JVC UX M5 Service Manual

SERVICE MANUAL

MICRO COMPONENT SYSTEM

UX-M5

Area suffix

UP -------------------------- Korea

UX-M5

STANDBY/ON

TUNER

TAPE

/BAND

/REV.MODE

CD

/RANDOM

PRE DOWN PRE UP

REC

REPEAT

SLEEP

REMAIN

ST/MONO

INTRO

TIMER PROGRAM

DISPLAY

PRE EQ

+

/HBS

MODE

VOLUME

MUTING BEAT CUT

Ð

RM-SUXM5U REMOTE CONTROL

Contents

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

MICRO COMPONENT SYSTEM UX-M5

STANDBY

/ON

DISPLAY

MODE

TIMER

ON/OFF

SET

RANDOM

CD

PROGRAM

ST/MONO

STOP/CLEAR

REPEAT

PHONES

REC

DIRECTION PLAY/PAUSE

AUTO REVERSE

CA-UXM5 SP-UXM5SP-UXM5

1-2
1-3
1-4
1-5
1-14

1-17

CD-R/RW PLAYBACK

OPEN/
CLOSE

REMAIN

BAND REV. MODE

TUNER TAPE

PRESET

FULL LOGIC DECK

SEARCH/TUNING

PRE EQ

INTRO

VOLUME

/HBS

EJECT

Maintenance of laser pickup
Replacement of laser pickup
Trouble shooting
Description of major ICs
Wiring connection

1-18
1-18
1-19
1-20
1-34

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.21170

Jan. 2003

UX-M5

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.

2. About the earth processing for the destruction prevention 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.

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

UX-M5

Conductive material
(conductive sheet) or iron plate

3. Handling the optical pickup

In order to maintain quality during transport and before installation, both sides of the laser diode on the

1.
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

2.
source can easily destroy the laser diode.

4. 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.

Remove solder of the short land on the card wire after replacing the optical pickup. For specific details, refer to
the replacement 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 card wire 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.

5. Attention when traverse unit is decomposed

Connector

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

Short land

Apply solder to the short land before the card wire is disconnected from
the connector on the CD pickup unit.
(If the card 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 after
connecting the card wire.

CD pickup unit

1-3

UX-M5

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

CLASS 1

LASER PRODUCT

WARNING LABEL

1-4

Disassembly method

UX-M5

<Main body section>

Replacement of the fuses and power amplifier IC

Replacing the fuses (See Fig. 1.)

Remove the left side plate according to its
disassembly method. (See Figs. 6 and 7.)

Fuses are located inside the left side plate.

[Caution] Be sure to replace the required fuses
with designated ones.

Fuse(F903)

Fuse(F904)

1.6A 250V

2.5A 250V

Power board

Fuse(F901)

1.6A 250V

Fuse(F902)

2.5A 250V

Fig.1

Replacing the power amplifier IC on

the main board (See Figs. 2 and 3.)

Remove the main board according to its
disassembly method. (See Figs. 18 and 19.)

1.

From the reverse side of the main board, remove
the two screws A retaining the bracket.

(See Fig. 2.)

2.

From the forward side of the main board, remove
the four screws B retaining the bracket.

(See Fig. 3.)

3.

Remove the screw C attaching the power amplifier
IC onto the heat sink. (See Fig. 3.)

4.

In order to replace the power amplifier IC, remove
the solder from the soldered part a on the reverse
side of the main board. (See Fig. 3.)

Soldered part a

Heat sink

Main board (Reverse side)

Fig.2

C

A

Main board

B

Power amplifier IC

(IC402)

Bracket

Fig.3

1-5

UX-M5

Removing the right side plate

(See Figs. 4 and 5.)

1.2.From the right side of the main body, remove the
three screws D and three screws E retaining the
right side plate. (See Fig.4.)

Slide the right side plate toward the rear (in the
direction of the arrow 1) until the claw b at the back
of the right side plate is hooked by the bottom case
and then lift the right side plate upward (in the
direction of the arrow 2) to remove it. (See Fig.5.)

Removing the left side plate

(See Figs. 6 and 7.)

1.2.From the left side of the main body, remove the

three screws D and three screws E retaining the
left side plate. (See Fig.6.)

D

D

E

Right side
plate

E

Fig.4

Right side
plate

2

Slide the left side plate toward the rear (in the
direction of the arrow 3) until the claw c at the back
of the left side plate is hooked by the bottom case,
and then lift the left side plate upward (in the
direction of the arrow 4) to remove it. (See Fig.7.)

E

Left side
plate

D

E

Bottom case

Left side
plate

1

Claw b

Fig.5

4

3

1-6

D

Fig.6

Claw c

Fig.7

Bottom case

UX-M5

g

Removing the top cabinet

(See Figs. 8 and 9.)

Remove the left and right side plates.

1.2.From the back side of the main body, loosen the
two screws F retaining the top cabinet.

Lift the rear part of the top cabinet to remove it.

(See Fig.8.)

(See Fig.9.)

Removing the front cabinet assembly

(See Figs. 10 to 12.)

Remove the left and right side plates.
Remove the top cabinet.

1.

From the left side of the main body, remove the tie
band bundling the wires. (See Fig.10.)

2.

Disconnect the wire from the connector on the
cassette switch board. (See Fig.10.)

3.

Remove the screw G retaining the holder on the
H.phone j. board. (See Fig.10.)

4.

Disconnect the wires from the two connectors
CN607 and CN608 on the CD & MCU board.

(See Figs.10 and 11.)

Lift the rear
part to remove.

F

Fig.8

(To be loosened)

F

Top cabinet

Rear cabinet

5.

Remove the four screws H and the two screws J
retaining the CD mechanism assembly from the left
and right. (See Figs.10 and 11.)

6.

Remove the screw K retaining the front cabinet
assembly from the bottom side of the main body.

7.

While opening the hooks d to the left and right of
the lower part of the front cabinet assembly (in the
direction of the arrows 1), slide the front cabinet
assembly toward the front (in the direction of the
arrow 2). (See Fig.12.)

8.

Disconnect the wire from the connector on the
PB/REC head board, and then remove the front
cabinet assembly. (See Fig.12.)

[Note] After assembly, apply a locking agent to
the screws G, H and J.

(See Fig.12.)

CD mechanism
assembly

H

J

CD mechanism
assembly

CD & MCU board

Connector on the
cassette switch
board

Bottom case

Fig.9

H

Power board

Fig.10

Hook d

Holder

Tie band

Connector on the
PB/REC head board

1

Front cabinet assembly

H

CN608

J
G

H.phone j.
board

CN607

2

K

Hook d

Fi

.11

1

Fig.12

1-7

UX-M5

L

Removing the CD mechanism

assembly (See Figs. 13 to 15.)

Remove the left and right side plates.
Remove the top cabinet.
Remove the front cabinet assembly.

1.

From the top side of the main body, disconnect the
wires from the four connectors CN601, CN602,
CN603 and CN701 on the CD & MCU board.

(See Fig.13.)

CN701

CN603

CN601

CN602

2.

From the left side of the main body, remove the tie
band bundling the wires. (See Fig.14.)

3.

Disconnect the wire from the connector CN902 on
the power board. (See Fig.14.)

4.

From the left and right sides of the main body,
remove the four screws L retaining the CD rear
mount bracket. (See Figs.14 and 15.)

5.

Slide the CD mechanism assembly toward the front
(in the direction of the arrow) and remove it from
the board lock support of the main board.

(See Fig.15.)

CD & MCU board CD mechanism assembly

Fig.13

CD & MCU board

L

Fig.14

CD & MCU board

Tie band

CN902

1-8

Board lock support

Main board

Fig.15

UX-M5

Removing the power board

(See Figs. 16 and 17.)

Remove the left and right side plates.

1.

Disconnect the wires from the connector CN901 on
the power board. (See Fig.16.)

2.

Remove the tie band bundling the wires.

(See Fig.16.)

3.

Remove the screw M retaining the lug wire.

(See Fig.16.)

4.

Remove the two screws N retaining the bottom
case. (See Fig.16.)

5.

Remove the power board by pinching the two
board lock supports retaining the power board
using radio pliers, etc. (See Fig.17.)

Removing the main board

(See Figs. 18 and 19.)

Remove the left and right side plates.
Remove the top cabinet.
Remove the front cabinet assembly.
Remove the CD mechanism assembly.

Power transformer

Bottom case

Power board

Main board

Board lock support

NM

Fig.16

Radio pliers, etc.

Board lock support

Bottom case

Fig.17

P

CN901

Tie bands

Lug wire

Power board

1.

From the inside of the rear cabinet, remove the five
screws P retaining the bracket. (See Fig.18.)

2.

From the rear side of the main body, remove the
two screws Q retaining the speaker terminal of the
main board. (See Fig.18.)

3.

Remove the three screws R retaining the rear
cabinet, then remove the rear cabinet. (See Fig.18.)

4.

From the top side of the main body, remove the
screw S retaining the bracket of the main board.

(See Fig.19.)

5.

Remove the screw T retaining the regulator
IC(IC302). (See Fig.19.)

6.

Remove the tie band bundling the wires.

(See Fig.19.)

7.

Disconnect the wire from the connector CN901 on
the power board. (See Fig.19.)

8.

Remove the solder from the soldered part e that
attaches the FM antenna wire to the main board.
(See Fig.19.)

Soldered part e

FM antenna wire

S

R

P

Rear cabinet

QR

Fig.18

Regulator IC

(IC302)

T

Main board

CN901

9.

Remove the stud on the main board, and then take
out the main board from the bottom case.

Heat sink

Bracket

Power transformer

Power board

Fig.19

Tie bands

Bottom case

1-9

UX-M5

y

<Front cabinet assembly section>

Remove the left and right side plates.
Remove the top cabinet.
Remove the front cabinet assembly.

Removing the key switch board

(See Fig. 20.)

Remove the ten screws U retaining the key switch
board.

Removing the cassette mechanism

assembly (See Fig. 20.)

Remove the two screws V and the two screws W
retaining the cassette mechanism assembly.

[Note] After assembly, apply a locking agent
to the screws V and W.

Removing the damper gear

(See Fig. 20.)

Remove the screw X retaining the D.gear bracket
and take out the damper gaer.

Removing the latch cam holder

(See Fig. 20.)

Remove the two screws Y retaining the latch cam
holder and remove the latch cam holder.

Removing the cassette door cover

(See Fig. 21.)

[Note] Use the following procedure to remove
only the cassette door cover.
This procedure does not require the
removal of exterior parts such as the
side plates.

1.2.Open the cassette door.

Front cabinet assembly

Latch cam holder

D.gear holder

Damper gear

Technical door

Claw f

Claw g

U

Y

X

Key switch board

U

V

Cassette
mechanism
assembly

W

W

Fig.20

Slide the cassette door cover in the direction of the
arrow, and disengage the two claws f and the two
claws g on the left and right of the cassette door
cover from the technical door.

Removing the technical door

(See Figs. 22 and 23.)

Remove the cassette mechanism assembly.
Remove the cassette door cover.

1.

Open the technical door, disengage the torsion
spring hooked across the front of the front cabinet
assembly and the technical door in the outward
direction, and remove it from the claw h.

(See Fig.22.)

2.

From the back side of the front cabinet assembly,
remove the two screws Z retaining the deck
mechanism bracket. (See Fig.23.)

3.

While pushing the arm section i of the technical
door in the direction of the arrow, remove the shaft
section j of the technical door from the front cabinet
assembly. (See Fig.23.)

4.

While pushing the technical door arm section k in
the direction of the arrow, remove the shaft section
m of the technical door from the front cabinet
assembly. (See Fig.23.)

5.

Take out the technical door from the back side of
the front cabinet assembly.

[Caution] In the assembly, be sure to put the
spring around the shaft section j
before attaching the technical door.

Cassette door cover

Arm section i

Shaft section j

Torsion spring

Z

Fig.21

Front cabinet assembly

Disengage the torsion
spring so that it comes to
the front of the claw h.

Fig.22

Front cabinet assembl

Deck mechanism bracket

Fig.23

Torsion spring

Claw h

Technical door

Arm section k

Shaft section m

1-10

<CD mechanism section>

Remove the left and right side plates.
Remove the top cabinet.
Remove the front cabinet assembly.
Remove the CD mechanism assembly.

Removing the CD & MCU board

(See Figs. 1 and 2.)

1.

From the bottom side of the CD mechanism
assembly, remove the two screws A retaining the
CD & MCU board. (See Fig.1.)

2.

Disengage the two board lock supports retaining
the CD & MCU board. (See Fig.1.)

3.

Disconnect the wires from the two connectors
CN702 and CN703 on the CD & MCU board.

(See Figs.1 and 2.)

4.

Lift the CD & MCU board and attach solder to the
short land part a on the CD pickup assembly.

(See Fig.2.)

Board lock support

Board lock support

CD & MCU board

CD & MCU board

Fig.1

CN704

UX-M5

A

CN702

A

CD pickup unit

5.

Disconnect the card wire from the connector
CN704 on the CD & MCU board, and take out the
CD & MCU board. (See Fig.2.)

[Cautions] Be sure to solder the short land
part a on the CD pickup unit before
disconnecting the card wire from the
CD pickup assembly. (See Fig. 2.)
If the card wire is disconnected
without attaching solder, the CD
pickup may be destroyed by static
electricity.
In the assembly, be sure to remove
solder from the short land part a
after connecting the card wire.

Removing the CD pickup assembly

(See Fig. 3.)

Remove the CD & MCU board.

1.

From the back side of the CD mechanism
assembly, remove the four screws B retaining the
CD pickup assembly.

CN703

CD pickup
assembly

CD mechanism assembly

CD pickup assembly

Damper(Gray)

B

Short land part a

Fig.2

Damper(Blue)

B

2.

Take out the CD pickup assembly.

[Note] When removing or replacing the
dampers, note their colors and be sure
to attach them in their correct positions.

Damper(Blue)Damper(Gray)

Fig.3

1-11

UX-M5

Removing the tray motor

(See Figs. 4 to 7.)

Remove the CD & MCU board.

1.

From the top side of the CD mechanism assembly,
open up the claws b and c at the left and right of
the clamper assembly and lift the assembly to
remove it. (See Fig.4.)

2.

Push the section d of the elevator in the direction of
the arrow and lower the CD pickup assembly.

(See Fig.5.)

3.

Pull out the tray. (See Fig.5.)

4.

While opening up the claws e at the left and right of
the tray in the directions of the arrows, remove the
tray. (See Fig.6.)

5.

While pushing the claw f on the CD mechanism
assembly downwards, slide the elevator fully in the
direction of the arrow. (See Fig.7.)

6.

Lift the gear slightly, remove the transparent cover.

(See Fig.7.)

CD mechanism assembly

Claw b

Claw c

Fig.4

CD pickup assembly

Clamper assembly

Claw c

Tray

7.

Remove the belt from the tray motor pulley.

(See Fig.7.)

8.

Remove the two screws C retaining the tray motor
and remove it from the bottom side of the CD
mechanism assembly. (See Fig.7.)

[Notes] Take care not to attach grease on the
belt.
After attaching the tray motor in the
assembly, apply a locking agent to the
screws C.

Fig.5

Section d

TrayClaw e

Claw e

Fig.6

CD mechanism assembly

Claw f

Tray motor pulley

Gear

1-12

Fig.7

C

Transparent

Belt

cover

UX-M5

g

Replacing the CD pickup unit
(See Figs. 8 to 11.)

[Note] Use the following procedure to replace
only the CD pickup unit.

1.

Remove the left and right side plates. (See Figs.4
to 7 of "Main body section" on page 1-7.)

2.

Remove the top cabinet. (See Figs.8 and 9 "Main
body section" on page 1-8.)

3.

From the top side of the main body, open up the
claws b and c on the left and right of the clamper
assembly in the direction of the arrows and lift the
assembly to remove it. (See Fig.8.)

4.

Push the section d on the elevator of the CD
mechanism assembly and lower the CD pickup
assembly. (See Fig.9.)

5.

Pull out the tray. (See Fig.10.)

6.

Remove the slit washer retaining the feed middle
gear, and take out the feed middle gear.

(See Fig.10.)

Clamper assembly

Claw c

Claw b

Front cabinet assembly

Claw c

Fig.8

Front cabinet assembly

7.

Loosen the two screws D retaining the shaft.

(See Fig.10.)

8.

Turn the CD pickup unit upside down and apply
solder to the short land part a. (See Fig.11.)

9.

Disconnect the card wire from the CD pickup unit
and replace the unit. (See Fig.11.)

[Caution] Be sure to solder the short land
part a on the CD pickup unit before
disconnecting the card wire from the
CD pickup unit (see Fig. 11).
If the card wire is disconnected
without attaching solder, the CD
pickup may be destroyed by static
electricity.
In the assembly, be sure to remove
solder from the short land part a
after connecting the card wire.
[Note] Removing the CD pickup unit
involves the removal of the sliding
spring. In the assembly, be sure to
attach the spring in the correct
orientation before attaching the CD
pickup unit (see Fig. 11).

Feed middle gear

Sliding spring

D

(To be loosened)

Card wire

Fig.9

CD pickup assembly

D

(To be loosened)

Fig.10

d section

TraySlit washer

Short land part a

Fi

.11

1-13

UX-M5

Adjustment method

Measuring instructions required for
adjustment

1. AM signal generator

2. FM signal generator

3. Inter mediate frequency sweep generator

4. FM stereo signal generator

5. Low-frequency oscillator
(oscillation frequency 50Hz-20kHz, 0dB output
with 600 ohm impedance)

6. Attenuator (600 ohm impedance)

7. Electronic voltmeter

8. Distortion meter

9. Torque gauge (cassette for CTG-N)

10. Wow & flutter meter

11. Frequency counter meter

12. Test tape
VT712 : For tape speed and wow flutter
VT724 : For reference level
VT702 : For playback frequency
VT702 : For head azimuth adjustment

13. Blank tape
TAPE : AC-225

Measuring instruments

Radio section
FM 1kHz, 22.5kHz deviation
FM STEREO : 1kHz, 67.5kHz deviation
pilot signal 7.5kHz
AM : 1kHz, 30% modulation
Reference output :
Speaker output 0dBs(2.8V) 8 ohm
H.phone output -10dBs(0.245V) 32 ohm

Cassette amplifier section
Reference output :
Speaker output 0dBs(2.8V) 8 ohm
H.phone output -10dBs(0.245V) 32 ohm
Standard mode of function knob :
Press TAPE knob of select TAPE mode

CD section
CD test disc : CTS-1000

Measurement conditions

Power supply voltage
AC220V/60Hz

1-14

Cassette amplifier section

Item Measuring condition Check and adjustment procedure Standard value Adjusting part
Head azimuth
adjustment

Tape speed and
wow/flutter check
and adjustment

PB frequency
response check

Bias frequency
check

REC and PB
frequency
response
adjustment

Test tape:
VT702 (8kHz)
Signal output terminal:
PHONES
(with 32 ohm load)

Test tape:
VT712 (3kHz)
Signal output terminal:
PHONES
(with 32 ohm load)

Test tape: VT702
Signal output terminal:
PHONES
(with 32 ohm load)
Tape: Normal
Signal output terminal:
Cassette REC./PLAY
HEAD

Test tape: AC225
Signal input:
FM 22.5 DEV 60dBu
with emphasis
Signal output terminal:
PHONES
(with 32 ohm load)

Play back the test tape VT702 (8kHz).

1.
Adjust the head azimuth adjusting screw so that the

2.
phase difference between the R and L channels is
minimized at an output level that is within (0+2dB-2dB)
of the maximum output level. After this adjustment,
lock the head azimuth adjusting screw with screw
sealant to cover more than a half of the screw head.

3.

When the head azimuth is maladjusted, correct it with
the head azimuth adjusting screw.
Play back the test tape VT712 (3kHz) by the end

1.
portion.
Connect a frequency counter and check that it reads

2.
between 2940 and 3090Hz. If not, adjust the frequency
with the motor semifixed resistor.
Check that the wow/flutter is within 0.38%

3.
(unweighted).

Play back the test tape VT702 while con-firming that
deviation between the 1kHz signal and 8kHz signal
should be (0+3dB-6dB).

Set the TUNER or CD function and with TAPE to
record. Check to see if the frequency at the measuring
point P201 is (67kHz+1kHz-1kHz) if not adjust L203
until the frequency counter indicates (67kHz+1kHz

-1kHz).
At TUNER, set the BAND to the FM position, and
record the reference 1kHz signal and 8kHz signal
alternately repeatedly. While playing back the recorded
signal differ from that of the 1kHz signal by within
(0+3dB-6dB).

Output level:
Within (0+2dB-2dB)
of maximum output
level
Phase difference R
and L channels:
Minimum

2940 to 3090Hz

Within 0.38%
(unweighted)

Deviation between
1kHz and 8kHz:
(0+3dB-6dB)

Level difference
between REC and
PB: Within
(0+3dB-6dB)

Tuner section

Item Measuring condition Check and adjustment procedure Standard value Adjusting part

AM IF adjustment 1.

Signal input:
Loop antenna
Signal output:
IC101 pin19

Set the intermediate frequency sweep generator to AM
450kHz.
Adjust the T101 for maximum and center output.

2. T101

UX-M5

Head azimuth
adjusting screw
(To be used only
after head
replacement)
See Fig.1 on
page 1-16.

Tape speed:
Motor semifixed
resistor

See Fig.2 on
page 1-16.
Check only

L203, P201
See Fig.3 on
page 1-16.

See Fig.3 on
page 1-16.

AM tracking
adjustment

FM tracking
adjustment

Signal input:
Loop antenna
Signal output:
PHONES
(with 32 ohm load)

Signal input:
Dummy antenna
FM ANT
FM GND
Signal output:
PHONES
(with 32 ohm load)

Set the TUNER at 522kHz, adjust the L101 until the

1.
test point P107 voltage at (1.1V+0.1V-0.1V).
Set the TUNER at 1629kHz, check the test point P107

2.
voltage at (7.0V+0.3V-0.3V).
Set the TUNER and S/G at 603kHz, adjust the L102

3.
for maximum output.
Set the TUNER and S/G at 1404kHz, adjust the TC101

4.
for maximum output.
Repeat the above steps 3 and 4.

5.

Set the TUNER at 87.5MHz, adjust the L104 until the

1.
test point P105 voltage at (2.3V+0.1V-0.1V).
Set the TUNER at 108MHz, check the test point P105

2.
voltage at (6.5V+0.3V-0.3V).
Set the TUNER and S/G at 90.1MHz, adjust L103 for

3.
maximum output.
Set the TUNER and S/G at 106.1MHz, adjust the

4.
TC102 for maximum output.
Repeat the above steps 3 and 4.

5.

L101, P107

L102

TC101
See Fig.3 on
page 1-16.

L104, P105

L103

TC102
See Fig.3 on
page 1-16.

1-15

UX-M5

Location of adjusting parts

Cassette mechanism section

CASSETTE MOTOR

Tape Speed Adj.

Fig.1 Head azimuth adjustment

Main board (Forward side)

Note: Measuring points (P105, P107 and P201) are located on the reverse side.

P105

(FM VT)

L104

(FM OSC)

TC101

(AM RF)

L101

(AM OSC)

L102

(AM RF)

TC102

(FM RF)

L103

(FM RF)

P107

(AM VT)

IC101

-

+

Fig.2

T101

(AM IF)

Fig.3

P201

(BIAS FREQUENCY)

L203

(BIAS FREQUENCY ADJ.)

1-16

Flow of functional operation until TOC read

UX-M5

Power ON

Slider turns REST
SW ON.

Laser ON

Focus start

FOK

Turn on focus
servo

Confirm that the voltage at the pin5 of CN703 is
"H"/"L"/"H"

Check that the voltage at the pin10(LD) of
CN704 is +1.35V.

Caution

Before connecting a measuring instrument to
the measuring point, turn the power of the
main unit to OFF.
After performing a measurement and before
disconnecting the measuring instrument,
again turn the power of the main unit to OFF.
(If a measuring instrument is disconnected
while an electric current is being output to the
main unit, the pick up of the main unit will be
damaged.)

Disc spinning

Radial_error
scaling

PLL Lock

Turn on radial
servo

Read TOC

Check that the voltage at the pin1 and pin2 of
CN703 is +0.65V.

Confirm the eye-pattern at the pin25 (RFGO) of IC704
on the CD & MCU board.

1-17

UX-M5

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.

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

Is the level of

RF OUT 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 3 seconds and the objective lens moves
up and down.
Note: Do not observe the laser beam directly.

Play a disc.

Check the eye-pattern at the pin25 (RFGO)
of IC704 on the CD & MUC board.

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.

1-18

Trouble shooting

UX-M5

Circuit Symptom Cause

No soundGeneral

AM

FM Connect the built-in or external antenna.

No sound, weak sound
(Low sensitivity)

No sound, weak sound
(Low sensitivity)

Speakers are not connected.

Wrong function is selected.

Defective volume control

Defective earphone jack

Defect in IC402

Defect in IC301
Improper location of unit

Defect in IF T101

Defect AM antenna coil L102 or oscilloscope
coil L101

Intermediate frequency tuning faulty

RF tracking faulty

Defective IC101

Defective IC102

Poor contact in antenna circuit
FM antenna not connected

Defective band selector switch

Check the speaker connection.

Set switch to the proper position.

Set the volume control to a proper sound
level.

Replace the earphone jack.

Check voltages. Replace if necessary.

Check voltages. Replace if necessary.
Rotate or reposition the unit.

Check resistance, voltage, and current.
Replace as needed.

Replace if necessary.

Readjust (see "Adjustment method").

Readjust (see "Adjustment method").

Check voltages. Replace if necessary.

Check voltages. Replace if necessary.

Check resistance and resolder.

Replace or repair the switch.

Remedy

Defective IC101

Defective IC102

Intermediate frequency tuning faulty

Poor contact in FM antenna circuit

Tape Clean the capstan or head with alcohol.

CD Insert disc correctly.

No sound/recording,
unsteady tape sound,
weak sound

Cannot read the table
of content.
No sound

Dirty capstan or head

Irregular cassette tape winding

Defective IC201

Defective IC202

Cassette erasure prevention tabs broken out

Disc is inserted upside down.

Disc is dirty.

Disc is scratched.

Disc is seriously warped.

A non-standard disc has been inserted.

Moisture has formed inside the CD deck.

Defective IC701

Defective IC704

Check voltages. Replace if necessary.

Check voltages. Replace if necessary.

Readjust (see "Adjustment method").

Resolder or repair as required.

Replace tape.

Check voltages. Replace if necessary.

Check voltages. Replace if necessary.

Replace tape or cover tab openings with
adhesive tape.

Wipe clean with a soft cloth.

Use a new disc.

Use a new disc.

Use only a brand name disc.

Wait about 20 to 30 minutes.

Check voltages. Replace if necessary.

Check voltages. Replace if necessary.

Defective IC703

Defect in the CD pickup mechanism

Check voltages. Replace if necessary.

Replace as required.

1-19

UX-M5

Description of major ICs

TC9462F (IC701) : Digital servo single chip processor

1. Terminal layout

80 51

100 81

1 30

2. Pin function
Pin No. Symbol I/O Function

1
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

TEST0
HSO
UHSO

EMPH

LRCK

VSS1
BCK
AOUT
DOUT
MBOV
IPF

SBOK

CLCK

VDD1
VSS2
DATA
SFSY
SBSY
SPCK
SPDA
COFS
MONIT

VDD2
TESIO0

P2VREF
HSSW
ZDET
PDO

I
O
O

O

O

­O
O
O
O
O

O

I/O

-

­O
O
O
O
O
O
O

-

I

­O
O
O

31 50

Test mode terminal. Normally, keep at open.
Playback speed mode flag output terminal.

UHSO

H
H

L
L

Subcode Q data emphasis flag output terminal. Emphasis ON at "H" level and
OFF at "L" level. The output polarity can invert by command.
Channel clock output terminal. (44.1kHz) L-ch at "L" level and R-ch at "H" level.
The output polarity can invert by command.
Digital ground terminal.
Bit clock output terminal. (1.4112MHz)
Audio data output terminal.
Digital data output terminal.
Buffer memory over signal output terminal. Over at "H" level.
Correction flag output terminal. At "H" level, AOUT output is made to correction
impossibility by C2 correction processing.
Subcode Q data CRCC check adjusting result output terminal. The adjusting
result is OK at "H" level.
Subcode P W data readout clock input/output terminal. This terminal can select
by command bit.
Digital power supply voltage terminal.
Digital ground terminal.
Subcode P W data output terminal.
Playback frame sync signal output terminal.
Subcode block sync signal output terminal.
Processor status signal readout clock output terminal.
Processor status signal output terminal.
Correction frame clock output terminal. (7.35kHz)
Internal signal (DSP internal flag and PLL clock) output terminal. Selected by
command. This terminal output the text data with serial by command.
Digital power supply voltage terminal.
Test input/output terminal. Normally, keep at "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 "VREF" voltage.
1 bit DA converter zero detect flag output terminal.
Phase difference signal output terminal of EFM signal and PLCK signal.

HSO

PLAYBACK SPEED

H

L

H

L

Normal
2 times
4 times

-

TC9462F (1/3)

1-20

Pin No. Symbol I/O

29
30

TMAXS
TMAX

O
O

TC9462F (2/3)

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

DIFFERENCE RESULT TMAX OUTPUT
Longer than fixed freq.
Shorter than fixed freq.
Within the fixed freq.

"P2VREF"

"Vss"

"HiZ"

UX-M5

31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55

56
57

58

59

60

61

62
63
64
65
66
67

LPFN
LPFO
PVREF
VCOREF
VCOF
AVSS1
SLCO
RFI
AVDD1
RFCT
RFZI
RFRP
FEI
SBAD
TSIN
TEI
TEZI
FOO
TRO
VREF
RFGC
TEBC
FMO
FVO
DMO

2VREF
SEL

FLGA

FLGB

FLGC

FLGD

VDD3
VSS3
IO0
IO1
IO2
IO3

I

LPF amplifier inverting input terminal for PLL.

O

LPF amplifier output terminal for PLL.

-

PLL reference voltage supply terminal.

I

VCO center frequency reference level terminal. Normally, keep at "PVREF" level.

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 "VREF" 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.

O

RF amplitude adjustment control signal output terminal.

O

Tracking balance control signal output terminal.

O

Feed equalizer output terminal.

O

Speed error signal or feed search equalizer output terminal.

O

Disk equalizer output terminal.
(PWM carrier=88.2kHz for DSP, Synchronize to PXO)

-

Analog double reference voltage supply terminal.

O

APC circuit ON/OFF indication signal output terminal.
At the laser on time, UHF = L at "HiZ" level and UHF = H at "H" level.

O

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

O

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

O

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

O

External flag output terminal for internal signal.
Can select signal from TRON, DMON, HYS and SHC by command.

-

Digital power supply voltage terminal.

-

Digital ground terminal.

I/O

General I/O terminal. Can change over input port or output port by command.

I/O

At the input mode time can readout a state of terminal (H/L) by read command.

I/O

At the output mode time can control a state of terminal (H/L/HiZ) by command.

I/O

1-21

UX-M5

Pin No. Symbol I/O

DMOUT

68

CKSE

69

DACT

70

TESIN

71

TESIO1

72

VSS4

73

PXI

74

PXO

75

VDD4

76

XVSS

77

XI

78

XO

79

XVDD

80

DVSR

81

RO

82

DVDD

83

DVR

84

LO

85

DVSL

86

TEST1

87

TEST2

88

TEST3

89

BUS0

90

BUS1

91

BUS2

92

BUS3

93

VDD5

94

VSS5

95

BUCK

96

CCE

97

TEST4

98

TSMOD

99

RST

100

TC9462F (3/3)

Function

I

This terminal controls IO0 IO3 terminal. 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.

I

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

I

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

-

Digital ground terminal.

I

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

O

Crystal oscillator connecting output terminal for DSP.

-

Digital power supply voltage terminal.

-

Oscillator ground terminal for system clock.

I

Crystal oscillator connecting input terminal for system clock.

O

Crystal oscillator connecting output terminal for system clock.

-

Oscillator power supply voltage terminal for system clock.

-

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

O

R channel data forward output terminal.

-

Analog supply voltage terminal for DA converter.

-

Reference voltage terminal for DA converter.

O

L channel data forward output terminal.

-

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

I

Test mode terminal. Normal, keep at open.

I

Test mode terminal. Normal, keep at open.

I

Test mode terminal. Normal, keep at open.

I/O

Micon interface data input/output terminal.
I/O
I/O
I/O

-

Digital power supply voltage terminal.

-

Digital ground terminal.

I

Micon interface clock input terminal.

I

Command and data sending/receiving chip enable signal input terminal.

The bus line becomes active at "L" level.

I

Test mode terminal. Normal, keep at open.

I

Local test mode selection terminal.

I

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

1-22

AN7312 (IC202) : Dual recording/Playback pre-amplifier circuit with ALC

1. Terminal layout

14 8

~

2. Block diagram

Vcc

14 13 12 11 10

8

9

UX-M5

Ripple Filter

17

~

1 2 3 4 5 6

GND

ALC

3. Pin function
Pin No. Symbol Function

1

GND

2

ALC time constant

3

ALC input Ch.1

4

Output Ch.1

5

Phase compensation Ch.1

6

N.F.B. Ch.1

7

Input Ch.1

8

Input Ch.2

9

N.F.B. Ch.2

10

Phase compensation Ch.2

11

Output Ch.2

12

ALC input Ch.2

13

Ripple filter

14

Vcc

I/O

GND

­ALC time constant by resistance and capacitor

­Right channel ALC input

I

Right channel output

O

No connect

­Right channel negative feed back input

I

Right channel signal input

I

Left channel signal input

I

Left channel negative feed back input

I

No connect

­Left channel output

O

Left channel ALC input

I

Ripple filter

­Power supply

-

Amp.

Ch2

Amp.

Ch1

7

BA4558N (IC401,IC403) : Dual operational amplifier

1. Terminal layout & Block diagram

1ch 2ch

2

34

EE

5678

+IN2 -IN2 OUT2 Vcc

1

OUT1 -IN1 +IN1 V

2. Pin function
Pin No. Symbol I/O Function

1

OUT1
2
3
4
5
6

OUT2

7
8

-IN1

+IN1

EE

V

+IN2

-IN2

CC

V

O

I
I

­I
I

O

-

A output
A -input
A +input
V­B +input
B -input
B output
V+

1-23

UX-M5

TMP87EP26F-1J15 (IC601) : MCU

1. Terminal layout

80 51

81

50

(Top view)

100

130

31

2.Pin function
Pin No. Symbol I/O Function

1

VSS

2

XOUT

3

XIN

4

RESET

5

XTOUT(P22)

6

XTIN(P21)

7

TEST

8

SHIFT FREQ

9

REMOTE

10

MUTE

11

PLAY MUTE

12

REC MUTE

13

PLAY/REC

14

NC(SCK2)

15

NC(SI2)

16

NC(SO2)

17

REC SW (RVS)/(WAIT)

GND (0V)

­Resonator connecting pins for high clock(4-8MHz).

O

For inputting external clock, XIN is used and XOUT is opened.

I

Reset signal input or watchdog timer output/address-trap-reset output

I/O

Resonator connecting pins for slow clock(32.768kHz)

I/O

or general purpose I/O.

I/O

Test pin for out-going test. Always fixed to low.

I

Shift the crystal oscillation frequency to reduce tuner noise.

O

Remote control signal input

I

Audio mute output

O

Muting output during play

O

Muting output during recording

O

Play or recording output, low for recording.

O

Not connect

­Not connect

­Not connect

­Deck reverse record protection input. Low means can record on

I

reverse side.

18

REC SW (FWD)

Deck forward record protection input. Low means can record on

I

forward side.

19

B-SOL+

20

B-MODE SW

21

VOL STB

22

POWER

23

B-HALF SW

24

JOG-B/VOL DATA

25

JOG-A/VOL CLK

26

RDS CLK

27

V MOTOR

28

B-PHOTO OUT

29

CD-RW

30

RES

Solenoid output for deck B.

O

Mode switch input of deck B. Low means the head is up.

I

TC9422F volume STB output

O

Power output control

O

Half switch input of deck B. Low means deck B have tape.

I

Jog dial input and TC9422F volume data output

I/O

Jog dial input and TC9422F volume clock output

I/O

BU1923F(RDS demodulator) interface CLK input

I

Motor output

O

Reel pulse input of deck B. Have pulse input means the tape is rotating.

I

CD-RW control output

O

CD servo reset output

O

TMP87EP26F-1J15 (1/2)

1-24

Pin No. Symbol I/O Function

(

)

Servo DSP chip enable output

31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50

51
52 91
92 95

96

97

98

99

100

CCE
BUCK
BUS0
BUS1
BUS2
BUS3
SLOUT
SLIN
SLT
SLEND
NC
RDS DATA
STEREO
POWER DETECT
AD K3
AD K2
AD K1
VAREF
BOOT
VSS
VDD
SEG39 0
COM3 0
VLC
PLL DATA
PLL CLK
PLL PERIOD
VDD

O

Servo DSP clock output

O

Servo DSP command and data I/O

I/O

Servo DSP command and data I/O

I/O

Servo DSP command and data I/O

I/O

Servo DSP command and data I/O

I/O

Tray open/close outputs for current sensor drawer type mechanism.

O
O

CD pick up position input: L if pick up is in inner side.

I

Current sensor input

I

Not connected

­BU1923F(RDS demodulator) interface data input

I

Stereo input pin for tuner stereo indication

I

Power down detection

I

Panel key analog input

I

Panel key analog input

I

Panel key analog input

I

Analog reference voltage input

­Control input for writing MCU program area via ICU interface.

I

GND (0V)

­VDD (+5V)

­LCD segment outputs

O

LCD common outputs

O

LCD drive power supply

­TC9257P (PLL) interface

I/O

TC9257P (PLL) interface

O

TC9257P (PLL) interface

O

+5V

VDD

-

UX-M5

TMP87EP26F-1J15 (2/2)

1-25

UX-M5

LM1876TF (IC402) : Overture audio power amplifier series

1. Terminal layout

LM1876TF

1

23456 7891011 1213 14 15

2. Pin function
Pin No. Symbol I/O Function

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

OUT B
VCC A
OUT A

-Vcc

GND A

MUTE A

-IN A

+IN A

Standby A

GND B

MUTE B

-IN B

+IN B

Standby B

VCC B

O

B output

-

A V+

O

A output

-

V-

-

Power terminal

-

Control

I

A -input

I

A +input

-

Control

-

Power terminal

-

Control

I

B -input

I

B +input

-

Control

-

B V+

3. Block diagram

+IN A

-IN A

+IN B

-IN B

8

7

13

12

5

10

VCC AGND A

2

AMP A

AMP B

15 14

Standby A

96

Standby B

MUTE A

11

MUTE BVCC BGND B

3

4

1

OUT A

-VCC

OUT B

NJM7812A (IC302) : Regulator

1. Terminal layout

1.INPUT

2.OUTPUT (+12V)

3.GND

1 2 3

2. Block diagram

1

INPUT

THERMAL SHUTDOWN

BANDGAP REFERENCE

OVER VOLTAGE PROTECTION

SOA PROTECTION

SHORT CIRCUIT

PROTECTION

3

GND

R1

R2

2

OUTPUT

1-26

TA2092N (IC703) : Power driver

1.Terminal Layout & Block Diagram

PW GND1

OUT(-)1

PW VCC1

OUT(+)1

VIN1

VRI

VCI

VIN2

OUT(+)2

PW VCC2

OUT(-)2

PW GND2

1

2

3

4

5

6

7

8

9

10

11

12

PW GND4

24

OUT(-)4

23

PW VCC4

22

OUT(+)4

21

VIN4

20

SVCC1

19

18

SGND

17

VIN3

16

OUT(+)3

15

PW VCC3

14

OUT(-)3

13

PW GND3

2. Pin function
Pin No. Symbol I/O Function

PW GND1

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

OUT(-)1
PW VCC1
OUT(+)1
VIN1
VRI
VCI
VIN2
OUT(+)2
PW VCC2
OUT(-)2
PW GND2
PW GND3
OUT(-)3
PW VCC3
OUT(+)3
VIN3
SGND
SVCC1
VIN4
OUT(+)4
PW VCC4
OUT(-)4
PW GND4

Power GND

­Inverted output for CH1

O

Supply terminal of output stage for CH1

­Non-inverted output for CH1

O

Input for CH1

I

Input reference voltage

I

Output reference voltage

O

Input for CH2

I

Non-inverted output for CH2

O

Supply terminal of output stage for CH2

­Inverted output for CH2

O

Power GND

­Power GND

­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 GND

­Small signal GND

­Input for CH4

I

Non-inverted output for CH4

O

Supply terminal of output stage for CH4

­Inverted output for CH4

O

Power GND

-

UX-M5

UPC1330 (IC201) : REC/PB audio head switch

1. Terminal layout

19

3. Pin function
Pin No. Symbol I/O Function

SWR1

1

GND

2

SWP1

3

CONT

4

GND

5

VCC

6

SWP2

7

GND

8

SWR2

9

Record SW (Left channel)

­GND

­Play SW (Left channel)

­Record/play control pin

­GND

­Power supply

­Play SW (Right channel)

­GND

­Record SW (Right channel)

-

2. Block diagram

123456 789

INVERTER

COMPARATOR

1-27

UX-M5

TA2104BN (IC101) : 1chip AM/FM, MPX tuner system

1. Terminal layout 2. Pin function

RFGND

FMRF IN

AM LOW CUT

MIX OUT

VCC
AMIF IN
FMIF IN

GND

AGC

QUAD

R OUT

L OUT

10
11
12

1
2
3
4
5
6
7
8
9

24

FMRF OUT

23

RF VCC

22

AMRF IN

21

FM OSC

20

AM OSC

19

OSC OUT

18

ST LED

17

IF REQ

16

DET OUT

15

MPX IN

14

LPF1

13

LPF2

Pin No. Symbol I/O Function

RFGND

1

FMRF IN

2

AM LOW CUT

3

MIX OUT

4

VCC

5

AMIF IN

6

FMIF IN

7

GND

8

AGC

9

QUAD

10

R OUT

11

L OUT

12

LPF2

13

LPF1

14

MPX IN

15

DET OUT

16

IF REQ

17

ST LED

18

OSC OUT

19

AM OSC

20

FM OSC

21

AMRF IN

22

RF VCC

23

FMRF OUT

24

Ground terminal for RF

­Input of FMRF signal

I

AM low frequency cut

I

Output of FM/AM RF mix

O

Power supply terminal

­Input of AMIF signal

I

Input of FMIF signal

I

Ground terminal

­AGC voltage input terminal

I

OSC terminal for FM DET.

I

Output R-channel

O

Output L-channel

O

FM/AM switch

I

Stereo/monoral switch

I

Multiplex signal input

I

AM/FM detection output

O

IF out/REQ out

O

Stereo indicator output

O

PLL data bus for FM or AM

O

AM local oscillation circuit

­FM local oscillation circuit

­Input of AMRF signal

I

Power supply terminal for RF

­Output of FMRF signal

O

3. Block diagram

FMRF
OUTRFVCC

RF
GND

AMRFINFM

OSCAMOSC

2324 2122 1920 1718 1516 1314

FM

OSC

AM

MIX

LOW
CUT

FM
MIX

MIX
OUT

FMRF

21 43 65 87 109 1211

FMRFINAM

OSC
OUTSTLEDIFREQ

AM

OSC

FMRF

FMRF

VCC AMIFINFMIFINGND AGC R OUT L OUTQUAD

ST SW

BUFF

LEVEL

1/8

DET

AMIF FMIF

IF

IF

REQ

AM

DET

DET
OUT

AF

BUFF

AGC

FM

DET

AF

MPX
IN

ST/MO
FM/AM

LPF1 LPF2

VCD

DECODE

DIVIDE

MUTE

1-28

TC9257F (IC102) : PLL frequency synthesizer

1. Terminal layout

UX-M5

1

XT

2

XT

3

PRD

4

CLK

5

DATA

6

MUTE

CD

AUX

7
8
9

10

TUNER

ST MONO

2. Block diagram

FM OSC

14

AM OSC

13

XT

2

XT

1

DATA

5

CLK

4

PRD

3

AMP

20
19
18
17
16
15
14
13
12
11

FM VT
AM VT
B1
B0
IF
GND
FM OSC
AM OSC
VDD
EE

FM

L

1/2

FMHHF

OSC

CIRCUIT

2 MODULUS

PRESCALER

FM MODE LF

OSC

1ms

ADDRESS

DECODER

OUTPUT PORT

MUTE

TUNER

PSC

4bit SWALLOW

COUNTER

12bit PROGRAMMABLE COUNTER

4

REFERENCE COUNTER

24bit REGISTER

24bit SHIFT REGISTER

4

TEST

24bit REGISTER

4 4

20bit BINARY COUNTER

UNIVERSAL COUNTER CONTROL

OT-4

9876

CD

AUX

12

24 22

XT

POWER ON

15

10

1ms

VDD

12

RESET

MAX

5

4

RESET

PHASE

UNLOCK

5

GATE

GND

15

TRI-STATE

BUFFER

TRI-STATE

BUFFER

COMPARATOR

OT4

I/O PORT

AMP

AMP

19

20

10

11

16

17

18

AM VT

FM VT

ST MONO

EE

IF

B0

B1

3. Pin function

Pin No. Symbol I/O Function

XT

1
2
3
4
5
6
7
8
9

10

XT
PRD
CLK
DATA
MUTE
TUNER
CD
AUX
ST MONO

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

Pin No. Symbol I/O Function

EE

11
12
13
14
15
16
17
18
19
20

VDD
AM OSC
FM OSC
GND
IF
B0
B1
AM VT
FM VT

General-purpose I/O port

I/O

Power supply pin

­Programmable counter input

I

Programmable counter input

I

Ground pin

­General-purpose I/O port

I/O

General-purpose I/O port

I/O

General-purpose I/O port

I/O

Phase comparator output

O

Phase comparator output

O

1-29

UX-M5

g

TA2153FN (IC704) : RF amplifier for digital servo

1. Terminal layout 2. Block diagram

VCC

RFGC

GMAD

FNI
FPI
TPI
TNI

MDI

LDO

SEL

TEB

2VRO

TEN

TEO

SBAD

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15

30
29
28
27
26
25
24
23
22
21
20
19
18
17
16

RFN2
GND
RFO
AGCIN
GVSW
RFGO
RFRPIN
PKC
RFCT
BTC
RFRP
VRO
SEB
FEN
FEO

RFN229GND28RFO27AGCIN26GVSW25RFGO24RFRPIN23PKC22RFCT21BTC20RFRP19VRO18SEB17FEN16FEO

30

­+

1

VCC

2

RFGC

3

GMAD

AGC Amp.

+

-

+

4

FNI

-

5

FPI6TPI

PEAK

BOTTOM

+

-

+

-

-

SW3

I-I

I-I

7

8

TNI

MDI

3. Pin function
Pin No. Symbol I/O Function

1
2

VCC
RFGC

-

Power supply input terminal

I

RF amplitude adjustment control signal input terminal. Controlled by 3-PWM

signals. (PWM carrier = 88.2kHz)
3
4
5
6
7
8
9

10

GMAD
FNI
FPI
TPI
TNI
MDI
LDO
SEL

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

O

Laser diode amplifier input terminal

I

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

terminal

SEL level APC circuit LDO Detect frequency

GND OFF Connected to Vcc through Low

resistor (1kohm)

Hiz ON Control signal output Low

Vcc ON Control signal output High

+

+

9

-

-

+

LDO

+

-

10

+

SW2

SW1

11

SEL

+

-

-

-

+

-

+

3 STATE DET.

12

13

14

TEB

TEN

2VRO

­+

-

+

TEO

+

15

-

SBAD

TA2153FN (1/2)

1-30

11

12
13
14
15
16
17

TEB

2VRO
TEN
TEO
SBAD
FEO
FEN

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 ne

ative input terminal

Pin No. Symbol I/O Function

18

SEB

RFRP output circuit switching terminal

I

SEL level Bottom detection Peak detection
GND ON ON
Vcc OFF ON

19
20
21
22
23
24
25
26

VRO
RFRP
BTC
RFCT
PKC
RFRPIN
RFGO
GVSW

Reference signal (VRO) output terminal

O

Track count signal output terminal

O

Time constant adjustment terminal for bottom detection

I

RFRP signal center level output terminal

O

Time constant adjustment terminal for peak detection

I

Input terminal for track count signal output amplifier

I

Output terminal for RF signal amplitude adjustment amplifier

O

Amplifier (AGC, FE, TE) gain switching terminal

I

GVSW Mode
GND CD-RW
Hiz Normal
Vcc Normal

27
28
29
30

AGCIN
RFO
GND
RFN2

Input terminal for RF signal amplitude adjustment amplifier

I

Output terminal RF signal amplifier

O

Ground terminal

­Input terminal for RF signal amplifier

I

UX-M5

TA2153FN (2/2)

TA7291S (IC702) : Bridge driver

1.Terminal Layout

123456789

Vs

NC

Vcc

IN2(M+)

OUT2

3.Block diagram

Vcc Vref

28

GND

PROTECTOR

CIRCUIT

(TSD)

OUT1

REG

Vref

IN1(M+)

2.Pin function
Pin No. Symbol I/O Function

IN2(M-)

1
2
3
4
5
6
7
8
9

Vcc
OUT2
NC
GND
Vs
OUT1
Vref
IN1(M+)

Input terminal

I

Supply voltage terminal for logic

­Output terminal

O

Not connect

­Ground terminal

­Supply voltage terminal for motor driver

­Output terminal

O

Supply voltage terminal for control

­Input terminal

I

6

Vs

OUT1

7

OUT2

3

91

IN1 IN2

5

GND

1-31

UX-M5

TC9422F (IC301) : System electronic volume

1.Terminal Layout

VDD

GND
L-IN1
L-IN2
L-IN3
L-IN4

L-SW-OUT

L-VR-IN

L-B1
L-B2
L-B3

L-TONE-OUT

L-T1

Vref

CK

1
2
3
4
5
6
7
8

9
10
11
12
13
14

28

R-IN1

27

R-IN2

26

R-IN3

25

R-IN4

24

R-SW-OUT

23

R-VR-IN

22

R-B1

21

R-B2

20

R-B3

19

R-TONE-OUT

18

R-T1

17

STB

16

DATA

15

2.Block Diagram

L-IN1

L-IN2

L-IN3

L-IN4

L-SW-OUT

L-VR-IN

L-B1

L-B2

L-B3

L-TONE-OUT

L-T1

INPUT SELECTOR

2

3

4

5

6

7

8

9

1k

10

CAPACITOR FOR

OSCILLATION

11

500

12

750

100k

GAIN CONTROL

MAIN VR
50k /64STEP

50k

13k

0,6,12,18dB

13k

BASS VR
50k /16STEP

TREBLE VR
50k /16STEP

GND VDD

281

LATCH

DECODER

CIRCUIT

GAIN CONTROL

0,6,12,18dB

BASS VR
50k /16STEP

TREBLE VR
50k /16STEP

INPUT SELECTOR

100k

MAIN VR
50k /64STEP

50k

CAPACITOR FOR

OSCILLATION

13k

13k

500

750

27

26

25

24

23

22

21

20

1k

19

18

17

R-IN1

R-IN2

R-IN3

R-IN4

R-SW-OUT

R-VR-IN

R-B1

R-B2

R-B3

R-Tone-OUT

R-T1

1-32

32BIT SR

50k

50k

Vref CK DATA STB

1613 14 15

UX-M5

3.Pin Function
Pin No. Symbol I/O Function

GND

1

L-IN1

2

L-IN2

3

L-IN3

4

L-IN4

5

L-SW-OUT

6

L-VR-IN

7

L-B1

8

L-B2

9

L-B3

10

L-TONE-OUT

11

L-T1

12

Vref

13

CK

14

DATA

15

STB

16

R-T1

17

R-TONE-OUT

18

R-B3

19

R-B2

20

R-B1

21

R-VR-IN

22

R-SW-OUT

23

R-IN4

24

R-IN3

25

R-IN2

26

R-IN1

27

VDD

28

Ground pin

­Audio signal input pin (L-ch)

I

Audio signal input pin (L-ch)

I

Audio signal input pin (L-ch)

I

Audio signal input pin (L-ch)

I

Audio signal output pin (L-ch)

O

Main volume input pin (L-ch)

I

Tone control tap pin 1 for bus

I

Tone control tap pin 2 for bus

I

Tone control tap pin 3 for bus

I

Tone control output pin (L-ch)

O

Tone control tap pin for treble (L-ch)

I

Reference voltage input pin

I

Clock input pin

I

Data input pin

I

Strobe input pin

I

Tone control tap pin for treble (R-ch)

I

Tone control output pin (R-ch)

O

Tone control tap pin 3 for bus

I

Tone control tap pin 2 for bus

I

Tone control tap pin 1 for bus

I

Main volume input pin (R-ch)

I

Audio signal output pin (R-ch)

O

Audio signal input pin (R-ch)

I

Audio signal input pin (R-ch)

I

Audio signal input pin (R-ch)

I

Audio signal input pin (R-ch)

I

Power supply voltage pin

-

TC9422F

1-33

UX-M5

Wiring connection

CN103

P/N: OW23-04910-02P/N: OW29-00003-00

H.phone j. board

CN104

Antenna

board

P/N: OW20-41042-26

P/N: OW20-42032-17

Main board

(Forward side)

P/N: OW20-42051-36

P/N: OW20-51061-11

CN302

P/N: OW20-61033-24

P/N: OW20-41092-45

P/N: OW20-41082-39

P/N: OW20-41063-00

P/N: OW25-25150-03

P/N: OW20-41062-26

(Forward side)

Tray motor board

P/N: OW20-42021-48

P/N: OW20-42022-18

CN902

P/N: OW25-61080-01

P/N: OW20-41022-25

(Forward side)

Power board

CN901

P/N: OW20-41092-43

CD&MCU board

(Forward side)

P/N: OW25-23070-02K

P/N: OW20-41032-17

P/N: OW30-00005-04

LED board

(Forward side)

(Forward side)

Key switch board

BLUE

VIOLET

GREY

WHITE

BLACK

6 7 8 9 0

BROWN

RED

ORANGE

YELLOW

GREEN

12345

Color codes are shown below.

1-34

< MEMO >

UX-M5

1-35

UX-M5

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,maebashi-city,371-8543,Japan

No.21170

200301