JVC UX J60 Service Manual

22029200303

UX-J60

SERVICE MANUAL

MICRO COMPONENT SYSTEM

UX-J60

RM-SUXJ60R REMOTE CONTROL

SP-UXJ60

SP-UXJ60CA-UXJ60

Area Suffix

B -------------------------- U.K.
E ------- Continental Europe
EN --------- Northern Europe

TABLE OF CONTENTS

1 Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

4 Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.

No.22029

2003/03

UX-J60

Important Safety Precautions

1.1 Safety Precautions

(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 manufacturers 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 reassembling.

(5) Leakage shock hazard testing)

After reassembling 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 ohm 10W resistor
paralleled by a 0.15 µF AC-type capacitor between an

SECTION 1

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 measure 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.).

1.2 Warning

(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.

1.3 Caution

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.

1.4 Critical parts for safety

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.
When replacing them, be sure to use the parts of the same type
and rating as specified by the manufacturer. (Except the JC version)

1-2 (No.22029)

1.5 Safety Precautions (U.K only)

(1) This design of this product contains special hardware and many circuits and components specially for safety purposes. For con-

tinued 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.

(2) Any unauthorised design alterations or additions will void the manufacturer's guarantee; furthermore the manufacturer cannot

accept responsibility for personal injury or property damage resulting therefrom.

(3) Essential safety critical components are identified by ( ) on the Parts List and by shading on the schematics, and must never

be replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts in
the product have special safety related characteristics. These characteristics are often not evident from visual inspection. Parts
other than specified by the manufacturer may not have the same safety characteristics as the recommended replacement parts
shown in the Parts List of the Service Manual and 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.

1.5.1 Warning

(1) Service should be performed by qualified personnel only.
(2) This equipment has been designed and manufactured to meet international safety standards.
(3) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(4) Repairs must be made in accordance with the relevant safety standards.
(5) It is essential that safety critical components are replaced by approved parts.
(6) If mains voltage selector is provided, check setting for local voltage.

UX-J60

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.

(No.22029)1-3

UX-J60

1.6 Preventing 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.

1.6.1 Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.
Be careful to use proper grounding in the area where repairs are being performed.

(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) Ground yourself

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

(3) Handling the optical pickup

• 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.)

• 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.

1.7 Handling the traverse unit (optical pickup)

(1) Do not subject the traverse 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 replace-

ment procedure in the text. Remove the anti-static pin when replacing the traverse 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) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.8 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the CD pickup unit.

• Apply solder to the short land sections before the flexible wire is disconnected from the connector CN101 on the CD servo board.
(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)

• In the assembly, be sure to remove solder from the short land sections after connecting the flexible wire.

Shorting round

1-4 (No.22029)

Flexible wire

Shorting round

CN601 on
mechanism
board

1.9 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 laser

radiation and is equipped with safety switches which
prevent 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.

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(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 anadjustment or operation check.

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.

REPRODUCTION AND POSITION OF LABELS

ADVARSEL

Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er
ude af funktion. Undgå udsasttelse for stråling.

ADVARSEL

Usynlig laserstråling ved åpning, når sikkerhetsbryteren er avs­lott. unngå utsettelse for stråling.

Caution label

(No.22029)1-5

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r

A

2.1 Main body

2.1.1 Removing the metal cover

(See Fig.1~3)

(1) Remove the six screws A on the back of the main body.
(2) Remove the two screws B on each side and remove the

metal cover in the direction of the arrow.

SECTION 2

Disassembly method

A

Metal cove

A

B

Fig.2

Fig.1

B

Fig.3

1-6 (No.22029)

2.1.2 Removing the rear cover

r

(See Fig.4)

(1) Remove the two screws C attaching the rear cover.

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C

Rear cove

Fig.4

2.1.3 Removing the rear panel / fan assembly
(See Fig.5, 6)

• Prior to performing the following procedure, remove the metal

cover and the rear cover.
(1) Remove the eleven screws D attaching the rear panel. Re-

lease the two joints a on the rear side and the two joints
b on each side.

(2) Remove the two screws E attaching the fan bracket and

release the two joints c on the rear panel, and remove.

(3) Disconnect the wire from the connector CN916 on the main

board.

DD

a

Rear panel

EE

cc

Fan assembly

D

Main board

CN916

Fig.6

D

b

Fig.5

D

b

(No.22029)1-7

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2.1.4 Removing the tuner board
(See Fig.7)

• Prior to performing the following procedure, remove the metal

cover.
(1) Disconnect the card wire from the connector CN1 on the

tuner board.

(2) Remove the two screws F on the rear side and the screw

G in the side.

2.1.5 Removing the CD-R/RW mechanism assembly
(See Fig.8)

• Prior to performing the following procedure, remove the metal

cover, the rear cover, the rear panel and the tuner board.
(1) Disconnect the card wire from the connector CN903,

CN902 and CN904 on the main board.

(2) Pull the joint d in the direction of the arrow and remove the

CD-R/RW mechanism assembly backward while releasing
the joint e .

G

Tuner board

CN1

Fig.7

CD-R/RW mechanism assembly

F

d

d

Main board

e

CN903

CN904

CN902

Fig.8

1-8 (No.22029)

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2.1.6 Removing the main board / the heat sink board / the

speaker jack board
(See Fig.9~12)

• Prior to performing the following procedure, remove the metal

cover, the rear cover, the rear panel, the tuner board and the
CD-R/RW mechanism assembly.
(1) Remove the two screws H attaching the main board.
(2) Disconnect the card wire from the connector CN900,

CN901, CN930, CN931 and CN932, and disconnect the
flat wire from the connector CN913, CN917 and CN918 on
the main board.

(3) Remove the band and disconnect the flat wire from the

connector CN951 on the power transformer assembly, and
then remove the main board / the heat sink board / the
speaker jack board from the body.

(4) Release the two joints f of the main board and disconnect

the connector CN944 and CN945 of the heat sink board
from the connector CN912 and CN911 of the main board
respectively, and disconnect the flat wire from the connec­tor CN914 and CN915, and remove.

(5) Remove the screw I attaching the speaker jack board and

disconnect the flat wire from the connector CN946 and
CN947 on the heat sink board, and then remove the speak­er jack board.

CN912

CN911

CN944

CN915

CN945

Main board

CN914

Heat sink board

CN946

Speaker jack board

Fig.11

CN947

I

f

CN930

CN913

CN931

Fig.9

Main board

CN932

CN901

H

CN900

CN917

CN918

Band

Speaker jack board

Fig.12

Power transformer assembly

CN951

Fig.10

(No.22029)1-9

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2.1.7 Removing the power transformer assembly
(See Fig.13)

• Prior to performing the following procedure, remove the metal

cover, the rear cover, the rear panel, the CD-R/RW mecha­nism assembly and the main board.
(1) Disconnect the power cord from the connector J1000 on

the power transformer assembly.

(2) Remove the four screws J .

JJ

2.1.8 Removing the front panel assembly
(See Fig.14,15)

• Prior to performing the following procedure, remove the metal

cover.
(1) Remove the two screws K on each side. Release the two

joints g on the both sides and lift the front panel assembly
to release the joint h .

(2) Disconnect the card wire from the connector CN900,

CN901, CN930, CN931 and CN932 on the main board.

Front panel assembly

Powe transformer assembly

J1000

Fig.13

h

Main board

CN932CN931 CN930

g

1-10 (No.22029)

K

Fig.14

CN900

CN901

Fig.15

g

K

Front panel assembly

2.1.9 Removing the phones board

(See Fig.16)

• Prior to performing procedure, remove the metal cover and the

front panel assembly.
(1) Disconnect the flat wire from the connector CN913 on the

main board.

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Mian board

CN913

2.1.10 Removing the cassette mechanism assembly

(See Fig.17)

• Prior to performing the following procedure, remove the metal

cover and the front panel assembly.
(1) Remove the four screws L attaching the cassette mecha-

nism assembly.

Phones board

Fig.16

L

Cassette mechanism assembly

Fig.17

L

(No.22029)1-11

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2.1.11 Removing the switch board
(See Fig.18,19)

• Prior to performing the following procedure, remove the metal

cover and the front panel assembly.
(1) Remove the four screws M attaching the switch board.
(2) Move the switch board in the direction of the arrow to dis-

connect the wire from the connector CN762 and the card
wire from the connector CN761.

2.1.12 Remove the LCD board assembly
(See Fig.18)

• Prior to performing the following procedure, remove the metal

cover and the front panel assembly.
(1) Remove the four screws N attaching the LCD board as-

sembly.

M

Switch board

CN762 CN761

LCD board assembly

NN

M

Switch board

Fig.18

Fig.19

1-12 (No.22029)

2.1.13 Removing the control panel assembly

(See Fig.20,21)

• Prior to performing the following procedure, remove the metal

cover, the front assembly, the switch board and the LCD board
assembly.
(1) Remove the three screws O attaching the control panel as-

sembly.

(2) Release the three joints i and open the cassette door

while pressing the cassette door, and then remove the con­trol panel assembly in the direction of the arrow.

UX-J60

O

O

Fig.20

i

Cotrol panel assembly

Fig.21

(No.22029)1-13

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2.1.14 Remiving the control board
(See Fig.22,23)

• Prior to performing the following procedure, remove the metal

cover, the front panel assembly, the switch board, the LCD
board assembly and the control panel assembly.
(1) Pull out the volume knob.
(2) Remove the seven screws P attaching the control board.

Control panel assembly

Volume knob

Fig.22

Control panel assembly

P

Control board

P

P

Fig.23

1-14 (No.22029)

2.2 Cassette mechanism assembly

2.2.1 Removing the Play/Record & Clear head

(See Fig.1~3)

(1) While moving the trigger arm on the right side of the head

mount in the direction of the arrow, turn the flywheel R
counterclockwise until the head mount comes ahead and
clicks.

(2) The head turns counterclockwise as you turn the flywheel

R counterclockwise (See Fig.2 and 3).

(3) Disconnect the flexible wire from connector CN31 on the

head amplifier & mechanism control board.
(4) Remove the spring from the back of the head.
(5) Loosen the azimuth screw for reversing attaching the head.
(6) Remove the head on the front side of the head mount.

Cassette mechanism assembly

Fig.1

Head

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Fly wheelR

Trigger armHead mount

Flexible wire

Fly wheel R

Fig.2

Azimuth screw

Head

for reversing

Spring

CN31

Head amplifer & mecha control board

Fig.3

(No.22029)1-15

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2.2.2 Removing the head amplifier & mechanism control board
(See Fig.4)

(1) Turn over the cassette mechanism assembly and remove

the three screws A attaching the head amplifier & mecha­nism control board.

(2) Disconnect the flexible wire from connector CN31 on the

head amplifier & mechanism control board.

(3) Disconnect connector CN32 of the head amplifier & mech-

anism control board from connector CN1 on the reel pulse
board.REFERENCE: If necessary, unsolder the 4-pin wire
soldered to the main motor.

2.2.3 Removing the main motor
(See Fig.4~7)

(1) Remove the two screws B .
(2) Half raise the motor and remove the capstan belt from the

motor pulley.

ATTENTION:

Be careful to keep the capstan belt from grease. When reas­sembling, refer to Fig.6 and 7 for attaching the capstan belt.

Head amplifier & mecha control board

Main motor assembly

Capstan belt

Fig.5

Main motor assembly

CN31

Flexible wire

A

AA

Fig.4

CN32

4pin wire

B

Main motor assembly

Motor pulley

Capstan belt

Fig.6

Main motor assembly

Fly wheel

1-16 (No.22029)

Capstan belt

Motor pulley

Fig.7

2.2.4 Removing the flywheel

(See Fig.8, 9)

• Prior to performing the following procedure, remove the head

amplifier & mechanism control board and the main motor as­sembly.
(1) From the front side of the cassette mechanism, remove the

slit washers attaching the capstan shaft L and R. Pull out
the flywheels backward.

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Fly wheel R Fly wheel L

Fig.8

Fly wheel R

Capstan shaft R Capstan shaft L

Slit washer

Fig.9

2.2.5 Removing the reel pulse board and solenoid

(See Fig.10)

• Prior to performing the following procedure, remove the head amplifier & mechanism control board.

(1) Remove the screw C.
(2) Release the tab a, b, c, d and e retaining the reel pulse board.
(3) Release the tab f and g attaching the solenoid on the reel pulse board.
(4) The reel pulse board and the solenoid come off.

d

Reel pulse board

Solenoid

a

bc

Fly wheel L

g

f

C

e

Fig.10

(No.22029)1-17

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r

r

2.2.6 Reattaching the Play/ Record & Clear head
(See Fig.11~13)

(1) Reattaching the head mount assembly.

a) Change front of the direction cover of the head

mount assembly to the left (Turn the head forward).

b) Fit the bosses O', P', Q', U' and V' on the head mount

assembly to the holes P and V, the slots O, U and Q
of the mechanism sub assembly (See Fig.11 to 13).

CAUTION:

To remove the head mount assembly, turn the direction
cover to the left to disengage the gear. If the gear can not
be disengaged easily, push up the boss Q' slightly and
raise the rear side of the head mounts slightly to return

the direction lever to the reversing side.
(2) Tighten the azimuth screw for reversing.
(3) Reattach the spring from the back of the Play/ Record &

Clear head.

(4) Connect the flexible wire to connector CN31 on the head

amplifier & mechanism control board.

U' Q'

Head mount assembly

Head mount assembly

O'

Fig.11

P'

P'

V'

V'

Direction cove

Spring

Flexible wire

V

O

P

Q

Head

Direction cove

U

Fig.12

Azimuth screw for reversing

Head mount

1-18 (No.22029)

CN31

Fig.13

Head amplifier &

mechanism control board

3.1 Adjustment method

V

V

a

)

e

t

F

r

8

t

e

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SECTION 3

Adjustment

Measurement Instruments Required for
Adjustment

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

2. Attenuator impedance : 600

3. Electronic voltmeter

4. Distortion meter

5. Frequency counter

6. Wow & flutter meter

7. Test tape
VT703L : Head azimuth
VT712 : Tape speed and running unevenness
(3kHz)
VT724 : Reference level (1kHz)

8. Blank tape
TYPE : AC-225
TYPE : AC-514

9. Torque gauge : For play and back tension
FWD(TW2111A), REV(TW2121a) and
FF/REW(TW2231A)

10. Test disc: CTS-1000

Measurement conditions
Power supply voltage

AC 230V ~ , 50Hz
Reference output : Speaker : 0.775V/4
: Headphone : 0.077V/32
Reference frequency and
input level ------------------------------ 1kHz, AUX : -8dBs
Measurement output terminal ------- at Speaker J3002
Load resistance --------------------------- 4

Radio Input signal

AM frequency --------------------------------------- 400Hz
AM modulation ---------------------------------------- 30%
FM frequency --------------------------------------- 400Hz
FM frequency deviation ------------------------ 22.5kHz

Tuner section

FM tuning range: 87.5MHz~108.00MHz
AM tuning range: 522kHz~1,629kHz

Voltage applied to tuner +B : DC5.7
VT : DC 12
Reference measurement
output 26.1mV(0.28V)/3
Input positions AM : Standard loop antenn
FM : TP1 (hot) and TP2 (GND

Standard measurement position of volume

Function switch to Tap
Beat cut switch to Cu
Super Bass/Active hyper Bass to OF
Bass Treble to Cente
Adjustment of main volume to reference output
VOL : 2

Precautions for measurement

1. Apply 30pF and 33k to the IF sweeper output
side and 0.082 F and 100k 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 MIX adjustment.

5. Since a fixed coil is used, there is no need to adjus
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 carefully.

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

8. For connecting a dummy resistor when measuring
the output, use the wire with a greater code size.

9. Whenever any mixed tape is used, use the band
pass filter (DV-12).

(No.22029)1-19

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3.2 Cassette mechanism adjustment

Head azinuth
adjustment screw
(Forward side)

Mecha control board

Head azinuth
adjustment screw
(Reverse side)

SW1

SW2

Head azinuth
adjustment screw
(Forward side)

Head azinuth
adjustment screw
(Reverse side)

CN31

R/P head, Erase head

P1

D1

VR37

R371

CN1

FW100

SW5

Motor speed
VR37

BIAS adjust

VR31

C308

R327

VR31

R313

Q302

R315

C316

C319

C221

R314

L301

C121

C314

R104

Q305

C313

D340

C310

R304

R310

C107

L303

R102

R121

R221

R303

R335

R353

R339

R108

C113

R302

Q343

C301

C103

C207

R301

Q342

C105
C205

C304

R208

C106

R101

C104

R306

R106

Q344

CN34

C306

R344

R105

C102

R205

R110

Q345

R345

C307

R336

C340

C206

R346

R206

W1

R107

Q346

R305

C110

R210

C300

C341

R109

R372

Q372

C371

CN33

IC32

R116

C109

CN31

Q371

C101

C374

R376

R216

Q375

C376

R204

R201

C202

C204

C201

CN32

C203

R202

C210

R340

C331

R342

R347

Q347

SW6

R343

R341

IC33

IC1

D375

Q376

R338

R375

R337

C213

C342

C209

W1

R207

1-20 (No.22029)

3.2.1 Mechanism section

t

W

t

t

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Item Condition Measurement method Ref.value

Head
azimuth

Test tape
: VT703L (8kHz)
Output terminal
: Speaker out

1.Playback the test tape VT703L (8kHz).

2.Adjust to maximum output level by azimuth
adjustment screw for forward side and reverse
side.

Maximum
output

3.This adjustment is adjust by adjustment screw
of forward side and adjustment screw of reverse
side.

Tape speed

Test tap
: VT712 (3kHz)
Output terminal

Playback the test tape VT712 (3kHz) at end of
forward side,adjust to 2,940~3,90Hz indication
of frequency counter by VR37.

2,940 ~
3,090Hz

: Speaker out or
Headphone out

Adjustmen

position

Only adjus
at changed
head

VR37

Item Condition Measurement method Ref.value

Tape speed
diviation at
FWD/REV

Test tape
: VT712 (3kHz)
Output terminal

Playback the test tape VT712 (3kHz) at end
of forward and reverse, tape speed deviation
should be less than 6.0Hz.

Leass than

6.0Hz

: Speaker out or
Headphone out

ow & Flutter Playback the test tape VT712 (3kHz) at

Test tape
: VT712 (3kHz)
Output terminal

start of forward and reverse,Wow & Flutter
are should be less than 0.25%(WRMS).

Less than

0.25%
(WRMS)

: Speaker out or
Headphone out

Adjustmen

position

VR31

(No.22029)1-21

UX-J60

R

t

3.2.2 Electrical adjustment

Item Condition Measurement method Ref.value

Recording
BIAS
adjustment

Forward or Reverse
Test tape
:AC-514 TYPE
:AC-225 TYPE
Output terminal
Recording head

1.Set the test tape(AC-514 TYPE and
AC-225 TYPE ), then make REC/PAUSE
condition.

2.Connect 100 to recording head by series,
then connect to VTVM for measurement the
current.

AC-225
:4.20 A
AC-514
:4.0 A

3.After setting, start the recording by release
the PAUSE, in this time bias current adjust
to next fig. by VR31 for Lch and VR32 for
Rch.

4.0 A (TYPE ) and 4.20 A (TYPE ).

R/P
playback
frequency
response

Reference frequency
: 1kHz / 10kHz
(Reference: -20dB)
Test tape
: AC-514 TYPE
Input terminal
: OSC IN

1.Set the test tape (AC-514 TYPE ), then
make REC/PAUSE condition.

2.Release the PAUSE, then start recording
the 1kHz and 10kHz of reference frequency
from oscillator.

3.Playback the recorded position, 1kHz and
10kHz output deviation should -1dB 2dB

Output
deviation
1kHz/10kHz
:-1dB 2dB

to readjust by VR31 for Lch and VR32 for
Rch.

Adjustment

position

VR31

VR31

3.2.3 Electrical response confirmation

Item Condition Measurement method Ref.value

ecording
bias
current

Forward or Reverse
Test tape
: TYPE (AC-514)
Measurement
terminal
: BIAS test point on
printed circuit board

Erase
current
(reference
value)

Forward or Reverse
Rec condition
Test tape
: AC-514 TYPE
: AC-225 TYPE
Measurement
terminal
: Both side of Erase
head

1.Change BIAS1 and 2, confirm the frequency
should be change.

2.Set the test tape (AC-514 TYPE ), then
make REC/PAUSE condition.

3.Confirm the frequency should 100Hz 6kHz
at BIAS test point on printed circuit board.

1.Set the test tape (AC-514 TYPE and
AC-225 TYPE ), then make REC/PAUSE
condition.

2.Release the PAUSE to REC condition,
connect 1W to ERASE head by series, then
confirm the erase current at both side of
erase head.

Adjustmen

position
100 kHz
6 kHz

TYPE
: 120 mA
TYPE
: 75 mA

1-22 (No.22029)

3.3 Flow of functional operation until TOC read (CD)

Power ON

Power Key

Slider turns REST
SW ON.

Automatic tuning
of TE offset

UX-J60

Check Point

Check that the voltage at the pin 5

of CN801 is 0V?

VREF

Tracking error waveform at TOC reading

pin 20 of
IC601(TE)

Approx

1.7V

Tracking
servo

Disc start
to rotate

off

Automatic measurement
of TE amplitude and
automatic tuning of
TE balance

Approx.1sec

Tracking
servo ON

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

pin2 of IC601 is 4.4V?

Confirm that the Focus error
S-cuve, ie at the pin23 of
IC601 is approx.2Vp-p

Confirm that the siganl from
pin 5,6 of IC801 is a 2V
accelerated pulse with approx.
700ms.

Confirm the waveform of
the Tracking error signal
at the pin20 of IC601
(See fig-1)

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 eye-pattern
at the lead of TP1

(No.22029)1-23

UX-J60

3.4 Maintenance of laser pickup (CD)

(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.

• The level of RF output (EFM output: ampli tude of eye
pattern) will be low.

Is the level of

RFOUT under

1.25V 0.22Vp-p?

NO

Replace it.

YES

O.K

(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 is adjusted while the pick­up is functioning normally, the laser pickup may be
damaged due to excessive current.

3.5 Replacement of laser pickup (CD)

Turn off the power switch and, disconnect the
power cord from the ac outlet.

Replace the pickup with a normal one.(Refer
to "Pickup Removal" 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 at TP1.

Finish.

1-24 (No.22029)

Description of major ICs

4.1 AN22000A-W (IC601) : RF & SERVO AMP

• Terminal layout

• Block diagram

RFOUT

RF_EQ

32

31

30

29

27

28

AMP

AMP

AMP

AMP17GCA BCA

+

-

ACBDPDF

323130292827262524232221201918

123456789

LD

PD

PDE

TBAL

RFN

VCC

RFIN

CAGC

RFOUT

624754 8

RFIN

AGC

NRFDET

GCA BCA

GCA BCA

GCA BCA

FBAL

GCTRL

FEOUT

FEN

10111213141516

ARF

CEA

CBDO

3TOUT

11 12

BDO

TEN

TEOUT

BDO

COFTR

SUBT

SUBT

TEBPF

OFTR

VDET

VREF

17

GND

RFDET

13 14

OFTR

3TENV

VDET

SECTION 4

9

10

15

22

-

+

-

+

-

+

23

21

20

19

18

2

LD

• Pin function

Pin

Symbol I/O Function

No.

1 PD I APC Amp. input terminal
2 LD O APC Amp. output terminal
3 VCC - Power supply terminal
4 RFN I RF adder Amp. inverting input terminal
5 RFOUT O RF adder Amp. output terminal
6 RFIN I AGC input terminal
7 CAGC I Input terminal for AGC loop filter capacitor
8 ARF O AGC output terminal
9 CEA I Capacitor connecting terminal

for HPF-Amp.
10 3TOUT O 3 TENV output terminal
11 CBDO I Capacitor connecting terminal for envelope

detection on the darkness side
12 BDO O BDO output terminal
13 COFTR I Capacitor connecting terminal for envelope

detection on the light side
14 OFTR O OFTR output terminal
15 NRFDET O NRFDET output terminal
16 GND - Ground
17 VREF O VREF output terminal
18 VDET O VDET output terminal
19 TEBPF I VDET output terminal
20 TEOUT O TE Amp. output terminal
21 TEN I TE Amp. inverting input terminal
22 FEN I FE Amp. inverting input terminal
23 FEOUT O FE Amp. output terminal
24 GCTL O GCTL & APC terminal
25 FBAL O FBAL control terminal
26 TBAL O TBAL control terminal
27 E I Tracking signal input terminal 1
28 F I Tracking signal input terminal 2
29 D I Focus signal input terminal 4
30 B I Focus signal input terminal 3
31 C I Focus signal input terminal 2
32 A I Focus signal input terminal 1

UX-J60

GCTL26TBAL

25 16 3

FBAL

PD

1

(No.22029)1-25

UX-J60

4.2 HA12238F (IC32) : R/P Equalizer

• Pin layout

PB-NF1(L)

TEST 2

RIP

PBIN(l)

REC Return

GND

PBIN(R)

NC

TEST 3

PB-NF1(R)

31

32

33

34

35

36

37

38

39

40

PB-NF2(L)

PB-EQ(L)

30

29

­+

Return SW

Return SW

+

-

EQ OUT(L)

TAI(L)

28

27

MUTE

MUTE

NC

PB OUT(L)

26

25

REC IN(L)

ALC(L)

24

23

NC

22

EQ

EQ

REC OUT(L)

21

ALC

TEST

20

(Open for nomal use)

19

Iraf

18

GND

ALC DET

17

16

Vcc

REC MUTE OFF/ON

15

MUTO ON/OFF

14

REC RETURN ON/OFF

13

TEST 4

12

ALC ON/OFF

11

1

2

PB-EQ(R)

PB-NF2(R)

3

4

TAI(R)

EQOUT(R)

5

6

NC

PB OUT(R)

7

8

ARC(R)

REC IN(R)

9

10

NC

REC OUT(R)

1-26 (No.22029)

• Pin function

Pin No. Symbol Function

1 PB-NF2(R) PB EQ feed back
2 PB-EQ(R) NAB output
3 EQOUT(R) EQ output
4 TAI(R) Tape input
5 PBOUT(R) PB output
6 NC NC pin
7 REC IN(R) REC-EQ input
8 ALC(R) ALC(R) signal out put

9 NC NC pin
10 REC OUT(R) REC output
11 ALC ON/OFF Mode control input
12 TEST4 TEST pin
13 REC Return ON/OFF Mode control input
14 MUTE ON/OFF Mode control input
15 REC Return ON/OFF Mode control input
16 Vcc Vcc Pin
17 ALC DET ALC detection signal out put
18 GND GND pin
19 I REF Equalizer reference current input
20 Test mode Test modepin
21 REC OUT(L) REC output
22 NC NC pin
23 ALC(L) ALC(L) signal out put
24 REC IN(L) REC-EQ input
25 NC NC pin
26 PBOUT(L) PB output
27 TAI(L) Tape input
28 EQOUT(L) EQ output
29 PB-EQ(L) NAB output
30 PB-NF2(L) PB EQ feed back
31 PB-NF1(L) PB EQ feed back
32 TEST2 TEST pin
33 RIP Ripple fillter
34 PBIN(L) PB input
35 REC-RETURN REC Return
36 GND GND pin
37 PBIN(R) PB input
38 NC NC pin
39 TEST3 TEST pin
40 PB-NF1(R) PB EQ feed back

UX-J60

(No.22029)1-27

UX-J60

4.3 GP1UM261XK (IC750) : Receiver

• Pin layout

Vout

• Block diagram

GND

Vcc

4.4 HA17758A (IC902,IC944) : Dual Operational Amp

• Pin layout

8

7

6

5

VCC

Vout2

Vin(-)2

Vin(+)2

Vout1

Vin(-)1

Vin(+)1

VEE

1

1

- +

2

2

+ -

3

4

B.P.F.LimiterAmp

Demodulator

Integrator

Comparator

GND Vdd Vout

1-28 (No.22029)

4.5 KIA7810API (IC942) : Regulater

• Pin Layout

• Block Diagram

UX-J60

1

R23R17R22

INPUT

Z1

R12

R11

Q12

Q13

R18

Q2

Q18

Q11R1

R2

R3

Q17

Q1

Q3

Q4

Q19

Q6

R7

Q14

Q5

Q19

C1

Q7

Q9 Q8

Q9

Q11-1

R10

R15

Q10

Q15

R14

R16

R20

R21

Q16

3

OUTPUT

R13

R4

R5 R6 R8

2

COMMON(GND)

(No.22029)1-29

UX-J60

4.6 KIA78R08PI (IC943) :Regulater

• Pin Layout

• Block Diagram

1 2

V1N

V1N

Control

OUTPUT ON/OFF

4

BANDGAP

REFERENCE

CONTROL

ASO

PROTECTION

OVER HEAT
PROTECTION

3

GND

VO

-

+

1-30 (No.22029)

4.7 KIA78S06P-T (IC932) : Regulator

•Pin layout

1 2 3

• Block diagram

UX-J60

3 INPUT

Z1

Q14

Q1

R9

Q16

Q2 Q7

R11 R10

R1

Q4

Q3

Q6

Q5

R4

Q11

C1

Q10

R2

Q9

Q8

R3

4.8 LB1641 (IC802) : DC Motor driver

•Pin layout •Truth table

1

GND

OUT1

P1

VZ
IN1
IN2

VCC1
VCC2

P2

OUT2

2
3
4
5
6
7
8
9

10

Input Output Mode

IN1 IN2 OUT1 OUT2

0000 Brake
1 0 1 0 CLOCKWISE
0 1 0 1 COUNTER-CLOCKWISE
1100 Brake

Q12

R8

Q13

R7R5R6

1 OUTPUT

2 COMMON

(No.22029)1-31

UX-J60

4.9 LA1838 (IC1): FM AM IF AMP&detector, FM MPX Decoder

• Block Diagram

30

ALC

BUFF

FM
S-METER

FM IF

1

29

AM

OSC

S-CLRVE

PM
DET

2

28

REG

AM
MIX

SD
COMP

AM/FM
IF-BUFF

3

27

FM

RF.AMP

AM IF

4

26

AGC

AM
S-METER

GND

25

24

DET

TUNING
DRIVE

5

6

STEREO
DRIVE

7

22

23

P-DET

VCC

89

VCO
384KHz

21

DECODER
ANIT-BIRDIE

STEREO
5N
SW

10

20

FF
38k

11

18

19

MUTE

FF

/

19k

2

12 13

FF
19k

17 16

/LS

14

PILOT
DET

15

• Pin Function

Pin No. Symbol I/O Function

1 FM IN I This is an input terminal of FM IF signal.
2 AM MIX O This is an out put terminal for AM mixer.
3 FM IF I Bypass of FM IF
4 AM IF I Input of AM IF Signal.
5 GND - This is the device ground terminal.
6
7

TUNED

STEREO

O When the set is tunning,this terminal becomes "L".

O Stereo indicator output. Stereo "L", Mono: "H"
8 VCC - This is the power supply terminal.
9 FM DET - FM detect transformer.

10 AM SD - This is a terminal of AM ceramic filter.
11 FM VSM O Adjust FM SD sensitivity.
12 AM VSM O Adjust AM SD sensitivity.
13 MUTE I/O When the signal of IF REQ of IC121(LC72131) appear, the signal of FM/AM IF output. //Muting

control input.
14
15

FM/AM

MONO/ST

I Change over the FM/AM input. "H" :FM, "L" : AM

O Stereo : "H", Mono: "L"
16 L OUT O Left channel signal output.
17 R OUT O Right channel signal output.
18 L IN I Input terminal of the Left channel post AMP.
19 R IN I Input terminal of the Right channel post AMP.
20 RO O Mpx Right channel signal output.
21 LO O Mpx Left channel signal output.
22 MPX IN I Mpx input terminal
23 FM OUT O FM detection output.
24 AM DET O AM detection output.
25 AM AGC I This is an AGC voltage input terminal for AM
26 AFC - This is an output terminal of voltage for FM-AFC.
27 AM RF I AM RF signal input.
28 REG O Register value between pin 26 and pin28 besides the frequency width of the input signal.
29 AM OSC - This is a terminal of AM Local oscillation circuit.
30 OSC BUFFER O AM Local oscillation Signal output.

1-32 (No.22029)

4.10 LA6541-X (IC801) : Servo driver

• Pin layout & Block diagram

Vcc Vref Vin4 Vg4 Vo8 Vo7

24 23

22

21

11k
ohm

UX-J60

20

19

Gnd

Vcc

Vo6 Vo5 Vg3 Vin3 Cd Res

18

17 16

15

14

13

11k
ohm

- +

- +

Level
shift

Level
shift

B T L
driver

B T L
driver

11k
ohm

1

Vcc Mute Vin1 Vg1 Vo1 Vo2 Vo3 Vo4 Vg2 Vin2 Reg

2

3456

Gnd

78 9101112

• Pin function

Pin No. Symbol Description

1 Vcc Power supply (Shorted to pin 24)
2 Mute All BTL amplifier outputs ON/OFF
3 Vin1 BTL AMP 1 input pin
4 Vg1 BTL AMP 1 input pin (For gain adjustment)
5 Vo1 BTL AMP 1 input pin (Non inverting side)
6 Vo2 BTL AMP 1 input pin (Inverting side)
7 Vo3 BTL AMP 2 input pin (Inverting side)
8 Vo4 BTL AMP 2 input pin (Non inverting side)

9 Vg2 BTL AMP 2 input pin (For gain adjustment)
10 Vin2 BTL AMP 2 input pin
11 Reg Out External transistor collector (PNP) connection. 5V power supply output
12 Reg In External transistor (PNP) base connection
13 Res

Reset output
14 Cd Reset output delay time setting (Capacitor connected externally)
15 Vin3 BTL AMP 3 input pin
16 Vg3 BTL AMP 3 input pin (For gain adjustment)
17 Vo5 BTL AMP 3 output pin (Non inverting side)
18 Vo6 BTL AMP 3 output pin (Inverting side)
19 Vo7 BTL AMP 4 output pin (Inverting side)
20 Vo8 BTL AMP 4 output pin (Non inverting side)
21 Vg4 BTL AMP 4 output pin (For gain adjustment)
22 Vin4 BTL AMP 4 output pin
23 Vref Level shift circuit's reference voltage application
24 Vcc Power supply (Shorted to pin 1)

B T L
driver

B T L
driver

Level
shift

Level
shift

11k
ohm

out

RESET

Regulator

Reg
In

(No.22029)1-33

UX-J60

4.11 LC72136N (IC2) : PLL frequency synthesizer

• Pin layout

1

XT

FM/AM

CE

DI

CLOCK

DO

FM/ST/VCO

AM/FM

SDIN

2
3
4
5
6
7
8
9
10
11

22
21
20
19
18
17
16
15
14
13
12

XT
GND
LPFOUT
LPFIN
PD
VCC
FMIN
AMIN

IFCONT
IFIN

• Block diagram

1

22

16

15

3

4

5

6

17

21

1/2

C

I/F

2B

Power

on

Reset

Data Shift Register & Latch

782

• Pin function

Pin

No.

Symbol I/O Function

1 XT I X'tal oscillator connect (75kHz)
2FM

/AM O LOW:FM mode

3 CE I When data output/input for 4pin(input)

and 6pin(output): H

4 DI I Input for receive the serial data from

controller
5 CLOCK I Sync signal input use
6 DO O Data output for Controller Output port
7 FM/ST/VCO O Low: MW mode
8AM

/FM O Open state after the power on reset

9 LW I/O Input/output port

10 MW I/O Input/output port
11 SDIN I/O Data input/output
12 IFIN I IF counter signal input

Reference

Driver

Swallow Counter

Swallow Counter

1/16,1/17 4bit

1/16,1/17 4bit

12bit

Programmable

DriverS

Phase

Detector

Charge Pump

Unlock

Detector

Universal

Counter

11

13

Pin

Symbol I/O Function

No.

18

19

20

12

13 IFCONT O IF signal output
14 - Not use
15 AMIN I AM Local OSC signal output
16 FMIN I FM Local OSC signal input
17 VCC - Power suplly(VDD=4.5-5.5V)

When power ON:Reset circuit move

18 PD O PLL charge pump output (H: Local

OSC frequency Height than Refer­ence frequency.L: Low Agreement:

Height impedance)
19 LPFIN I Input for active lowpassfilter of PLL
20 LPFOUT O Output for active lowpassfilter of PLL
21 GND - Connected to GND
22 XT

I X'tal oscillator(75KHz)

1-34 (No.22029)

4.12 LC72723(IC3): RDS demodulation

/

•Pin layout

UX-J60

VREF

MPXIN

Vdda

Vssa

FLOUT

CIN

TES

XOUT

• Block Diagram

1

2

3

4

5

6

7

8

+5V

Vdda

Vssa

MPXIN

TEST

RDS-ID/READY

16

RDCL

15

RDDA

14

RST

13

MODE

12

Vddd

11

Vssd

10

XIN

9

REFERENCE

VOLTAGE

ANTI ALIASING

FILTER

TEST

VREF

57kHz

(SCF)

BPF

FLOUT

SMOOTHING

FILTER

CLK(4.332MHz)

OSC

VREF

CIN

+

PLL

(57kHz)

-

CLOCK

RECOVERY

(1187.5Hz)

DATA

DECODER

RAM

(128-bits)

RDS-ID

DETECT

Vddd

Vssd

RDDA

RDCL

MODE

RST

RDS-ID

READY

+5V

XIN

XOUT

• Pin functions

Pin No. Symbol I/O Function

1 VREF O Reference voltage output (Vdda/2)
2 MPXIN I Baseband (multiplexed) signal input
3 Vdda - Analog power supply (+5V)
4 Vssa - Analog ground
5 FLOUT O Subcarrier input (filter output)
6 CIN I Subcarrier input (comparator input)
7 TEST I Test input
8 XOUT O Crystal oscillator output (4.332MHz)

9 XIN I Crystal oscillator input (exeternal reference input)
10 Vssd - Digtal ground
11 Vddd - Digtal power supply
12 MODE I Read mode setting (0:master, 1:slave)
13 RST I RDS-ID/RAM reset (positive polarity)
14 RDDA O RDS data output
15 RDCL I/O RDS clock output (master mode)/RDS clock input (slave mode)
16 RDS-ID/READY O RDS-ID/READY output (negative polarity)

(No.22029)1-35

UX-J60

4.13 LC75345M-X (IC901) : E.volume

• Pin layout

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19

• Block diagram

CL

DI

VDD

CE

ROPOUT

RINM

VSS

OPOUT

LSELO

RINP

LINM

LVRIN

ROOUT

RSB

LINP

LOUT

LTRE

RBASS2

RBASS1

LSB

LBASS2

RTRE

RVRIN

LTRE

LBASS1

LBASS1

RSELOR5R4

LVRIN

LSELO

LBASS2

LSB

L5

R3

L4

LOUT

R2

L3

R1

L2

Vref

181716151413121110987654321

L1

L5

L4

L3

L2

L1

Vref

R1

R2

R3

R4

R5

14

15

16

17 18

19

20

21

22 23

24

13

12

11

LVref

RVref

CONTROL

CIRCUIT

LOGIC

CIRCUIT

CONTROL

CIRCUIT

10

9

8

CCB

INTERFACE

7

6

LINP

5

LINM

LOPOUT

34

VSS

2

CE

1

DI

36

CL

35

VDD

34

ROPOUT

33

RINM

32

RINP

1-36 (No.22029)

25

RESLO

26

RVRIN

27

RTRE

28

RBASS1

29

RBASS2RSB

30

31

ROUT

• Pin function

Pin No. Symbol Function

1 DI Serial data and clock input pin for control.

2 CE Chip enable pin.

3 VSS Ground pin.

4 LOPOUT Output pin of general-purpose operation amplifier.

5 LINM Non-inverted input pin of general-purpuse operation amplifier.

6 LINP Non-inverted input pin of general-purpuse operation amplifier.

7 LOUT ATT + equalizer output pin.

8 LSB Capacitor and resistor connection pin comprising filters for bass and super-bass band.

9 LBASS2 Capacitor and resistor connection pin comprising filters for bass and super-bass band.
10 LBASS1 Capacitor and resistor connection pin comprising filters for bass and super-bass band.
11 LTRE Capacitor and resistor connection pin comprising treble band filter.
12 LVRIN Volume input pin.
13 LSELO Input selector output pin.
14 L5 Input signal pin.
15 L4 Input signal pin.
16 L3 Input signal pin.
17 L2 Input signal pin.
18 L1 Input signal pin.
19 Vref 0.5 x VDD voltage generation block for analog ground.
20 R1 Input signal pin.
21 R2 Input signal pin.
22 R3 Input signal pin.
23 R4 Input signal pin.
24 R5 Input signal pin.
25 RSELO Input selector output pin.
26 RVRIN Volume input pin.
27 RTRE Capacitor connection pin comprising treble band filter.
28 RBASS1 Capacitor and resistor connection pin comprising filter for bass and super-bass band.
29 RBASS2 Capacitor and resistor connection pin comprising filter for bass and super-bass band.
30 RSB Capacitor and resistor connection pin comprising filter for bass and super-bass band.
31 ROUT ATT + equalizer output pin.
32 RINP Non inverted input pin of general-purpose operation amplifier.
33 RINM Non inverted input pin of general purpose operation amplifier.
34 ROPOUT Output pin of general-purpose operation amplifier.
35 VDD Supply pin.
36 CL Serial data and clock input pin for control.

UX-J60

(No.22029)1-37

UX-J60

4.14 MN101C57DFB (IC931) : System micon

• Pin Layout

75 ~ 51

76 ~ 100

50 ~ 26

1 ~ 25

• Pin function

Pin No. Symbol I/O Function

1~3 VLC1~VLC3 - LCD BIAS VOLTAGE

4,5 NC - -

6 MLD O CD command ready signal
7 MDATA O CD data
8 MCLK O CD data clock

9 _XRST O CD reset
10 STAT I CD status input port
11 VSS - GROUND
12 OSC1 - MAIN OSC
13 OSC2 - MAIN OSC
14 MMOD - GROUND(10k ohm pull down)
15 XI - SUB OSC(Not use, connect to Vss)
16 XO - SUB OSC(Not use, open)
17 VDD - 5V
18 NRST - RESET
19 VDD - 5V
20 SDATA I/O Serial Data(Vol & Tape IC/Tuner)
21 _MPX I FM Stereo Detection ('L'=STEREO)
22 SCK O Serial Clock(Vol IC/Tape IC)
23 PERIOD O Tuner PLL Strobe(TUST/CE)
24 QRIN I Q-code/RDS data input(SUBQ/RDDA)
25 SQCK O Q-code serial clock
26 VOLCE O Volume Chip Enable
27 _AHB O Active Hyper Bass('L'=ON)
28 _SPKMUTE O Speaker mute
29 F_TU O Tuner Function ('H'=TUNER)
30 F_CD O CD Function ('H'=CD)
31 _SURR O SURROUND IC
32 SMUTE O System mute
33 RDSCK I RDS clock
34 BLKCK I Block clock input port
35 FLAG I Error Correction Count
36 _PROTR I Protector
37 _REM I Remote control input
38 BUP I Back up power detect('H'=BACKUP)
39 VDD - 5V
40 VREF+ - 5V

1-38 (No.22029)

Pin No. Symbol I/O Function

41 DOOR_RST I REST/CLOSE switch detect port
42 SAFETY0 I Irregular voltage detection 0
43 TAPE1 I Tape Switch 0
44 TAPE0 I Tape Switch 1
45 SAFETY1 I Irregular voltage detection 1
46 STTA O Tape IC Strobe
47 BCTL O Switched 5V control('H'=5Víoff)
48 CDSAFETY I CD safety voltage detect port
49 VREF- - GROUND
50 REEL I Tape End Detection
51 LEDCTL O Power Standby LED control(POUT)
52 KEY1 I Unit Key input 1
53 KEY0 I Unit Key input 0
54 VOLM I Volume Minus
55 VOLP I Volume Plus

56~72 SEG17~SEG33 O SEGMENT OUTPUT

73,74 LED1,LED2 O Back light color control(DIMCTL)
75,76 SEG34,SEG0 O SEGMENT OUTPUT

77 MODEL I Model detection
78 CLOSE O Motor driver for door close
79 OPEN O Motor driver for door open
80 MUTE O BTL mute control port

81~96 SEG1~SEG16 O SEGMENT OUTPUT

97~100 COM3~COM0 - LCD BIAS GROUND

UX-J60

(No.22029)1-39

UX-J60

A

R

4.15 MN662748RPMFA (IC651) : Digital servo & Digital signal processer

• Pin layout

20 ~ 1

• Block diagram

LRCKIN(MSEL)
BCLK(SSEL)
SRDATAIN
(PSEL)

IOSEL

CLVS

CRC

BLKCK

CLDCK

SBCK

SUBC

DEMPH

RESY

FLAG6(RESY)

SSEL
SQCK
SUBQ
AVDD2

AVDD2

PCK

EFM

PLLF
DSLF
IREF
DRF
ARF
RSEL
PSEL

MLD

MCLK

MDATA

CK384(EFM)

VCOF
BYTCK
SMCK
FCLK
CSEL
MSEL
X2

X1

ÊSTAT

21

~

40

41 ~ 60

DIGITAL
DEEMPHSIS

SUB
CODE
BUFFER

DSL.
PLL
VCO

VCO

ITUNING
GENERATION
PITCH
CONTROL

80

~

61

8TIMES
OVER SAMPUNC
DIGITAL FILTER

EFM
DEMODULATION

SYNC
INTERPOLATION

SUBCODE
DEMODULATION

MICRO
COMPUTER
INTERFACE

A/D

COVERTER

1BIT
DAC
LOGIC
S

16k
SRAM

CIRC
ERROR
CORRECTION
DEINTERLEVE

CLV
SERVO

INPUT

PEM
(R)

PEM
(L)

D/A
CONVERTER

OUTPUT

DIGITAL
AUDIO
INTERFASE

DIGITAL
AUDIO
INTERFASE

INTER POLATION
SOFT MUTING DIGITAL
ATTENUATION
PEAK DETECTIVE
AUTO CUE

PORT

SERVO
TIMING GENERATOR

AVSS1
AVDD1
OUTR

OUTL

FLAG
IPFLAG

TX

ECM

PC

LRCK
SRDAT
BCLK
DMUTE

TRKV
KICK
VREF
TRVST
ECS
TVD
TRD
FOD
TBAL
FBAL
TOFS
TES
/TLOCK
/FLOCK
PLAY
LDON
WVEL
SENSE

1-40 (No.22029)

D

/

D

V

V

V

R

V

S

D

D

S

S

S

D

D

T

S

1

1

F

/

E

T
E
S
T

R

T

F

E

E
N
V

T
R
C
R
S

B

V

D

D

O

E
T

/
R
F
D
E

O
F
T

• Pin function

Pin

Symbol I/O Function

No.

1 BCLK O Not used
2 LRCK O Not used
3 SRDATA O Not used
4 DVDD1 - Power supply (Digital)
5 DVSS1 - Connected to GND
6 TX O Digital audio interface output
7 MCLK I CPU command clock signal input

(Data is latched at signal's rising point)
8 MDATA I CPU command data input
9 MLD I CPU command load signal input

10 SENSE O Sense signal output
11 FLOCK O Focus lock signal output Active :Low
12 TLOCK O Tracking lock signal output Active :Low
13 BLKCK O sub-code/block/clock signal output
14 SQCK I Outside clock for sub-code Q resister in-

put

15 SUBQ O Sub-code Q -code output
16 DMUTE Connected to GND
17 STATUS O "Status signal

(CRC,CUE,CLVS,TTSTOP,ECLV,ECLV

,SQOK)"

18 RST I Reset signal input (L:Reset)
19 SMCK - Not used
20 PMCK - Not used
21 TRV O Traverse enforced output
22 TVD O Traverse drive output
23 PC - Not used
24 ECM O Spindle motor drive signal (Enforced

mode output) 3-State

25 ECS O "Spindle motor drive signal (Servo error

signal output)"

26 KICK O Kick pulse output
27 TRD O Tracking drive output
28 FOD O Focus drive output
29 VREF I "Reference voltage input pin for D/A out-

put block (TVD,FOD,FBA,TBAL)"

30 FBAL O Focus Balance adjust signal output
31 TBAL O Tracking Balance adjust signal output
32 FE I Focus error signal input (Analog input)
33 TE I Tracking error signal input (Analog input)
34 RF ENV I RF envelope signal input (Analog input)
35 VDET I Vibration detect signal input (H:detect)
36 OFT I Off track signal input (H:off track)
37 TRCRS I Track cross signal input
38 RFDET I RF detect signal input (L:detect)
39 BDO I BDO input pin (L:detect)

Pin

Symbol I/O Function

No.

40 LDON I Laser ON signal output (H:on)
42 TES O Tracking error shunt signal output

(H:shunt)
41 PLAY - Not used
43 WVEL - Not used
44 ARF I RF signal input
45 IREF I Reference current input pin
46 DRF I Bias pin for DSL
47 DSLF I/O Loop filter pin for DSL
48 PLLF I/O Loop filter pin for PLL
49 VCOF - Not used
50 AVDD2 - Power supply (Analog)
51 AVSS2 - Connected to GND (Analog)
52 EFM - Not used
53 PCK - Not used
54 PDO - Not used
55 SUBC - Not used
56 SBCK - Not used
57 VSS - "Connected to GND (for X'tal oscillation

circuit)"
58 XI I Input of 16.9344MHz X'tal oscillation cir-

cuit
59 X2 O Output of X'tal oscillation circuit
60 VDD - Power supply (for X'tal oscillation circuit)
61 BYTCK - Not used
62 CLDCK - Not used
63 FLAG - Not used
64 IPPLAG - Not used
65 FLAG - Not used
66 CLVS - Not used
67 CRC - Not used
68 DEMPH - Not used
69 RESY - Not used
70 IOSEL - pull up
71 TEST - pull up
72 AVDD1 - Power supply (Digital)
73 OUT L O Lch audio output
74 AVSS1 - Connected to GND
75 OUT R O Rch audio output
76 RSEL - pull up
77 CSEL - Connected to GND
78 PSEL - Connected to GND
79 MSEL - Connected to GND
80 SSEL - Pull up

UX-J60

(No.22029)1-41

UX-J60

4.16 STK432-070 (IC940) : 2ch AF power amp

• Pin Layout

• Block Diagram

8

9

15

R13

TR15

TR16

R14

14

TR14

TR9

TR11

C2 R11

TR12

R8

TR10

R12

TR13

R10

R9

11
10
6

7
12

TR7 TR8

R7

1-42 (No.22029)

R6

TR5

TR4

TR6

R5

R4R3C1

D1

TR2

R1

R2TR3

TR1

412

5

13

SUB

UX-J60

(No.22029)1-43

UX-J60

VICTOR COMPANY OF JAPAN, LIMITED

AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.22029)

Printed in Japan

200303WPC