
Procedure:
1.Supply a 28 dB 98 MHz signal from the ANTENN A terminal.
2.Tune the set to 98 MHz.
3.Adjust RV611 to the point (moment) when the TUNED
indicator will change from going off to going on.
Adjustment Location: MAIN board
Null Adjustment
FM RF SSG
75 Ω coaxial
set
Carrier frequency : 98 MHz
Modulation : AUDIO 1 kHz, 75 kHz
deviation (100%)
Output level : 60 dB (at 75 W open)
FM ANTENNA terminal
(TM601)
Procedure:
1.Supply a 60 dB 98 MHz signal from the ANTENN A terminal.
2.Tune the set to 98 MHz.
3.Measure voltage between pin 21 of IC 601. Adjust T601 ubtil
the voltage becomes 0 V.
Oscilloscope
BD board
TP(FEO)
TP(VC)
Procedure :
1. Connect oscilloscope to TP (FEO).
2. Connect between TP (FEI) and TP (VC) by lead wire.
3. Connect between TP (AGCCON) and TP (GND) by lead wire.
4. Turn Power switch on.
5. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focus
search)
6. Confirm that the oscilloscope waveform (S-curve) is
symmetrical between A and B. And confirm peak to peak lev el
within 4 ±1 Vp-p.
S-curve waveform
symmetry
A
within 4 ±1Vp-p
B
Adjustment Location: MAIN board
Adjustment Location
[MAIN BOARD] Component side
NULL
T601
RV611
FM TUNED LEVEL
CN301
RV351
7. After check, remove the lead wire connected in step 2 and 3.
Note : • Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
RF Level Check
oscilloscope
BD board
TP(RF)
TP(VC)
Procedure :
CN304
13
RV301
RV303
RV302
RV352
RV353
CN302
CN303
RV304
RV354
1. Connect oscilloscope to TP (RF).
2. Connect between TP (AGCCON) and TP (GND) by lead wire.
3. Turned Power switch on.
4. Load a disc (YEDS-18) and playback.
5. Confirm that oscilloscope waveform is clear and check RF signal
level is correct or not.
6. After check, remove the lead wire connected in step 2.
19
Page 20
MEMO
20
Page 21
SECTION 7
DIAGRAMS
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
f
•
• C : panel designation.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages and waveforms are dc with respect to ground
• Voltages are taken with a VOM (Input impedance 10 MΩ).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Abbreviation
: internal component.
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part
number specified.
under no-signal (detuned) conditions.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
F: FM
f: AM
E: PB (DECK A)
d: PB (DECK B)
G : REC (DECK B)
J: CD
c : digital out
CND : Canadian model
AUS : Australian model
G: German model
EA: Saudi Arabia model
MY: Malaysia model
SP: Singapore model
TH: Thai model
KR: Korea model
MX: Mexican model
AR: Argentina model
E2: Central and South AMERICA
E3: Middle and Near East
4
W or less unless otherwise
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.
Note on Printed Wiring Boards:
• X : parts extracted from the component side.
• b : Pattern from the side which enables seeing.
• Indication of transistor.
C
These are omitted.
Q
B
CE
These are omitted.
Q
B
HCD-BX7/DX7/DX7J
7-1. CIRCUIT BOARD LOCATION
MOTOR Board
SENSOR Board
TRANS Board
E
CD SWITCH Board
PANEL Board
LEAF SW Board
HEAD (A) Board
HEAD (B) Board
• WA VEFORMS
– BD BOARD –– MAIN BOARD –
1
IC101 yj
CD PLAY MODE
16.9344MHz
2
IC101 ta
CD PLAY MODE
3
CD PLAY MODE
6.4Vp-p
4
CD PLAY MODE
IC101 ra
approx 200mVp-p
IC101 el
DRIVER Board
SUB-TRANS Board
1
IC401 qa
STOP MODE
32.768kHz
2
IC401 qd
STOP MODE
BD Board
MAIN Board
POWER AMP Board
3
TAPE B REC MODE
3.0Vp-p
T301 4
80.7kHz
120Vp-p
400nsec/div
– PANEL BOARD –
1
IC601 oa
STOP MODE
12.5MHz
2121
1.2Vp-p
4.8Vp-p
approx 170mVp-p
16MHz
3.4Vp-p
Page 22
HCD-BX7/DX7/DX7J
7-2. BLOCK DIAGRAMS
– TUNER/CD SECTION –
FM 75Ω
AM
G
TM601
DX7,DX7J MODEL
FE601
1
8
AEP,UK,G,CIS MODEL
1
1
3
IF OUT
ANT IN
OSC OUT
US,CND MODEL
FE602
IF OUT
ANT IN
FE603
ANT IN
13
RB641
F OUT
1
FM IF
9
IF OUT
12
AM/IF
24
AM OSC
13
VCO STOP
8
IF REQ MUTE
20
AM RF IN
22
AM OSC
23
V REG
AM/FM IF MPX
IC601
AM MIX OUT
FM SD ADJ
FM/AM DET
TUNED
STEREO
L OUT
R OUT
11
10
18AM IF IN
19
3
16
6
17
BUFFER
Q611
R-CH
IFT601
RV611
IC681
31
XT681
4.332MHz
Q602
Q602
RF IF
AMP
10
1
24
15
18
17
19
FM
XIN
XOUT
FM OSC
VT1 IN
VT1
PD1
PLL
IC651
FM/AM IF
AM OSC
12
FM
7
14
2VCO STOP
8IF REQ
DO
6DO
DI
DI
4DI
CL
CE
CL
5
CE
3
7
8
VT
5
1
3
VT
4
7IF OUT
8OSC OUT
5VT
4
55
122
JR609
14
1511
67
US,CND
MODEL
EXCEPT
US,CND
R601
9
CF601CF602
+BA+12V
R609
X651
4.5MHz
LPF601
LPF
4
14
13
MUX
XO
XI
AEP,UK,G,CIS
MODEL
RDS
IC682
DATA
INT
L-CH
A
MAIN
SECTION
• RCH is omitted
• Signal Path
: FM
(Page 23)
: CD
: DIGITAL OUT
MASTER CONTROL
IC401(1/2)
2
16
21
RDS DATA
20
RDS INT
24
TUNED
23
STEREO
22
ST MUTE
DO
27
26
28
25
ST DIN
ST DOUT
ST CLK
ST CE
DI
CL
CE
OPTICAL PICK-UP
BLOCK
(KSS-213F)
VC
A
B
C
D
E
F
LD
GND
PD
VR
F+
FOCUS
09
COIL
TRACKING
COIL
F-
T+
T-
+5V
DRIVE
M102
SLED
MOTOR
M101
SPINDLE
MOTOR
Q101
LD
DIGITAL SERVO
DIGITAL SIGNAL PROC.
RF AMP
IC103
12
VC
5
A
6
B
7
C
8
D
11
E
10
F
3
LD
4
PD
IC102
MOTOR/COIL DRIVE
13
CH1RO
14
CH1FO
11
CH2RO
12
CH2FO
18
CH3RO
RFO
RFI
FE
TE
CH1RI
CH1FI
CH2RI
CH2FI
CH3RI
16
17
14
13
22LD ON
21HOLD SW
3
2
6
5
23
D/A CONV.
IC101
D OUT
60
51
RFAC
43
RFDC
L OUT
R OUT
SCLK
SCOR
SQSO
SSTP
XTAI
XTAO
72
75
20
27
66
67
R-CH
5DATA
7CLOK
6XLAT
2SQCK
9
1
X101
16.9344MHz
39
FE
41
TE
40
SE
14
XLON
32
FFDR
33
FRDR
30
TFDR
31
TRDR
29
SRDR
S101
LIMIT
IN SW
IC201
OPTICAL
DIGITAL
OUT
CD
DIITAL OUT
L OUT
B
MAIN
SECTION
(Page 23)
33
CD DATA
37
CD CLK
42
XLT
33
SQ CLK
19
SCOR
32
SQ DATA
BU UP/DOWN SW
MTR CNT2
T SENS
IC701
44
45MTR CNT1
49
46OPEN SW
47CLOSE SW
48
9
MOTOR
DRIVE
7
TBL ADDRESS
4
2
IC711
SENSOR
OPEN/CLOSE
S701
S711
BU UP/
DOWN
M721
M
TURN
MOTOR
M
17
16
CH3FO
CH4RO
24CH3FI
25CH4INS
28
SFDR
26
MDP
3XRST
43
XRST
M
15
CH4FO
MUTE
20
41
HOLD
22
22
Page 23
– MAIN SECTION –
TUNER
SECTION
(Page 22)
CD
SECTION
(Page 22)
MD/VIDEO
(AUDIO)
REC/PB
HEAD
HEAD
ERASE
HEAD
09
R
PB
L
DECK-A
DECK-B
TC BLOCK
CAP M H/L
A
B
J101
A120/70
B120/70
A HALF
B HALF
A PLAY
B PLAY
A SHUT
B SHUT
A TRG M+
B TRG M+
CAP M+
L-CH
LOUT
L-CH
R-CH
R-CH
R-CH
R-CH
PB EQ
AMP
IC303
PB EQ
AMP
IC304
RV304
REC
BIAS
Q393,394
A TRIG
DRIVE
Q391,392
B TRIG
DRIVE
Q395
CAP MOTOR
SPEED CONT
Q396,397
CAP MOTOR
DRIVE
• RCH is omitted
• Signal Path
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: FM
: CD
T301
C332,L301
BIAS
TRAP
RV302
RV303
1
2
3
BIAS
OSC
Q302,303
57
58
59
60
REC/PB SWITCH
IC302
Q301
+6V
A TRIG
B TRIG
CAP M H/L
CAP M CONT
R CH
TA+12V
Q141
BIAS
91
DC
B SHUT90A SHUT
4
69
B PLAY68A PLAY
Q304,305
A+12V
93
SWITCH
B HALF67A HALF
79
TC RELAY
HCD-BX7/DX7/DX7J
J102
SURROUND
SPEAKER
TM801
L
R
FAN
DISPLAY CONTROL
IC601
PLAY1-3
EXIST1-3
GROOVE LED
FILE LED
BASS SHIFT LED
FUNCTION LED
TIMER LED
F974
F975
F1
F2
IC971
+5.6V
1
REG
SPEAKER
P1
P35
G1
G17
XIN
XOUT
T971
D972-975
Q971
RELAY
DRIVE
J631
PHONS
F1F2
50
.
52
85
Q606-614
49
LED
DRIVER
33
Q630-635
10
LED
DRIVER
5
11
12
Q621-626
13
LED
14
DRIVER
15REC/PAUSE LED
16SURROUND LED
Q604
LED
28POWER LED
DRIVER
Q605
LED
27
DRIVER
89
X601
12.5MHz
90
EA,SP,MY,
EA,SP,MY,E2,E3,AR
E2,E3,AR
MODEL
F973
BX7 MODEL
T972
RY971
FL601
FLOURESCENT
INDICATOR TUBE
D611-615
D617,618
EXCEPT
MODEL
JW901
S951
D630-632
D601
POWER
D602
TIMER
SELECT
EA,SP,MY,E2,E3,AR
MODEL
AC
IN
DX7,DX7J
MODEL
AC
IN
17
12
11
-B
+B
-B
EVER +5.6V
R CH
R CH
R CH
US,CND,DX7,DX7J ONLY
Q891,892
FAN
DRIVE
3
HEADPHONE
20
BPF 0
25
BPF 5
ALL BAND
26
17
KEY0
18
KEY1
19
KEY2
VOL A
1
VOL B
2
SIRCS
100
I2C DATA
97
I2CCLOCK
98
WAKE UP
96
RESET
92
Q941
-V
REG
D541
D901-904
D906-909
3
INPUT SELECT
TONE/VOL CONT
IC101
40
VOL OUT2
IN2A
38
IN2C
37
IN2D
DECK PROC.
IC301
48
A
B
46
REC
36
EQ
NORM
33
BIAS
CROM
SW
32
REC
DOLBY
39
A120/70
17
19
B
DOL
PAS
PB A/B
NORM/HIGH
ALC ON/OFF
B NORM/CROM/METAL
15
16
18
77
76
78
ALC
PB A/B
EQ H/N
MASTER CONTROL
70
PB
120
38
RV301
REC(L)
LEVEL
RM ON/OFF
BIAS ON/OFF
20
22
75
74
BIAS
IC401(2/2)
NR ON/OFF
23
24
73
72
REC MUTE
NR ON/OFF
REC
43
PB
LM ON/OFF
MS OUT
REC /PB/PASS
25
26
71
70
AMS IN
TC MUTE
R/PB PAS
35
INVOL OUT2
40
39
IN2B
21
DATA
22
CLOCK
R-CH
X401
32.768kHz
4
5
10
CLK
DATA
XC IN
11
XC OUT
15
REF
X402
16MHz
X IN
24
Q101,102
1
Q503
SWITCH
13
X OUT
DBFB
CONT
DBFB
83
DBFB ON/OFF
IC102
5
6
84
7
Q504,505
MUTE
CONT
LINE MUTE
MUTE
Q103
100
STK MUTE
Q503,504
MUTE
CONT
87
82
RELAY H
PROTECT
D822
MUTE
Q581
15
POWER
30
29
IIC DATA
STBY RELAY
81
IC501
AMP
12
18
IIC CLK
11
D841
DX7,DX7J MODEL
EA,DX7J MODEL
7
WAKE UP
CD POWER
RESET
12
J721
MIC 1
J722
MIC 2
AC CUT
Q501
85
Q861
MUTE
MUTE
Q862
CONT
Q551
OVER LOAD
DETECTOR
Q506,506+B
OVER HEAT
DETECTOR
DX7,DX7J MODEL
IC501
RESET
Q821,822
PROTECT
DETECTOR
D502
RV722
MIC
VOL
IC722IC722
2
CD D+5V
CD A+5V
RDS D+5V UNSW
AUDIO +5V
A+12V
TC A+12V
MIC A+12V
ST A+12V
TC M+9V
CD M+7V
LED +7V
IC721
ECHO
LEVEL
6
D952
D953
PROTECT
3
Q823
CONT
Q828,829
PROTECT
SWITCH
+7V
RV721
ECHO
LEVEL
IC911Q911,912
+5V
CD POWER
1
REG
SWITCH
3
D511
3
3
3
IC951
IC921
+12V
REG
IC961
REG
IC931
REG
+5V
REG
+9V
+7V
Q615
+5.6V
REG
Q824,825
RELAY
DRIVE
1
1
1
1
RY801
IC602
10
SPEANA
BPF
6
5
4
3
S617,618
S623-628,630-636
FUCTION
KEY
S611-616
S619-621,626,629
FUCTION
KEY
S637-646
FUCTION
KEY
S601
VOLUME
SIRCS
IC603
POWER
AMP
2323
Page 24
HCD-BX7/DX7/DX7J
7-3. PRINTED WIRING BOARD – BD SECTION –
• See page 21 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.Location
IC101D-2
IC102C-4
IC103B-3
Q101A-4
A
B
C
12
3456
D
E
F
09
(Page 26)
24
24
Page 25
7-4. SCHEMATIC DIAGRAM – BD SECTION –
• See page 21 for Wavefoms.
• See page 46 for IC Block Diagrams.
HCD-BX7/DX7/DX7J
(Page 29)
09
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
2525
Page 26
HCD-BX7/DX7/DX7J
7-5. PRINTED WIRING BOARD – MAIN SECTION – • See page 21 for Circuit Boards Location.
WAKE UP signal output for master controller. (PULL UP)
O
WAKE UP signal output for master controller. (PULL UP)
O
IIC SDA
O
IIC SDA
O
IIC SCL
O
IIC SCL
I
Not used.
I
Not used.
I
Remote commander input. (input capture)
I
Remote commander input. (input capture)
Description
Description
45
Page 46
7-20.IC BLOCK DIAGRAMS
IC101 CXD2587Q (BD BOARD)
LRCK
PCMD
BCK
EMPH
XVDD
XTAI
XTAO
XVSS
AVDD1
AOUT1
AIN1
LOUT1
AVSS1
AVSS2
LOUT2
AIN2
AOUT2
AVDD2
RMUT
LMUT
VDD
AVDD3
DOUT
60
DIGITAL
OUT
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
D/A
INTERFACE
TIMING
LOGIC
OVER SAMPLING
PWM
3rd ORDER
NOISE SHAPER
DIGITAL FILTER
SERIAL IN
INTERFACE
59
58
INTERNAL BUS
PWM
VSS
57
ERROR
CORRECTOR
16K
RAM
SUBCODE
PROCESSOR
FILI
PCO
54
56
55
DIGITAL
PLL
EFM
DEMODULATOR
SERVO
INTERFACE
SERVO AUTO
SEQUENCER
CPU
INTERFACE
FILO
53
CLTV
AVSS3
52
ASYI
BIAS
RFAC
51
49
50
ASYMMETRY
CORRECTION
48
ASYO
AVDD0
47
46
IGEN
AVSS0
45
ADIO
44
SERVO DSP
FOCUS
SERVO
TRACKING
SERVO
SLED
SERVO
CE
TE
RFDC
43
41
42
OPERATIONAL
AMPLIFIER
ANALOG SWITCH
A/D
CONVERTER
PWM GENERATOR
CLOCK
GENERATOR
FOCUS PWM
GENERATOR
TRACKING
PWM GENERATOR
SLED PWM
GENERATOR
DIGITAL
CLV
MIRR, DFCT,
FOK
DETECTOR
SE
40
FE
39
VC
38
XTSL
37
TES1
36
TEST
35
VSS
34
33
FRDR
32
FFDR
TRDR
31
TFDR
30
SRDR
29
28
SFDR
SSTP
27
MDP
26
25
LOCK
FOK
24
DFCT
23
22
MIRR
COUT
21
3
1
2
SQSO
SQCK
XRST
4
SYSM
IC102 BA5974FP (BD BOARD)
PRFVCC
CH4BIN
INTERFACE
CH4SIN'
RF
CH4SIN
INTERFACE
F
R
INTERFACE
CH3FIN
F
CH3RIN
R
RF
CLOK
8
SENS
9
10
SCLK
11 12
VDD
MUTE
ATSK
13
14
1516171819
XUGF
XLON
SPOB
SPOA
WFCK
GND
MUTE
2021222324252627281918171615
XPCK
GFS
C2PO
POWVCC
20
SCOR
CH3OUTR
CH3OUTF
THERMAL
SHUTDOWN
CH4OUTR
LEVEL SHIFT
CH4OUTF
7
5
6
XLAT
DATA
CAPAIN3
R
F
F
R
1234567891011121314
GND
VREFOUT
CH1FIN
CH1RIN
CAPAIN1
CH2FIN
CH2RIN
CAPAIN2
VREFIN
POWVCC
CH2OUTR
46
CH2OUTF
CH1OUTR
CH1OUTF
Page 47
IC103 CXA2568M (BD BOARD)
2
3
14
1
f04
13
f05
12
f06
11
REC
LEVEL
10
VCC
15
f03
5
REC
NF
6
REC
IN
7
RESET
C
8
BIAS
C
9
GND1
4
16
f02
17
f01
18
RESET
R02
P01
LINE
NF
LINE
IN
REFFERENCE
CURRENT
BPF
DET
BPF
DET
BPF
DET
BPF
DET
DET
RESET
Bias
REFFERENCE
CURRENT
DET
DET
BPF
BPF
12345678
910111213141516
QUAL
VREF
VDD1
VSS1
MUX
VSS3
CMP
RCLK
XO
XI
(NC)
VDD2
VSS2
T1
T2
8TH SWITCHED
CAPACITOR
FILTER
PLL 57KHz
RDS/ARI
BIPHASE
DECODER
DEFFERENTIAL
DECODER
PLL
1187.5Hz
TEST
CLOCK
APC PD AMP
VEE
1
HOLD
AGCVTH
LD
PD
VEE
2
3
4
VREF
VC
VCC
APC LD AMP
VCC
VCC
VCC
24
23
LC/PD
LD_ON
22
HOLD_SW
21
AGCCONT
20
(50%/30%
OFF)
RF_BOT
19
IC602 BA3830F (PANEL BOARD)
VEE
VC
VC
VC
ERROR AMP
FOCUS
TRACKING
ERROR AMP
RFTC
18
RF_1
17
RFO
16
RFE
15
FE
14
TE
13
A
5
B
6
C
7
D
8
9
VEE
10
11
VC BUFFER
12
VC
VC
VC
F
E
VC
RF SUMMING AMP RF_EQ_AMP
VEE
VC
VC
VC
VC
VCC
VEE
IC682 BU1924 (MAIN BOARD)
IC701 BA6956AN (DRIVER BOARD)
TSD
CONTROL LOGIC
123456789
VREF
UT2
RNF
UT1
VM
VCC
FIN
GND
RIN
47
Page 48
2
IC601 BA1450 (MAIN BOARD)
AM OSC OUT
24
V . REG
AM OSC
AM RF IN
FM BAND WIDTH
20212223
AM MIX OUT
19
AM IF IN
AM AGC
FM/AM DET OUT
161718
AM MPX IN
15
FM MPX IN
1413
VCO STOP
AM
OSC
VREG
FM
IF
123456789101112
FM IN
VCC
SD
DET
FM SD ADJ
GND
IC302 µPC1330H (MAIN BOARD)
COMPARATER
2
1
SW R1GNDSW P1
3
56789
4
CONTGNDVCCSW P2GND
AM
MIX
FM
DET
INVERTER
FM DET
LED
DRIVER
TUNED
AM IF
AM
DET
STEREO
AGC
COMP
SW R2
IN REQ MUTE
IF OUT
SD
1/2
DECODER
R OUT
SW
L OUT
1/2
PD
VCO
AM/FM
IC681 M5218AFP (MAIN BOARD)
+
–
2 36
1
+
–
V–
4
5
V+
7
8
IC651 LC72130 (MAIN BOARD)
XOUT
VSS
AOUT
24
22
23
REFERENCE
DIVIDER
2
C B
I / F
AIN2
21
SWALLOW COUNTER
PD2
20
1/16.1/17 4bits
PD1
19
REFERENCE
DIVIDER
SWALLOW COUNTER
DATA SHIFT REGISTER
AIN1
18
1/16.1/17 4bits
PHASE DETECTOR
CHARGE PUMP
LATCH
17
AOUT1
FMIN
VDD
15
16
POWER
ON
RESET
AMIN
I02
13
14
1/2
C B
I / F
48
3
1
2
XIN
B05
4
CE
D1
6
5
CL
D0
8
7
B01
B02
10
9
B04
B03
12
11
I01
IFIN
Page 49
3
NOTE:
• -XX, -X mean standardized parts, so they may
have some differences from the original one.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
• The mechanical parts with no reference number
in the exploded views are not supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
8-1. MAIN SECTION
SECTION 8
EXPLODED VIEWS
• Abbreviation
CND: Canadian model
AUS: Australian model
G: German model
EA : Saudi Arabia model
MY : Malaysia model
SP : Singapore model
TH : Thai model
KR : Korea model
MX : Mexican model
AR : Argentina model
E2 : Central and South AMERICA
E3 : Middle and Near East
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
1011-773-045-11 WIRE (FLAT TYPE) (17 CORE)
102A-4428-097-A MAIN BOARD,COMPLETE (BX7:AEP,CIS,UK,G)
102A-4428-334-A MAIN BOARD,COMPLETE (BX7:CND,US)
102A-4428-340-A MAIN BOARD,COMPLETE (DX7:EA)
102A-4428-347-A MAIN BOARD,COMPLETE (DX7:SP,MY,E3)
102A-4428-349-A MAIN BOARD,COMPLETE (DX7:E2,MXAR)
102A-4428-351-A MAIN BOARD,COMPLETE (DX7:AUS)
102A-4473-174-A MAIN BOARD,COMPLETE (DX7:TH)
102A-4473-337-A MAIN BOARD,COMPLETE (DX7:KR)
102A-4473-346-A MAIN BOARD,COMPLETE (DX7J)
* 1034-988-533-01 HOLDER, PWB
1041-773-122-11 WIRE (FLAT TYPE) (19 CORE)
105A-4428-089-A TRANS BOARD,COMPLETE (BX7:US)
105A-4428-346-A TRANS BOARD,COMPLETE
105A-4428-536-A TRANS BOARD,COMPLETE (DX7:AUS)
105A-4428-537-A TRANS BOARD,COMPLETE (DX7:MX)
105A-4428-960-A TRANS BOARD,COMPLETE (BX7:AEP,G,UK,CIS)
105A-4473-173-A TRANS BOARD,COMPLETE (DX7:TH)
105A-4473-195-A TRANS BOARD,COMPLETE (BX7:CND)
105A-4473-329-A TRANS BOARD,COMPLETE (DX7:KR)
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
(DX7:EA,SP,MY,E2,AR,E3)
105A-4473-345-A TRANS BOARD,COMPLETE (DX7J)
1063-703-571-11 BUSHING (S) (4516), CORD (DX7:TH)
(DX7:EA,SP,MY,E2,MX,AR,AUS,E3,KR)
107A-4473-170-A POWER AMP BOARD,COMPLETE (DX7:TH)
107A-4473-342-A POWER AMP BOARD,COMPLETE (DX7J)
01081-575-653-11 CORD, POWER (DX7:E3/DX7J)
01081-696-847-11 CORD, POWER (DX7:AUS)
01081-769-079-21 CORD, POWER (DX7:KR)
01081-777-071-21 CORD, POWER (BX7:G,AEP,CIS,DX7:EA,MY,SP)
01081-782-315-11 CORD, POWER (DX7:E2,MX)
01081-783-820-11 CORD, POWER (BX7:CND,US)
01081-783-941-11 CORD, POWER (DX7:AR)
Note: Two different types of tape mechanism are used depending on models.
They maintain compatibility as an entire mechanism even though
there are some different parts are used.
1513-016-574-01 SPRING (HEAD), TENSION
152X-3374-156-1 PINCH LEVER (REV) ASSY
153X-3374-155-1 PINCH LEVER (FWD) ASSY
1543-017-365-01 BASE (PINCH LEVER FWD)
1553-017-366-01 BASE (PINCH LEVER REV)
1563-016-567-01 SPRING (CASSETTE), LEAF
HP101A-2004-778-A BASE (A) ASSY, HEAD
HRPE101 A-2004-779-A BASE (B) ASSY, HEAD
201X-4952-881-1 CHASSIS ASSY, MAIN
2023-041-946-01 BELT (CAPSTAN B)
2034-227-239-01 BELT (CAPSTAN C)
2043-016-568-01 BRACKET (MOTOR)
205X-3378-040-1 FLYWHEEL (A-FWD) ASSY
• SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
• Abbreviation
CND: Canadian model
AUS : Australian model
G: German model
EA : Saudi Arabia model
MY : Malaysia model
SP : Singapore model
TH : Thai model
KR : Korea model
MX : Mexican model
AR : Argentina model
E2 : Central and South AMERICA
E3 : Middle and Near East
C1821-163-123-00 CERAMIC CHIP180PF5%50V
When indicating parts by reference number,
please include the board name.
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
R1111-216-121-91 RES-CHIP1M5%1/10W
R1131-216-121-91 RES-CHIP1M5%1/10W
R1141-216-073-00 METAL CHIP10K5%1/10W
R1161-216-001-00 METAL CHIP105%1/10W
R1171-216-049-91 RES-CHIP1K5%1/10W
R1181-216-025-91 RES-CHIP1005%1/10W
R1191-216-059-00 METAL CHIP2.7K5%1/10W
R1231-216-073-00 METAL CHIP10K5%1/10W
R1241-216-097-91 RES-CHIP100K5%1/10W
R1311-216-033-00 METAL CHIP2205%1/10W
R1431-216-103-00 METAL CHIP180K5%1/10W
R1441-216-103-00 METAL CHIP180K5%1/10W
R1471-216-069-00 METAL CHIP6.8K5%1/10W
R1481-216-001-00 METAL CHIP105%1/10W
R1491-216-001-00 METAL CHIP105%1/10W
R1581-216-111-00 METAL CHIP390K5%1/10W
R1591-216-101-00 METAL CHIP150K5%1/10W
R1621-216-101-00 METAL CHIP150K5%1/10W
R1711-216-078-00 RES-CHIP16K5%1/10W
R1721-216-073-00 METAL CHIP10K5%1/10W
R1731-216-077-91 RES-CHIP15K5%1/10W
R1811-216-078-00 RES-CHIP16K5%1/10W
R1821-216-073-00 METAL CHIP10K5%1/10W
R1831-216-077-91 RES-CHIP15K5%1/10W
R6851-249-417-11 CARBON1K5%1/4W F
R6861-249-418-11 CARBON1.2K5%1/4W F
R6871-249-420-11 CARBON1.8K5%1/4W F
R6881-249-422-11 CARBON2.7K5%1/4W F
R6891-247-843-11 CARBON3.3K5%1/4W
R7501-249-406-11 CARBON1205%1/4W F
R7511-249-406-11 CARBON1205%1/4W F
R7521-249-406-11 CARBON1205%1/4W F
R7531-249-406-11 CARBON1205%1/4W F
R7541-249-406-11 CARBON1205%1/4W F
R10011-249-409-11 CARBON2205%1/4W F
R10021-249-409-11 CARBON2205%1/4W F
R10031-249-414-11 CARBON5605%1/4W F
R10041-247-834-11 CARBON1.3K5%1/4W
R10051-247-818-11 CARBON3005%1/4W
R10061-247-864-11 CARBON24K5%1/4W
R10071-247-780-00 CARBON7.55%1/4W
R10081-249-417-11 CARBON1K5%1/4W F
FE6011-693-477-11 FRONT END (3 GANGS) (DX7,DX7J)
FE6021-693-478-11 FRONT END (FM3 GANGS) (US,CND)
FE6031-693-496-11 FRONT END (4 GANGS) (AEP,G,UK,CIS)
< IC >
IC1018-759-652-04 IC M61504FP-TP
IC1028-759-099-06 IC M5218AFP-TE1
IC1048-759-099-06 IC M5218AFP-TE1 (DX7,DX7J)
IC2018-749-923-04 IC TOTX178A (OPTICAL DIGITAL OUT)
IC3018-759-652-80 IC HA12227F
IC3028-759-143-54 IC uPC1330HA
IC3038-759-656-83 IC NJM4580MD-TE
IC3048-759-656-83 IC NJM4580MD-TE
IC4018-759-652-48 IC M30622MAA-A25FP
IC5018-759-635-63 IC M51943BSL-TP
IC6018-759-652-00 IC BA1450
IC6518-759-288-54 IC LC72130
IC6818-759-099-06 IC M5218AFP-TE1 (AEP,G,UK,CIS)
IC6828-759-541-48 IC BU1924 (AEP,G,UK,CIS)
R1011-216-049-91 RES-CHIP1K5%1/10W
R1031-216-073-00 METAL CHIP10K5%1/10W
R1041-216-073-00 METAL CHIP10K5%1/10W
R1051-216-097-91 RES-CHIP100K5%1/10W
(BX7,DX7)
R1071-216-254-00 RES-CHIP220K5%1/8W
R1081-216-097-91 RES-CHIP100K5%1/10W
R1091-216-073-00 METAL CHIP10K5%1/10W
R1101-216-045-00 METAL CHIP6805%1/10W
R1111-216-073-00 METAL CHIP10K5%1/10W
R1121-216-089-91 RES-CHIP47K5%1/10W
R1131-216-057-00 METAL CHIP2.2K5%1/10W
R1141-216-097-91 RES-CHIP100K5%1/10W
R1151-216-073-00 METAL CHIP10K5%1/10W
R1161-216-049-91 RES-CHIP1K5%1/10W
R1211-216-222-00 RES-CHIP10K5%1/8W
R1441-216-049-91 RES-CHIP1K5%1/10W
R1451-216-041-00 METAL CHIP4705%1/10W
R1461-216-041-00 METAL CHIP4705%1/10W
R1471-216-041-00 METAL CHIP4705%1/10W
R1511-216-049-91 RES-CHIP1K5%1/10W
R1531-216-073-00 METAL CHIP10K5%1/10W
R1541-216-073-00 METAL CHIP10K5%1/10W
R1551-216-097-91 RES-CHIP100K5%1/10W
R1571-216-105-91 RES-CHIP220K5%1/10W
R1581-216-097-91 RES-CHIP100K5%1/10W
R1591-216-073-00 METAL CHIP10K5%1/10W
R1601-216-045-00 METAL CHIP6805%1/10W
R1611-216-222-00 RES-CHIP10K5%1/8W
R1621-216-089-91 RES-CHIP47K5%1/10W
R1631-216-057-00 METAL CHIP2.2K5%1/10W
R1641-216-097-91 RES-CHIP100K5%1/10W
R1651-216-073-00 METAL CHIP10K5%1/10W
R1661-216-049-91 RES-CHIP1K5%1/10W
R1711-216-073-00 METAL CHIP10K5%1/10W
(DX7,DX7J)
R1721-216-073-00 METAL CHIP10K5%1/10W
(DX7,DX7J)
R1731-216-073-00 METAL CHIP10K5%1/10W
(DX7,DX7J)
R1751-216-073-00 METAL CHIP10K5%1/10W
R2011-216-025-91 RES-CHIP1005%1/10W
R2021-216-085-00 METAL CHIP33K5%1/10W
R2031-216-025-91 RES-CHIP1005%1/10W
R2041-216-085-00 METAL CHIP33K5%1/10W
R3011-216-085-00 METAL CHIP33K5%1/10W
R3021-216-057-00 METAL CHIP2.2K5%1/10W
R3031-216-025-91 RES-CHIP1005%1/10W
R3041-216-025-91 RES-CHIP1005%1/10W
R3051-216-057-00 METAL CHIP2.2K5%1/10W
R3061-216-071-00 METAL CHIP8.2K5%1/10W
R3071-216-065-91 RES-CHIP4.7K5%1/10W
R3081-216-071-00 METAL CHIP8.2K5%1/10W
R3091-216-081-00 METAL CHIP22K5%1/10W
R3171-216-222-00 RES-CHIP10K5%1/8W
R3181-216-073-00 METAL CHIP10K5%1/10W
R3191-216-111-00 METAL CHIP390K5%1/10W
R3201-216-057-00 METAL CHIP2.2K5%1/10W
R3211-216-071-00 METAL CHIP8.2K5%1/10W
R3311-216-099-00 METAL CHIP120K5%1/10W
R3321-216-025-91 RES-CHIP1005%1/10W
R3331-216-067-00 METAL CHIP5.6K5%1/10W
R3341-216-100-00 RES-CHIP130K5%1/10W
R3351-216-033-00 METAL CHIP2205%1/10W
R3361-216-099-00 METAL CHIP120K5%1/10W
R3371-216-033-00 METAL CHIP2205%1/10W
R3381-216-081-00 METAL CHIP22K5%1/10W
R3391-216-075-00 METAL CHIP12K5%1/10W
R3401-216-107-00 METAL CHIP270K5%1/10W
R3411-216-033-00 METAL CHIP2205%1/10W
R3421-216-075-00 METAL CHIP12K5%1/10W
R3431-219-787-17 FUSIBLE5.65%1/4W
0 R3441-219-787-17 FUSIBLE5.65%1/4W
R3451-216-079-00 METAL CHIP18K5%1/10W
R3461-216-079-00 METAL CHIP18K5%1/10W
R3471-216-073-00 METAL CHIP10K5%1/10W
R3511-216-085-00 METAL CHIP33K5%1/10W
R3521-216-057-00 METAL CHIP2.2K5%1/10W
R3531-216-025-91 RES-CHIP1005%1/10W
R3541-216-025-91 RES-CHIP1005%1/10W
R3551-216-057-00 METAL CHIP2.2K5%1/10W
R3561-216-071-00 METAL CHIP8.2K5%1/10W
R3571-216-065-91 RES-CHIP4.7K5%1/10W
R3581-216-071-00 METAL CHIP8.2K5%1/10W
R3591-216-085-00 METAL CHIP33K5%1/10W
R3601-216-045-00 METAL CHIP6805%1/10W
R3611-216-057-00 METAL CHIP2.2K5%1/10W
R3631-216-057-00 METAL CHIP2.2K5%1/10W
R3641-216-045-00 METAL CHIP6805%1/10W
R3661-216-061-00 METAL CHIP3.3K5%1/10W
R3671-216-089-91 RES-CHIP47K5%1/10W
R3681-216-061-00 METAL CHIP3.3K5%1/10W
R3691-216-061-00 METAL CHIP3.3K5%1/10W
R3711-216-238-91 RES-CHIP47K5%1/8W
R3771-216-089-91 RES-CHIP47K5%1/10W
R3781-216-094-00 RES-CHIP75K5%1/10W
R3811-216-099-00 METAL CHIP120K5%1/10W
R3821-216-025-91 RES-CHIP1005%1/10W
R3831-216-067-00 METAL CHIP5.6K5%1/10W
R3841-216-100-00 RES-CHIP130K5%1/10W
R3851-216-296-91 SHORT0
R3861-216-099-00 METAL CHIP120K5%1/10W
R3871-216-033-00 METAL CHIP2205%1/10W
R3881-216-081-00 METAL CHIP22K5%1/10W
R3891-216-075-00 METAL CHIP12K5%1/10W
R3901-216-107-00 METAL CHIP270K5%1/10W
R3911-216-296-91 SHORT0
R3921-216-075-00 METAL CHIP12K5%1/10W
R3931-216-081-00 METAL CHIP22K5%1/10W
R3941-216-033-00 METAL CHIP2205%1/10W
R3961-216-065-91 RES-CHIP4.7K5%1/10W
R4071-216-065-91 RES-CHIP4.7K5%1/10W
R4091-216-295-91 SHORT0
R4111-216-109-00 METAL CHIP330K5%1/10W
R6211-216-075-00 METAL CHIP12K5%1/10W
R6221-216-057-00 METAL CHIP2.2K5%1/10W
R6231-216-073-00 METAL CHIP10K5%1/10W
R6241-216-073-00 METAL CHIP10K5%1/10W
R6251-216-073-00 METAL CHIP10K5%1/10W
R6411-216-097-91 RES-CHIP100K5%1/10W
R6421-216-073-00 METAL CHIP10K5%1/10W
R6551-216-073-00 METAL CHIP10K5%1/10W
R6561-216-222-00 RES-CHIP10K5%1/8W
R6581-216-174-00 RES-CHIP1005%1/8W
R5061-216-041-00 METAL CHIP4705%1/10W
R5081-216-065-91 RES-CHIP4.7K5%1/10W
R5091-216-081-00 METAL CHIP22K5%1/10W
R5101-216-097-91 RES-CHIP100K5%1/10W
R5111-216-174-00 RES-CHIP1005%1/8W
R5231-216-073-00 METAL CHIP10K5%1/10W
R5241-216-073-00 METAL CHIP10K5%1/10W
R5461-216-073-00 METAL CHIP10K5%1/10W
R5471-216-073-00 METAL CHIP10K5%1/10W
R5481-216-073-00 METAL CHIP10K5%1/10W
R5661-216-073-00 METAL CHIP10K5%1/10W
R6011-216-295-91 SHORT0 (EXCEPT US,CND)
R6021-216-029-00 METAL CHIP1505%1/10W
R6031-216-037-00 METAL CHIP3305%1/10W
R6041-216-017-91 RES-CHIP475%1/10W
R6051-216-045-00 METAL CHIP6805%1/10W
R6061-216-037-00 METAL CHIP3305%1/10W
R6071-216-053-00 METAL CHIP1.5K5%1/10W
R6081-216-017-91 RES-CHIP475%1/10W
R6091-216-295-91 SHORT0 (US,CND)
R6101-216-045-00 METAL CHIP6805%1/10W
R6111-216-182-00 RES-CHIP2205%1/8W
R6121-216-214-00 RES-CHIP4.7K5%1/8W
R6131-216-206-00 RES-CHIP2.2K5%1/8W
R6141-216-035-00 METAL CHIP2705%1/10W
R8241-216-073-00 METAL CHIP10K5%1/10W
R8251-216-065-91 RES-CHIP4.7K5%1/10W
R8261-216-085-00 METAL CHIP33K5%1/10W
R8271-216-081-00 METAL CHIP22K5%1/10W
R8291-216-230-00 RES-CHIP22K5%1/8W
R8311-216-216-00 RES-CHIP5.6K5%1/8W
R8411-216-081-00 METAL CHIP22K5%1/10W
IC6018-759-652-49 IC TMP88CP77F-1A22
IC6028-759-570-21 IC BA3830F-E2
IC6038-759-648-23 IC RPM6940-H4
IC7218-759-496-40 IC M65850FP (EA,DX7J)
IC7228-759-634-51 IC M5218AP (DX7,DX7J)
< JACK >
J6311-785-569-11 JACK (SMALL TYPE) (PHONE)
J7211-785-569-11 JACK (SMALL TYPE) (MIC1) (DX7,DX7J)
J7221-785-569-11 JACK (SMALL TYPE) (MIC2) (EA,DX7J)
R6511-249-429-11 CARBON10K5%1/4W
R6521-249-410-11 CARBON2705%1/4W F
R6531-249-411-11 CARBON3305%1/4W
R6541-249-413-11 CARBON4705%1/4W F
R6551-249-415-11 CARBON6805%1/4W F
R6561-249-417-11 CARBON1K5%1/4W F
R6571-249-418-11 CARBON1.2K5%1/4W F
R6581-249-418-11 CARBON1.2K5%1/4W F
R6591-249-417-11 CARBON1K5%1/4W F
R6601-249-420-11 CARBON1.8K5%1/4W F
R6611-247-843-11 CARBON3.3K5%1/4W
R6621-249-425-11 CARBON4.7K5%1/4W F
R6641-249-429-11 CARBON10K5%1/4W
R6651-249-410-11 CARBON2705%1/4W F
R6661-249-411-11 CARBON3305%1/4W
R6671-249-413-11 CARBON4705%1/4W F
R6681-249-414-11 CARBON5605%1/4W F
R6691-249-414-11 CARBON5605%1/4W F
R6701-249-415-11 CARBON6805%1/4W F
R6711-249-422-11 CARBON2.7K5%1/4W F
R6721-249-420-11 CARBON1.8K5%1/4W F
R6731-249-422-11 CARBON2.7K5%1/4W F
R6741-247-843-11 CARBON3.3K5%1/4W
R6751-249-425-11 CARBON4.7K5%1/4W F
R6761-249-427-11 CARBON6.8K5%1/4W F
R6821-249-413-11 CARBON4705%1/4W F
R6831-249-414-11 CARBON5605%1/4W F
R6841-249-415-11 CARBON6805%1/4W F
R6931-249-429-11 CARBON10K5%1/4W
R6941-249-429-11 CARBON10K5%1/4W
R6951-249-429-11 CARBON10K5%1/4W
R6961-249-429-11 CARBON10K5%1/4W
R7011-249-410-11 CARBON2705%1/4W F
R7021-249-408-11 CARBON1805%1/4W F
R7031-249-410-11 CARBON2705%1/4W F
R7041-249-411-11 CARBON3305%1/4W
R7051-249-410-11 CARBON2705%1/4W F
R7061-249-410-11 CARBON2705%1/4W F
R7211-260-099-11 CARBON1K5%1/2W
(DX7,DX7J)
R7221-260-100-11 CARBON1.2K5%1/2W
(DX7,DX7J)
R7231-247-863-91 CARBON22K5%1/4W
(EA,DX7J)
R7241-247-863-91 CARBON22K5%h1/4W
(EA,DX7J)
R7251-247-863-91 CARBON22K5%1/4W
(EA,DX7J)
R7261-249-437-11 CARBON47K5%1/4W
(EA,DX7J)
R7271-247-863-91 CARBON22K5%1/4W
(EA,DX7J)
R7281-249-429-11 CARBON10K5%1/4W
(EA,DX7J)
R7291-247-863-91 CARBON22K5%1/4W
(EA,DX7J)
R7301-247-863-91 CARBON22K5%1/4W
(EA,DX7J)
R7311-247-881-00 CARBON120K5%1/4W
(EA,DX7J)
R7321-249-417-11 CARBON1K5%1/4W F
R7331-249-429-11 CARBON10K5%1/4W
(EA,DX7J)
R7341-247-807-31 CARBON1005%1/4W
(DX7,DX7J)
R7351-247-885-00 CARBON180K5%1/4W
(DX7,DX7J)
R7361-249-429-11 CARBON10K5%1/4W
(DX7,DX7J)
R7371-249-437-11 CARBON47K5%1/4W
(EXCEPT EA,BX7)
< VARIABLE RESISTOR >
RV721 1-225-739-11 RES, VAR CARBON 50K (ECHO LEVEL)
(EA,DX7J)
RV722 1-225-739-11 RES, VAR CARBON 50K (MIC LEVEL)
0 S9511-771-291-11 SWITCH, POWER (VOLTAGE SELECTOR)
(DX7:EA,SP,MY,E2,AR,E3,DX7J)
< TRANSFORMER >
0 T9711-435-261-11 TRANSFORMER, POWER (AEP,G,UK,EA,CIS)
0 T9711-435-263-11 TRANSFORMER, POWER (CND)
0 T9711-435-469-11 TRANSFORMER, POWER (US)
0 T9711-435-325-11 POWER TRANSFORMER (DX7,DX7J)
0 1081-575-653-11 CORD, POWER (DX7:E3/DX7J)
0 1081-696-847-11 CORD, POWER (DX7:AUS)
0 1081-769-079-21 CORD, POWER (DX7:KR)
0 1081-777-071-21 CORD, POWER (BX7:AEP,G,CIS/DX7:EA,SP,MY)
0 1081-782-315-11 CORD, POWER (DX7:E2,MX)
0 1081-783-820-11 CORD, POWER (BX7:US,CND)
0 1081-783-941-11 CORD, POWER (DX7:AR)
0 1081-790-226-11 CORD, POWER (BX7:UK)
3021-792-024-11 WIRE (FLAT TYPE) (16 CORE)
HP101 A-2004-778-A BASE (A) ASSY, HEAD
HRPE101 A-2004-779-A BASE (B) ASSY, HEAD
M1X-3378-241-1 MOTOR ASSY (INCLUDING PULLEY)
FL6011-517-928-11 INDICATOR TUBE, FLUORESCENT
M721A-4672-826-A MOTOR ASSY (INCLUDING PULLEY)
M9611-698-792-11 FAN, DC (DX7:KR)
#67-685-881-09 SCREW +BVTT 4X8 (S)
#77-685-781-09 SCREW +PTT 2X4 (2)
71
Page 72
HCD-BX7/DX7/DX7J
REVISION HISTORY
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Also, clicking the version at the upper right on the revised page allows you to jump to the next revised
page.
Ver.DateDescription of Revision
1.02000.02New
1.12001.06Correction of exploded views (M721). ( SPM-01021 )
1.22001.08Correction of exploded views
(Tape mechanism deck section and CD base unit section). ( SPM-01030 )
1.32002.08Addition of Ref. No.272 CHASSIS for exploded views. ( SPM-02070 )
1.42003.12Part No. correction of Ref. No. 301 for exploded views. ( SPM-03061 )
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