SERVICE MANUAL
MICRO COMPONENT SYSTEM
UX-M3R
Area suffix
A ------------------------- Australia
UX-M3R
STANDBY/ON
TUNER
/BAND
CD/RANDOM TAPE
REC
PROGRAM
REMAIN
SLEEP PRE UP
/RDS MODE
REPEAT
INTRO
TIMER
/PRE DOWN
/RDS SEARCH
PRE EQ
DISPLAY
+
/HBS
MODE
VOLUME
MUTING
BEAT CUT
–
RM-SUXM3R REMOTE CONTROL
SP-UXM3
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-M3R
STANDBY
/ON
DISPLAY
MODE
TIMER
ON/OFF
SET
RANDOM
CD
PROGRAM
PRESET
REPEAT
PHONES
REC
STOP/CLEAR PLAY/PAUSE
FULL LOGIC DECK
CD SYNCHRO RECORDING
BAND
TUNER TAPE
SEARCH/TUNING
OPEN
/CLOSE
REMAIN
/RDS MODE
INTRO/RDS
SEARCH
VOLUME
PRE EQ
/HBS
EJECT
CA-UXM3R SP-UXM3
1-2
1-3
1-4
1-5
1-14
Maintenance of laser pickup
Replacement of laser pickup
Trouble shooting
Description of major ICs
Wiring connections
1-17
1-18
1-18
1-19
1-20
1-32
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
No.21093
Apr. 2002
UX-M3R
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
UX-M3R
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
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-M3R
Important for laser products
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The compact disc player uses invisible
laserradiation and is equipped with safety switches
whichprevent emission of radiation when the drawer is
open and the safety interlocks have failed or are de
feated. It is dangerous to defeat the safety switches.
VARNING : Osynlig laserstrålning är denna del är öppnad
och spårren är urkopplad. Betrakta ej strålen.
VARO : Avattaessa ja suojalukitus ohitettaessa olet
alttiina näkymättömälle lasersäteilylle.Älä katso
säteeseen.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.
CAUTION
!
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
ADVARSEL : Usynlig laserstråling ved åbning , når
sikkerhedsafbrydere er ude af funktion. Undgå
udsættelse for stråling.
ADVARSEL : Usynlig laserstråling ved åpning,når
sikkerhetsbryteren er avslott. unngå utsettelse
for stråling.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
CLASS 1
LASER PRODUCT
1-4
Disassembly method
<Main body section>
Replacement of the fuses and power amplifier IC
Replacing the fuses (See Fig. 1.)
Remove the left side panel according to its
disassembly method (see Figs. 5 and 6).
Fuses are located inside the left side panel.
[Caution] Be sure to replace the required fuses
with designated ones.
Fuse(F903)
1A 250V
UX-M3R
Fuse(F902)
2A 250V
Power board
Fuse(F901)
1A 250V
Replacing the power amplifier IC on
the main board (See Fig. 2.)
Remove the main board according to its
disassembly method (see Figs. 17 and 18).
1.
Remove the two screws A that attach the power
amplifier IC onto the heat sink.
2.
In order to replace the power amplifier IC, remove
the solder from soldered part a on the back side of
the main board.
Soldered part a
A
Fig.1
Main board
Power amplifier IC
(IC401)
Heat sink
Fig.2
1-5
UX-M3R
Removing the right side panel
(See Figs. 3 and 4.)
1.2.From the right side of the main body, remove the
three screws B and three screws C retaining the
right side panel.
Slide the right side panel toward the rear (in the
direction of arrow 1) until the claw b at the back of
the panel is hooked by the chassis and then lift the
panel upward (in the direction of arrow 2) to
remove it.
B
C
(Long)
Right side
panel
(Long)
C
Removing the left side panel
(See Figs. 5 and 6.)
1.2.From the left side of the main body, remove the
three screws B and three screws C retaining the
left side panel.
Slide the left side panel toward the rear (in the
direction of arrow 3) until the claw c at the back of
the panel is hooked by the chassis, and then lift the
panel upward (in the direction of arrow 4) to
remove it.
Left side
panel
C
(Long)
B
B
Fig.3
2
Right side
panel
1
Claw b
Fig.4
1-6
C
(Long)
B
Fig.5
Left side
panel
4
3
Claw c
Fig.6
UX-M3R
Removing the top cover
(See Figs. 7 and 8.)
Remove the left and right side panels.
1.2.From the back side of the main body, loosen the
two screws D retaining the top cover.
Lift the rear part of the top cover to remove it.
Removing the front panel assembly
(See Figs. 9 to 11.)
Remove the left and right side panels.
Remove the top cover.
1.
Remove the tie band bundling the wires.
2.
Disconnect the wire from the connector CN902 on
the power board.
3.
Disconnect the wire from the connector on the
cassette switch board.
4.
Remove the screw E retaining the bracket on the
earphone board.
5.
Disconnect the wires from the two connectors
CN201 and CN402 on the main board.
6.
Disconnect the wires from the two connectors
CN607 and CN608 on the CD & MCU board.
7.
Remove the four screws F and the two screws G
retaining the bracket of the CD mechanism
assembly from the left and right.
8.
Remove the screw H retaining the front panel
assembly from the bottom side of the main body.
9.
While opening the hooks d to the left and right of
the lower part of the front panel assembly (in the
direction of arrows 1), slide the front panel
assembly toward the front (in the direction of arrow
2).
Lift the rear
part to remove.
D
CD mechanism
assembly
CN402
Fig.7
Fig.8
(To be loosened)
D
Rear panel
CN201
CN608
Top cover
F
G
E
Earphone
board
Tie band
[Note] After assembly, apply a locking agent to
the screws F and G.
CD mechanism
assembly
F
G
CN607
Connector on the
cassette switch
board
Chassis
Power board
Fig.9
Hook d
Hook d
Fig.11Fig.10
CN902
1
Front panel assembly
2
H
1
1-7
UX-M3R
Removing the CD mechanism
assembly (See Figs. 12 to 14.)
Remove the left and right side panels.
Remove the top cover.
Remove the front panel assembly.
1.
Disconnect the wires from the four connectors
CN601, CN602, CN603 and CN701 on the CD &
MCU board.
2.
From the left side of the main body, remove the tie
band bundling the wires.
3.
Loosen the screw J retaining the main board.
4.
From the left and right sides of the main body,
remove the four screws K retaining the bracket.
5.
Slide the CD mechanism assembly toward the front
and remove it from the stud of the main board.
CD & MCU board
K
CN701
CN603
CD mechanism assembly
CD & MCU board
CN601
CN602
Fig.12
J
Tie band
Fig.13
CD & MCU board
K
Stud
Main board
1-8
Fig.14
UX-M3R
Removing the power board
(See Figs. 15 and 16.)
Remove the left and right side panels.
1.
Disconnect the wire from the connector CN901 on
the power board.
2.
Remove the two screws L retaining the chassis .
3.
Remove the power board by pinching the two studs
retaining the board using radio pliers, etc.
Power transformer
Chassis
Power board
Stud
CN901
L
Fig.15
Stud
Main board
Power board
Radio pliers, etc.
Stud
Removing the main board
(See Figs. 17 and 18.)
Remove the left and right side panels.
Remove the top cover.
Remove the front panel assembly.
Remove the CD mechanism assembly.
1.
Remove the two screws M retaining the speaker
terminal of the main board.
2.
From the top side of the main body, remove the
screw N retaining the heat sink of the main board.
3.
Remove the solder from the soldered part e that
attaches the FM antenna wire to the main board.
4.
Slide the main board toward the front to remove it
from the chassis.
[Note] After assembly, apply a locking agent to
the screw N.
M
Soldered part e
FM antenna wire
N
Chassis
Fig.16
Fig.17
Heat sink
Chassis
Rear panel
Speaker terminal
Main board
Power transformer
Fig.18
1-9
UX-M3R
<Front panel assembly section>
Remove the left and right side panels.
Remove the top cover.
Remove the front panel assembly.
Removing the key switch board
(See Fig. 19.)
Remove the ten screws P retaining the key switch
board.
Removing the cassette mechanism
assembly (See Fig. 19.)
Remove the two screws Q and the two screws R
1.
retaining the cassette mechanism assembly.
Remove the tie band bundling the REC/PB head
2.
wire.
[Caution] After assembly, apply a locking agent
to the screws Q and R.
Removing the cassette door damper
(See Fig. 19.)
Remove the screw S retaining the damper bracket
and take out the cassette door damper.
Removing the cassette door stopper
(See Fig. 19.)
Remove the two screws T retaining the cassette
door stopper and remove the cassette door
stopper.
Removing the cassette door cover
(See Fig. 20.)
[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 panels.
1.2.Open the cassette door.
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 cassette door.
Removing the cassette door
(See Figs. 21 and 22.)
Remove the cassette mechanism assembly.
Remove the cassette door cover.
1.
Open the cassette door, disengage the spring
hooked across the front of the front panel assembly
and the cassette door in the outward direction, and
remove it from the claw h.
Front panel assembly
P
Cassette door
sttoper
T
S
Damper bracker
Cassette door
damper
Cassette door
Claw f
Claw g
Cassette door cover
R
Fig.19
Fig.20
Key switch board
P
Q
Cassette
mechanism
assembly
R
Tie band
REC/PB head wire
Front panel assembly
Spring
Claw h
2.
From the back side of the front panel assembly,
remove the two screws U retaining the bracket.
3.
While pushing the arm section i of the cassette
door in the direction of the arrow, remove the shaft
section j of the cassette door from the front panel
assembly.
4.
While pushing the cassette door arm section k in
the direction of the arrow, remove the shaft section
m of the cassette door from the front panel
assembly.
5.
Take out the cassette door from the back side of
the front panel assembly.
[Caution] In the assembly, be sure to put the
spring around the shaft j before
attaching the cassette door.
1-10
Arm section i
Shaft section j
Spring
Disengage the spring so
that it comes to the front
of the claw h.
Fig.21
Front panel assembly
Arm section k
Shaft section m
Bracket
U
Fig.22
<CD mechanism section>
Remove the left and right side panels.
Remove the top cover.
Remove the front panel assembly.
Remove the CD mechanism assembly.
Removing the CD & MCU board
(See Figs. 23 and 24.)
1.
From the back side of the CD mechanism
assembly, remove the four screws V retaining the
CD & MCU board.
2.
Disengage the two studs retaining the CD & MCU
board.
3.
Disconnect the wires from the two connectors
CN702 and CN703 on the CD & MCU board.
4.
Lift the CD & MCU board and attach solder to the
short land part n on the CD pickup assembly.
Stud
Stud
CD & MCU board
CD & MCU board
Fig.23
CN704
UX-M3R
V
CN702
V
CD pickup unit
5.
Disconnect the card wire from the connector
CN704 on the CD & MCU board, and take out the
CD & MCU board.
[Caution] Be sure to solder the short land
part n on the CD pickup unit before
disconnecting the card wire from the
CD pickup assembly (see Fig. 24).
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 n
after connecting the card wire.
Removing the CD pickup assembly
(See Fig. 25.)
Remove the CD & MCU board.
1.
From the back side of the CD mechanism
assembly, remove the four screws W retaining the
CD pickup assembly.
CN703
CD pickup
assembly
W
CD mechanism assembly
Fig.24
CD pickup assembly
Damper(Gray)
Short land part n
Damper(Blue)
W
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.25
1-11
UX-M3R
Removing the tray motor
(See Figs. 26 to 29.)
Remove the CD & MCU board.
1.
On the top of the CD mechanism assembly, open
up the claws p and q at the left and right of the
clamper assembly and lift the assembly to remove
it.
2.
On the top of the CD mechanism assembly, push
the section r of the elevator in the direction of the
arrow and lower the CD pickup assembly.
3.
Pull out the tray.
4.
While opening up the claws s at the left and right of
the tray in the directions of the arrows, remove the
tray.
5.
While pushing the claw t on the CD mechanism
assembly downwards, slide the elevator fully in the
direction of the arrow.
6.
Remove the transparent cover.
CD mechanism assembly
Claw p
Claw q
Fig.26
Clamper assembly
Claw q
Tray
7.
Remove the belt from the tray motor pulley.
8.
Remove the two screws X retaining the tray motor
and remove it.
[Note] Take care not to attach grease on the
belt.
After attaching the tray motor in the
assembly, apply a locking agent to the
screws X.
Fig.27
r section
TrayClaw s
Claw s
Fig.28
CD mechanism assembly
Claw t
Tray motor pulley
1-12
Fig.29
X
Transparent
Belt
cover
UX-M3R
Replacing the CD pickup unit
(See Figs. 30 to 33.)
[Note] Use the following procedure to replace
only the CD pickup unit.
1.
Remove the left and right side panels (see Figs. 3
to 6).
2.
Remove the top cover (see Figs. 7 and 8).
3.
On the top of the main body, open up the claws p
and q on the left and right of the clamper assembly
in the direction of the arrows and lift the assembly
to remove it.
4.
On the top of the main body, push section r on the
elevator of the CD mechanism assembly and lower
the CD pickup assembly.
5.
Pull out the tray.
6.
Remove the slit washer retaining the feed middle
gear, and take out the feed middle gear.
Clamper assembly
Claw g
Claw p
Front panel assembly
Claw g
Fig.30
Front panel assembly
7.
Remove the two screws Y retaining the shaft.
8.
Turn the CD pickup unit upside down and apply
solder to the short land part n.
9.
Disconnect the card wire from the CD pickup unit
and replace the unit.
[Caution] Be sure to solder the short land
part n on the CD pickup unit before
disconnecting the card wire from the
CD pickup unit (see Fig. 33).
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 n
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. 33).
Y
Feed middle gear
Fig.31
CD pickup assembly
Y
Fig.32
Card wire
r section
TraySlit washer
Sliding spring
Short land part n
Fig.33
1-13
UX-M3R
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 :
H.phone output -10dBs(0.245V) 32 ohm
Speaker output 0dBs(2.8V) 8 ohm
Cassette amplifier section
Reference output :
H.phone output -10dBs(0.245V) 32 ohm
Speaker output 0dBs(2.8V) 8 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
AC240V/50Hz
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:
H.phone out
(with 32 ohm load)
Test tape:
VT712 (3kHz)
Signal output terminal:
H.phone out
(with 32 ohm load)
Test tape: VT702
Signal output terminal:
H.phone out
(with 32 ohm load)
Tape: Normal
Signal output terminal:
Cassette REC./PLAY
HEAD
Test tape: AC225
Signal input:
SG 1kHz -20dBs
with emphasis
Signal output terminal:
H.phone out
(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 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.
When the head azimuth is maladjusted, correct it with
3.
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 P207 is 68kHz 1kHz if not adjust L203 until the
frequency counter indicates 68 kHz 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 of the 1kHz signal differ from that of the 8kHz
signal by within (0+3dB-6dB).
Output level:
Within 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 for
1kHz singnal: Within
(0+3dB-6dB)
UX-M3R
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, P207
See Fig.3 on
page 1-16.
Tuner section
Item Measuring condition Check and adjustment procedure Standard value Adjusting part
AM IF adjustment 1.
AM tracking
adjustment
FM tracking
adjustment
Signal input:
Loop antenna
Signal output:
IC101 pin19
Signal input:
Loop antenna
Signal output:
H.phone out
(with 32 ohm load)
Signal input:
Dummy antenna
FM ANT
FM GND
Signal output:
H.phone out
(with 32 ohm load)
Set the intermediate frequency sweep generator to AM
450kHz.
Adjust T101 for maximum and center output.
2. T101
Set the TUNER at 522kHz adjust L101 until the test
1.
point P101 voltage at 1.1V 0.1V.
Set the TUNER at 1629kHz, check the test point P101
2.
voltage at 7.0V 0.3V.
Set the TUNER and S/G at 603kHz, adjust L102 for
3.
maximum output.
Set the TUNER and S/G at 1404kHz, adjust the TC102
4.
for maximum output.
Repeat the above steps 3 and 4.
5.
Set the TUNER at 87.5MHz adjust L106 until the test
1.
point P102 voltage at 2.3V 0.1V.
Set the TUNER at 108MHz, check the test point P102
2.
voltage at 6.5V 0.3V.
Set the TUNER and S/G at 90.1MHz, adjust L105 for
3.
maximum output.
Set the TUNER and S/G at 106.1MHz, adjust the
4.
TC101 for maximum output.
Repeat the above steps 3 and 4.
5.
See Fig.3 on
page 1-16.
L101
L102
TC102
See Fig.3 on
page 1-16.
L106
L105
TC101
See Fig.3 on
page 1-16.
1-15
UX-M3R
Location of adjusting parts
Cassette mechanism section
(Caution) For adjusting any head, be sure to use a screw driver degaussed.
max
Head
Adjustment
CASSETTE MOTOR
-
+
Main board
(AM ANT)
FM ANT
Azimuth adjustment screw
Fig.1 Head output signal
P101
(AM VT)
CN101
L101
(AM OSC)
L105
(FM RF)
P102
(FM VT)
TC101
(FM RF)
Tape Speed Adj.
Fig.2
L106
(FM OSC)
IC101
TA2104
1-16
TC102
(AM RF)
L102
(AM RF)
Fig.3
T101
(AM IF)
(BIAS FREQUENCY)
L203
(BIAS FREQUENCY ADJ.)
P207
Flow of functional operation until TOC read
UX-M3R
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 "RF" test point.
1-17
UX-M3R
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 "RF" test point.
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-M3R
Circuit Symptom Cause
No soundGeneral
AM Rotate or resposition the unit.
No sound, weak sound
(Low sensitivity)
Speakers are not connected.
Wrong function is selected.
Defective volume control
Defective earphone jack
Defect in IC601
Defect in IC301
Improper location of unit
Defect in IF T101
Defect AM antenna coil or oscilloscope coil
Intermediate frequency tuning faulty
RF tracking faulty
Defective IC101
Defective IC102
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.
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.
Remedy
Poor contact in antenna circuit
FM Connect the built-in or external antenna.
Tape Clean the capstan or head with alcohol.
CD Insert disc correctly.
No sound, weak sound
(Low sensitivity)
No sound/recording,
unsteady tape sound,
weak sound
Cannot read the table
of content.
No sound
FM antenna not connected
Defective band selector switch
Defective IC101
Defective IC102
Intermediate frequency tuning faulty
Poor contact in FM antenna circuit
Dirty capstan or head
Irregular cassette tape winding
Defective IC202
Cassette erasure prevention tabs broken out
Disc is inserted upside down.
Disc is dirty.
Disc is scratched.
Disc is seriously warped.
Check resistance and resolder.
Replace or repair the switch.
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.
Replace tape or cover tab openings with
adhesive tape.
Wipe clean with a soft cloth.
Use a new disc.
Use a new disc.
A non-standard disc has been inserted.
Moisture has formed inside the CD deck.
Defective IC701
Defective IC704
Defective TA2092N
Defect in the CD pickup mechanism
Use only a brand name disc.
Wait about 20 to 30 minutes.
Check voltages. Replace if necessary.
Check voltages. Replace if necessary.
Check voltages. Replace if necessary.
Replace as required.
1-19
UX-M3R
Description of major ICs
87EP26F-1J15 (IC601) : MCU
1. Terminal layout
80 51
81
(Top view)
50
100
130
2. Pin function
31
Pin No. Symbol I/O Function
1
VSS
2
XOUT
3
XIN
4
RESERT
5
XTOUT
6
XTIN
7
TEST
8
SHIFT FREQ.
9
REMOTE
10
MUTE
11
PLAY MUTE
12
REC MUTE
13
PLAY/REC
14
(SCK2)
15
(SI2)
16
(SO2)
17
REC SW (RVS)
/(WAIT)
18
REC SW (FWD)
-
GND (0V)
O
Resonator connecting pins for high clock(4-8MHz).
I
For inputting external clock, XIN is used and XOUT is opened.
I/O
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
Test pin for out-going test. Always fixed to low.
O
Shift the crystal oscillation frequency to reduce tuner noise.
I
Remote control signal input
O
Audio mute output
O
Muting output during play
O
Muting output during recording
O
Play or recording output, low for recording.
-
Not connect
-
Not connect
-
Not connect
I
Deck reverse record protection input. Low means can record on reverse
side.
I
Deck forward record protection input. Low means can record on forward
side.
19
SOL.
20
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 OUTPUT
29
CD-RW
30
RES
31
CCE
32
BUCK
O
Solenoid output for deck B.
I
Mode switch input of deck B. Low means the head is up.
O
TC9422F volume STB output
O
Power output control
I
Half switch input of deck B. Low means deck B have tape.
I/O
Jog dial input and TC9422F volume data output
I/O
Jog dial input and TC9422F volume clock output
I
BU1923F(RDS demodulator) interface CLK input
O
Motor output
I
Reel pulse input of deck B. Have pulse input means the tape is rotating.
O
CD-RW control output
O
CD servo reset output
O
Servo DSP chip enable output
O
Servo DSP clock output
1-20
Pin No. Symbol I/O Function
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
BUS0
BUS1
BUS2
BUS3
TRAY IN (SLOUT)
TRAY OUT (SLIN)
SLT
CLT (SLEND)
NC
RDS DATA
STEREO
PWR DET
AD K3
AD K2
AD K1
VAREF
(BOOT)
VSS
VDD
SEG39 0
COM3 0
VLC
PLL DATA
PLL CLK
PLL PRD
VDD
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
Servo DSP command and data I/O
O
Tray open/close outputs for current sensor drawer type mechanism.
O
I
CD pick up position input: L if pick up is in inner side.
I
Current sensor input
-
Not connect
I
BU1923F(RDS demodulator) interface data input
I
Stereo input pin for tuner stereo indication
I
Power down detection
I
Panel key analog inputs
I
Panel key analog inputs
I
Panel key analog inputs
-
Analog reference voltage input
I
Control input for writing MCU program area via ICU interface.
-
GND (0V)
-
VDD (+5V)
O
LCD segment outputs
O
LCD common outputs
-
LCD drive power supply
I/O
TC9257P (PLL) interface
O
TC9257P (PLL) interface
O
TC9257P (PLL) interface
-
VDD (+5V)
UX-M3R
UPC1330HA(IC201) : REC/PB audio head switch
1. Terminal layout
19
3. Pin function
Pin No. Symbol I/O
1
SW
R1
2
GND
3
SW
P1
4
CONT
5
GND
6
Vcc
7
SW
P2
8
GND
SW
R2
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
123456789
Function
INVERTER
COMPARATOR
1-21
UX-M3R
TC9462F (IC701) : Digital servo single chip processor built in 1bit DA converter
1. Terminal layout
80 ~ 51
100 ~ 81
1 ~ 30
31 ~ 50
2. Pin function
Pin No. Symbol I/O Function
1
2
3
TEST0
HSO
UHSO
I
Test mode terminal. Normally, keep at open
O
Playback speed mode flag output terminal.
O
UHSO HSO PLAYBACK SPEED
H H Normal
H L 2 times
L H 4 times
L L -
4
EMPH
O
Subcode Q data emphasis flag output terminal. Emphasis ON at "H" level and OFF
at "L" level. The output polarity can invert by command.
5
LRCK
O
Channel clock output terminal. (44.1kHz) L-ch at "L" level and R-ch at "H" level.
The output polarity can invert by command.
6
10
11
VSS1
7
BCK
8
AOUT
9
DOUT
MBOV
IPF
-
Digital ground terminal.
O
Bit clock output terminal. (1.4112MHz)
O
Audio data output terminal.
O
Digital data output terminal.
O
Buffer memory over signal output terminal. Over at "H" level.
O
Correction flag output terminal. At "H" level, AOUT output is made to correction
impossibility by C2 correction processing.
12
SBOK
O
Subcode Q data CRCC check adjusting result output terminal.
The adjusting result is OK at "H" level.
13
CLCK
I/O
Subcode P~W data readout clock input/output terminal.
This terminal can select by command bit.
14
15
16
17
18
19
20
21
22
VDD1
VSS2
DATA
SFSY
SBSY
SPCK
SPDA
COFS
MONIT
-
Digital power supply voltage terminal.
-
Digital ground terminal.
O
Subcode P~W data output terminal.
O
Playback frame sync signal output terminal.
O
Subcode block sync signal output terminal.
O
Processor status signal readout clock output terminal.
O
Processor status signal output terminal.
O
Correction frame clock output terminal. (7.35kHz)
O
Internal signal (DSP internal flag and PLL clock) output terminal.
Selected by command. This terminal output the text data with serial by command.
23
24
VDD2
TESIO0
-
Digital power supply voltage terminal.
I
Test input/output terminal. Normally, keep at "L" level. The terminal that inputted the
clock for read of text data by command.
25
26
27
28
29
P2VREF
HSSW
ZDET
PDO
TMAXS
-
PLL double reference voltage supply terminal.
O
2/4 times speed at "VREF" voltage.
O
1 bit DA converter zero detect flag output terminal.
O
Phase difference signal output terminal of EFM signal and PLCK signal.
O
TMAX detection result output terminal. Selected by command bit (TMPS).
1-22
Pin No. Symbol I/O Function
30
TMAX
O
TMAX detection result output terminal.
Selected by command bit (TMPS).
DIFFERENCE RESULT TMAX OUTPUT
Longer than fixed freq. "P2V
Shorter than fixed freq. "Vss"
Within the fixed freq. "HiZ"
REF
"
UX-M3R
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
LPF amplifier inverting input terminal for PLL.
I
LPF amplifier output terminal for PLL.
O
PLL reference voltage supply terminal.
VCO center frequency reference level terminal. Normally, keep at "PVREF" level.
I
VCO filter terminal.
O
Analog ground terminal.
Data slice level output terminal.
O
RF signal input terminal.
I
Analog power supply voltage terminal.
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.
I
Focus servo equalizer output terminal.
O
Tracking servo equalizer output terminal.
O
Analog reference voltage supply terminal.
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)
O
Analog double reference voltage supply terminal.
APC circuit ON/OFF indication signal output terminal. At the laser on time,
O
UHF = L at "HiZ" level and UHF = H at "H" level.
External flag output terminal for internal signal. Can select signal from TEZC, FOON,
O
FOK and RFZC by command.
External flag output terminal for internal signal. Can select signal from DFCT, FOON,
O
FMON and RFZC by command.
External flag output terminal for internal signal. Can select signal from TRON, TRSR,
O
FOK and SRCH by command.
External flag output terminal for internal signal. Can select signal from TRON, DMON,
O
HYS and SHC by command.
Digital power supply voltage terminal.
Digital ground terminal.
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
I/O
1-23
UX-M3R
Pin No. Symbol I/O Function
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
DMOUT
CKSE
DACT
TESIN
TRESIO1
VSS4
PXI
PXO
VDD4
XVSS
XI
XO
XVDD
DVSR
RO
DVDD
DVR
LO
DVSL
TEST1
TEST2
TEST3
BUS0
BUS1
BUS2
BUS3
VDD5
VSS5
BUCK
CCE
TEST4
TSMOD
RST
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.
1-24
AN7312 (IC202) : Dual recording/Playback pre-amplifier circuit with ALC
1. Terminal layout 2. Block diagram
14 8
17
~
~
3. Pin function
14 13 12 11 10
Ripple Filter
ALC
1 2 3 4 5 6
Amp.
Ch2
Amp.
Ch1
Pin No. Symbol I/O Function
1
GND
2
ALC time constant
3
ALC input Ch.1
4
Output Ch.1
5
Phase compensation Ch.1
6
N.E.B. Ch.1
7
Input Ch.1
8
Input Ch.2
9
N.E.B. Ch.2
10
Phase compensation Ch.2
11
Output Ch.2
12
ALC input Ch.2
13
Ripple filter
14
Vcc
-
GND
-
ALC time constant by resistance and capacitor
I
Right channel ALC input
O
Right channel output
-
Not connect
I
Right channel negative feed back input
I
Right channel signal input
I
Left channel signal input
I
Left channel negative feed back input
-
Not connect
O
Left channel output
I
Left channel ALC input
-
Ripple filter
-
Power supply
8
9
7
UX-M3R
BA4558N (IC402) : Dual operational amplifier
1. Terminal layout & Block diagram
1ch 2ch
2
34
5678
EE +IN2 -IN2 OUT2 Vcc
1
OUT1 -IN1 +IN1 V
2. Pin function
Pin No. Symbol I/O
1
2
3
4
5
6
7
8
LA4282 (IC401) : Power amplifier
1. Terminal layout & Block diagram
30k
300
CH1
Thermal
CH2
6
30k
NF2
over voltage
protector
Mute
circuit
7
89
OUT2
MUTE
Vcc
10 12
GND2
POWER
Vcc
1
NF1
2
IN1
Ripple
filter
34
RIPPLE
FILTER
PRE
GND
300
5
IN2
11
OUT1
POWER
2. Pin function
Pin No. Symbol I/O
1
2
3
4
5
6
7
8
GND1
9
10
11
12
OUT1
O
-IN1
+IN1
V
EE
+IN2
-IN2
OUT2
O
Vcc
NF1
IN1
RIPPLE FILTER
PRE GND
IN2
NF2
OUT2
MUTE
POWER GND2
Vcc
OUT1
POWER GND1
Function
A output
I
A - input
I
A + input
-
V-
I
B + input
I
B - input
B output
-
V+
Function
-
Right channel negative feed back
I
Right channel signal input
-
Ripple filter
-
PRE GND
I
Left channel signal input
-
Left channel negative feed back
O
Left channel output
-
Mute control
-
Power GND
-
Power supply
O
Right channel output
-
Power GND
1-25
UX-M3R
BU1923F (IC602) : RDS demodulator
1. Terminal layout 2. Block diagram
1
QUAL
RDATA
VREF
MUX
VDD1
VSS1
VSS3
CMP
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
RCLK
NC
XO
XI
VDD2
VSS2
T1
T2
MUX
VREF
VDD1
VSS1
4
3
5
Power supply
6
100k
120k
Analog
100k
+
anti-aliasing
filter
VSS3
8th Switched
capacitor filter
CMP
87
comparator
16
RCLK
1
QUAL
12
VDD2
Power supply
11
VSS2
3. Pin function
Pin No. Symbol I/O Function
Demodulator quality, good data: Hi, bad data: Low
O
Demodulator data
O
Reference voltage, 1/2 V
Composite signal input
I
Analog power supply
Analog power supply
Analog ground
Comparator input, C-junction
I
Test input, open or connected to ground
I
Test input, open or connected to ground
I
Digital power supply
Digital power supply
-
4.332MHz crystal oscillator input
I
4.332MHz crystal oscillator output
O
Not used
-
1187.5Hz demodulator clock
O
DD1
10
11
12
13
14
15
16
QUAL
1
R DATA
2
VREF
3
MUX
4
VDD1
5
VSS1
6
VSS3
7
CMP
8
T1
9
T2
VSS2
VDD2
XI
XO
NC
RCLK
PLL
Digital
57kHz
RDS/ARI
13 14 10 9
XO
Xl
PLL
1187.5Hz
Reference
clock
Bi-phase
decoder
Differential
decoder
Measurement
circuit
T2
T1
2
RDATA
NJM7812A (IC302) : Regulator
1. Terminal layout
1-26
1 2 3
1.INPUT
2.GND
3.OUTPUT (+12V)
2. Block diagram
1
INPUT
THERMAL SHUTDOWN
BANDGAP REFERENCE
OVER VOLTAGE PROTECTION
SOA PROTECTION
SHORT CIRCUIT
PROTECTION
3
GND
R1
R2
2
OUTPUT
TC9422F (IC301) : System electronic volume
1.Terminal Layout
1
GND
2
L-IN1
3
L-IN2
4
L-IN3
5
L-IN4
L-B1
L-B2
L-B3
L-T1
Vref
CK
6
7
8
9
10
11
12
13
14
L SW-OUT
L VR-IN
L TONE-OUT
VDD
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. Pin function
Pin No. Symbol I/O Function
1
GND
2 5
8 10
19 21
24 27
6
7
11
12
13
14
15
16
17
18
22
23
28
L-IN1 4
L SW-OUT
L VR-IN
L-B1 3
L TONE-OUT
L-T1
Vref
CK
DATA
STB
R-T1
R TONE-OUT
R-B3 1
R VR-IN
R SW-OUT
R-IN4 1
VDD
-
Ground pin
I
Audio signal input pin (L-ch)
O
Audio signal output pin (L-ch)
I
Main volume input pin (L-ch)
I
Tone control tap pin 1 3 for bus
O
Tone control output pin (L-ch)
I
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)
O
Tone control output pin (R-ch)
I
Tone control tap pin 3 1 for bus
I
Main volume input pin (R-ch)
O
Audio signal output pin (R-ch)
I
Audio signal input pin (R-ch)
-
Power supply voltage pin
UX-M3R
3. 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
1
10
CAPACITOR FOR
OSCILLATION
11
500
12
750
100
GAIN
CONTROL
0,6,12,18dB
MAIN VR
50 /64STEP
50
13
GND VDD
LATCH
DECODER
CIRCUIT
13
BASS VR
50 /16STEP
TREBLE VR
50 /16STEP
281
GAIN
CONTROL
0,6,12,18dB
BASS VR
50 /16STEP
TREBLE VR
50 /16STEP
INPUT SELECTOR
100
MAIN VR
50 /64STEP
50
CAPACITOR FOR
OSCILLATION
13
13
1
500
750
27
R-IN1
R-IN2
26
R-IN3
25
R-IN4
24
R SW-OUT
23
R VR-IN
22
R-B1
21
20
R-B2
R-B3
19
R Tone-OUT
18
17
R-T1
32BIT SR
50
50
Vref CK DATA STB
1613 14 15
1-27
UX-M3R
TC9257F (IC102) : PLL frequency synthesizer
1. Terminal layout
1
XT
2
XT
3
PRD
4
CLK
5
DATA
6
N.C
CD
AUX
7
8
9
10
TUNER
ST MONO
2. Block diagram
DATA
CLK
PRD
AMP
14
13
XT
2
XT
1
5
4
3
FM OSC
AM OSC
20
FM VT
19
AM VT
18
B1
17
B0
16
IF
15
GND
14
FM OSC
13
AM OSC
12
VDD
11
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
9876
CD
AUX
20bit BINARY COUNTER
UNIVERSAL COUNTER CONTROL
OT-4
12
24 22
XT
POWER ON
15
10
1ms
VDD
12
RESET
MAX
5
4
RESET
PHASE
COMPARATOR
UNLOCK
5
GATE
GND
15
TRI-STATE
BUFFER
TRI-STATE
BUFFER
OT4
I/O PORT
AMP
AMP
19
20
10
11
16
17
18
AM VT
FM VT
ST MONO
EE
IF
B0
B1
3. Pin function
Pin No. Symbol I/O Function
1
2
3
4
5
6
7
8
9
10
XT
XT
PRD
CLK
DATA
MUTE
TUNER
CD
AUX
ST MONO
I
Crystal oscillator pins
O
Crystal oscillator pins
I
Period signal input
I
Clock signal input
I/O
Serial data input/output
O
General-purpose output port
O
General-purpose output port
O
General-purpose output port
O
General-purpose output port
I/O
General-purpose I/O port
1-28
Pin No. Symbol I/O Function
11
12
13
14
15
16
17
18
19
20
EE
VDD
AM OSC
FM OSC
GND
IF
B0
B1
AM VT
FM VT
I/O
General-purpose I/O port
-
Power supply pin
I
Programmable counter input
I
Programmable counter input
-
Ground pin
I/O
General-purpose I/O port
I/O
General-purpose I/O port
I/O
General-purpose I/O port
O
Phase comparator output
O
Phase comparator output
TA2109F (IC704) : RF Amplifier
1.Terminal Layout
UX-M3R
2.Block Diagram
+
+
-
+
PEAK
BOTTOM
+
+
-
+
VCC
FNI
FPI
TPI
TNI
MDI
LDO
SEL
TEB
2VRO
TEN
TEO
10
11
12
RFN
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
GND
RFO
AGCI
RFGC
RFGO
RFIS
RFRP
VRO
FEN
FEO
SBAD
SBAD
FEO
FEN
VRO
RFRP
RFIS
RFGO
RFGC
AGCI
RFO
GND
RFN
13
14
-
15
16
17
18
19
20
21
22
23
24
3.Pin function
Pin No. Symbol I/O Function
1
VCC
2
FNI
3
FPI
4
TPI
5
TNI
6
MDI
7
LDO
8
SEL
-
Power supply input terminal
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 output terminal
I
Laser diode control signal input terminal and APC circuit ON/OFF control signal
input terminal
9
10
11
12
13
14
15
16
17
18
19
20
TEB
2VRO
TEN
TEO
SBAD
FEO
FEN
VRO
RFRP
RFIS
RFGO
RFGC
I
Tracking error balance adjustment signal input terminal Controlled by 3 PWM signal
O
Reference voltage (2Vref) output terminal 2Vref=4.2V when Vcc=5V
I
TE amplifier negative input terminal
O
TE error signal output terminal
O
Sub beam adder signal output terminal
O
Focus error signal output terminal
I
FE amplifier negative input terminal
O
Reference voltage (Vref) output terminal Vref=2.1V when Vcc=5V
O
Track count signal output terminal
I
RFRP detect circuit input terminal
O
RF gain signal output terminal
I
RF amplitude adjustment control signal input terminal controlled by 3 PWM signal
(PWM carrier =88.2 kHz)
21
22
23
24
AGCI
RFO
GND
RFN
I
RF signal amplitude adjustment amplifier input terminal
O
RF signal output terminal
-
Connect to GND
I
RF amplifier negative input terminal
3 STATE
DET
SW1 LDC
+
SW2
+
-
I-I
I-I
+
12
11
10
9
8
7
6
5
4
3
2
1
TEO
TEN
2VRO
TEB
SEL
LDO
MDI
TNI
TPI
FPI
FNI
Vcc
-
+
+
+
+
-
+
-
+
+
+
1-29
UX-M3R
TA2092N (IC703) : Power driver IC
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
Output reference voltage
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
-
TA7291S (IC702) : Bridge driver
1.Terminal Layout
123456789
VS
VCC
OUT2
NC
GND
OUT1
VREF
IN1
IN2
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
1-30
TA2104BN (IC101) : 1chip AM/FM, MPX tuner system
1. Terminal layout
UX-M3R
RFGND
FMRF IN
AM
MIX OUT
VCC
AMIF IN
FMIF IN
GND
AGC
QUAD
R OUT
L OUT
1
2
3
4
5
6
7
8
9
10
11
12
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
2. Block diagram
FM
RF OUTRFVCCAMRF INFMOSCAMOSC
2324 2122 1920 1718 1516 1314
FM
OSC
OSC
OUTSTLEDIFREQ
AM
OSC
FMRF
FMRF
LEVEL
DET
DET
OUT
IF
BUFF
1/8
SW
IF
REQ
AM
DET
AF
BUFF
ST
FM
DET
MIX
LPF1 LPF2
IN
AF
VCD
DECODE
DIVIDE
ST/MO
FM/AM
AM
MIX
FMRF
21 43 65 87 109 1211
RF
GNDFMRF IN
AM MIX
FM
MIX
OUT
VCC AM
3. Pin function
Pin No. Symbol Function
1
RFGND
2
FMRF IN
3
AM
4
MIX OUT
5
VCC
6
AMIF IN
7
FMIF IN
8
GND
9
AGC
10
QUAD
11
R OUT
12
L OUT
I/O
-
Ground terminal for RF
I
Input of FMRF signal
I
AM low frequency cut
O
Output of FM/AM RF mix
-
Power supply terminal
I
Input of AMIF signal
I
Input of FMIF signal
-
Ground terminal
I
AGC voltage input terminal
I
OSC terminal for FM DET.
O
Output R-channel
O
Output L-channel
AMIF FMIF
IF INFMIF IN
AGC
MUTE
GND AGC R-OUT L-OUTQUAD
Pin No. Symbol I/O Function
13
14
15
16
17
18
19
20
21
22
23
24
LPF2
LPF1
MPX IN
DET OUT
IF REQ
ST LED
OSC OUT
AM OSC
FM OSC
AMRF IN
RF VCC
FMRF OUT
I
FM/AM switch
I
Stereo/monoral switch
I
Multiplex signal input
O
AM/FM detection output
O
IF out/REQ out
O
Stereo indicator output
O
PLL data bus for FM or AM
-
AM local oscillation circuit
-
FM local oscillation circuit
I
Input of AMRF signal
-
Power supply terminal for RF
O
Output of FMRF signal
1-31
UX-M3R
Wiring connections
FMANT CN101
CN401
CN402
CN201
Main board
board
Earphone
Motor board
JP401
JP803
CN607
CD & MCU board
JP802
Back light board
Key switch board
JP801
1-32
CN902
Power
transformer
Power board
CN901
UX-M3R
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.21093
200204
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