JVC MXK-35-V Service manual

SERVICE MANUAL

COMPACT COMPONENT SYSTEM

MX-K35V

MX-K35V

RM-SMXK35V REMOTE CONTROL

1 2 3

4 5 6

7 8 9

10 +10

CD1CD2CD3CD

PROGRAM
/RANDOM

KARAOKE

SOUND
MODE

ACTIVE

BASS EX.

Contents

REPEAT TAPE A/B

NEXT V.INTRO HIGHLIGHTPREV.

RETURN STILL

KEY CONTROL

VOLUME

NTSC/PAL
COMPATIBILITY

STANDBY/ON

SLEEP

AUX

FM /AM

FM MODE

SELECT

TAPE

ON SCREEN

MPX

ECHO

FADE

MUTING

COMPACT COMPONENT SYSTEM

STANDBY

PHONES

MIC

STANDBY/ON

X
U

A

REPEAT PROGRAM RANDOM

MIC LEVEL

MAXMIN

EJECT

PLAY

A

3-CD

PLAY & EXCHANGE

MX-K35V

CANCEL SET

E

VCD NUMBER

D

TUNING

P

C

A

T

M/AM
F

SELECT

CD

REC START

/STOP REC START DUBBING

CLOCK

KEY CONTROL

/TIMER

RETURNPBC

FULL - LOGIC CONTROL CD SYNCHRO RECORDING

1 BIT

PREV

TAPE
A/B

CD-R/RW PLAYBACK

DUAL D/A
CONVERTER

ACTIVE

BASS EX.

NEXT

PRESET

E

M

U

L

O

V

P

K

O

C

P

O

R

SOUND
MODE

C

C

L

I

A

S

S

DISC SKIP

CD CONTROL

1

2

3

D

D

D

C

C

C

EJECT

REC/PLAY

B

CA-MXK35VSP-MXK35V SP-MXK35V

Area suffix
US ---------------------- Singapore
UX ------------------- Saudi Arabia

Safety precautions
Preventing static electricity
Important for laser products
Disassembly method
Adjustment method
Flow of functional operation
until TOC read

COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.

1-2
1-3
1-4
1-5
1-20

1-22

Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
Wiring connections

1-23
1-23
1-24
1-35

No.21033

Nov. 2001

MX-K35V

1. This design of this product contains special hardware and many circuits and components specially for safety
purposes. For continued protection, no changes should be made to the original design unless authorized in
writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services
should be performed by qualified personnel only.

2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product
should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further
relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics. These

characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily
be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which
have these special safety characteristics are identified in the Parts List of Service Manual. Electrical
components having such features are identified by shading on the schematics and by ( ) on the Parts List in
the Service Manual. The use of a substitute replacement which does not have the same safety characteristics
as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or
other hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be
separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of
electric shock and fire hazard. When service is required, the original lead routing and dress should be
observed, and it should be confirmed that they have been returned to normal, after re-assembling.

5. Leakage currnet check (Electrical shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metal parts of the product
(antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the
product is safe to operate without danger of electrical shock.
Do not use a line isolation transformer during this check.

Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage
current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return
path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more
sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part,
particularly any exposed metal part having a return path to
the chassis, and meausre the AC voltage across the resistor.
Now, reverse the plug in the AC outlet and repeat each
measurement. Voltage measured any must not exceed 0.75 V
AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).

0.15 F AC TYPE

1500 10W

Good earth ground

AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)

Place this
probe on
each exposed
metal part.

!

1. This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs must be made in accordance with the relevant safety standards.

4. It is essential that safety critical components are replaced by approved parts.

5. If mains voltage selector is provided, check setting for local voltage.

Burrs formed during molding may
be left over on some parts of the
chassis. Therefore, pay attention to
such burrs in the case of
preforming repair of this system.

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " "
mark nearby are critical for safety.
(This regulation does not correspond to J and C version.)

1-2

Preventing static electricity

1. Grounding to prevent damage by static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged,
can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing
repairs.

MX-K35V

2. About the earth processing for the destruction prevention by static electricity

In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of
the work environment.
Be careful to use proper grounding in the area where repairs are being performed.

2-1 Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.

2-2 Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(caption)
Anti-static wrist strap

Conductive material
(conductive sheet) or iron plate

3. Handling the optical pickup

1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)

2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power
source can easily destroy the laser diode.

4. Handling the CD changer unit (optical pickup)

1. Do not subject the CD changer unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.

2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific
details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the CD
changer unit. Be careful not to take too long a time when attaching it to the connector.

3. Handle the flexible cable carefully as it may break when subjected to strong force.

4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power.
Do not turn it

CD changer

unit

CD changer
mechanism

assembly

Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for pick-up and how to
detach the CD changer mechanism.

1. Remove the CD changer unit.

2. Disconnect the harness from connector on the CD motor board.

3. Solder is put up before the card wire is removed from connector CN601
on the main board as shown in Fig.1 and Fig. 2.
(When the wire is removed without putting up solder, the CD pick-up
assembly might destroy.)

4. Please remove solder after connecting the card wire with CN601 when
you install picking up in the substrate.

Fig.2

Fig.1

Soldering

1-3

MX-K35V

Important for laser products

1.CLASS 1 LASER PRODUCT

2.DANGER : Invisible laser radiation when open and inter

lock failed or defeated. Avoid direct exposure to beam.

3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.

4.CAUTION : The compact disc player uses invisible
laserradiation and is equipped with safety switches
whichprevent emission of radiation when the drawer is
open and the safety interlocks have failed or are de
feated. It is dangerous to defeat the safety switches.

VARNING : Osynlig laserstrålning är denna del är öppnad

och spårren är urkopplad. Betrakta ej strålen.

VARO : Avattaessa ja suojalukitus ohitettaessa olet

alttiina näkymättömälle lasersäteilylle.Älä katso
säteeseen.

5.CAUTION : If safety switches malfunction, the laser is able
to function.

6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.

CAUTION

!

Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.

ADVARSEL : Usynlig laserstråling ved åbning , når

sikkerhedsafbrydere er ude af funktion. Undgå
udsættelse for stråling.

ADVARSEL : Usynlig laserstråling ved åpning,når

sikkerhetsbryteren er avslott. unngå utsettelse
for stråling.

REPRODUCTION AND POSITION OF LABELS

WARNING LABEL

DANGER: Invisible laser

radiation when open and
interlock failed or defeated.
AVOID DIRECT EXPOSURE
TO BEAM. (e)

CLASS 1
LASER PRODUCT

ADVARSEL: Usynlig laser­stråling ved åbning, når
sikkerhedsafbrydere er ude
af funktion. Undgåudsæt­telse for stråling (d)

VARNING: Osynlig laser­strålning när denna del är
öppnad och spärren är
urkopplad. Betrakta ej
strålen. (s)

VARO: Avattaessa ja suo­jalukitus ohitettaessa olet
alttiina näkymättömälle
lasersäteilylle. Älä katso
säteeseen. (f)

1-4

MX-K35V

Disassembly method

Commence disassembly of this set by removing the main units and then proceed to the components and
assemblies inside the units.

Replacement of the fuses and the power IC 1-6

Top cover 1-7
CD changer unit 1-8
Front panel assembly 1-9
Chassis unit 1-17

CD changer unit 1-8

Removing the main board 1-10
Removing the CD changer mechanism assembly 1-11
Removing the CD pickup 1-12
Replacing the loading motor and belt of the CD changer tray 1-12
Replacing the CD tray rotor belt of the CD changer, and removing the motor 1-12

Front panel assembly 1-9

Removing the cassette deck mechanism 1-13
Removing the head phone board 1-13
Removing the microphone amplifier board 1-14
Removing the control/FL board 1-14
Removing the switch board and active bass ex. switch board 1-15
Removing the cassette deck main motor, and replacing the main belts 1-16
Removing the leaf switches of the cassette deck mechanism 1-16
Removing the cassette deck heads 1-17

Chassis unit 1-17

Removing the Video & CD board 1-17
Removing the 3-pin regulator 1-18
Removing the power amplifier board, voltage selector board
and power transformer board 1-19

1-5

MX-K35V

<Disassembly of the main blocks of this set>

Replacement of the fuses and the power IC

Replacing the fuses (See Fig.1)

Prior to performing the following procedure, remove
the top cover.

1.

Replace the fuses inside.

Fuse (F953)

1.25A 250V
Fuse (F951)

2.5A 250V

Power transformer
board

[Caution] Be sure to use fuses with the specified

ratings.

Replacing the power IC (See Fig.2 to 4)

Prior to performing the following procedure, remove
the top cover.

1.

Remove the two screws A that attach the heat sink
cover to the rear panel.

2.

Pull the heat sink cover outward.

3.

Remove the two screws B from the bracket that
retains the power IC.

4.

Remove the solder fixing the power IC.

Fuse (F952)

1.6A 250V

Chassis

Fig.1

Rear panel

A

Rear panel

B

Heat sink

Heat sink cover

Fig.2

Power amplifier board

Rear

Power IC
soldering part

1-6

Fig.3

Fig.4

Removing the top cover

(See Fig.5 and 6)

1.

Remove the two screws C and four screws D that
retain the top cover from the rear of the body.

2.

Remove the four screws E retain the top cover from
the two sides of the body.

3.

Remove the top cover from the body by lifting it
toward the rear.

Top cover

MX-K35V

C

DD

Fig.5

Front panel assembly

E

E

Fig.6

1-7

MX-K35V

Removing the CD changer unit

(See Fig.7 to 10)

Prior to performing the following procedures,

remove the top cover.

[Caution] Although the CD mechanism unit can be

removed without removing the CD tray
panel, it is still recommended to remove it
in order to prevent damage.

a.

From the front panel side of this set, push in the
sections marked with arrows and pull out the CD
tray toward the front.

b.

Remove the CD tray panel by pushing both of its
extremities upward in the direction of the arrows.

c.

Push the CD tray deep into the set.

1.

Disconnect the cassette head wires from the
connectors CN307 and CN308 on the main board,
which is located below the CD changer unit.

2.

Disconnect the microphone amplifier wire from the
connector CN306 on the main board.

3.

Disconnect the card wires from the connectors
CN301, CN302, CN305 and CN606 on the main
board.

4.

Disconnect the parallel wires from the connectors
CN902A, CN902B and CN902C on the power
amplifier board.

5.

From the rear of the set, remove the two screws F
retaining the CD changer unit, then remove the four
screws G retaining the ANTENNA terminal the
AUX IN terminal and LINE OUT terminal.

6.

Push down and disengage the two claws a holding
the CD changer unit at the bottom of its front panel
and then remove the CD changer unit.(See Fig. 10)

CD tray panel

Fig.7

1-8

AUX IN
terminal

G

Fig.9

F

ANTENNA
terminal

CD tray panel

Fig.8

CD changer
unit

Claw a

Fig.10

Removing the front panel assembly

(See Fig.11 and 12)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.

1.

Disconnect the parallel wire and card wire from the
connectors CN901 and CN903 on the power
amplifier board.

2.

Remove the two screws H retaining the front panel
assembly onto the bottom of the body.

3.

Remove the screw J retaining the cassette deck
mechanism and then remove the GND lug b that
comes from the power amplifier board.

4.

Disengage the claws c on both sides at the bottom
of the front panel assembly and then remove the
assembly.

MX-K35V

H

Fig.11

Claw c

GND lug b

Control/FL board

Power amplifier board

J

Fig.12

1-9

MX-K35V

<Disassembly of units and assembly
inside this set>

Removing the main board

(See Fig.13 and 14)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.

1.

Disconnect the wires from CN602 and CN603 on
the main board, which is located on the backside of
the CD changer unit.

2.

Disconnect the card wire from connector CN604 of
the main board at the back of the CD changer unit.

3.

The three screws K and screw with washer L retain
the main board should be removed.

4.

Remove the main board by pulling it toward the
side where the CN601 is located.

5.

Using solder, short the CD pickup to connect to
short round.

[Caution] (See Fig.14)

After re-connecting the wires, be sure
to remove the shorting solder from the
GND connection.

K

CN604

CN603CN602

Main board

Fig.13

CN601

K

L

6.

Disconnect the card wire from the connector
CN601 on the main board and then remove the
main board.

Main board

CN601

[Caution]

Short round

Fig.14

1-10

Removing the CD changer mechanism
assembly (See Fig.15 to 17)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.

1.

Remove the spring d from the front surface of the
CD changer mechanism unit.

2.

Turn the CD changer mechanism unit upside down,
and remove the spring e connecting the unit to the
CD changer mechanism assembly.

[Note] When re-assembling after the disassembly

work, apply bonding agent on the spring to
prevent it from slipping off.

3.

Remove the two screws with the washer M
retaining the CD changer mechanism assembly.

[Caution] When replacing the CD changer

mechanism assembly, be sure not to
mistake the positions of the red and blue
dampers.

MX-K35V

[Note]

Spring d

CD changer
unit

CD changer
mechanism
assembly

M

Fig.15

Red Red

[Note]

Spring e

CD changer
mechanism
assembly

Fig.16

BlueBlue

Fig.17

1-11

MX-K35V

Removing the CD pickup (See Fig.18)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.
Also remove the CD changer mechanism
assembly.

1.2.Widen the section f.
While keeping the section f wide open, push the
section g in the direction of the arrow to remove
the shaft, and then remove the CD pickup.

Replacing the loading motor and belt

of the CD changer tray (See Fig.19)

Prior to performing the following procedure,
remove the top cover.

1.

Pull out the CD changer tray.

2.

Remove the belt from the pulley.

3.

Remove the two screws N retaining the CD
changer tray loading motor.

[Caution] When pushing in the CD changer tray, be

sure to lower the CD changer mechanism
assembly by manually turning the UD
cam gear in the direction of the arrow.

Replacing the CD tray rotor belt of the

CD changer, and removing the motor

(See Fig.20 and 21)

N

Pulley

Belt

Shaft

CD pickup

gf

Fig.18

UD cam gear

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.

1.

Remove the two screws P retaining the stopper
brackets on both sides of the CD changer unit.

2.

Remove the stopper brackets from both sides of
the CD changer unit.

3.

Pull out the CD tray from the CD changer unit, all
the way and then lift the tray upward to remove.

4.

Turn the CD tray upside down and remove the tray
rotor belt from the pulley.

5.

Turn the CD tray upside down and disconnect the
card wire from the connector CN605 on the CD
tray rotor motor assembly.

6.

Remove the two screws Q retaining the CD tray
rotor motor, and then remove the CD tray rotor
motor.

CD changer
tray

Fig.19

CD tray
rotor belt

Q

1-12

Stopper bracket

Fig.20 Fig.21

P

CN605

Pulley

Q

Removing the cassette deck mechanism

(See Fig.22)

Prior to performing the following procedure, remove

the top cover.
Also remove the CD changer unit.
Also remove the front panel assembly.

1.Remove the five screws R retaining the cassette
deck mechanism and then remove the wire clamp
lug h that comes from the back of the front panel
assembly.

MX-K35V

Front panel
assembly

R

Wire clamp
lug "h"

R

Fig.22

Removing the head phone board

(See Fig.23)

Prior to performing the following procedure, remove

the top cover
Also remove the CD changer unit.
Also remove the front panel assembly.

Remove the screw with the washer, S that retains

1.
the head phone board from the back of the front
panel assembly.

Front panel
assembly

Head phone
board

S

Fig.23

1-13

MX-K35V

Removing the microphone amplifier

board (See Fig.24 and 25)

Prior to performing the following procedure, remove

the top cover
Also remove the CD changer unit.
Also remove the front panel assembly.

Pull out the mic volume knob from the front of the

1.
front panel assembly.
Remove the screw with the washer, T that retains

2.
the microphone amplifier board.

Front panel assembly

Mic volume knob

Fig.24

Front panel
assembly

Removing the control/FL board

(See Fig.26)

Prior to performing the following procedure, remove

the top cover.
Also remove the CD changer unit.

1.Remove the three screws U that retain the
control/FL board from the back of the front panel
assembly.

Braket
Microphone

amplifier board

T

Fig.25

Front panel
assembly

U

Control/FL
board

1-14

Fig.26

Removing the switch board and active
bass ex. switch board

(See Fig.26 to 29)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.
Also remove the front panel assembly.

1.

Pull out the volume control knob from the front of
the front panel assembly.

2.

Remove the nut and washer retaining the volume
knob shaft.

3.

Remove the three screws U retaining the control/FL
board from the back of the front panel assembly.

4.

Remove the control/FL board.

5.

Remove the eleven screws V retaining the switch
board.

6.

Remove the two screws W retaining the active
bass ex. switch board.

MX-K35V

Front panel assembly

Volume knob

Fig.27

Front panel
assembly

V

W

Nut

Volume
shaft

Washer

Fig.28

Active bass ex. switch board

Switch board

Fig.29

V

1-15

MX-K35V

Removing the cassette deck main

motor, and replacing the main belts

(See Fig.22, 30 and 31)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.
Also remove the front panel assembly.

1.

Remove the five screws R retaining the cassette
deck mechanism.

2.

Remove the cassette deck mechanism.

3.

Remove the two screws X retaining the main motor
from the front side of the cassette deck.

[Caution]

4.

From the backside of the cassette deck, remove
the main motor and two main belts.

After attaching the main motor, check the
orientation of the motor and the polarity of
the wires.

Cassette deck mechanism
(Front side)

Fig.30

Cassette deck mechanism
(Back side)

X

Cassette deck main motor

[Caution]

The lengths of the cassette A (playback
only) and cassette B (record/play) main
belts are different. When attaching the
main belts, use the longer belt for
cassette A.

Removing the leaf switches of the

cassette deck mechanism

(See Fig.22 and 32)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.
Also remove the front panel assembly.

1.

Remove the five screws R that retain the cassette
deck mechanism.

2.

Remove the cassette deck mechanism.

3.

Turn the cassette deck mechanism upside down.

4.

Remove the solder from around the leaf switches.

5.

Pull out the leaf switches from the front side of the
cassette deck mechanism.

Main belt
(For B cassette)

Solder side of leaf switch

Cassette deck mechanism
(Back side)

Main belt
(For A cassette)

Fig.31

Fig.32

1-16

MX-K35V

Removing the cassette deck heads

(See Fig.22 and 33)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.
Also remove the front panel assembly.

1.

Remove the five screws R that retain the cassette
deck mechanism.

2.

Remove the cassette deck mechanism and place it
so that the front side faces up.

3.

Remove the solder from the bottom side of the
head terminal and disconnect the wire.

4.

Remove the screw Y that retains the head.

5.

Loosen the screw Z that retains the head.

6.

Hold the head and slide it in the direction of the
arrow to remove it.

Removing the Video & CD board

(See Fig.2, 34 to 36)

Prior to performing the following procedures,

remove the top cover.

1.

Disconnect the card wire from connector CN606 on
the main board.

2.

Remove the three screws AA and screw AB
retains the Video & CD board cover.

3.

In order to remove the wire from the Video & CD
board, remove the solder on the power amplifier
board.

4.

Remove the Video & CD board cover.

5.

Remove the two screws AC retains the Video & CD
board.

Cassette deck mechanism
(Front side)

PB head REC/PB head

ZY

Fig.33

ZY

AB

Heat sink

AA

Rear

Power amplifier board

Video & CD
board cover

Solder

Fig.35

CN606

Wire

Fig.34

Video & CD board

AC

Fig.36

1-17

MX-K35V

Removing the 3-pin regulator

(See Fig.2, 37 and 38)

Prior to performing the following procedures,

remove the top cover.

1.

Remove the two screws A connecting the heat sink
cover to the rear panel.

2.

Pull the heat sink cover foward you.

3.

Remove the screw AD that retains the bracket
holding the 3-pin terminal regulator.

4.

Remove the solder fixing the 3-pin regulator.

Rear panel

Heat sink

AD

Fig.37

Power amplifier board

Fig.38

Rear

Solder on the
3-pin regulator

1-18

MX-K35V

Removing the power amplifier board,
voltage selector board and power
transformer board

(See Fig.2, 3, 37, 39 to 42)

Prior to performing the following procedures,

remove the top cover.
Also remove the CD changer unit.

1.

Remove the two screws A connecting the heat
sink cover to the rear panel.

2.

Pull out the heat sink cover toward you.

3.

Remove the two screws B that retain the bracket
supporting the power IC.

4.

Remove the screw AC that retain the bracket
holding the 3-pin terminal regulator.

5.

Remove the two screws AE that retain the
SPEAKERS terminals.

6.

Remove the screw AF that retains the rear panel,
and then remove the rear panel.

7.

Remove the two screws AG that retain the voltage
selector board.

8.

Disconnect the parallel wires from the connectors
CN951A and CN951B on the power amplifier
board.

9.

Remove the screw AH that retain the power
amplifier board and then remove the assembly.

10.

Remove the solders j connecting the six wires.

11.

Remove the four screws AJ that retain the power
transformer board and then remove the assembly.

Rear panel

Speaker
terminal

AE

AG

Voltage
selector

AF

Fig.39

Rear panel

Power amplifier board

CN951B

CN951A

Power amplifier board

Chassis

AH

Voltage selector
board

AJ

Chassis

(Top view)

j

Fig.40

Chassis

Power transformer
board

AJ

j

Clamp

AC power cord

Fig.41

Fig.42

1-19

MX-K35V

Adjustment method

Measurement instruments required
for adjustment

1. Low frequency oscillator,
This oscillator should have a capacity to output 0dB
to 600ohm at an oscillation frequency of 50Hz-20kHz.

2. Attenuator impedance : 600ohm

3. Electronic voltmeter

4. Frequency counter

5. Wow flutter meter

6. Test tape
VT712 : For Tape speed and wow flutter ( 3kHz)
VT703 : For Head angle(10kHz),Play back frequency
VT724 : For reference signal test(1kHz)
VT739 : For frequency response test(63Hz,1kHz,10kHz)

7. Blank tape
TAPE : AC-225, TAPE : AC-514

8. Torque gauge : For play and back tension
Forward ; TW2111A, Reverse ; TW2121A
Fast Forward and Rewind ; TW2231A

9. Test disc
: CTS-1000(12cm),GRG-1211(8cm)

10. Jitter meter

Radio input signal

AM modulation frequency : 400Hz
Modulation factor : 30%
FM modulation frequency : 400Hz
Frequency displacement : 22.5kHz

Frequency Range

AM 522kHz~1629kHz (at 9kHz channel space)
FM 87.5MHz~108MHz

Standard measurement positions of volume
and switch

Power : Standby (Light STANDBY Indicator)
A.BUSS switch: OFF
Sound mode : OFF
Main VOL. maximum
Travers mecha set position : Disc 1
Mic MIX VOL : MAX
ECHO : OFF

Measurement conditions

Power supply voltage
AC110/127/220/230-240V (50Hz/60Hz) : US/UX

Measurement
output terminal : Speaker out
: TP101(Measuring for TUNER/DECK/CD)
: Dummy load 6ohm

Precautions for measurement

1. Apply 30pF and 33kohm to the IF sweeper output
side and 0.082 F and 100kohm in series to
the sweeper input side.

2. The IF sweeper output level should be made as
low as possible within the adjustable range.

3. Since the IF sweeper is a fixed device, there is
no need to adjust this sweeper.

4. Since a ceramic oscillator is used, there is no need
to perform any MPX adjustment.

5. Since a fixed coil is used, there is no need to adjust
the FM tracking.

6. The input and output earth systems are separated.
In case of simultaneously measuring the voltage
in both of the input and output systems with an
electronic voltmeter for two channels, therefore,
the earth should be connected particularly.

7. In the case of BTL connection amplifier, the minus
terminal of speaker is not for earthing. Therefore,
be sure not to connect any other earth terminal
to this terminal. This system is of an OTL system.

1-20

Arrangement of adjusting positions

Cassette deck mechanism
(Front side)

PB Head
(Deck-A)

REC/PB Head
(Deck-B)

MX-K35V

Main board

CN308

8-Pin

L301

FM VT voltage
measurement point

Head azimuth screw

(Forward side)

Head screw Head screw

Head azimuth screw

Tape recorder section

Items

Cassette Head
Azimuth Alignments

Recording Bias
Frequency Alignment

Measurement

conditions

Test tape
: VT703 (10kHz)
Measurement output
terminal
: Headphone Output
(32-ohm loaded)
or
Left and Right
speaker output
(6-ohm loaded)

Recording tape
: TYPE AC-514
Measurement output
terminal
: Erase head terminal
(CN308 8-Pin)

(Forward side)

1. Playback the test tape VT703 (10KHz) or equivalent.

2. Adjust the head azimuth screw to obtain maximum
output and both output of L / R is in 3dB.

3. Put on the screw lock paint after alignments.

1. Insert the recording tape in deck-B.

2. Starting the recording.

3. Adjust the oscillation frequency to 80KHz+/-3KHz by
core of Oscillation coil of L301.

Antenna coil

Measurement method

AM VT voltage
measurement point

R6

R3

L2

T1

OSC coil

Standard

values

Maximum output

Adjusting

positions

Head azimuth
screw

Adjust the head
azimuth screw only
when the head has
been changed.

80kHz+/-3kHz

Bias coil: L301

Use the High­Impedance Probe for
Frequency counter
input.

Tuner section

Items

AM Tracking
Alignments

AM IFT Alignments

Note: The adjustment of CD section is not required.

Measurement

conditions

Input signal

: 530kHz

Measurement point
: Resistor R3 (AM)
Resistor R6 (FM)
Input signal
: 603kHz

Input signal
: 531kHz

OSC coil adjustment

1.Set the Signal Generator signal to 530KHz the feed to

Loop Antenna.

2.Receiving the signal and the adjust the OSC coil (L2)

obtain the V.T is 1.40V +/-0.05V.

Antenna coil check or adjustment

1.Change the receiving frequency to 603KHz.

2.Adjust the Antenna coil ( L2 ) obtain maximum sensitivity.

(Adjust the SSG output to out of AGC range.)

1. Set the receiving frequency to 531KHz.

2. Feed the 450KHz signal to AM IF input.

3.Adjust the IFT Block T1 obtain to maximum output.
(Adjust the SSG output to out of AGC range.)

Measurement method

Standard

values

V. T
: 1.40V+/-0.05V

Maximum
sensitivity

Maximum output

Adjusting

positions

OSC/Antenna coil
: L2

Adjust the OSC coil
only when the AM coil
block has been
changed.

IFT (T1)

Adjust the IFT only
when the IFT block has
been changed.

1-21

MX-K35V

Flow of functional operation until TOC read

Power ON

Play Key

Slider turns REST
SW ON.

Automatic tuning
of TE offset

Check Point

Confirm that the voltage at the pin1
of CN602 is "H"\"L"\"H".

Tracking error waveform at TOC reading

pin 14 of
IC601(TEO)

Approx

1.8V

VREF

Disc states
to rotate

Approx.3sec

Tracking
servo
off states

Automatic measurement
of TE amplitude and
automatic tuning of
TE balance

Tracking
servo
on states

Disc to be
braked to stop

TOC reading
finishes

500mv/div
2ms/div

Fig.1

Laser ON

Detection of disc

Automatic tuning of
Focus offset

Automatic measurement of
Focus S-curve amplitude

Disc is rotated

Focus servo ON
(Tracking servo ON)

Automatic measurement of
Tracking error amplitude

Automatic tuning of
Tracking error balance

Check that the voltage at the
pin9 of IC601 is + 5V?

Confirm that the Focus error
S-cuve signal at the pin 16 of
IC601 is approx.2Vp-p

Confirm the waveform of
the Tracking error signal.
at the pin 14 of IC601 (R617)
(See fig-1)

1-22

Automatic tuning of
Focus error balance

Automatic tuning of
Focus error gain

Automatic tuning of
Tracking error gain

TOC reading

Play a disc

Confirm the eys-pattern
at the lead of RFO

MX-K35V

Maintenance of laser pickup

(1) Cleaning the pick up lens
Before you replace the pick up, please try to
clean the lens with a alcohol soaked cotton
swab.

(2) Life of the laser diode
When the life of the laser diode has expired,
the following symptoms will appear.

1. The level of RF output (EFM output:ampli
tude of eye pattern) will below.

Is the level of

RFOUT under

1.25V 0.22Vp-p?

YES

O.K

NO

Replace it.

Replacement of laser pickup

Turn off the power switch and,disconnect the
power cord from the AC OUTLET.

Replace the pickup with a normal one.(Refer
to "Removing the CD pickup" on the previous page)

Plug the power cord in,and turn the power on.
At this time,check that the laser emits for
about 3seconds and the objective lens moves
up and down.
Note: Do not observe the laser beam directly.

Play a disc.

Check the eye-pattern.

Finish.

(3) Semi-fixed resistor on the APC PC board
The semi-fixed resistor on the APC printed circuit board which is
attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the
characteristics of the whole optical block, do not touch the semi-fixed resistor.
If the laser power is lower than the specified value,the laser diode is almost worn out, and the laser pickup should
be replaced.
If the semi-fixed resistor would be adjusted when the pickup operates normally,the laser pickup may be damaged
due to excessive current.

1-23

MX-K35V

Description of major ICs

TMP87CM78 (IC701) : System control microprocessor

1. Terminal layout

80 51

50

100 81

2. Pin function

1

VDD
2
3
4
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37

AB

BIAS

RPHD

BC1

uRTS

uDA

uCLK

MPX

PER

SD
SCK
REM

KEY0
KEY1
KEY2

VER

LV L

SFTY

TPA
TPB
VSS

VASS

VAREF

VDD

INH

TEST

XTI
XTO
VSS

XIN

XOUT

RST

uSTB

PRT
FCD
FTU

31

30

1

+5V back up supply

­Deck A/B select control

O

Recording bias on/off control

O

Deck-B head switch control

O

Bias frequency control

O

MPEG RTS input

I

MPEG serial data I/O

I/O

MPEG serial clock input

I

FM stereo indicator input

I

PLL periode output

O

PLL serial data I/O

I/O

PLL serial clock output

O

IR remote signal input

I

Key-0 ADC input

I

Key-1 ADC input

I

Key-2 ADC input

I

Version set

I

Level meter input

I

Safety input

I

Deck-A switch matrix input

I

Deck-B switch matrix input

I

Digita ground

I

ADC reference ground

­ADC reference +5V supply

­+5V back up supply

­INH bit input

I

Test mode / ground

I

32.768kHz X'Tal iput

I

32.768kHz X'Tal output

O

Digita ground

-

8.0MHz X'Tal

I

8.0MHz X'Tal

O

Reset circuit

I

MPEG strobe input

I

Protector input

I

CD power supply control

O

Tuner power supply control

O

38
39
40
41
42
43
44
45
46
47
48
49
50

80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

100

63
79

Symbol I /OPin No. Symbol I/ O Function

PCNT
SHFT

SMUT

SPK

LMUT

ECHO

AHB

KARA

VCK
VDAT
VOL+

VOL-

VKK

G13

P16

DOP

DCL

Reservd

CLS

CW

CCW

CNTT
OPSW
CLSW
UPSW

DWSW

DCNT
TPSW

OPN

DETA

DETB

MOT
SOLB
SOLA

PBM

RECM

G1
P1

System power on/off control

O

Clock shift output

O

System mute cotrol output

O

Speaker mute control output

O

Line output mute control

O

Echo on/off control output

O

Active bass boost control output

O

Karaoke mode on/off control

O

Sound processor serial clock out

O

Sound processor serial data out

O

Volume up jog signal input

I

Volume down jog signal input

I

-35V supply

­VFD grid output

O

VFD plate output

O

MPEG door open

O

MPEG door close

O

Reserved

­Tray close control output

O

Turn table CW output

O

Turn table CCW output

O

Turn table speed control

O

Tray open detect switch input

I

Tray close detect switch input

I

Pickup up detect switch input

I

Pickup down detect switch input

I

Disc count switch input

I

Turn table position SW input

I

Tray open control output

O

Tape-A real rotation detector

I

Tape-B real rotation detector

I

Motor on/off control

O

Deck-B solenoide control

O

Deck-A solenoide control

O

Tape playback muting control

O

Recording mute control

O

Pin No. Function

51
64

1-24

ES3880FL (IC101) : MPEG decoder

MX-K35V

1. Terminal layout

80 ~ 51

100 ~ 81

1 ~ 30

3. Pin function

Pin No.

Symbol I/O Function

1

VDD

2

RAS#

3

DWE#

4~12

13~28

32~39

45~49

55~62

68~79

29
30
31

40
41
42

43
44

50
51
52
53
54

63
64
65
66
67

80
81

DA0~8

DBUS0~15

RESET#

VSS
VDD

YUV0~7

VSYNC
HSYNC

CPUCLK

PCLK2X

PCLK

AUX0~4

VSS

VDD
AUX6
AUX5
AUX7

LD0~7

LWR#

LOE#

LCS3#
LCS1#
LCS0#

LA0~11

VSS

VPP

2. Block diagram

Processor
Interface

31 ~ 50

Serial
Audio
Interface

TDM
Interface

3.3V power supply

­Row address strobe

O

DRAM write enable

O

DRAM multiplexed row and column address bus

O

DRAM data bus

I/O

System reset

I

Ground

-

3.3V power supply

­YUV[7:0] 8-bit video data bus

O

Vertical sync

I/O

Horizontal sync

I/O

RISC and system clock input. CPUCLK is used

I

only if SEL_PLL[1:0] = 00 to bypass PLL.
Doubled 54MHz pixel clock

I/O

27MHz pixel clock

I/O

Auxiliary control pins 4:0

I/O

AUX0 and AUX1 are open collectors.
Ground

-

3.3V power supply

­Auxiliary control pins 6

I/O

Auxiliary control pins 5

I/O

Auxiliary control pins 7

I/O

RISC interface data bus

I/O

RISC interface write enable

O

RISC interface output enable

O

RISC interface chip select

O

RISC interface chip select

O

RISC interface chip select

O

RISC interface address bus

O

Ground

-

5.0V power supply

-

LA[17:0]

LD[7:0]

LCS3#, LCS#[1:0]

LWR#

LOE#

ACLK

ATCLK

AIN
AOUT
ARFS

ATFS

ARCLK

SEL_PLL[1:0]

TDMCLK

TDMDR

TDMFS

RISC

Processor

Serial Audio

Interface

TDM

Interface

Pin No.

82~87

88

89

90
91

92

93
94
95
96
97
98
99

100

Huffman
Decoder

64x32 ROM

32x32 SRAM

Symbol I/O

LA12~17

ACLK
AOUT

SEL_PLL0

ATCLK

ATFS

SEL_PLL1

DA9

DOE#

AIN

ARCLK

ARFS

TDMCLK

TDMDR
TDMFS

CAS#

VSS

DRAM Interface

2Kx32 ROM

512x32 SRAM

MPEG

Processor

Registers

DRAM DMA

Controller

Video Output

On Screen

Display

Function

RISC interface address bus

O

Master clock for external audio DAC

I/O

Audio interface serial data output when

O

selected.
System and DSCK output clock

I

frequency selection at reset time. The
matrix below lists the available clock
frequencies and their respective PLL
bit settings.

SEL_PLL1 SEL_PLL0 DCLK

0 0 Bypass PLL (input mode)
0 1 54MHz (output mode)Default
1 0 67.5MHz (output mode)
1 1 81.0MHz (output mode)

Audio transmit bit clock

I/O

Audio transmit frame sync

O

Refer to the description and matrix for

I

SEL_PLL0 pin 89.
DRAM multiplexed row and column

O

address line 9
DRAM output enable

O

Audio serial data input

I

Audio receive bit clock

I

Audio receive frame sync

I

TDM serial clock

I

TDM serial data receive

I

TDM frame sync

I

DRAM column address strobe

O

Ground

-

RAS#
DA[9:0]
DBUS[15:0]
DOE#
DWE#
CAS#

AUX[7:0]

YUV[7:0]
PCLK2X
PCLK
VSYNC
HSYNC

CPUCLK
RESET#

DRAM

AUX

Screen
Display

Misc.

1-25

MX-K35V

ES3883F (IC102) : Companion chip

1. Terminal layout

80 ~ 51

100 ~ 81

2. Pin function

1

5
6

7
8

9

RESET_B

AUX7/NFD_DI

AUX8/NFD_CLK

SPLL_OUT

AUX9/SQSO

SEL_PLL1

RSTOUT_B

SEL_PLL0

AUX10/SQCK

AUX11/IRQ

AUX12/C2PO

AUX14/SOSI

VSS

NC

VCC

DSC_C

AUX0

DSC_D0

AUX1

DSC_S

AUX2

DCLK

EXT_CLK

MUTE

VCC

MCLK

TWS

TSD

TBCK

RWS

VSS

NC

VSS

VCC

RSD

RBCK

SER_IN

AUX13/SP

AUX15/IR

VSSAA

VCM

VREFP

2~4

10

11
12

13
14
15
16
17
18
19

20
21
22
23

24

25,26

27~30

31
32
33

34
35
36
37

38
39

40
41
42

43

31 ~ 50

1 ~ 30

Ground

­No connect

­Voltage supply, 5V

­Clock for programming to access internal

I

registers
Servo forward or general-purpose I/O

I/O

Data for programming to access internal

I/O

registers
Servo reverse or general-purpose I/O

I/O

Strobe for programming to access internal

I

registers
Servo LDON or general-purpose I/O

I/O

DCLK is the MPEG decoder clock.

O

EXT_CLK is the external clock.

I

EXT_CLK is an input during bypass PLL mode.
Video reset (active-low)

I

I/O

Servo BRKM/sense or general-purpose I/O / VFD_DI

O

Audio mute

-

Voltage supply, 5V

I

Audio master clock

I/O

Servo mute/open or general-purpose I/O / VFD_CLK

I

TWS is the transmit audio frame sync.

O

SPLL_OUT is the select PLL output.

I/O

Servo SQSO or general-purpose I/O

I

Transmit audio data input

I

Transmit audio bit clock

O

RWS is the receive audio frame sync.

I

SEL_PLL[1:0] select the PLL clock frequency for
the DCLK output.

SEL_PLL1 SEL_PLL0 DCLK

0 0 Bypass PLL (input mode)

0 1 27MHz (output mode)

1 0 32.4MHz (output mode)

1 1 40.5MHz (output mode)

O

Reset output (active-low)

-

Ground

-

No connect

-

Ground

-

Voltage supply, 5V

O

RSD is the receive audio data input.

I

SEL_PLL0 and SEL_PLL1 select the PLL clock
frequency for the DCLK output. Refer to the
table in the definition for pin 23.

I/O

Servo SQCK or general-purpose I/O

I/O

ES3880 IRQ or interrupt output or general-purpose I/O

I/O

CD C2PO or interrupt input or general-purpose I/O

O

RBCK is the receive audio bit clock.

I

SER_IN is the serial input DSC mode:
0 = Parallel DSC mode
1 = Serial DSC mode

I/O

Serial interrupt/CD-mute or general-purpose I/O

I/O

Servo SCOR (SOSI), interrupt input,
or general-purpose I/O

I/O

Interrupt input or general-purpose I/O

-

Audio analog ground

I

ADC common mode reference (CMR) buffer output.
CMR is approximately 2.25V. Bypass to analog ground
with 47uF electrolytic in paralell with 0.1uF.

I

DAC and ADC maximum reference. Bypass to video
CMR (VCMR) with 10uF in parallel with 0.1uF.

44

49
50
51
52

Symbol I/OPin No. Symbol I/O Function

VCCAA

AOR+,AOR-

AOL-,AOL+

MIC1
MIC2

VSSAA

VREF

Analog VCC, 5V

I

Right channel output

O

Left channel output

O

Microphone input 1

I

Microphone input 2

I

Audio analog ground

­Internal resister divider generates CMR

I

Pin No. Function

45,46
47,48

voltage.
Bypass to analog ground with 0.1uF.
DAC and ADC minimum reference.

53

VREFM

I

Bypass to VCMR with 10uF in parallel
with 0.1uF.
Full-scale DAC current adjustment

54
55

56,57

58

59,60

61

RSET

COMP

VSSAV

CDAC

VCCAV

YDAC

I

Compensation pin

I

Video analog ground

­Modulated chrominance output

O

Video VCC, 5V

­Y luminance data bus for screen video

O

port
Video analog ground

62,63

64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81

VSSAV

VDAC
ACAP

VCC

AUX6/VFD_DO

AUX5
AUX4
AUX3

XOUT

VSS
VCC

XIN

VSS

NC
VSS
VCC

PCLK
2XPCLK
DSC_D7

­Composite video output

O

Audio CAP

I

Voltage supply, 5V

­Servo XLAT or general-purpose I/O / VFD_DO

I/O

Servo data or general-purpose I/O

I/O

Servo CCW/close or general-purpose I/O

I/O

Servo CW/limit or general-purpose I/O

I/O

Crystal output

O

Ground

­Voltage supply, 5V

­27MHz crystal input

I

Ground

­No connect

­Ground

­Voltage supply, 5V

-

13.5MHz pixel clock

I/O

27MHz(2 times pixel clock)

I/O

Data for programming to access internal

I/O

registers
Horizontal sync (active-low)

82
83

HSYNC_B

DSC_D6

O

Data for programming to access internal

I/O

registers
Vertical sync (active-low)

84
85

VSYNC_B

DSC_D5

O

Data for programming to access internal

I/O

registers
YUV data bus for screen video port

86~89

90
91
92
93

YUV7~4

VCC
VSS

YUV3

DSC_D4

I

Voltage supply, 5V

­Ground

­YUV data bus for screen video port

I

Data for programming to access internal

I/O

registers
YUV data bus for screen video port

94
95

YUV2

DSC_D3

I

Data for programming to access internal

I/O

registers
YUV data bus for screen video port

96
97

YUV1

DSC_D2

I

Data for programming to access internal

I/O

registers
YUV data bus for screen video port

98
99

YUV0

DSC_D1

I

Data for programming to access internal

I/O

registers
Ground

100

VSS

-

1-26

BA15218 / BA15218F (IC102 / IC852) : Dual operational amplifier

1. Terminal layout & block diagram

MX-K35V

OUT1 1

-IN1 2

8 Vcc

7 OUT2

1

+IN1 3

6 -IN2

2

G 4

5 +IN2

BA3837 (IC103) : MIC Mixer

1. Terminal layout & block diagram

VCC

1

MIC

LOUT

FK

TK

LIN

BIAS

GND

+

2

-

-

3

4

5

6

7

8

+

SW2

SW1

L-R

L

+

-

+

-

+

L+R

LOGIC

­+

+

-

R

­+

2. Pin function

10
11
12
13
14
15
16

Symbol

VCC

1
2

LOUT

3
4
5
6

BIAS

7

GND

8
9

ROUT

MIC

FK
TK

LIN

RIN

LP
LP
LP

A
B

C

I/O

Power supply

­Microphone mixing input

I

Channel L output

O

Non connect

­Non connect

­Channel L input

I

Signal bias

I

Connect to GND

­Channel R input

I

Connects to LPF time constant element

O

Connects to LPF time constant element

O

LPF outpout

O

Channel R output

O

Mode select input A

I

Mode select input B

I

Mode select input C

I

C

16

B

15

A

14

ROUT

13

12

LP

11

LP

LP

10

9

RIN

Pin No.

Function

BU9253FS (IC851) : Low pass filter & echo mixer

2. Pin function1. Terminal layout & block diagram

GND

ECHO VR

BIAS

DAINTO

DAINTI

DALPFI

DALPFO

MIXO

Pin No.

16

A/D

- +

15

14

13

12

11

10

9

CR

MUTE

VCC

ADINTI

ADINTO

ADLPFO

ADLPFI

MIXI

1

2

3

4

D/A

5

6

- +

7

8

MIX

OSC

COUNTER

SRAM

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

Symbol

GND

ECHO VR

BIAS

DAINTO

DAINTI

DALPFI

DALPFO

MIXO

MIXI

ADLPFI
ADLPFO
ADINTO

ADINTI

VCC

MUTE

CR

I/O

Connect GND

­Echo level control

I

Analog part DC bias

­DA side integrator output

O

DA side integrator intput

I

DA side LPF input

I

DA side LPF output

O

Mix AMP output for original tone& echo tone

O

Mix AMP input pin for original tone

I

AD side LPF input

I

AD side LPF output

O

AD side integrator output

O

AD side integrator input

I

Power supply

­Mute control signal input

I

CR pin for oscillator

-

Function

1-27

MX-K35V

PST9119 (IC703) : Reset IC

1. Terminal layout 2. Block diagram

1

OUT

2

VDD

3

VSS

123

STK402-070 (IC151) : 2-ch audio power amplifier

1. Terminal layout 2. Block diagram

PRE-VCC

VDD

OUT

VSS

VCC

IN 1

NF 1

SUB G

TA2092N (IC603) : Power driver IC for CD

1. Terminal layout
Block diagram

&

1

PWGND

2

OUT(-)1

3

PVCC1

4

OUT(+)1

5

VIN1

6

VRI

7

VCI

8

VIN2

9

OUT(+)2

10

PVCC2

11

OUT(-)2

12

PWGND

24

23

22

21

20

19

18

17

16

15

14

13

PWGND

OUT(-)4

PVCC4

OUT(+)4

VIN4

SVCC

SGND

VIN3

OUT(+)3

PVCC3

OUT(-)3

PWGND

2. Pin function

PIN

Symbol

PWGND

OUT(-)1
PVCC1

OUT(+)1

VIN1

VRI
VCI

VIN2

OUT(+)2

PVCC2
OUT(-)2

PWGND

I/O

-

O

-

O

I
I

O

I

O

-

O

-

No.

1
2
3
4
5
6
7
8

9
10
11
12

Power ground
Inverted output for CH1
Supply terminal of output stage for CH1
Non-inverted output for CH1
Input for CH1
Input reference voltage
Output reference voltage
Input for CH2
Non-inverted output for CH2
Supply terminal of output stage for CH2
Inverted output for CH2
Power ground

BIAS

PRE-VSS

Function

OUT 1-

OUT 1+

OUT 2-

OUT 2+

PIN

No.
13
14
15
16
17
18
19
20
21
22
23
24

Symbol

PWGND
OUT(-)3

PVCC3

OUT(+)3

VIN3
SGND
SVCC

VIN4

OUT(+)4

PVCC4
OUT(-)4
PWGND

VSS

IN 2

NF 2

I/O

Power ground

­Inverted output for CH3

O

Supply terminal of output stage for CH3

­Non-inverted output for CH3

O

Input for CH3

I

Supply terminal of small signal ground

­Small signal ground

­Input for CH4

I

Non-inverted output for CH4

O

Supply terminal of output stage for CH4

­Inverted output for CH4

O

Power ground

-

Function

1-28

TA2153FN (IC601) : RF amplifier for digital servo

1. Terminal layout

2. Block diagram

MX-K35V

1

VCC

FNI
FPI
TPI
TNI

MDI

LDO

SEL

TEB

2VRO

TEN

TEO

SBAD

2
3
4
5
6
7
8

9
10
11
12
13
14
15

RFAGC

GMAD

3. Pin function

PIN No.

Symbol

1

VCC

2

RFAGC

3

GMAD

4

FNI

5

FPI

6

TPI

7

TNI

8

MDI

9

LDO

10

SEL

30

RFN2

29

GND

28

RFO

27

AGCIN

26

GVSW

25

RFGO

24

RFRPIN

23

PKC

22

RFCT

21

STC

20

RFRP

19

VRO

18

SEB

17

FEN

16

FEO

I/O

Power supply input terminal

­RF amplitude adjustment control signal input terminal. Controlled by 3-PWM signals. (PWM carrier = 88.2kHz)

I

Open loop gain adjustment terminal for AGC amplifier

I

Main beam I-V amplifier input terminal

I

Main beam I-V amplifier input terminal

I

Sub beam I-V amplifier input terminal

I

Sub beam I-V amplifier input terminal

I

Monitor photo diode amplifier input terminal

I

Laser diode amplifier input terminal

O

Laser diode control signal input terminal and APC circuit ON/OFF control sugnal terminal

I

RFN229GND28RFO27AGCIN26GVSW25RFGO24RFRPIN23PKC22RFCT21STC20RFRP19VRO18SEB17FEM16FEO

30

­+

AGC Amp.

+

­+

-

+

-

I-I

1

2

3

4

5

FPI6TPI

RFAGC

GMAD

FNI

VCC

PEAK

BOTTOM

+

-

I-I

7

TNI

+

-

+

-

-

+

-

+

-

SW3

-

+

SW2

DET.

3 STATE

SW1

8

9

10

11

MDI

SEL

TEB

LDO

+

+

12

-

2VRO

­+

-

+

-

+

13

14

TEN

TEO

Function

+

15

-

SBAD

SEL level APC circuit LDO Detect frequency
GND OFF Connected to Vcc through resistor (1kohm) Low
Hiz ON Control signal output Low
Vcc ON Control signal output High

11
12
13
14
15
16
17
18

19
20
21
22
23
24
25
26

27
28
29
30

TEB

2VRO

TEN
TEO

SBAD

FEO
FEN
SEB

VRO

RFRP

STC

RFCT

PKC

RFRPIN

RFGO
GVSW

AGCIN

RFO

GND

RFN2

I

Tracking error balance adjustment signal input terminal. Controlled by 3-PWM signals. (PWM carrier = 88.2kHz)

O

Reference voltage (2VRO) output terminal 2RVO = 4.2V when Vcc = 5V

I

TE amplifier negative input terminal

O

TE error signal output terminal

O

Sub beam adder signal output terminal

O

Focus error signal output terminal

I

FE amplifier negative input terminal

I

RFRP output circuit switching terminal
SEL level Bottom detection Peak detection
GND ON ON
Vcc OFF ON

O

Reference signal (VRO) output terminal

O

Track count signal output terminal

I

Time constant adjustment terminal for bottom detection

O

RFRP signal center level output terminal

I

Time constant adjustment terminal for peak detection

I

Input terminal for track count signal output amplifier

O

Output terminal for RF signal amplitude adjustment amplifier

I

Amplifier (AGC, FE, TE) gain switching terminal
GVSW Mode
GND CD-RW
Hiz Normal
Vcc Normal

I

Input terminal for RF signal amplitude adjustment amplifier

O

Output terminal RF signal amplifier

-

Ground terminal

I

Input terminal for RF signal amplifier

1-29

MX-K35V

TA8189 (IC401) : REC/PB amplifier

1. Terminal layout 2. Block diagram

NF1

EQ1

GND

1

24
23
22
21
20
19
18
17
16
15
14
13

CH2_A
CH2_B
NF2
EQ2
PREOUT2
A/B_SW
VCC
CG
REC_OUT2
REC_NF2
REC_IN2
ALC

2
3
4
5
6
7
8

9
10
11
12

23CH2_B

24CH2_A

1CH1_A

2CH1_B

CH1_A
CH1_B

PREOUT1

MIX_OUT

GND1

EQSW

REC_OUT1

REC_NF1

REC_IN1

3. Pin function

Pin
No.

Symbol

I/O

1 CH1_A I Input for playback amp. (Ch1): A cassette

(PB)

2 CH1_B I Input for playback amp. (Ch1): B cassette

(REC/PB)
3 NF1 I NF terminal for playback amp.
4 EQ1 O Metal output for playback amp.
5 PREOUT1 O Output terminal for playback amp.
6 MIX_OUT O Mixing output
7 GND1 - Ground

8 EQSW I Metal/Normal mode select switch

REC_OUT1

9

O Output for recording amp.
10 REC_NF1 I NF terminal for recording amp.
11 REC_IN1 I Input for recording amp.

12 GND1 - Ground terminal

Function

NF2

22

3 54 6 7 8

NF1

­Ch2

+

+

Ch1

-

Pin
No.

EQ2

EQ1

PREOUT2

2021 19

PREOUT1

Symbol

A/B_SW

A/B

ref1

V

MIX_OUT

18

VCC

ref

I

GND1

I/O

13 ALC I ALC filter terminal

14 REC_IN2 I Input for recording amp.

15 REC_NF2 I NF terminal for recording amp.
16

REC_OUT2

O Output for recording amp.
17 CG O Charge detection terminal
18 VCC - Power supply terminal
19 A/B_SW I REC amp. Select switch (A cassette/B

20 PREOUT2 O Output terminal for playback amp.
21 EQ2 O Metal output for playback amp.
22 NF2 I NF terminal for playback amp.
23 CH2_B I Input for playback amp. (Ch2): B cassette

24 CH2_A I Input for playback amp. (Ch2): A cassette

CG

17

ref2

V

M/N

EQSW

cassette)

(REC/PB)

(PB)

REC_OUT2

16

9

REC_OUT1

Ch2

Ch1

REC_NF2

15

-

+

+

-

10

14 REC_IN2

13 ALC

ALC

12 GND

11 REC_IN1

REC_NF1

Function

TA8409S (IC604, IC605) : Motor driver

1. Terminal layout 2. Truth table

IN1

123456789

VS

OUT1

VR

IN1

1-30

IN2

VCC

OUT2

NC

GND

INPUT OUTPUT MODE

IN2

OUT1

0

0

1

0

0

1

1

1

OUT2

H

L

L

L

H

L

MOTOR

STOP

CW/CCW

CCW/CW

BRAKE

TA2104N (IC1) : 1chip AM/FM, MPX tuner system

1. Terminal layout 2. Pin function

RFGND

FM_RFIN

AM_FIL

MIX_OUT

VCC

AM_IFIN

FM_IFIN

GND
AGC

QUAD

R_OUT

L_OUT

10
11
12

PIN

Symbol

1
2
3
4
5
6
7
8
9

24

FM_RFOUT

23

RFVCC

22

AM_RFIN

21

FM_OSC

20

AM_OSC

19

OSC_OUT

18

ST_IND

17

IF_REQ

16

DET_OUT

15

MPX_IN

14

LPF2/M_ST

13

LPF1/BAND

No.

1
2
3
4
5
6
7
8

9
10
11

RFGND

FM_RFIN

AM_FIL

MIX_OUT

AM_IFIN
FM_IFIN

R_OUT

12

VCC

GND
AGC

QUAD

L_OUT

I/O

­I
I

O

­I
I

­I

I
O
O

Function

Ground terminal for RF
Input of FMRF signal
AM low frequency cut
Output of FM/AM RF mix
Power supply terminal
Input of AMIF signal
Input of FMIF signal
Ground terminal
AGC voltage input terminal
OSC terminal for FM DET.
Output R-channel
Output L-channel

TC9257P (IC2) : PLL frequency synthesizer

1. Terminal layout

1

XT

2

XT

DATA

OT-1
OT-2
OT-3
OT-4

3
4
5
6
7
8
9

10

PERIOD

CLOCK

I/O-5 / CLK

20

DO2

19

DO1

18

I/O-7

17

I/O-8 / NF1

16

I/O-9 / NF2

15

GND

14

FMIN

13

AMIN

12

VDD

11

I/O-6

2. Pin function

PIN

Symbol

No.

1

XT

2

XT

3

PERIOD

4

CLOCK

5

DATA

6

OT-1

7

OT-2

8

OT-3

9

OT-4

10

I/O-5/CLK

11

I/O-6

12

VDD

I/O

Crystal oscillator pins

I

Crystal oscillator pins

O

Period signal input

I

Clock signal input

I

Serial data input/output

I/O

General-purpose output port

O

General-purpose output port

O

General-purpose output port

O

General-purpose output port

O

General-purpose I/O port

I/O

General-purpose I/O port

I/O

Power supply pin

-

PIN

Symbol I/O Function

No.

13

LPF1/BAND

14

LPF2/M_ST

15

MPX_IN

16

DET_OUT

17

IF_REQ

18

ST_IND

19

OSC_OUT

20

AM_OSC

21

FM_OSC

22

AM_RFIN

23

RFVCC

24

FM_RFOUT

Function Function

PIN

No.

13
14
15
16

I

FM/AM switch

I

Stereo/monoral switch

I

Multiplex signal input

O

AM/FM detection output

O

IF out/REQ out

O

Stereo indicator output

O

PLL data bus for FM or AM

-

AM local oscillation circuit

-

FM local oscillation circuit

I

Input of AMRF signal

-

Power supply teminal for RF

O

Output of FMRF signal

Symbol I/O

AMIN
FMIN

GND
I/O-9

I/O

NF2

Programmable counter input

I

Programmable counter input

I

Ground pin

-

General-purpose I/O port
General-purpose counter frequency

I

measurement input

17

I/O-8

NF1

General-purpose I/O port

I/O

General-purpose counter frequency

I

measurement input

18
19
20

I/O-7
DO1
DO2

General-purpose I/O port

I/O

Phase comparator output

O

Phase comparator output

O

MX-K35V

3. Block diagram

AMP

FMIN

14

AMIN

13

XT

2

XT

1

DATA

5

CLOCK

4

PERIOD

3

FM

L

1/2

FMHHF

OSC

CIRCUIT

2 MODULUS
PRESCALER

FM MODE LF

OSC

1ms

ADDRESS

DECODER

OUTPUT PORT

OT-1

OT-2

PSC

4bit SWALLOW

COUNTER

12bit PROGRAMMABLE COUNTER

4

REFERENCE COUNTER

24bit REGISTER

24bit SHIFT REGISTER

4

TEST

24bit REGISTER

4 4

UNIVERSAL COUNTER CONTROL

OT-4

9876

OT-3

OT-4

POWER ON

RESET

12

15

24 22

20bit BINARY COUNTER

XT

5

10

1ms

VDD

12

MAX

4

RESET

PHASE

COMPARATOR

UNLOCK

5

GATE

GND

15

TRI-STATE

BUFFER

TRI-STATE

BUFFER

OT4

I/O PORT

AMP

AMP

19

20

10

11

16

17

18

DO1

DO2

I/O-5/CLK

I/O-6

I/O-9/NF2

I/O-8/NF1

I/O-7

1-31

MX-K35V

TC9462F (IC602) : Digital servo single chip processor

1. Terminal layout

80 51

50

100 81

2. Pin function

1

TEST0

2

HSO

3

UHSO

4

EMPH

5

LRCK

6

VSS

7

BCK

8

AOUT

9

DOUT

10

MBOV

11

12

13

14
15
16
17
18
19

20
21

22

IPF

SBOK

CLCK

VDD

VSS

DATA
SFSY
SBSY
SPCK

SPDA
COFS

MONIT

31

30

1

Pin No. Function

Test mode terminal. Normally, keep at open

I

Playback speed mode flag output terminal.

O

UHSO HSO PLAYBACK SPEED

O

23
24

H H Normal
H L 2 times
L H 4 times
L L -

Subcode Q data emphasis flag output terminal.

O

25
26
27

28
Emphasis ON at "H" level and OFF at "L" level.
The output polarity can invert by command.
Channel clock output terminal. (44.1kHz)

O

L-ch at "L" level and R-ch at "H" level. The

29

30
output polarity can invert by command.
Digital ground terminal.

­Bit clock output terminal. (1.4112MHz)

O

Audio data output terminal.

O

Digital data output terminal.

O

Buffer memory over signal output terminal.

O

Over at "H" level.
Correction flag output terminal.

O

At "H" level, AOUT output is made to correction
impossibility by C

O

Subcode Q data CRCC check adjusting result

2

correction processing.

output terminal. The adjusting result is OK at
"H" level.

I/O

Subcode P

W data readout clock input/output
terminal. This terminal can select by command
bit.

-

Digital power supply voltage terminal.

-

Digital ground terminal.

O

Subcode P

O

Playback frame sync signal output terminal.

O

Subcode block sync signal output terminal.

O

Processor status signal readout clock output

W data output terminal.

31
32
33
34

35
36
37
38
39
40
41
42
43
44
45

terminal.

O

Processor status signal output terminal.

O

Correction frame clock output terminal.
(7.35kHz)

O

Internal signal (DSP internal flag and PLL
clock) output terminal. Selected by command.
This terminal output the text data with serial

46

47
48
49
50

by command.

Symbol I /OPin No. Symbol I / O Function

VDD

TESIO0

P2VREF

HSSW

ZDET

PDO

TMAXS

TMAX

LPFN
LPFO

PVREF

VCOREF

VCOF

AVSS

SLCO

RFI

AVDD

REFCT

RFZI

RFRP

FEI

SBAD

TSIN

TEI

TEZI
FDO
TRO

VREF

Digital power supply voltage terminal.

­Test input/output terminal. Normally, keep at

I

"L" level. The terminal that inputted the clock
for read of text data by command.
PLL double reference voltage supply terminal.

­2/4 times speed at "V

O
O

1 bit DA converter zero detect flag output

REF

" voltage.

terminal.
Phase difference signal output terminal of

O

EFM signal and PLCK signal.
TMAX detection result output terminal.

O

Selected by command bit (TMPS).
TMAX detection result output terminal.

O

Selected by command bit (TMPS).
DIFFERENCE RESULT TMAX OUTPUT
Longer than fixed freq. "P2V

REF

"
Shorter than fixed freq. "Vss"
Within the fixed freq. "HiZ"

LPF amplifier inverting input terminal for PLL.

I

LPF amplifier output terminal for PLL.

O

PLL reference voltage supply terminal.

­VCO center frequency reference level terminal.

I

Normally, keep at "PV

O

VCO filter terminal.

-

Analog ground terminal.

O

Data slice level output terminal.

I

RF signal input terminal.

-

Analog power supply voltage terminal.

I

RFRP signal center level input terminal.

I

RFRP zero cross input terminal.

I

RF ripple signal input terminal.

I

Focus error signal input terminal.

I

Sub-beam adder signal input terminal.

I

Test input terminal. Normally, keep at "V

REF

" level.

REF

"

level.

I

Tracking error signal input terminal.
Take in at tracking servo on.

I

Tracking error zero cross input terminal.

O

Focus servo equalizer output terminal.

O

Tracking servo equalizer output terminal.

-

Analog reference voltage supply terminal.

1-32

MX-K35V

51

52
53
54

55

56

57

58

59

60

61

62
63
64
65
66
67

68

69
70

RFGC

TEBC

FMO
FVO

DMO

2VREF

SEL

FLGA

FLGB

FLGC

FLGD

VDD
VSS

IO0
IO1
IO2
IO3

DMOUT

CKSE
DACT

71
72

73
74

75

76
77
78

79

80

81
82
83

84
85
86
87
88
89
90
91
92
93
94
95
96
97

98
99

100

Symbol I /OPin No. Symbol I / O Function

TESIN

TESIO1

VSS

PXI

PXO

VDD

XVSS

XI

XO

XVDD

DVSR

RO

DVDD

DVR

LO

DVSL
TEST1
TEST2
TEST3

BUS0
BUS1
BUS2
BUS3

VDD
VSS

BUCK

CCE

TEST4

TSMOD

RST

Pin No. Function

RF amplitude adjustment control signal output

O

terminal.
Tracking balance control signal output terminal.

O

Feed equalizer output terminal.

O

Speed error signal or feed search equlizer

O

output terminal.
Disk equalizer output terminal. (PWM carrier=

O

88.2kHz for DSP, Synchronize to PXO)
Analog double reference voltage supply

­terminal.
APC circuit ON/OFF indication signal output

O

terminal. At the laser on time, UHF = L at "HiZ"
level and UHF = H at "H" level.
Extermal flag output terminal for internal

O

signal. Can select signal from TEZC, FOON,
FOK and RFZC by command.
Extermal flag output terminal for internal

O

signal. Can select signal from DFCT, FOON,
FMON and RFZC by command.
Extermal flag output terminal for internal

O

signal. Can select signal from TRON, TRSR,
FOK and SRCH by command.
Extermal flag output terminal for internal

O

signal. Can select signal from TRON, DMON,
HYS and SHC by command.
Digital power supply voltage terminal.

­Digital ground terminal.

­General I/O terminal. Can change over input

I/O

port or output port by command. At the input

I/O

mode time can readout a state of terminal (H/L)

I/O

by read command. At the output mode time can

I/O

control a state of terminal (H/L/HiZ) by
command.
This terminal controls IO0

I

At "L" level time, IO0, 1 out feed equalizer
signal of 2-state PWM, IO2,3 out disk equalizer
signal of 2-state PWM.

I

Normally, keep at open.

I

DAC test mode terminal. Normally, keep at
open.

IO3 terminal.

Test input terminal. Normally, keep at "L" level.

I

Test input/output terminal. Normally, keep at

I

"L" level.
Digital ground terminal.

­Crystal oscillator connecting input terminal for

I

DSP. Normally, keep at "L" level.
Crystal oscillator connecting output terminal

O

for DSP.
Digital power supply voltage terminal.

­Oscillator ground terminal for system clock.

­Crystal oscillator connecting input terminal for

I

system clock.
Crystal oscillator connecting output terminal

O

for system clock.
Oscillator power supply voltage terminal for

­system clock.
Analog ground terminal for DA converter.(R-ch)

­R channel data forward output terminal.

O

Analog supply voltage terminal for DA

­converter.
Reference voltage terminal for DA converter.

­L channel data forward output terminal.

O

Analog ground terminal for DA converter.(L-ch)

­Test mode terminal. Normal, keep at open.

I

Test mode terminal. Normal, keep at open.

I

Test mode terminal. Normal, keep at open.

I

Micon interface data input/output terminal.

I/O
I/O
I/O
I/O

Digital power supply voltage terminal.

­Digital ground terminal.

­Micon interface clock input terminal.

I

Command and data sending/receiving chip

I

enable signal input terminal.
The bus line becomes active at "L" level.
Test mode terminal. Normal, keep at open.

I

Local test mode selection terminal.

I

Reset signal input terminal. Reset at "L" level.

I

1-33

MX-K35V

TDA7440D (IC101) : Audio processor

1. Terminal layout 2. Block diagram

4

RIN3
RIN2
RIN1

MUXO-L

IN(L)

MUXO-R

IN(R)

BIN(R)

BOUT(R)

BIN(L)

1
2
3
4

LIN1

5

LIN2 VS
LIN3

6
7

LIN4

8
9
10
11
12
13
14

28

RIN4

27

LOUT

26

ROUT

25

AGND

24

CREF

23

SDA

22

SCL

21

DGND

20

TRE(R)

19
18

TRE(L)

17

PS1

16

LP

15

BOUT(L)

LIN1

LIN2

LIN3

LIN4

RIN1

RIN2

RIN3

RIN4

5

6

7

3

2

1

28

4C16256 (IC103) : 4MB EDO-RAM

1. Terminal layout

2. Pin function

100K

100K

100K

100K

100K

100K

100K

100K

G

0/30dB

2dB STEP

G

INPUT MULTIPLEXER

+ GAIN

BASS

BASS

R

B

R

B

BOUT(L)

BOUT(R)BIN(R)

MUXO-L IN(L)

8 9 18 14 15

VOLUME

VOLUME

10 11 19 12 13 23

MUXO-R IN(R)

TRE(L)

BIN(L)

TREBLE

I2CBUS DECODER + LATCHES

TREBLE

TRE(R)

SPKR ATT

LEFT

SPKR ATT

RIGHT

V

REF

SUPPLY

CREF

27

LOUT

21

SCL

22

SDA

20

DGND

26

ROUT

24

VS

25

AGND

1

VCC

VCC

NC
NC

WE

RAS

NC

VCC

2

D0

3

D1

4

D2

5

D3

6
7

D4

8

D5

9

D6

10

D7

11
12
13
14
15
16

A0

17

A1

18

A2

19

A3

20

GND

40

D15

39

D14

38
37

D13
D12

36

GND

35
34

D11
D10

33
32

D9
D8

31

NC

30

CASL

29

CASH

28

OE

27

A8

26

A7

25
24

A6

23

A5

22

A4

21

GND

27C020 (IC104) : 2MB PROM

1. Terminal layout

1

VPP

A16
A15
A12

GND

2
3
4
5

A7

6

A6

7

A5

8

A4

9

A3

10

A2

11

A1

12

A0

13

D0

14

D1

15

D2

16

VCC

32

PGM

31

A17

30

A14

29

A13

28
27

A8

26

A9
A11

25

OE

24

A10

23

CE

22

D7

21

D6

20
19

D5
D4

18

D3

17

PIN No. Symbol Function

1,6,20

2~5,7~10,

VCC

D0~D15

I/O

Power supply terminal

­Data input/output

I/O

31~34,36~39

11,12,15,30

13
14

16~19,22~26

21,35,40

27
28
29

NC

WE

RAS

A0~A8

GND

OE

CASH

CASL

Not used

­Write enable terminal

I

Row address strobe terminal

I

Address input

I

Ground teminal

­Output enable terminal

I

Upper column address strobe terminal

I

Lower column address strobe terminal

I

2. Pin function

PIN No. Symbol Function

1

2~12

13~15

16

17~21

22
23
24

25~30

31
32

VPP

A16,A15,A12,A7~A0

D0~D2

GND

D3~D7

CE

A10

OE

A11,A9,A8,A13,A14,A17

PGM

VCC

I/O

Power supply terminal

­Address input

I

Data input/output

I/O

Ground terminal

­Data input/output

I/O

Chip enable terminal

I

Address input

I

Output enable teminal

I

Address input

I

Program strobe

I

Power supply terminal

-

1-34

Wiring connections

Color codes are shown below.

1Brown
2 Red
3 Orange
4 Yellow
5 Green
6 Blue
7 Violet
8Gray
9 White
0Black

Microphone
amplifier board

FW852

1

3-5305-028-01-07

3-5316-010-01-07

Spindle motor

Cassette deck

main motor

Cassette mechanism

Cassette board

P.B. head bottom sideA REC/P.B. head bottom sideB

3-5315-017-01-07

L2

0 29

1

+

-

+

3-5400-594-01-00

Card wire

1

-

912 4 9 6 2

CN306

MX-K35V

Control/FL board

Card wire

CN703

1

3-5322-018-01-07

Card wire

A

3-5400-595-01-00

0

2

0

9

2

90

1

CN308

L301

CN307

CN302

0

2

94

6

1

Parallel wire

CN702

1

FW702-2

1

1

CN701

1

1

FW701

FW701

FL tube

3-5309-020-02-07

CD

B

­C1117

pickup

Feed motor

Video & CD board

CN1101

1

3-5325-030-01-07

Card wire

AC
input

6

1

TB901

Voltage selector board

0
1

TB902

TRANS

Power transformer board

6
2
3
4

1

FW951

1

CD pickup unit

6

4

3-5400-569-01-00

1

B

A

3-5309-019-01-07

CN601

FW1051

IC151

1

6
4

1

CN602

Card wire

Head phone board

POWER IC

Power amplifier board

1

J31

CN903

CN951B

CN951A

1

CN901

Parallel wire

1

0

CASS.

GND

T1

1

3-5304-037-01-07

CN902A
CN902B
CN902C

Main board

1

CN606

1

CN303

1

CN604

1

Card wire

3-5311-019-01-07

3-5305-030-01-07

Turn table
motor

Turn table
motor board

CN603

9

9/2

1

CN301

CN305

1

1

9

9/69/4

9/0

Table pos.
board

W608

1

Tray motor

18

3-5400-538-01-00

9/2

W608

W607

CN605

1

3-5322-018-01-07

Active bass ex.
switch board

3-5400-593-01-00

9

9/2

+

81

1

1

W607

Switch board

3-5302-010-01-07

1

FW702-1

3-5311-027-01-07

9/0

9/4

9

1

1

W603

W606

Pickup switch
board

3-5303-018-01-07

Parallel wire

3-5302-012-02-07

1

1

W606

Tray switch
board

Disc count board

9/29/6

1-35

Block diagrams

Main

Deck-A

5

4

3

2

PB-Head

To
Deck-B
R/P-Head

To
Cassette
Mechanism

To
CD Pickup

To
Spindle
Sleed

CN307

CN308

CN305

CN601

CN602

Control/FL

VFD

Q303

Bias OSC

Q309~314

Mech

Control

IC601

TA2153F

CD RF Amp

IC603

TA2092N

4CH Driver

IC701

TMP87CK78-XXX

CN702

To Main To Main

Q401,501
Rec Mute

To Power Amp

CN701

MPU

IC401

TA8189N

Tape PB/Rec

Q402,502

PB Mute

IC602

TC9462F

Digital Servo

CN703

CN606

To MPEG

FW701

Switch

IR Sensor

FW701

TC9257P

IC702

Jog

Key's

IC2

PLL

CN604

To Changer

FM/AM Ant.

JA302

IC1

TA2104N

AM/FM-MPX

Tuner

IC605

TA8409S

Motor Driver

IC604

TA8409S

Motor Driver

CN603

To Changer

To
Main

JA301

AUX In

Tuner

Tape

VCD

CN1101

4C16256

4MB EDO-RAM

AUX

CD

IC1101

ES3880FL

MPEG

Decorder

IC1103

To Mic/Echo

CN306

IC103

BA3837

V.Cancel

IC101

TDA7440D

Vol,Tone,

Selector

IC1102

ES3883

Companion

Chip

IC1104

27C020

2MB PROM

JA303

Line-Out

Q101

AHB

IC102

BA15218

AHB

Q201

AHB

IC1105

AMS1117

3.3V Reg

To
Power Amp

CN303

To
Control

CN301

To
Control

CN302

J1101

Video Output

To
Main

To
Control

To
Main

Mic Jack

To
Power Amp

Power amplifier

Q151

Mute

CN901

Q251

Mute

Protect.

Control

Circuit

CN902

Power supply

Transformer

FW951

Selector

ECHO

JA851

Q851

ALC

Head phone

FW1051

T951

Voltage

J1053

2CH Power Amp

STK402-070

Power Supply

IC852

BA15218F

Pre/ALC

IC851

BU9253FS

Digital Echo

Phone Jack

To Headphone

IC151

Rectifire.

Circuit

AC Main

CN903

Mic VR

VR840

Q852

LPF

Speaker
output

J901

To
Primary

CN951

To
Main

FW852

MX-K35V

1

AB CD E F G

2-1

Standard schematic diagrams

<Main section>

Head amplifier, tuner and audio section

Head amplifer section Cassette mechanism section

PB-HD

TAPE.B

TAPE.A

L.CH.

CN307

1

1

2

2

3

3

PB-HD

RP-HD

RP-HD

E-HD

CN307a

R.CH.

R.CH.

L.CH.

1
2
3
4
5
6
7
8

ANT-TERMINAL

JA302

CN308a

AM

GND

GND

FM

FLAME GND

C302 NOMT

Q403 2SC2785

1
2
3
4
5
6
7
8

CN308

L2 AM BLOCK COIL

L1

1K

R521

R421

1K

Q322 DTA114YS

Q301

Q504

2SC2785

2SC2785

C307 820P

BC1

0.022

1SS133

D1

C1 0.022

Q505

D2 1SS133

Q323
DTA114YS

R523 2.2K

+

C303

50V2.2

R371 22K

R372 22 K

R522 1K

R422 1K

Q324

Q325

R373 2.2K

DTC114YS

C301 0.001

L301

BIAS-COIL

C308

0.015-M

+

C309 0.01

C310 16V100

C7
12P

0.01

R6

47K

C18

100K

R4

D7

SVC203

R5

100K

+

C26

10V47

1

3

IN

OUT

LC1

GND

BPF

2

100uH

T1

AM IFT

L5

R9 10K

C34 0.0015

50V1

+

R10 330

C33

CF1 10.7MHz

Q503

2SC2785

R423 2.2K

Q404 2SC2785

Q405 2SC2785

C517 470P

C417 470P

R415 10K

R515 10K

Q302

KTC3200

C339

0.01

R307 2.2K

DTA114YS

C70

0.001

C4

R1 1.5K

C8 4.7P

R2 100K

C9 0.047

R3 1K

0.047

C11

2.2uH

0.01

C23

1SS133D31SS133

1SS133

D6 1SS133

D5

D4

5

4

3

2

1

DTA114YS

R301 1K

C311

R308 10K

R309

10

C2

3.9P

0.01M

C20

0.01

C22

R370 1 K

R506

6.8K

0.0068M

D8 SVC203

0.001

C15

KTC3194(O)

Q1

C12 0.01

330

R11

1000P

C509

R505

10K

100

R504

C504

0.018-M

+

C505 10V100

C503 33P

C502 680P

C501 680P

680P

C402

C401 680P

C403 33P

R401 100K

R403 9.1K

+

R402 6.8K

C404

0.018-M

C405 10V100

100

R404

C409 1000P

R406 6.8K

R405 10K

R310 3 9

Q303

KTC3203Y

C312

R311 12

RPHD

R385 47 K

C71

0.001

C10

0.01

R7 47K

8.2P

L4 FM-OSC

C21

C3

0.001

R8

FM-RF

L3

0.022

10

24

22

23

RFVCC

AM_RFIN

FM_RFOUT

RFGND1FM_RFIN2AM_FIL3MIX_OUT4VCC5AM_IFIN6FM_IFIN7GND8AGC9QUAD10R_OUT11L_OUT

330

R14

CF2

10.7MHz

33

470K

C19

0.01

R13

R12

1K

R303

18

A/B_SW

R305 10 K

R313 10K

330P

C24

+

C25 25V4.7

15

DET_OUT

CDA10.7MG80A

+

CF3

C325 50V2.2

VCC

MPX_IN

+

17

CG

H.Cro2/L.Nor.

47K

C17 0.01

14

LPF2/M_ST

+

16

C408 25V4.7

0.1

+

C5

13

12

0.01-M

C36

C508 25V4.7

R507 6 8K

15

REC_OUT2

R407 68K

+

R314 10K

Q307

DTC114YS

C28 50V1

3.3K

R16

LPF1/BAND

R23 5.6K

R24 5.6K

C37 0.01-M

+

REC_NF2

Q2

DTC114YS

TA2104N

IC1

14

1SS133

1SS133

0.001

C304

+

C507

25V4.7

R502 6.8K

R503 9.1K

R501 100K

H.Tape A / L.Tape B

24

23

22

21

20

19

NF2

EQ2

CH2_B

CH2_A

PREOUT2

CH1_A1CH1_B2NF13EQ14PREOUT15MIX_OUT6GND17EQSW8REC_OUT19REC_NF110REC_IN111GND

+

C407

25V4.7

Q304 KTA1267Y

R312 1K

Q306

DTC144ES

Q305

DTC144ES

BIAS

R386

Q5

DTA114YS

R17 100

18

19

21

FM_OSC

20

AM_OSC

0.022

10V100

OSC_OUT

C14

+

C13

16

IF_REQ17ST_IND

C16 25V10

C305

C510 0.0033C410 0.0033

REC_IN2

D301

D302

R387 1 0K

Q3
DTC114YS

C27

DTC114YS

R304 3 30

16V100

R509 150K

C511 25V10

13

ALC

IC401 TA8189

12

C411 25V10

R409 150K

R315 10K

0.1

Q4

4.7K

R26

+

+

R317 4.7K

R318 10K

A/B

4.7K

R25

H-Tape.B
L-Tape.A

R510 1.2K

R306 1M

R316 10K

+

R410 1.2k

+

C204 50V1+C104

MX-K35V

HEAD SW

R516 6.8K

3.3K R52 4.7K

100

R20

0.01

C67

17

18

I/O-7

I/O-9/IF216I/O-8/IF1

R61 1K

R62 1K

R64 1K

R65 1K

SD

PER

SCK

HALF SW

HIGH SW

R321 2 .2K

R322 2 .2K

47K

R320

R319 22 K

C357

0.01

DETB

DETA

TPA

R416 6.8K

C323 0.01

+

C50

16V47

0.001

+

C59

10V100

C58

C55 470P

C56 0.01

L50

220uH

11

12

15

14

13

VDD

GND

I/O-6

FMIN

AMIN

10

R69 47K

R67 47K

47K

R68

47K

R76

R77 47K

47K

R78

C512

***

Q501 2SD2144SQ401 2SD2144S

C514 1000PC414 1000P

R512 1.8K

R508 * * *

R513 2 2K

R413 22 K

180P

180P

Q502

2SD2144

2.2K

R56

2SC2785

12P

R514 4.7K

C345 0.01

C313 0.01

R414 4.7K

RECM

R417 22 KR517 2 2K

C518 0.0022 C 418 0.0022

R54 1.8K

C53 1-TF

0.0039

C54

Q7

2SC2785

DO220DO1

XT1XT2PERIOD3CLOCK4DATA5OT-16OT-27OT-38OT-49I/O-5/CLK

IC2 TC9257P

X1

7.2MHz

C61 100P

C62 100P

100P

C63

R15 47K

R53

R55 4.7K

19

R60 1K

R63 1K

MPX

+

C515
25V4.7

C306 10V47

C415
25V4.7

+

***

R408

R412 1.8K

***

C412

PBM

Q402 2SD2144

R418

2.2K

C413

Q308 DTC144ES

C513

R518

2.2K

Q6

DTC114YS

Q8

C52

50V1

C51 12P

0.001

C43 0.001

C38

R323 2.2K

R324 2.2K

R325 2.2K

SW5V

R59

C60

0.01

22

R75

C314

0.01

C356

0.01

10K

MX-K35V

+

M

-

70uS-A

70uS-B

F-REC

HALF-A

GND

HDP-A

HALF-B

PDET-A

R-REC

SOL-A

SOL-BM+PDET-B

101112

13

D321 1SS133

22K

R330 4 7K

R329

R328 1 0K

TPB

R331 3.3K

RECM

SOLA

MOT

SOLB

FTU

D10

1SS133

R71 3.3K

0.022

100K

C65

Q9

+

2SC2785

R73

1K

C66 16V47

R72

114215345678910111213

+5V

HDP-B

1142153456789

Q309 KTA1273Y

C315 0.01

R332 4.7K

Q10

KTA1267Y

FLAME GND

CN305

D303 1SS133

150

R333

Q310 KTC3199

R74

D322 1SS133

3.3K

R334

SOLBSOLA

33-1/4W UNF.F

1SS133

D304

(To A-4 on page 2- 4)

TO CTRL PWB

DOP

DCL

OPNCWCCW

CNTT

OPSW

DWSW

DCNT

TPSW

DETA

DETB

MOT

SOLB

SOLA

UPSW

13

FCD

C113 0.12-M

C216

25V4.7

2.2K

4.7K

R124

101112

DETA

DETB

270

R363

C328

C329

C330

100P

C320

25V4.7

R115 22K

R215 22K

R225 47K

PBM

RECM

AB

BIAS

CN301

114215316417518619789

FFC-22P

(To G-2 on page 2- 3)

BIAS

RECM

AB

MOT

PBM

SOLB

SOLA

10K

R367

47K

R368

Q327
KTA1267Y

C341

0.01

10V1000

0.01

R362

1-1/4W UNF.F

1K

R345

LMUT

+

C342

C343

D325 1SS133

Q101

2SC2785

R106 6.8K

R103 2.2K

R104 2.2K

R105 150K

C114

0.1-M

45

G

+

R346 4 7

C331 10V100

C214

0.1-M

R205 150K

R204 2.2K

R203 2 .2K

LVL

AHB

2.2K

R348

R206 6.8K

1K

MTZ5.1J

R347

D307

1K

R344

VCK

Q319
KTA1273Y

16V47

+

0.01

VDATA

+

15K

Q316

R352

2SC2785

Q315

2SC2785

C334

50V1

+

100K

R355

R351

180

R353

R356

1K

Q328

D326

DTA114ES

R224

+

Q203

2SC3576

R350

4.7K

C205 50V1

+

+

C105 50V1

-

+

+

-

6

C215 10V100

Q201

2SC2785

D310 1SS133

R354

33

220

R379

C350 50V1

R108 10K

C115 10V100

123

7

8

+

R208 10K

820

+

1SS133

R357 1 0K

1SS133

100K

R114 1 K R214 1K

R109

1.2K

R110

2.2K

VCC

R210

2.2K

R209

1.2K

C335

25V4.7

D308

100K

R358

TO CD SCH.SECTION

R213

10K

R113
10K

+

IC102

BA15218

50V1

+

C336

uRTS

uDA

uCLK
uSTB

C208 25V4.7

C108 25V4.7

R111

+

C332 16V47

R211 10 K

C337

R366

6.8K

Q329
DTA114ES

CN302

FFC-22P

RPHD

22

RPHD

21

BC1
uRTS
uDA
uCLK
MPX
PER
SD
SCK
LVL
TPA
TPB
uSTB
FCD
FTU
LMUT
ECHO
AHB
KARA
VCK
VDAT
BCNT

+

+

L306 F.B

D309

1SS133

10K

+

0.01

C109 25V4.7

C349

+

C209 25V4.7

R349 22 0

D311

1SS133

Q317

2SC2785

+

16V47

470

R359

D313

1SS133

R365

3.3K

10K

1SS133

D327

R380

BC1

20

uRTS

19

uDA

18

uCLK

17

MPX

16

PER

15

SD

14

SCK

13

LVL

12

TPA

11

TPB

10

uSTB

9

FCD

8
7
6
5
4
3
2
1

CD+5V

D.GND

OUT.L

A.GND

OUT.R

SW5V

M.GND

M+9V

V.GND

1
2
3
4
5
6
7
8

9
10
11

TO CONTROL PWB

FTU
LMUT
ECHO

(To A-3 on page 2- 4)

AHB
KARA
VCK
VDATA
BCNT

TO CD SCH.SECTION

(To G-3 on page 2- 3)

CN303

R.OUT
A.GD
L .OUT
5V6
D.GND
M.GND
B.CTRL
SFTY

TO POWER PWB

CDA.GND
9V
TU.GND

(To A-3 on page 2- 6)

CLSW

CLS

TO CD SCH.SECTION

DOP

DCL

OPN

HALF-SW

REC-FWD

HIGH SW

HEAD SW

C317

16V100

C318

25V4.7

L304

F.B

L-CHR-CH

Q313

KTA1273Y

+

+

3.3K

R337

SW5V

C202 50V1

+

C203 50V1

+

C102 50V1

+

C103

50V1

+

+

7

8

GND

BA3837

RIN9LP10LP11LP12ROUT13A14B15C

IC103

25V10

+

C217

220

R123

R223

R-CH

JA303

Line-Out

R338 1 K

Q314

DTC114YS

C326

0.01

+

C319 16V1000

25V10

+

C117 25V10

C352

6

LIN

BIAS

0.33-M

C348

C351 0.068

220

L-CH

C107

C220

220P

Q311

KTA1273Y

C316 0.01

Q312 KTC3199

150

R336

R335 4.7K

R202

6.8K

R102

6.8K

R101 39K

R201 39K

C201
100P

C101
100P

KARA

ECHO

0.001

C338

JA301

AUX INPUT

CLS
CW

CCW

CNTT
OPSW
CLSW
UPSW
DWSW
DCNT
TPSW

(To G-2 on page 2- 3)

47K

R369

L305
10uH

IC101 TDA7440D

1

RIN3

2

RIN2

3

RIN1

4

LIN1

5

LIN2

6

LIN3

7

LIN4

8

MUXO-L

+

9

IN(L)

25V4.7

10

MUXO-R

C207

+

11

IN(R)

25V4.7

12

BIN(R)

13

BOUT(R)

BIN(L)14BOUT(L)

C110

C210 0.082-M

C211 0.082-M

220

+

C118

16V47

R381

1

2

3FK4TK5

MIC

VCC

LOUT

R382 1K

16

22K

R384

+

C353

50V1

C120

220P

12345

9V

A.G

D.G

MIC

ECHO

TO MIC AMP.

(To D-4 on page 2- 7)

+

C355 25V10

D323 1N4001

D324 1SS133

LOUT

ROUT

AGND

CREF

DGND

TRE(R)

TRE(L)

0.082-M

10K

R383

Q330
DTC114YS

CN306

RIN4

SDA

SCL

PS1

Q321

DTC114YS

VS

LP

50V1

C354

C360

50V0.1

28

27

26

25

24

23

22

21

20

19

18

17

16

15

+

202122

+

R374 2 2K

D314

1SS133

C213

C327

C212

C112 0.0056-M

R112

C111

0.082-M

5.6K

R212 5.6K

C106

25V4.7

+

2.2K

R121

47K

R125

+

+

C116

DTC114YS

0.0056-M

25V4.7

22K

R361

Q318

0.12-M

16V10

C206

25V4.7

+

+

R221

Q103

2SC3576

AM RADIO SIGNAL

FM RADIO SIGNAL

RADIO SIGNAL

MICROPHONE SIGNAL

AUX INPUT SIGNAL MAIN SIGNAL

2-2

CD/TAPE PLAY SIGNAL

TAPE REC SIGNAL
LINE OUT SIGNAL

Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.

HAB C DE FG

CD servo control and CD mechanism section

CD servo control section

MX-K35V

CD mechanism section

5

E

I/V

+

--+

FOCUS

SPINDLE

REST-SW

M2

M

-

C792

50V4.7 (BIPOLAR)

1

2

1

2

SW704

Open

123

123

+

M

-

VCC

+

Disc Count

Down

VC

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

TRACKING

1

2

1

2

SW703

PI SW

M

+

-

6
5
4
3
2
1

CN605

M1

Up

5
4
3
2
1

CW603

1
2
3
4
5
6
7

TRAY MOTOR

VC
VCC
E
D
A
B
C
F

GND

LD
VR
PD
F+
T+
T­F-

SM+
SM­FM+
FM­GND
LIMIT

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

CN601 FFC-16P

CN602

6
5
4
3
2
1

5
4
3
2
1

CN604

CN603

1
2
3
4
5
6
7

D

I/V

A

I/V

B

I/V

C

I/V

F

I/V

L.D

+

P.D

4

OPTICAL PICKUP

KSS-213

+

M

-

FEED

Turn Table Motor

3

Table Position

Tray SW (TR SW)

Close

2

C601 0.01

R619 91

GND

GND

R657 1 0K

R655 1 0K

GND

R654 1 0K

TM­TM+

R653 1 0K

FCS+
TRK+
TRK­FCS-

R658 100K

R610 8.2K

R609 8.2K

R608 8.2K

R607 8.2K

R606 33 K

R605 4 7K

R604 4 7K

R603

47K

R602 4 7K

R601 3 3K

L601 10uH

R617 82 K

SM+
SM­FM+
FM-

DM+
DM-

LIMIT
TPSW
DCNT

R656 1 0K

R652 1 0K

UPSW
DWSW

CLSW

OPSW

C661
NOMT

D601

C615 0.01

R622 10 K

R618 8 2

+

1SS133

R651 100K

C613

16V47

Q602 KTA1267

R642 1 K

OPN

R650 1.5K

CCW

+

C602

16V47

C603 0.01

1

VCC

2

RFGC

3

GMAD

4

FNI

5

FPI

6

TPI

7

TNI

8

MDI

9

LDO

10

SEL

11

TEB

12

2VRO

13

TEN

14

TEO

SBAD15FEO

C612 0.01

R620 1 0K

C614 16V100

R621 1 0

IC601 TA2153FN

+

+

RFN2

GND

RFO

AGCIN

GVSW

RFGO

RFRPIN

PKC

RFCT

STC

RFRP

VRO

SEB

FEN

C611 16V47

IC604 TA8409S

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

IN1VCC2OUT3NC4GND5VS6OUT7VR8IN

+

R641 2.2K

C658 16V10

R643 100K

CLS

IC605 TA8409S

IN1VCC2OUT3NC4GND5VS6OUT7VR8IN

+

C660 16V10

C659 16V10

+

R649 2.2K

CW CNTT

C606 0.1

C607 0.1

C609 0.22

9

R640 1K

9

R648 1K

R616 4 7K

R639 100KR647 100K

R613 2 2K

C605

R615 2 20

C608 0.22

R638 3.3k

0.1

C657

R646 2.2K

C604
56p

R612

1K

1p

C610

16V47

R644

Q601

DTC114YS

4.7K

GVSW

R664

2.2K

R614

RFO

C628

16V47

+

16V47

C624

16V47

C623

0.01

C616

C630
100p

R631 15 K

+

+

C629 0.015

C626 2700p

C625 4700p

R630 NOMT

R629 1 K

C619 4700p

+

TP605

C617
470p

R635 47 K

C627 0.01

R628 3.3K

R627 10 K

0.047

C620

TP606 TRO

FDO

R634 1 0K

R633 6 8K

R632 100K

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

LPFN

LPFO

PVREF

VCOREF

VCOF

AVSS

SLCO

RFI

AVDD

REFCT

RFZI

RFRP

FEI

SBAD

TSIN

TEI

TEZI

FDO

TRO

VREF

+

C631 16V47

26

27

28

29

30

PDO

ZDET

TMAXS

HSSW

TMAX

25

P2VREF

C632 0.01

24

TESIO0

MONT

18

21

22

23

VDD

MONIT

SFSY17SBSY

SPCK19SPDA20COFS

0.01

+

C633 16V47

C634

11

13

14

15

16

DATA

VSS

IPF

VDD

SBOK12CLCK

10

MBOV

SCLK

SDATA

9

AOUT8DOUT

RFGC51TEBC52FMO53FVO54DMO552VREF56SEL57FLGA58FLGB59FLGC60FLGD61VDD62VSS63IO064IO165IO266IO367DMOUT68CKSE69DACT70TESIN71TESIO172VSS73PXI74PXO75VDD76XVSS77XI78XO79XVDD

TEB

R624

3.3K

R626

R637 3.3K

C618 470p

TA2092N

24

PWGND

23

OUT(-)4

SM-

C649

0.1

R625 3.3K

22

PVCC4

SM+

21

OUT(+)4

C648

18

19

20

VIN4

SGND

SVCC

R623 3.3KC621 0. 047

3.3K

IC603

0.047

+

C644

16V47

C645 0.01

TP607

TP608

FMO

FSC+

FSC-

C650

C646 0. 047

0.1

13

14

15

16

17

VIN3

PVCC3

OUT(-)3

PWGND

OUT(+)3

FMO

4.7K

HSO

1

TEST0

TSMOD

TEST4

CCE

BUCK

VDD

BUS3

BUS2

BUS1

BUS0

TEST3

TEST2

TEST1

DVSL

DVDD

DVSR

80

C641

RST

VSS

LO

DVR

RO

X601

IC602

TC9462F

16.9344MHz

15p

R666

R667

R668

R669

R670

R671

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

L603 10uH

C640 0.01

WCLK

2

4

5

6

7

VSS

BCK

C643 0.01

LRCK

UHSO3EMPH

C642 15p

4.7K

4.7K

4.7K

4.7K

4.7K

RST

C636

16V47

+

C637

0.01

C638

16V100

+

C639

0.01

R660

R661 4.7K

R662 4.7K

R663 4.7K

CCE

BUCK

BUS3

BUS2

BUS1

BUS0

CCE

BUCK

BUS3

BUS2

BUS1

BUS0

FB601 F.B

FB602 F.B

4.7K

CN606
FFC-25P

1

V.GND

2

BUS0

3

BUS1

4

BUS2

5

BUS3

6

BUCK

7

CCE

8

NC

9

SCLK

10

SDATA

11

WCLK

12

DCL

13

LIMIT

14

DOP

15

CD+5V

16

uCLK

17

GVSW

18

uRTS

19
20
21
22
23
24
25

OUT.R

A.GND

OUT.L

V.GND

D.GND

CD+5V

M+9V

M.GND

SW5V

uRTS

uDA

uCLK

uSTB

DOP

DCL

(To G-2, G-3 on page 2-5)

TO VCD SCH.SECTION

RST
uDA
uSTB
D.GND
OUT.L
A.GND
OUT.R

(To G-4 on page 2-2)

(To G-5 on page 2-2)(To F-5 on page 2-2)

PWGND1OUT(-)12PVCC13OUT(+)14VIN15VRI6VCI7VIN28OUT(+)29PVCC210OUT(-)211PWGND

12

C654

TRK-

16V100

C655 0.01

+

D602

1N4001

D603

1N4001

D604

1N4001

4.7K

R645

100

L602 10uH (F.B.)

C653

FM+

0.1

FM-

0.1

TRK+

C647

C651

0.1

C652

0.047

OPN

CLS

CW

CCW

CNTT
OPSW
CLSW
UPSW
DWSW

DCNT

TPSW

To Main Schematic Section

1

AB CD E F G

VIDEO/CD PLAY SIGNAL

2-3

<Front section>

Control/FL and switch section

5

4

3

2

FL2

-35V
FL1
DG
SMUT
PCNT
SPK
PRT
INH

TO POWER PWB

SFTY
5V6

(To A-3, A-4 on page 2-6)

DOP
DCL
OPN
CLS
CW
CCW
CNTT
OPSW
CLSW
UPSW
DWSW
DCNT

TO MAIN PWB

TPSW
DETA

(To F-5 on page 2-2)(To G-4 on page 2-2)

DETB
MOT
SOLB
SOLA
PBM
RECM
AB
BIAS

RPHD
BC1
uRTS
uDA
uCLK
MPX
PER
SD
SCK
LVL
TPA
TPB
uSTB

TO MAIN PWB

FCD
FTU
LMUT
ECHO
AHB
KARA
VCK
VDATA
BCNT

CN703

CN701

1
2
3
4
5
6
7
8
9
10
11

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

CN702

FFC-22P

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

FFC-22P

DETA
DETB

C719 50V22

MX-K35V

FL701 V ACUUM FLUORESCENT DISPLAY

330

R789

50V22

+

R784 120KR786 120K

+

C718

DOP
DCL
OPN
CLS
CW
CCW
CNTT
OPSW

CLSW
UPSW
DWSW
DCNT
TPSW

MOT
SOLB
SOLA
PBM
RECM
AB
BIAS

RPHD
BC1
uRTS
uDA
uCLK
MPX
PER
SD

SCK
LVL
TPA
TPB
uSTB
FCD
FTU
LMUT
ECHO
AHB
KARA
VCK
VDATA

R785 2 2KR787 2 2K

SMUT
PCNT
SPK
PRT
INH
SFTY

DETA

DETB

Q706

DTC114YS

Q707

DTC114YS

C720 0.1

R702 4 7K

R704

R708 47 K

R710 47K

R712 47K

R714

R706 47 K

R724 47K

R726

R728 47K

R730 4 7K

R732

R790 2 .2

L701 10uH

F1

D704 1SS133

DOP

DCL

OPN

CLS

CW

CCW

CNTT

OPSW

CLSW

UPSW

DWSW

DCNT

TPSW

MOT

SOLB

SOLA

PBM

RECM

L702 10uH

D705 1SS133

R707 1K

R709 1K

R711 1K

R713 1K

R715 2.2K

R716 2.2K

R717 2.2K

R718 2.2K

R719 2.2K

R720 2.2K

R705 1K

R721 2.2K

R722 2.2K

R723 1K

R725 1K

R727 1K

R729 1K

R731

C702 6.3V220

R733 330

D701
1SS133

D702

1SS133

D703

1SS133

81

DCL

82

Reserved

83

CLS

84

CW

85

CCW

86

CNTT

87

OPSW

88

CLSW

89

UPSW

90

DWSW

91

DCNT

92

TPSW

93

OPN

94

DETA

95

DETB

96

MOT

97

SOLB

98

SOLA

99

PBM

4.7K
100

RECM

+

C703

6.3V470

+

47K

47K

47K

10K

5

214

NP

NP

P1P2P3P4P5P6P7P8P9

F1

47K

RA701

RA702 47K

80

DOP

VDD1AB2BIAS3RPHD4BC15uRTS6uDA7uCLK8MPX9PER10SD11SCK12REM13KEY014KEY115KEY216VER17LVL18SFTY19TPA20TPB21VSS22VASS23VAREF24VDD25INH26TEST27XTI28XTO29VSS

1K

1K

C701 0.1

R734

R735

AB

RPHD

BIAS

Version Setting Jumper

F.B

L703

C704

0.01

987

6

RA703 47K

R7371KR736 1K

BC1

101112131415161718192021222324252627282930

P10

P11

P12

P13

47K

RA704

RA705 47K

RA706 47K

RA707 47K

RA708 47K

RA709 47K

RA710 47K

RA711 47K

RA712 47K

RA713 47K

70P971P872P773P674P575P476P377P278P179

IC701

TMP87CM78XXXX

220

220

R742

1K

2.2K

R746

R748 2.2K

R747

R745

R743 22 0

PER

SD

SCK

REM

KEY1

KEY0

JP702 UX

R750 5.6K

R751 5.6K

C705

220

220

R738 2 20

R740

R739

R741 2.2K

uRTS

uDA

uCLK

MPX

US

JP701

P14

P15

P16

47K

RA716

RA714 47K

RA715 47K

P1664P1565P1466P1367P1268P1169P10

2.2K

2.2K

R749

R753

KEY2

R752 5.6K

R757 56K

0.01

G1G2G3G4G5G6G7

RA718 47 K

RA719 47K

RA720 47K

RA717 47K

R754 2.2K

C721

2.2K

R756 22 0

R755

56K

12K

47K

R758

R759

R760

9G

G8

RA721 47K

RA722 47K

RA723 47K

RA724 47K

RA725 47K

54G955G856G757G658G559G460G361G262G163

C722

0.01

R761 2.2K

0.01

0.1

C706

R794

Q703

DTA114YS

1K

10G

RA726 47K

11G

RA727 47K

32.768KHz

C707 22P

MX-K35V

NP

NP

31

32

13G

12G

47K

RA728

RA729 47 K

G1351G1252G1153G10

50

VKK

49

VOL-

48

VOL+

47

VDAT

46

VCK

45

KARA

44

AHB

43

ECHO

42

LMUT

41

SPK

40

SMUT

39

SHFT

38

PCNT

37

FTU

36

FCD

35

PRT

34

uSTB

33

RST

32

XOUT

31

XIN

30

220

R762

X702

22P

C708

Q702

DTA114YS

4.7K

R783

34

35

F2

R781

R780

R779

R778 2 20

R777 1 K

R776 1 K

R775 1 K

R774 1 K

R773 1 K

R772 1 K

R771

R770

R769

R767 2 .2K

R766 2 20

R765 2 .2K

Q704

2SC2668

2.2K

C713

0.001

R763

R791 2 .2

F2

150P

C717

R792 1 0K

33P

C710

IC703

PST9119

3

33P

C711

C712 33P

OUT1VDD2VSS

C715

Q705

2SC2668

C714

0.001

0.01

R793 1 0K

VDAT

VCK

KARA

AHB

ECHO

LMUT

SPK

SMUT

PCNT

FTU

FCD

PRT

uSTB

RESET

R768

100K

2.2K

R764

R782 10 K

+

C716 50V1

CONTROL PWB

R795

SW001 JOG

IC702
IR-UNIT

C1002

0.001

GND1VCC2OUT

3

+

C1001

S1011

CD

S1012

CD1

S1013

CD2

S1014

CD3

S1015

EJECT

S1016

DISC

S1017

REC

s1018

DUBBING

S1019

A/B

S1020

TIM/CLK

S1021

RETURN

6.3V47

R1010

R1011

R1012

R1013

R1014

R1015

R1016

R1017

R1018

R1019

123

S1001

S1003

S1004

S1005

S1006

S1007

S1008

CANCEL

S1009

S1010

A.BASS

POWER

S1002

TAPE

AUX

BAND

ROCK

CLASSIC

POP

SET

FW702

FW702

C1004

0.01

1

2

1

2

0.01

C1003

680

680

R1001

560

560

R1002

680

680

R1003

820

820

R1004

1.2K

1.2K

R1005

1.2K

1.2K
R1006

1.8K

1.8K

R1007

2.7K

2.7K
R1008

3.9K

3.9K

R1009

6.8K

red

390

LED01

FW701

1
2
3
4
5
6
7
8
9

R1020

R1021

R1022

R1023

R1024

R1025

R1026

R1027

R1028

R1029

R1030

R1031

680

560

680

820

1.2K

1.2K

1.8K

2.7K

3.9K

6.8K

12K

S1022

STOP

S1023

TUN -

S1024

TUN +

S1025

PRESET-

S1026

PRESET+

S1027

CD REC

S1028

REPEAT

S1029

PROGRAM

S1030

RONDOM

S1031

PBC

S1032

KEY+

S1033

KEY-

1
2

VOL-

3

VOL+

4

4.7K

LED
5V
REM
KEY2

KEY1

KEY0

FW701

5
6
7
8
9

33P

C709

Q701

DTC114YS

2.2K

2.2K

220

1K

1K

1K

X701

8.0MHz

1

2-4

HAB C DE FG

VCD section

MX-K35V

R1102 Cancel

R1101

4.7K

0.1

C1101

5

LA17

30

31

32

VCC

PGM

VPP1A162A153A124A75A66A57A48A39A2

LA15

LA16

4.7K

R1123

XCLK

ADATA

ABCLK

ALRCK

AIN

ARCLK

220

R1128

C1103

ARFS

16V10

220

R1129

+

C1102

0.1

81

VPP

82

LA12

83

LA13

84

LA14

85

LA15

86

LA16

87

LA17

88

ACLK

89

AOUT/SEL_PLL0

90

ATCLK

91

ATFS/SEL_PLL1

92

DA9/DOE#

93

AIN

94

ARCLK

95

ARFS

96

TDMCLK

97

TDMDR

98

TDMFS

99

CAS#

100

VSS

220

C1104

0.1

R1130

RAS

0.1

+

C1105

C1106 16V100

4

3

2

LA9

LA8

LA14

LA13

28

A1429A17

A13

LA11

25A926A827

A11

IC104

27C020

LA10

23OE24

10

LA6

LA7

LA5

LA3

LA4

LA12

79

80

VSS

LA1078LA11

LA2

77

LD6

LD4

LD7

LD5

21CE22

A10

LA1

A111A0

LA0

D215GND

D013D1

12

14

LD1

LD0

IC101

ES3880FL

VDD1RAS#2DWE#3DA04DA15DA26DA37DA48DA59DA610DA711DA812DBUS013DBUS114DBUS215DBUS316DBUS417DBUS518DBUS619DBUS720DBUS821DBUS922DBUS1023DBUS1124DBUS1225DBUS1326DBUS1427DBUS1528RESET#29VSS

A1

WE

A2

A3

A0

20

VCC

A5

A6

A4

15A016A117A218A319

N.C

A725A826OE27CASH28CASL29NC30D831D932D1033D1134GND35D1236D1337D1438D1539GND

A624A523A422GND

A8

A7

12WE13

14

11

NC

NC

RAS

21

BCLK

LRCK

SRDATA

DOE#

CAS#

EAUX13

LD3

uRTS

R1148 2 20

67

AUX6/VFD_DO

IC102

ES3883F

KTA1504

4.7K

C1146 0. 1

R1138

65

66

VCC

D317D418D519D620D7

CCE

BUS3

16

LD2

LCS1

CE

67

LA068LA169LA270LA371LA472LA573LA674LA775LA876LA9

LCS3#65LCS1#66LCS0#

LD6

LD4

LD7

LD5

OE

62

63

64

LOE#

LWR#

LD0

LD2

LD1

LD3

AUX5

uDSA_STB

uDSA_ACK

54

LD055LD156LD257LD358LD459LD560LD661LD7

AUX652AUX553AUX7

51

VDD

AUX4

AUX3

AUX2

AUX1

AUX0

PCLK

PCLK2X

CPUCLK

HSYNC

VSYNC

YUV7

YUV6

YUV5

YUV4

YUV3

YUV2

YUV1

YUV0

C1111

0.1

C1112

0.1

LD7

LD6

LD5

LD4

LD3

LD2

LD1

50

VSS

49

48

uDSA_DA

47

C1115 0.1

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

VDD

R1109 1K

R1103 33

R1104 33

R1105

R1106 10

RST

10

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

DSC_D7

HSYNC_B

DSC_D6

VSYNC_B

DSC_D5

YUV7

YUV6

YUV5

YUV4

VCC

VSS

YUV3

DSC_D4

YUV2

DSC_D3

YUV1

DSC_D2

YUV0

DSC_D1

VSS

80

2XPCLK

C1113 0 .1

77

78

79

VSS

VCC

PCLK

C1141

L1108

75NC76

C1140

27P-CH

C1139

1000P

R1124
100K

X1101

3.3uH

27.00MHz

72

73

74

XIN

VSS

VSS

VCC

27P-CH

GVSW

220

220

220

R1146

R1142

R1147

70

71

AUX568AUX469AUX3

XOUT

VSS1NC2NC3NC4VCC5DSC_C6AUX07DSC_D08AUX19DSC_S10AUX211DCLK/EXT_CLK12RESET_B13AUX7/NFD_DI14MUTE15VCC16MCLK17AUX8/NFD_CLK18TWS/SPLL_OUT19AUX9/SQSO20TSD21TBCK22RWS/SEL_PLL123RSTOUT_B24VSS25VSS26NC27NC28NC29NC

30

D7D8D9

D0

D2D3D4

D1

D6

D5

6D47D58D69D710

VCC

IC103

4C16256

D11

D10

1D02D13D24D35

VCC

16V10

C1108

C1107 0. 1

40

D15

D12

D13

D14

C1110 0 .1+C1109 1 6V10

D1101
1N4001

+

2

OUT

1

GND

IN

IC105

AMS1117

3

C1114

0.1

LD0

JP1101

Chip Jumper

Normal=Short

LCS1

R1143

BUS0

220

220

R1144

AUX5

BUS1

R1145

BUS2

220

CPUCLK

10V10

+

R1108 3 3

C1152

R1137 10 K

XCLK

R1110 4.7K

75

L1106

D1104

R1136

Q1101

150

R1121

75

R1127

60

61

63

YDAC

VDAC64ACAP

VSSAV62VSSAV

VCCAV

2.7uH

C1132 270P

+

C1130
16V100

75

C1131 0 .1

R1126

57

58

59

CDAC

VCCAV

1SS133

1SS133

330P

C1134

D1103

270

0.1

C1129 0 .1

R1120

C1128

51

52

53

54

55

VREF

RSET

COMP

VSSAV56VSSAV

VREFM

VCCAA

VREFP

VSSAA

AUX15/IR

AUX14/SOSI

AUX13/SP

RBCK/SER_IN

AUX12/C2PO

AUX11/IRQ

AUX10/SQCK

RSD/SEL_PLL0

30

220

220

R1141

R1140

BUCK

4.7K

R1111

ALRCK

ARFS

DOP

ABCLK

ADATA

4.7K

4.7K

R1112

R1125 1K

R1113

0.1

C1145

ARCLK

AIN

R1114 4.7K

R1115 4.7K

VSSAA

MIC2

MIC1

AOL+

AOL-

AOR-

AOR+

VCM

VCC

VSS

C1137 10V470

+

0.01

R1122 1 0

C1126
16V47

C1127

C1135

R1149

220

R1139

C1116

0.1

C1118

220

L1104 F.B

R1133

2.2K

R1132

2.2K

0.1

C1119 0 .1

+

EAUX13

ARCLK

AIN

+

0.1

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

C1149

C1148

LIMIT

+

16V47

DCL

0.0022

0.0022

C1117

C1121

16V100

C1143

R1134

16V100

0.01

C1138

L1103 10uH

R1135

0

0

L1101

10uH

0.1

C1120

5V

+

cancel

C1151

C1150

cancel

F.B

L1102

uDSA_STB

uDSA_DA
XRST
uRTS
GVSW

uDSA_ACK

DOP
LIMIT
DCL

CCE
BUCK
BUS3
BUS2
BUS1
BUS0

D1105

C1142

1SS133

0.1

J1101

V.OUT

C1144
Cancel

D1106

1SS133

ROUT

AGND
LOUT

LRCK

F.B

L1105

SRDATA

BCLK

VGND

25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10

9
8
7
6
5
4
3
2
1

Chassis GND

CN101

FFC-25P

OUT.R
A.GND
OUT.L
D.GND
uSTB
uDA
RST
uRTS
GVSW
uCLK
CD+5V
DOP
LIMIT
DCL
WCLK
SDATA
SCLK
NC
CCE
BUCK
BUS3
BUS2
BUS1
BUS0
V.GND

To Main Board

(To G-4, G-5 on page 2-3)

CD SIGNAL
VIDEO SIGNAL

1

AB CD E F G

VIDEO/CD PLAY SIGNAL

2-5

Main amplifier section

MX-K35V

MX-K35V

R922 2.2K

+

C154

50V47

Q916
KTC3200

Q252

R923 100K

KTA1267

R271 10 K

10V100

+

C919

R926

10K

R924 22 K

R171 10 K

C152

IN 2

NF 2

SUB G

PRE-VSS

OUT 2 -

OUT 2 +

VSS

VCC

OUT 1 -

OUT 1 +

BIAS

PRE-VCC

N.C

NF-1

IN-1

Q907 2SB1375

Q911

KTC3199

470P

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

C252

470P

DTC114YS

D913 MTZ11B

C153

C253

220P

0.22-2W UNF.MF
R159

0.22-2W UNF.MF
R158

R170 1K

0.22-2W UNF.MF
R259

0.22-2W UNF.MF
R258

R270 1K

R918 10k

220P

Q909

DTA114YS

Q912

PCNT

R154 56 KR254

56K

R155 1.5K

R156

C155 10P

R173 15 K

R273

R256 47 K

C255 10P

R255

1.5K

+

C254

50V47

25V10

+

C922

Q918

D151

C256

R260

150-1/4W

+

Q910

DTC114YS

+

Q152
KTA1267

D915 MTZ6.8B

R913 470

47K

C156

50V100

1.5K

R157

1SS133

1.5K

R257

50V100

15K

D251

1SS133

1

R914

1

R915

1

R916

R917 1K

Q908

KTA1267

DTC114YS

SFTY

2.2K

R151

R152

4.7K

C151 25V4.7

+

5

Q151

KTC3199

4

STK402-070

IC151

Q251
KTC3199

R252

4.7K

R251 2.2K

D912 MTZ12C

R253 1 0K

R253 10 K

+

C251 25V4.7

+

C921 16V100

C920 0.1

FFC-11P

CN901

CN902

1
2
3
4
5
6
7
8
9
10
11

1
2
3
4
5
6
7
8
9
10
11

FW-11P

FL2

-35V
FL1
DG
SMUTE
PCNT
SPK
PRT
INH
SFTY

(To A-5 on page 2-4)

TO CONTROL PWB

5V6

R-OUT

3

A.G
L-OUT

5.6V
D.GND
MGND
B.CTL
SFTY
CDA.GND
9V

TO MAIN PWB

TUGND

(To G-3 on page 2-2)

F2

-35V
F1

SMUTE

PCNT
SPK

PRT

INH

SFTY

2

1

D921

1SS133

3.3K

R911

Q917

R925 47K

R160

150-1/4W

L151 5uH

R161 2 2

R162 2 2

R262 2 2

R261 2 2

L251

D911

MTZ5.6C

22K

R910

INH

KTA1268

5uH

C157

C158

R172 22

C918

0.01

0.1-M

0.1-M

R163 22

2SB1375

R909

47K

Q906

KTC3199

DTC114YS

Q904

Q903

R164 10K

R165

390-1/4W

UNF.C

R265

390-1/4W

UNF.C

C257

0.1-M

C258

0.1-M

22

22

R263

R272

Q902

DTC114YS

R264 10K

C923 25V10

R167 10 K

R166

390-1/4W UNF.C

R266

390-1/4W UNF.C

R169 100K

R269 100K

Q913

KTC3199

R919 47 K

C928 0. 001

2.2-1/2W UNF.F

Q905

KTC3199

470

R912

1K

R907

D914

+

R908

+

C917

50V2.2

1SS133

R168 1 K

Q153 KTC3199

KTC3199

Q914

D910

R921 470K

C924 50 V1

+

R920 4 70

R268 1K

Q253

KTC3199

+

C925

16V47

R927 100K

Q915
KTC3199

MTZ6.2J

R267 10 K

50V22

C915

-35V

+

RY901

R928 1 0

R929 1 5

+

C926

16V22

D916

1SS133

PCNT

+

C906

50V3300

+

C905

50V3300

+

R901 4.7K

C911 25V4700

D907

MTZ33J

0.01

C914

Q901

D909 1SS133

C916 25V10

+

D908 MTZ6.2J

12V

Q921
KTC3199

PRT

C908 0.1C910 0.1

D919

D920

1SS133

1SS133

Q920

C904

C903

+

D918 1SS133

R930 2.2K

Q922
DTC114YS

Q919 DTA114ES

DTA114ES

0.068-M

0.068-M

1N5391D905

D903

D904

1N5391

+

C913

50V22

R903

2.2K

2SA934

R906

+

SMUTE

D901

TS6B02G

C902

0.068-M

D902

1N5391

1N5391

C912

63V47

D906

1N4001

10K

R904 100

R905 100

R931 10 K

25V2.2

C927

D917 1SS133

C907 0.1C909 0.1

SPK

C901

0.068-M

R902 100 1/4W UNF.F

F2

J901

SP-L +

SP-L -

SP-R -

SP-R +

SPEAKER OUTPUT

4

SW

3

L

2

GND

1

R

To HEADPHONE

S1
S1-GND
S1
S2
S2
S3
S3
S4
S4

(To B-1, B-2 on page 2-7)

To SECONDARY

(To E-4, E-5 on page 2-7)

CN903

CN951

1
2
3
4
5
6
7
8
9

F1

2-6

MAIN SIGNAL

Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.

HAB C DE FG

MX-K35V

ECHO section

+

+

1SS133

C861

G

-

D851

R867 1.5K

C858

C871 0.047

45

3

2

1

R869 560

R860
15K

R859

0.0033

4.7K

R858
10K

+

R882
12K

33K

16V22

R875 22K

C872 390P

47K

R876

+

C862

0.01

C860 0.47-M

C868 50V4.7

R878 100K

MTZ5.1JB

D852

R868 4.7M

C873 390P

470

R861

Q852

2SC2785

R879 4.7K

+

C877

50V4.7

C875 0.01

FW852

1

MIC

2

AG

3

+B 9V

4

ECHO

5

DG

TO MAIN PCB

(To F-1 on page 2-2)

IC852

BA15218F

Q851

1K

R862

2SD2144

5

JA851
HTJ-064-07AG

MIC JACK

10K-A

VR840

+

C863 50V2.2

R840

C870

4.7K

+

10V220

R863 4.7K

R873

12K

R874 10K

4

R881 2.2K

22K

R880

22K

R851

C853

0.012-M

C855
10V100

+

C856 0.01

3

R855 39K

R852

R853
10K

8.2K

C852

C854

0.01-M

0.0047

10

11

12

13

14

15

16

C851

+

50V4.7

9

C864

R864 47

C865

150P

R865 27K

+

R870 4.7K

IC851

BU9253FS

MIXI

ADLPFI

ADLPFO

ADINTO

ADINTI

VCC

MUTE

CR

150P

C867

R871

4.7K

6

7

8

C866 330P

50V1

R872

+

C869

10V100

C876 50V1

MIXO

DALPFO

DALPFI

DAINTI

DAINTO

BIAS

ECHO VR

GND

R866
390

220

+

VCC

8

7

6

5

4

3

2

1

-

C859

0.01-M

82K

Power supply section

U/UB/UR/US/UT Version

FW951

1
2
3
4
5
6
7
8

(To G-2 on page 2-6)

9

AC110V

3

1

7

5

4

6

8

2

F952 T1.6A

1

8

9

10
11

12
13

14
15

16

AC127V

5

3

7

4

110/127/220/230-240V 50/60Hz

T951

5

6

4

3
2

1

7

AC220V

6

8

3

1

2

VOL-SEL

S999

5

3

6

1

8

2

7

4

F953

T1.25A

F951 T.2.5A

AC-PLUG

AC230-240V

5

6

8

2

7

4

5

3

6

1

8

2

7

4

Q853

C857 100P

R856

R857

DTA114YS

1 2 3 4 5 6 7

Head phone section

2

J1053
VMJ4026-001

HEAD PHONE JACK

HEADPHONE PCB

0.001

C1051

L1053 F.B

L1051 47uH

0.001

C1052

47uH

L1052

1
2
3
4

FW1051

ROUT
GND
LOUT
SW

TO MAIN PCB

(To G-4 on page 2-6)

Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.

MICROPHONE SIGNAL

MAIN SIGNAL

Pin Assignments

891011121314151617

THIS PART IN CTL PCB

1

AB CD E F G

2-7

MX-K35V

MX-K35V

Printed circuit boards

Main board

5

(Tray switch board)

4

(Table pos. board)

(Disc count board)

(Pickup switch board)

Note : This is a printed circuit board on a silk screen print.

This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print.

(Turn table motor board)

3

2

1

(ECHO board) (Main board)

2-8

HAB C DE FG

MX-K35V

Front board

Note : This is a printed circuit board on a silk screen print.

This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print.

(Control/FL board)

(Voltage selector board)

5

(Active bass ex.switch board)

4

3

2

SW101

1

FW151

(Head phone board)

(Switch board)

AB CD E F G

2-9

MX-K35V

MX-K35V

Power amplifier board

Note : This is a printed circuit board on a silk screen print.

This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print.

5

4

3

2

1

2-10

HAB C DE FG

MX-K35V

Power supply board

Note : This is a printed circuit board on a silk screen print.

This method enables the patterns of both surfaces of the printed circuit board to be shown
because of the transparency of the silk screen print.

5

4

3

2

1

AB C

2-3

2-11

MX-K35V

VCD board

5

Surface side view

4

3

2-4

2-12

2

1

AB CD

MX-K35V

5

Bottom side view

4

3

2

1

AB C

2-5

2-13