SERVICE MANUAL
MICRO COMPONENT SYSTEM
UX-L40/UX-L30
UX-L40/UX-L30
UX-L40/UX-L30
BASS
SET
CD TAPE
CD
REV.MODEFM MODE
PRGM RANDOM REPEAT
RM-SUXL40U REMOTE CONTROL
UP
DOWN
SURROUNDAHB PRO
STANDBY / ON
COMPACT
DIGITAL AUDIO
STANDBY/ON
DISPLAY
CLOCK
/TIMER
SLEEP
TREBLE
CANCEL
FM/AM
AUX/MD
AUTO
PRESET
DIMMER
VOLUME
PHONES
SP-UXL40 SP-UXL40CA-UXL40
CD-R/RW PLAYBACK
REC SURROND AHB PRO
CLOCK/TIMER AUX/MD
MICRO COMPONENT SYSTEM UX-L40
VOLUME
+–
CD TAPE
FM/AM
UP
DOWN
BASS TREBLE
AUTO REVERSE
STANDBY/ON
1
3
2
4
5
6
DISPLAY
CLOCK
7
9
8
PUSH
OPEN
10
UP
BASS
SET
DOWN
CD/TAPE FM/AM AUX/MD
CD
REV.MODEFM MODE
PRGM RANDOM REPEAT
RM-SUXL30U REMOTE CONTROL
/TIMER
+10
SLEEP
TREBLE
CANCEL
AUTO
PRESET
AHB PRO
DIMMER
VOLUME
SP-UXL30 SP-UXL30CA-UXL30
UX-L40
Area Suffix
US ----------------- Singapore
UP ----------------------- Korea
UW ------- Brazil,Mexico,Peru
STANDBY / ON
COMPACT
DIGITAL AUDIO
PHONES
CD-R/RW PLAYBACK
REC REV. MODE AHB PRO
CLOCK/TIMER AUX/MD
MICRO COMPONENT SYSTEM UX-L30
VOLUME
+–
CD TAPE
FM/AM
UP
DOWN
BASS TREBLE
AUTO REVERSE
PUSH
OPEN
UX-L30
Area Suffix
US ----------------- Singapore
UP ----------------------- Korea
UW ------- Brazil,Mexico,Peru
UJ -------------------- U.S.Military
Contents
Safety precautions
Preventing static electricity
Important for laser products
Disassembly method
Adjustment method
1-2
1-3
1-4
1-5
1-19
Flow of functional operation
until TOC read (CD)
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
1-24
1-25
1-25
1-26~35
No.21105
Jul. 2002
1-1
UX-L40/UX-L30
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-L40/UX-L30
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
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the
replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power
source can easily destroy the laser diode.
4.Handling the traverse unit (optical pickup)
1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific
details, refer to the 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 flexible cable carefully as it may break when subjected to strong force.
4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to
detach the substrate.
Shorting round
1.Solder is put up before the card wire is removed from connector on
the CD substrate as shown in Figure.
(When the wire is removed without putting up solder, the CD pick-up
assembly might destroy.)
2.Please remove solder after connecting the card wire with
when you install picking up in the substrate.
Flexible wire
Shorting round
CN601 on
mechanism
board
1-3
UX-L40/UX-L30
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>
Removing the Metal cover
(See Fig.1 to 3)
UX-L40/UX-L30
A
1.
Remove the six screws A on the back of the main
body.
2.
Remove the screw B on each side and remove the
cover in the direction of the arrow.
A
A
Fig.1
B
B
Fig.2Fig.3
1-5
UX-L40/UX-L30
Removing the Rear cover
(See Fig.4)
Remove the metal cover.
1.
Remove the two screws C retaining the rear cover.
Removing the Rear panel
(See Fig.5)
Remove the metal cover and the rear cover.
C
C
Fig.4
1.
Remove the twelve screws D retaining the rear
panel. Release the two joints a on the rear side and
the joint b on each side.
D
D
D
D
a
DD
bb
Fig.5
1-6
Removing the Tuner board
(See Fig.6)
Remove the metal cover.
1.
Disconnect the card wire from connector CN1 on the
tuner board.
UX-L40/UX-L30
2.
Remove the two screws E on the rear side and the
screw F on the side.
Removing the Optical digital board
(See Fig.7)
Remove the metal cover.
F
E
CN1
Tuner board
Fig.6
Optical digital board
H
1.
Disconnect the shield wire from connector CN905 on
the optical digital board.
2.
Remove the screw G on the rear side and the screw
H on the upper side.
G
CN905
Fig.7
1-7
UX-L40/UX-L30
Removing the CD-R/RW mechanism
assembly (See Fig.8)
Remove the metal cover, the rear cover, the rear
panel, the tuner board and the optical digital board.
1.
Disconnect the card wire from connector CN903 and
CN904 on the main board.
2.
Pull the joint c in the direction of the arrow and
remove the CD-R/RW mechanism assembly
backward while releasing the joint d.
CD-R/RW mechanism
assembly
c
d
CN903
CN904
Fig.8
Main board
1-8
UX-L40/UX-L30
Removing the Main board/ the Heat sink
board (See Fig.9 to 11)
Remove the metal cover, the rear cover and the rear
panel.
1.
Disconnect the card wire from connector CN902,
CN903, CN904 and CN905 on the main board and
remove the CD-R/RW mechanism assembly.
REFERENCE:
2.
Remove the two screws I to remove the main board.
3.
Disconnect the card wire from connector CN931,
CN935, CN933, CN934, CN913, CN901, CN900 and
CN917 on the main board.
4.
Remove the band f and disconnect the card wire
from connector CN951 on the power transformer
assembly. Remove the main board / the heat sink
board from the body.
Refer to the method of removing the
CD-R/RW mechanism assembly and
Fig.8.
CD-R/RW mechanism assembly
CN905
CN902 CN904
CN903
e
CN915
I
CN916
I
Main board
Fig.9
5.
Release the joint e of the main board and disconnect
connector CN944 and CN945 of the heat sink board
from connector CN915 and CN916 of the main board
respectively.
Main board
Heat sink board
CN944
CN945
CN933
CN934
CN913
CN901
CN931
CN935
CN951
Main board
Heat sink board
CN900
CN917
f
Power transformer
assembly
Fig.10Fig.11
1-9
UX-L40/UX-L30
Removing the Power transformer
assembly (See Fig.12)
Remove the metal cover, the rear cover, the rear
panel, the CD-R/RW mechanism assembly and the
main board.
Disconnect the power cord from connector J1000 on
1.
the power transformer assembly.
Remove the four screws J.
2.
J
JJ
J1000
Power transformer
assembly
Fig.12
1-10
UX-L40/UX-L30
Removing the Front panel assembly
(See Fig.13 to 16)
Remove the metal cover.
Remove the screw K on each side. Pull the joint h
1.
on both sides and lift the front panel assembly to
release the joint g.
Disconnect connector CN931, CN935, CN933 and
2.
CN934 on the main board.
Disconnect the card wire from connector CN33 and
3.
CN34 on the cassette mechanism board.
Front panel
assembly
h
Main board
g
K
Fig.13
g
Front panel
assembly
CN34 CN33
CN935 CN931
Fig.14
g
CN933
CN934
h
K
Cassette mechanism
assembly
Cassette mechanism
board
hh
Fig.15Fig.16
1-11
UX-L40/UX-L30
Removing the Phones board
(See Fig.17)
Prior to performing the following procedure, remove
the metal cover and the front panel assembly.
1.
Disconnect connector CN913 on the main board.
Main board
CN913
Phones board
Fig.17
Removing the Cassette mechanism
assembly (See Fig.18)
Prior to performing the following procedure, remove
the metal cover and the front panel assembly.
1.
Remove the four screws L retaining the cassette
mechanism assembly.
L
L
Cassette mechanism
assembly
Fig.18
1-12
Removing the Control board
(See Fig.19)
Prior to performing the following procedure, remove
the metal cover and the front panel assembly.
1.
Remove the seven screws M to remove the control
board.
UX-L40/UX-L30
M
Removing the Volume board
(See Fig.20 and 21)
Prior to performing the following procedure, remove
the metal cover and the front panel assembly.
Control board
N
M
Fig.19
N
1.
Remove the four screws N attaching the volume
panel on the front panel assembly.
2.
Remove the six screws O attaching the volume
board on the volume panel, and remove the volume
board.
O
Fig.20
Volume panel
Volume board
O
O
Fig.21
1-13
UX-L40/UX-L30
<CD mechanism assembly section>
Removing the CD servo board
(See Fig.1, 2)
CAUTION:
1.
Remove the two screws A on the bottom of the
loading base.
2.
Disconnect the card wire from connector CN606 on
the CD servo board. Turn over the CD servo board
as shown in Fig.2 and put aside temporarily.
3.
Solder the shorting round on the pickup board in the
CD pickup section.
4.
Disconnect the card wire from connector CN601 and
the wire from CN801 on the CD servo board.
CAUTION:
Solder the shorting round before disconnecting
the card wire extending from the pickup. If
you do not follow this instruction, the pickup
may be damaged.
When reassembling, make sure to unsolder
the shorting round after connecting the card
wire from the pickup to the connector.
CD servo board
CN601
CN606
CN801
A
Fig.1
CD servo board
CN801
CN601
1-14
Shorting round
Pickup board
CD pickup
CD pickup
Shorting round
(Soldering)
Fig.2
UX-L40/UX-L30
Removing the clamper base / tray
(See Fig.3 ~ 5)
1.
Bring up the fitting in the direction of the arrow to
release the three joints a.
2.
On the front side of the body, move the cam plate
lever to the center.
3.
Remove the stopper screw B and pull out the tray
toward the front.
4.
Remove the four screws C attaching the clamper
base.
5.
From the rear side, remove the clamper base
upward.
Tray
Joint a
Fig.3
Fitting
Joint a
Tray
C
B
Clamper
C
Cam plate
(Lever)
Fig.4
Clamper base
C
Tray
Fig.5
1-15
UX-L40/UX-L30
Removing the CD mechanism assembly
(See Fig.6, 7)
Prior to performing the following procedure, remove
the clamper base / tray and the CD servo board.
1.
Remove the screw D attaching the CD mechanism
assembly.
2.
Move the CD mechanism assembly backward to
release the two joints b of the CD base on the front
side.
CAUTION:
When reassembling, fit the front part of the
CD mechanism assembly to the two
chassis joints b and attach the four
dampers correctly.
CD mechanism assembly
damper
damper
CD mechanism assembly
D
damper
damper
b
Fig.6
D
CD base
b
Fig.7
1-16
Removing the loading motor / loading
motor board (See Fig.8, 9)
Prior to performing the following procedure, remove
the clamper base / tray and the CD servo board.
1.
From upside of the loading base, remove the belt
from the motor pulley.
2.
Remove the two screws E attaching the loading
motor.
3.
At the bottom of the body, release the three joints c
outward and pull out the loading motor board from
the shaft. The loading motor comes off with the
loading board.
4.
Unsolder the two soldered points d on the loading
motor board and remove the loading motor.
REFERENCE:
When removing the loading motor board
only, unsolder the two soldering d on the
loading motor and release the three joints c.
Soldering d
Loading motor
Loading motor
Belt
E
Fig.8
c
Loading motor board
UX-L40/UX-L30
E
Motor pulley
c
Fig.9
1-17
UX-L40/UX-L30
Removing the C.D. gear (1), (2) and (3)
(See Fig.10 ~ 13)
Prior to performing the following procedure, remove
the CD servo board.
1.
Remove the two screws F attaching the CD base on
the bottom of the loading base.
2.
Remove the rear part of the CD base upward and
pull out the shaft e of the CD base from the camplate
on the front side of the loading base.
REFERENCE:
3.
Remove the leaf spring on the upside of the loading
base.
4.
Remove the screw G attaching the cam plate fitting.
5.
Remove the screw H and the cam plate upward.
The CD mechanism assemly comes off
with the CD base.
FF
e
CD base
(Bottom)
Loading base
Fig.10
CD mechanism assembly
F
6.
Remove the belt from the C.D. gear (1).
7.
Pull out the C.D. gear (1), (2) and (3) respectively.
Cam plate fitting
G
Cam plate
H
F
CD base
Loading base
Fig.11
C.D. gear (3)
Belt
1-18
Spring
C.D. gear (2)
C.D. gear (1)
Fig.13Fig.12
Adjustment method
UX-L40/UX-L30
Measurement Instruments Required for
Adjustment
1. Low frequency oscillator
This oscillator should have a capacity to output
0dBs to 600
50Hz-20kHz.
2. Attenuator impedance : 600
3. Electronic voltmeter
4. Distortion meter
5. Frequency counter
6. Wow & flutter meter
7. Test tape
VT703L : Head azimuth
VT712 : Tape speed and running unevenness
(3kHz)
VT724 : Reference level (1kHz)
8. Blank tape
TYPE
TYPE : AC-514
9. Torque gauge : For play and back tension
FWD(TW2111A), REV(TW2121a) and
FF/REW(TW2231A)
10. Test disc: CTS-1000
Measurement conditions
Power supply voltage
AC110V/127V/220V/230V 240V , adjustable
Reference output : Speaker : 0.775V/4
: Headphone : 0.077V/32
Reference frequency and
input level ------------------------------ 1kHz, AUX : -8dBs
Measurement output terminal ------- at Speaker J3002
Load resistance --------------------------- 4
Radio Input signal
AM frequency --------------------------------------- 400Hz
AM modulation ---------------------------------------- 30%
FM frequency --------------------------------------- 400Hz
FM frequency deviation ------------------------ 22.5kHz
at an oscillation frequency of
: AC-225
Tuner section
FM tuning range: 87.5MHz 108.00MHz
AM tuning range:
At 9kHz intervals: 531kHz 1,710kHz
At 10kHz intervals: 530kHz 1,710kHz
Voltage applied to tuner +B : DC5.7V
VT : DC 12V
Reference measurement
output 26.1mV(0.28V)/3
Input positions AM : Standard loop antenna
FM : TP1 (hot) and TP2 (GND)
Standard measurement position of volume
Function switch to Tape
Beat cut switch to Cut
Super Bass/Active hyper Bass to OFF
Bass Treble to Center
Adjustment of main volume to reference output
VOL : 28
Precautions for measurement
1. Apply 30pF and 33k
side and 0.082 F and 100k in series to the
sweeper input side.
2. The IF sweeper output level should be made as
low as possible within the adjustable range.
3. Since the IF sweeper is a fixed device, there is no
need to adjust this sweeper.
4. Since a ceramic oscillator is used, there is no need
to perform any MIX adjustment.
5. Since a fixed coil is used, there is no need to adjust
the FM tracking.
6. The input and output earth systems are separated.
In case of simultaneously measuring the voltage in
both of the input and output systems with an
electronic voltmeter for two channels, therefore, the
earth should be connected particularly carefully.
7. In the case of BTL connection amp., the minus
terminal of speaker is not for earthing. Therefore, be
sure not to connect any other earth terminal to this
terminal. This system is of an BTL system.
8. For connecting a dummy resistor when measuring
the output, use the wire with a greater code size.
9. Whenever any mixed tape is used, use the band
pass filter (DV-12).
to the IF sweeper output
1-19
UX-L40/UX-L30
<<
Arrangement of Adjusting Position
>>
Cassette mechanism section
Head azimuth
adjusting screw
(Forward side)
Cassette AMP board
VR37
C308
R314
MOTOR SPEED
VR37
L301
B155
VR31
BIAS ADJ
VR31
Head azimuth
adjusting screw
(Reverse side)
MB
PBRAGPBL
RECRAGRECL
MS
SW8V
MG
1
CN34
C307
R313
C310
R315
C314
Q302
R327
C317
C319
C221
B112
C313
C121
L303
C316
R310
R335
B198
R353
Q305
C106
Q103
R305
R303
R122
Q101
C103
B163
Q321
R221
10
B156
C303
R115
B157
R108
R101
C113
R110
R109
R102
C110
C104
R301
R121
1
C108
C107
9
B151
R112
R111
C102
R107
B152
C302
R103
1
C301
C111
C306
B164
Cassette mechanism section (Back side)
Head azimuth
adjusting screw
(Forward side)
Playback/Recording &
eraser head
R304
C109
B158
8
B106
C101
6
B166
R116
R212
R211
C211
R216
9
IC32
9
C201
B101
B109B108
C209
CN33
R342
C213
R210
R209
C207
B159
16
B102
R341
C208
R207
1
B110
CN31
B200
1
R205
R208
B160
R343
R340
R105
C105
C206
R345
NC
C305
R201
1IC31
TAP
B113
C304
RRE
C202
C210
Q331
C375
C205
C203
B161
R215
R339
C334
R106
R206
5VMGSOL
R204
R203
B153
R104
R222
C204
B168
PHO
R202
C333
C332
R375
Q201
PLA
Q203
C331
Q372
R331
B167
FRE
R371
C376
10
70u
Q375
CN32
R376
R372
R373
B162
C371
16
1
C374
R338
B
E
D375
Q376
B
Q371
E
R337
R336
9
IC33
8
Head azimuth
adjusting screw
(Reverse side)
1-20
Tape Recorder Section
UX-L40/UX-L30
Items
Confirmation
of head angle
Measurement
conditions
Test tape
: VT703L (8kHz)
Measurement output
terminal
: Speaker terminal
Speaker R
(Load resistance: 4 )
: Headphone terminal
Measurement method
1 Playback the test tape VT703L (8kHz)
2 With the recording & playback mechanism,
adjust the head azimuth screw so that the
forward and reverse output levels become
maximum. After adjustment, lock the head
azimuth at least by half turn.
3 In either case, this adjustment should be
performed in both the forward and reverse
directions with the head azimuth screw.
Confirmation
of tape speed
Test tape
: VT712 (3kHz)
Measurement output
terminal
: Headphone terminal
Adjust VR37 so that the frequency counter
reading becomes 2,940~3,090Hz when
playing back the test tape VT712 (3kHz) with
playback and recording mechanism after
ending forward winding of the tape.
Reference Values for Confirmation Items
Standard
Values
Maximum
output
Tape speed
of deck
: 2,940 ~
3,090Hz
Adjusting
positions
Adjust the head
azimuth screw
only when the
head has been
changed.
VR37
Items
Difference
between the
forward and
reverse speed
Measurement
conditions
Test tape
: VT712 (3kHz)
Measurement output
terminal
: Speaker terminal
Speaker R
(Load resistance: 4 )
Measurement output
terminal
: Headphone
Wow & flutter Test tape
: VT712 (3kHz)
Measurement output
terminal
: Headphone terminal
Measurement method
Standard
Values
When the test tape VT712 (3kHz) has been
played back with the recording and playback
mechanism at the beginning of forward
winding, the frequency counter reading of the
difference between both of the mechanism
should be 6.0Hz or less.
When the test tape VT712 (3kHz) has been
played back with the recording and playback
mechanism at the beginning of forward
winding, the frequency counter reading of
wow & flutter should be 0.25% or less
(WRMS).
6.0Hz or
less
0.25% or
less
(WRMS)
Adjusting
positions
Head azimuth
screw
1-21
UX-L40/UX-L30
Electrical Performance
Items
Adjustment of
recording bias
current
(Reference
Value)
Adjustment of
recording and
playback
frequency
characteristics
Measurement
conditions
Mode: Forward or
reverse mode
Recording mode
Test tape
: AC-514 to TYPE
and AC-225 to
TYPE
Measurement output
terminal
: Both recording and
headphone terminals
Reference frequency
: 1kHz and 10kHz
(REF.: -20dB)
Test tape
: AC-514 to TYPE
Measurement input
terminal
: OSC IN
Measurement method
Standard
Values
1 With the recording and playback
mechanism, load the test tapes (AC-514 to
TYPE
and AC-225 to TYPE ), and set
the mechanism to the recording and
pausing condition in advance.
2 After connecting 100 in series to the
recorder head, measure the bias current
with a valve voltmeter at both of the
terminals.
3 After resetting the [PAUSE] mode, start
recording. At this time, adjust VR31 for Lch
and VR32 for Rch so that the recording
bias current values become 4.0 A (TYPE
) and 4.20 A (TYPE ).
1 With the recording and playback
mechanism, load the test tapes (AC-514 to
TYPE
), and set the mechanism to the
recording and pausing condition in
advance.
2 While repetitively inputting the reference
frequency signal of 1kHz and 10kHz from
OSC IN, record and playback the rape.
3 While recording and playback the test tape
in TYPE , adjust VR31 for Lch and VR32
for Rch so that the output deviation
between 1kHz and 10kHz becomes
-1dB 2dB.
AC-225
: 4.20
AC-514
: 4.0 A
Output
deviation
between
1kHz and
10kHz
: -1dB
Adjusting
positions
VR31
A
VR31
2dB
Reference Values for Electrical Function Confirmation Items
Items
Recording
bias
frequency
Measurement
conditions
Forward or reverse
Test tape
: TYPE (AC-514)
Measurement
terminal : BIAS TP on
P.C. board
Measurement method
1 While changing over to and from BIAS 1
and 2, confirm that the frequency is
changed.
2 With the recording and playback
mechanism, load the test tape.
(AC-514 to TYPE ), and set the
mechanism to the recording and pausing
condition in advance.
3 Confirm that the BIAS TP frequency on the
P.C. board is 100kHz 6kHz.
Eraser
current
(Reference
value)
Forward or reverse
Recording mode
Test tape
: AC-514 to TYPE
and AC-225 to
TYPE
Measurement
terminal : Both of the
eraser head terminals
1 While recording and playback mechanism,
load the test tapes (AC-514 to TYPE
and AC-225 to TYPE ), and set the
mechanism to the recording and pausing
conditions in advance.
2 After setting to the recording conditions,
connect 1W in series to the eraser head on
the recording and playback mechanism
side, and measure the eraser current from
both of the eraser terminals.
Standard
Values
100 kHz
6 kHz
TYPE
: 120 mA
TYPE
: 75 mA
Adjusting
positions
1-22
Extension code connecting method
CD mechanism assembly
UX-L40/UX-L30
1-23
UX-L40/UX-L30
Flow of functional operation until TOC read (CD)
Power ON
Power Key
Slider turns REST
SW ON.
Automatic tuning
of TE offset
Check that the voltage at the pin4
of CN601 is 0V (a moment)?
Check Point
VREF
Tracking error waveform at TOC reading
pin 20 of
IC601(TE)
Approx
1.8V
Tracking
servo
Disc statas
to rotate
off statas
Automatic measurement
of TE amplitude and
automatic tuning of
TE balance
Approx.3sec
Tracking
servo
on statas
Disc to be
braked to stop
TOC reading
finishes
500mv/div
2ms/div
Fig.1
Laser ON
Detection of disc
Automatic tuning of
Foucus offset
Automatic measurement of
Focus A-curve amplitude
Disc is rotated
Focus servo ON
(Tracking servo ON)
Automatic measurement of
Tracking error amplitude
Automatic tuning of
Tracking error balance
Check that the voltage at the
pin2 of IC601 is 0V?
Confirm that the Focus error
S-cuve siganl at the pin23 of
IC601 is approx.2Vp-p
Confirm that the siganl from
pin22 IC603 is 0V as a
accelerated pulse during
approx.400ms.
Confirm the waveform of
the Tracking error signal
at the pin20 of IC601
(See fig-1)
1-24
Automatic tuning of
Focus error balance
Automatic tuning of
Focus error gain
Automatic tuning of
Tracking error gain
TOC reading
Play a disc
Confirm the eys-pattern
at the lead of TP1
UX-L40/UX-L30
Maintenance of laser pickup
(1) Cleaning the pick up lens
Befor you replace the pick up, please try to
clean the lens with a alcohol soaked cotton
swab.
(2) Life of the laser diode (Fig.1)
When the life of the laser diode has expired,
the following symptoms wil appear.
(1) The level of RF output (EFM output:ampli
tude of eye pattern) will below.
Is RF output
1.1 0.15Vp-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 "Pickup Removal" on the previous page)
Plug the power cord in,and turn the power on.
At this time,check that the laser emits for
about 3seconds and the objective lens moves
up and down.
Note: Do not observe the laser beam directly.
Play a disc.
(Fig.1)
(3) Semi-fixed resistor on the APC PC board
The semi-fixed resistor on the APC printed
circuit board which is attached to the pickup
is used to adjust the laser power.Since this
adjustment should be performed to match the
characteristics of the whole optical block,
do not touch the semi-fixed resistor.
If the laser power is lower than the specified
value,the laser diode is almost worn out, and
the laser pickup should be replaced.
If the semi-fixed resistor is adjusted while
the pickup is functioning normally,the laser
pickup may be damaged due to excessive current.
Check the eye-pattern at TP1.
Finish.
1-25
UX-L40/UX-L30
Description of major ICs
LC75345M-X (IC901) : E.volume
1. Pin layout
CL
VDD
ROPOUT
RINM
RINP
ROOUT
RSB
36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19
DI
CE
VSS
LOPOUT
LINM
LINP
LOUT
RBASS2
RBASS1
LSB
LBASS2
RTRE
RVRIN
LTRE
LBASS1
RSELOR5R4
L5
LVRIN
LSELO
R3
L4
R2
L3
R1
L2
Vref
181716151413121110987654321
L1
2. Block diagram
14
L5
15
L4
16
L3
17 18
L2
L1
19
Vref
20
R1
21
R2
22 23
R3
R4
24
R5
LSELO
13
LV RI N
12
LT RE
11
LVref
RVref
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
LBASS1
10
LBASS2
9
LSB
8
CCB
INTERFACE
LOUT
7
6
LINP
5
LINM
LOPOUT
34
VSS
2
CE
1
DI
36
CL
35
VDD
34
ROPOUT
33
RINM
32
RINP
1-26
25
RESLO
26
RVRIN
27
RTRE
28
RBASS1
29
RBASS2
30
RSB
31
ROUT
3. Pin function
UX-L40/UX-L30
Pin No.
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
29
30
31
32
33
34
35
36
Symbol
DI
CE
VSS
LOPOUT
LINM
LINP
LOUT
LSB
LBASS2
LBASS1
LTRE
LVRIN
LSELO
L5
L4
L3
L2
L1
Vref
R1
R2
R3
R4
R5
RSELO
RVRIN
RTRE
RBASS1
RBASS2
RSB
ROUT
RINP
RINM
ROPOUT
VDD
CL
Function
Serial data and clock input pin for control.
Chip enable pin.
Ground pin.
Output pin of general-purpose operation amplifier.
Non-inverted input pin of general-purpuse operation amplifier.
Non-inverted input pin of general-purpuse operation amplifier.
ATT + equalizer output pin.
Capacitor and resistor connection pin comprising filters for bass and super-bass band.
Capacitor and resistor connection pin comprising filters for bass and super-bass band.
Capacitor and resistor connection pin comprising filters for bass and super-bass band.
Capacitor and resistor connection pin comprising treble band filter.
Volume input pin.
Input selector output pin.
Input signal pin.
Input signal pin.
Input signal pin.
Input signal pin.
Input signal pin.
0.5 x VDD voltage generation block for analog ground.
Input signal pin.
Input signal pin.
Input signal pin.
Input signal pin.
Input signal pin.
Input selector output pin.
Volume input pin.
Capacitor connection pin comprising treble band filter.
Capacitor and resistor connection pin comprising filter for bass and super-bass band.
Capacitor and resistor connection pin comprising filter for bass and super-bass band.
Capacitor and resistor connection pin comprising filter for bass and super-bass band.
ATT + equalizer output pin.
Non inverted input pin of general-purpose operation amplifier.
Non inverted input pin of general purpose operation amplifier.
Output pin of general-purpose operation amplifier.
Supply pin.
Serial data and clock input pin for control.
1-27
UX-L40/UX-L30
LA6541-X (IC801) : Servo driver
1. Pin Layout & block diagram
Vcc Vref Vin4 Vg4 Vo8 Vo7
24 23
11k
ohm
22
21
20
19
Vcc
Gnd
Vo6 Vo5 Vg3 Vin3 Cd Res
18
17 16
- +
- +
Level
shift
Level
shift
11k
ohm
1
2
3456
Vcc Mute Vin1 Vg1 Vo1 Vo2 Vo3 Vo4 Vg2 Vin2 Reg
B T L
driver
B T L
driver
Gnd
B T L
driver
B T L
driver
7 8 9101112
Level
shift
Level
shift
2. Pin function
Pin
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Symbol
Vcc
Mute
Vin1
Vg1
Vo1
Vo2
Vo3
Vo4
Vg2
Vin2
Reg Out
Reg In
Res
Cd
Vin3
Vg3
Vo5
Vo6
Vo7
Vo8
Vg4
Vin4
Vref
Vcc
Power supply (Shorted to pin 24)
All BTL amplifier outputs ON / OFF
BTL AMP 1 input pin
BTL AMP 1 input pin (For gain adjustment)
BTL AMP 1 input pin (Non inverting side)
BTL AMP 1 input pin (Inverting side)
BTL AMP 2 input pin (Inverting side)
BTL AMP 2 input pin (Non inverting side)
BTL AMP 2 input pin (For gain adjustment)
BTL AMP 2 input pin
External transistor collector (PNP) connection. 5V power supply output
External transistor (PNP) base connection
Reset output
Reset output delay time setting (Capacitor connected externally)
BTL AMP 3 input pin
BTL AMP 3 input pin (For gain adjustment)
BTL AMP 3 output pin (Non inverting side)
BTL AMP 3 output pin (Inverting side)
BTL AMP 4 output pin (Inverting side)
BTL AMP 4 output pin (Non inverting side)
BTL AMP 4 output pin (For gain adjustment)
BTL AMP 4 output pin
Level shift circuit's reference voltage application
Power supply (Shorted to pin 1)
Function
15
11k
ohm
14
13
RESET
Regulator
11k
ohm
out
Reg
In
1-28
TDA7294 (IC940, IC941) : Audio amp.
1. Pin layout
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
2. Block diagram
BOOTSTRAP
UX-L40/UX-L30
-Us (POWER)
OUT
+Us (POWER)
N.C.
N.C.
MUTE
STAND-BY
-Us (SIGNAL)
+Us (SIGNAL)
BOOTSTRAP
N.C.
SUR
NON INUERTING INPUT
INVERTING INPUT
STAND-BY GND
+Vs
IN+
IN-
BIPOLAR
TRANSCONDUCTANCE
INPUT STAGE
LEVEL SHIFTING
STAGE
BOOTSTRAP
OUTPUT
-Vs
MOS CUTPUT STAGEMOS GHAIN &
SHORT CIRCUIT
PROTECTION
1-29
UX-L40/UX-L30
AN22000A-W (IC601) : RF head amp.
1. Pin layout
2. Block diagram
14
OFTR
13
COFTR
12
BDO
11
BCDO
CEA
9
OFTR
BDO
1234 5678910111213141516
3TOUT
10
3TENV
NRFDET
15
FEN
22
FEOUT
23
SUBT
TEN
21
20
SUBT
19
17181920212223242526272829303132
18
VDET
PDLDVDETTEBPFTEOUT
2
1
3
VCC
16
GND
252624
8
ARF
7
CAGC
RFIN
56
RFOUT
4
RFN
3. Pin function
Pin No.
Function
APC amp input terminal.
1
APC amp output terminal.
2
Power supply.
3
RF amp negative input terminal.
4
RF amp output terminal.
5
AGC input terminal.
6
AGC loop filter capacitor connection terminal.
7
AGC output terminal.
8
Capacitor connection terminal for HPF-amp.
9
3TENV output terminal.
10
Capacitor connection terminal for RF enberope detection.
11
BDO output terminal.
12
Capacitor connection terminal for RF enverope detection.
13
OFTR output terminal.
14
NRDET output terminal.
15
Ground terminal.
16
AGC
RF_EQ
NRFDET
GCTL TBAL FBAL
GCA BCA
AMP
32
31
A
C
GCA BCA
AMP
30
29
B
D
GCA BCA
AMP
27
E
Pin No.
GCA BCA
AMP
28
F
Function
VREF output terminal.
17
VDET output terminal.
18
VDET input terminal.
19
TE amp. output terminal.
20
TE amp. negative input terminal.
21
FE amp. negative input terminal.
22
FE amp. output terminal.
23
GCTL & APC terminal.
24
FBAL control terminal.
25
TBAL control terminal.
26
Tracking signal input terminal 1.
27
Tracking signal input terminal 2.
28
Focus signal input terminal 4.
29
Focus signal input terminal 3.
30
Focus signal input terminal 2.
31
Focus signal input terminal 1.
32
17
VREF
1-30
MN662748RPMFA (IC651) : DSP
1. Terminal layout
80~61
1
60
UX-L40/UX-L30
20
21~40
2. Pin function
Pin
No
1 BCLK
2 LRCK
3 SRDATA
4 DVDDI
5 DVSSI
6TX
7 MCLK
8 M DATA
9 MLD
10 SENSE
11 FLOCK
12 TLOCK
13 BLKCK
14 SQCK
15 SUBQ
16 DMUTE
17 STAT
18 RST
19 SMCK
20 PMCK
21 TRV
22 TVD
23 PC
24 ECM
25 ECS
26 KICK
27 TRD
28 FOD
29 VREF
30 FBAL
31 TBAL
32 FE
33 TE
34 RFENV
35 VDET
36 OFT
37 TRCRS
38 /RFDET
39 BDO
40 LDON
41
Symbol Function
I/O I/O
-
Not use
-
Not use
-
Not use
-
Power supply for digital circuit
-
GND for digital circuit
-
Not use
I
Micro computer command
clock signal input
I
Micro computer command
data input
I
Micro computer command
load signal input (L: Load)
-
Not use, connect to TP716
-
Not use, connect to TP717
-
Not use, connect to TP718
O
Sub code block clock
signal output
I
External clock input for sub
code Q register input
O
Sub code Q data output
-
Not use, connect to TP719
O
Status signal input
I
Reset signal input (L: Reset)
-
Not use
-
Not use, connect to TP720
O
Traverse enforced output
O
Traverse drive output
-
Not used
O
Spindle motor drive signal
(Enforced mode output)
O
Spindle motor drive signal
(Servo error signal output)
O
Kick pulse output
O
Tracking drive output
O
Focus drive output
I
Reference voltage
for D/A output block
O
Focus balance adjust
signal output
O
Tracking balance adjust
signal output
I
Focus error signal input
(Analog input)
I
Tracking error signal input
(Analog input)
RF envelope signal input
I
(Analog input)
Vibration detect signal
I
input (H:Detect)
Off track signal input
I
(H:Off track)
Track cross signal input
I
RF detect signal input
I
(L:Detect)
Drop out signal input
I
(H:Drop out)
Laser on signal output
O
(H:ON)
Pin
No
41 PLLF2
42 TOFS
43 WVEL
44 ARF
45 IREF
46 DRF
47 DSLF
48 PLLF
49 VCOF
50 AVDD2
51 AVSS2
52 EFM
53 PCK
54 VCOF2
55 SUBC
56 SBCK
57 VSS
58 X1
59 X2
60 VDD
61 BYTCK/TRVSTP
62 CLDCK
63 FCLK
64 IPFLAG
65 FLAG
66 CLVS
67 CRC
68 DEMPH
69 RESY
70 IOSEL
71 /TEST
72 AVDD1
73 OUTL
74 AVSS1
75 OUTR
76 RSEL
77 CSEL
78 PSEL
79 MSEL
80 SSEL
Symbol Function
-
Not use
Not use
Not use
RF signal input
I
Reference current input
I
Bias pin for DSL
I
Loop filter pin for DSL
I/O
Loop filter pin for PLL
I/O
Loop filter pin for VCO
I/O
Power supply for analog
circuit
GND for analog circuit
Not use, connect to TP724
Clock output for PLL
O
Loop filter pin for Digital
I/O
servo VCO
Not use
Not use
GND for crystal oscillation
circuit
Input for crystal oscillation
I
circuit (f=16.9344MHz)
Output for crystal oscillation
O
circuit (f=16.9344MHz)
Power supply for crystal
oscillation circuit
Not use
Sub code frame clock
O
signal output
Not used
Interpolation flag signal
O
output, Connect to TP721
Flag signal output,
O
Connect to TP722
Not use
Not use
De-emphasis detect signal
O
output, Connect to TP723
Not use
Mode select pin, Connect
I
to DVDD1 (H fix)
Test pin, Connect to
I
DVDD1 (H fix)
Power supply for analog
circuit
L-channel audio output
O
GND for analog circuit
R-channel audio output
O
RF signal polarity setting pin,
I
Connect to DVDD1 (H fix)
Oscillation frequency setting
I
pin, Connect to GND (L fix)
IOSEL=H, Test pin,
I
Connect to GND (L fix)
IOSEL=H, SMCK output,
I
Frequency select pin
IOSEL=H, SMCK output,
I
SUBQ output mode select pin
1-31
UX-L40/UX-L30
MN101C38CEK1 (IC931) : Micro controller
1. Pin layout
51 ~ 75
50
~
26
2. Pin Function
SymbolPin No. I/O Function
1~4
5~7
20, 21
8
9
10
11
12
13
14
15
16
17
18
19
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
COM3~0
VLC3~1
VDD
OSC2
OSC1
VSS
NC
NC
MMOD
VREFSAFETY0
SAFETY1
TAPE0
TAPE1
KEY0, 1
DOOR_RST
CDSAFETY
VREF+
SDATA
NC
SCK
NC
QRIN
SQCK
F_CD
/RST
MPX
BCTL
VOLCE
NC
PROTR
REM
RDSCK
BLKCK
FLAG
STAT
SMUTE
SPKMUTE
AHB
25 ~ 1
LCD Bias co mmon
LCD Bias voltage
5V
Main oscillation 12MHz
O
Main oscillation 12MHz
I
Ground
No use. Fixed to VSS.
I
No use. Open
O
Fixed to ground
I
Ground
Irregular voltage detection 0
I
Irregular voltage detection 1
I
Tape Switch 0
I
Tape Switch 1
I
Unit KEY INPUT
I
Rest/close switch detect port
I
CD safety voltage detect port
I
5V
Serial data (Tuner/ PLL IC)
I/O
No use. OUTPUT LOW
O
Serial clock (Tuner/ PLL IC)
O
No use. OUTPUT LOW
O
Q-code data input port
I
Q-code serial clock
O
CD Function ("H"= CD)
O
RESET
I/O
FM stereo detection ( 'L'= stereo)
I
During Back up set H, other case L.
O
This back up means plug out.
O
volume chip enable
O
No use. OUTPUT LOW
I
Protector detect. When detect
PROTR=L, set SPKMUTE to 'L'.
I
Remoto control input
I
RDS clock
I
Block clock input port
I
Error Correction Count Input
I
CD status input port
O
MUTE ON=L
O
Speaker mute.When detect
PROTR=L, set SPKMUTE to 'L'.
O
Active Hyper Bass On/Off
AHB OFF=H, AHB1, 2=L
76
~
100
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67~88
89~100
SymbolPin No. I/O Function
DIMCTL
LEDCTL
SURR
NC
SEG12
MDATA
MCLK
XRST
MLD
STTA
REEL
VOL+
VOL-
PERIOD
F_TU
CLOSE
OPEN
P_OUT
BUP
BTLMUTE
NC
SEG13~34
SEG0~11
LCD DIM control. DIMMER ON =L
O
Power standby LED control
O
STANDBY = L, POWER ON = H
Surround IC control, H:=Surroud on
O
No use. Open
O
SEGMENT OUTPUT
O
CD data input port
O
CD data clock
O
CD reset
O
CD command ready signal
O
Tape IC strobe
O
Reel pulse input
I
Volume plus
I
Volume minus
I
Tuner pLL strobe
O
Tuner function ('H'=Tuner)
O
Door close motor control output
O
Door open motor control output
O
Power on/off ('H'=Power ON)
O
I
Back up power detect. When detect 'H',
goto backup mode (STOP mode).
O
BTL mute control port. MUTE ON =L
During non CD play , MUTE ON.
O
No use. OUTPUT LOW
O
SEGMENT OUTPUT
O
SEGMENT OUTPUT
1-32
L4909 (IC942) : Regulator
1. Pin layout
1 2 34 56 78 9101112131415
2. Block diagram
UX-L40/UX-L30
EN1
EN2
EN3
OC
TRIG
GND
3. Pin functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
6
7
9
5
4
8
THERMAL
SHUTDOWN
ENABLE
CONTROL
CURRENT
Symbol
FB1
VO1
VINA
TRIG
OC
EN1
EN2
GND
EN3
FB3
VO3
N.C.
VINB
VO2
FB2
REFERENCE
GENERATOR
REG1
REG2
REG3
OVER
CHECK
REF
REF+20%
Function
REG1 feedback voltage input
REG1 output voltage
Input DC supply voltage
Trigger for external SCR (crowbar protection)
Over current warning output
REG1 enable input
REG2 enable input
Analog ground
REG3 enable input
REG3 feedback voltage input
REG3 output voltage
Not connected
Input DC supply voltage
REG2 output voltage
REG2 feedback voltage input
REG1
REG2
REG3
3,13
14
15
11
10
VINA
VINB
2
VO1
1
FB1
VO2
FB2
VO3
FB3
1-33
UX-L40/UX-L30
KIA78S06P-T (IC932) : Regulator
1. Pin layout 2. Block diagram
3 INPUT
Q14
Q1
R9
1 2 3
Z1
Q16
R11 R10
LB1641 (IC802) : DC motor driver
1. Pin layout
R1
Q2 Q7
Q3
Q4
2. Pin function
Q6
R3
R2
Q8
C1
R4
Q9
Q5
Q10
Q11
Q12
R8
Q13
R7R5R6
1 OUTPUT
2 COMMON
1 2 3 4 5 6 7 8 9
GND OUT1 P1
VZ IN1 IN2
VCC1
VCC2 P2
NJM4580E-W (IC652) : Ope amp.
A OUT 1
A -IN 2
A +IN 3
10
OUT2
8 V+
7 B OUT
6 B -IN
Input Output
IN1 IN2 OUT1 OUT2
0 0 0 0
1 0 1 0
0 1 0 1
1 1 0 0
Mode
Brake
CLOCKWISE
COUNTER-CLOCKWISE
Brake
1-34
V- 4
5 B +IN
GP1FA550TZ (ICJ902) : Fiber-optic transmitter unit
1.Pin layout 2.Pin function
1
Vin
2
Vcc
3
GND
321
UX-L40/UX-L30
GP1UM261XK (IC750) : Detecting unit for remote control
1.Block diagram
B.P.FLimiterAmp
Demodulator
Integrator
RL
Comp arator
GND Vcc Vout
1-35
UX-L40/UX-L30
UX-L40/UX-L30
VICTOR COMPANY OF JAPAN, LIMITED
AUDIO & COMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
1-36
(No.21105)
Printed in Japan
200207
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