JVC UXF-2 Service manual

SERVICE MANUAL

MICRO COMPONENT SYSTEM

MB736<Rev.003>20106SERVICE MANUAL

UX-F2BE, UX-F2BEN, UX-F2BEV,

UX-F2BUS, UX-F2BUW

2

SP-UXF2B

CA-UXF2B

SP-UXF2B

only for Europe

COPYRIGHT © 2010 Victor Company of Japan, LimitedLead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

COPYRIGHT © 2010 Victor Company of Japan, Limited

No.MB736<Rev.003>

2010/6

SPECIFICATION

For Europe(Main unit CA-UXF2B)

General

Power source AC 230 V , 50 Hz

Power consumption (at operation) 40 W

Power consumption (on standby) 1.00 W or less

Dimensions (approx.) (W x H x D) (including projecting parts) 236 mm × 123 mm × 285 mm

Mass (approx.) 2.0 kg

Amplifier

Output Power 100 W (50 W + 50 W) at 6 Ω (10% THD)

Audio Input AUDIO IN: Stereo mini (

Speaker impedance 6 Ω - 16 Ω

Tuner

FM frequency 87.50 MHz - 108.00 MHz

USB

USB specification Compatible with USB 2.0 Full Speed

Compatible device Mass storage class

Compatible system FAT16, FAT32

Output power DC 5 V 500 mA

SD

Compatible device SD, SDHC

Compatible system FAT16, FAT32

Speaker SP-UXF2B

Speaker type Bass-reflex type

Tweeter 4 cm

Woofer 12 cm

Impedance 6 Ω
Dimensions (approx.) (W x H x D) (including projecting parts) 141 mm × 250 mm × 181 mm

Mass (approx.) 1.8 kg each

Ø 3.5 mm)

Design and specifications are subject to change without notice.

1-2 (No.MB736<Rev.003>)

SPECIFICATION

For Asia(Main unit CA-UXF2B)

General

Power source AC 110 - 127 V/AC 220 - 240 V (adjustable with the voltage selector),

50 Hz/60 Hz

Power consumption (at operation) 40 W

Power consumption (on standby) 1.00 W or less

Dimensions (approx.) (W x H x D) (including projecting parts) 236 mm × 123 mm × 285 mm

Mass (approx.) 2.0 kg

Amplifier

Output Power 100 W (50 W + 50 W) at 6 Ω (10% THD)

Audio Input AUDIO IN: Stereo mini (

Speaker impedance 6 Ω - 16 Ω

Tuner

FM frequency 87.50 MHz - 108.00 MHz

AM frequency 531 kHz - 1 710 kHz (at 9 kHz intervals)

530 kHz - 1 710 kHz (at 10 kHz intervals)

USB

USB specification Compatible with USB 2.0 Full Speed

Compatible device Mass storage class

Compatible system FAT16, FAT32

Output power DC 5 V 500 mA

SD

Compatible device SD, SDHC

Compatible system FAT16, FAT32

Speaker SP-UXF2B

Speaker type Bass-reflex type

Tweeter 4 cm

Woofer 12 cm

Impedance 6 Ω
Dimensions (approx.) (W x H x D) (including projecting parts) 141 mm × 250 mm × 181 mm

Mass (approx.) 1.8 kg each

Ø 3.5 mm)

Design and specifications are subject to change without notice.

(No.MB736<Rev.003>)1-3

SECTION 1

PRECAUTION

1.1 Safety Precautions

(1) This design of this product contains special hardware and

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

(2) Alterations of the design or circuitry of the product should

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

(3) Many electrical and mechanical parts in the products have

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

(4) The leads in the products are routed and dressed with ties,

clamps, tubings, barriers and the like to be separated from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after reassem­bling.

(5) Leakage shock hazard testing

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

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

• Alternate check method
Plug the AC line cord directly into the AC outlet. Use an

AC voltmeter having, 1,000Ω per volt or more sensitivity
in the following manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-

posed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC

voltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Voltage measured any must
not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).

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

0.15 F AC TYPE

Place this
probe on

1500 10W

Good earth ground

1.2 Warning

(1) This equipment has been designed and manufactured to

meet international safety standards.

(2) It is the legal responsibility of the repairer to ensure that

these safety standards are maintained.

(3) Repairs must be made in accordance with the relevant

safety standards.

(4) It is essential that safety critical components are replaced

by approved parts.

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

voltage.

1.3 Caution

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

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB diagrams, the parts that are
printed over with black such as the resistor ( ), diode ( )
and ICP ( ) or identified by the " " mark nearby are critical
for safety. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)

each exposed
metal part.

1-4 (No.MB736<Rev.003>)

1.5 Preventing static electricity

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

1.5.1 Grounding to prevent damage by static electricity

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

(1) Ground the workbench

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

(2) Ground yourself

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

(caption)
Anti-static wrist strap

1M

Conductive material
(conductive sheet) or iron palate

(3) Handling the optical pickup

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

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

1.6 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) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.7 Attention when traverse unit is decomposed

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

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

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

solder short part

(No.MB736<Rev.003>)1-5

1.8 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.

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 here in may result in
hazardous radiation exposure.

!

Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

REPRODUCTION AND POSITION OF LABELS and PRINT

WARNING LABEL and PRINT

1-6 (No.MB736<Rev.003>)

SECTION 2

A

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

SECTION 3

DISASSEMBLY

3.1 Main body (Used model: UX-F2E)

3.1.1 Removing the Top cover (See Fig.1, 2, 3)

(1) Remove the four screws A attaching the Top cover. (See

Fig.1)

A

Fig.1

(2) Remove the two screws B and two screws C attaching both

side of the Top cover. (See Fig.2)

3.1.2 Removing the Main board (See Fig.4)

(1) Disconnect the connector wire from Jack board connected

to connector CN606

(2) Disconnect the connector wire from FAN connected to con-

nector CN612 of the Main board.

(3) Disconnect the card wire from Upgrade board connected to

connector CN605

(4) Disconnect the connector wire from SMPS board connect-

ed to connector CN603

(5) Disconnect the card wire from MPEG board connected to

connector CN609 of the Main board.

(6) Disconnect the connector wire from MPEG board connect-

ed to connector CN607 of the Main board.

(7) Disconnect the connector wire from SMPS board connect-

ed to connector CN601

(8) Disconnect the card wire from Display board connected to

connector CN602 of the Main board.

(9) Disconnect the card wire from Tuner pack connected to

connector CN604 of the Main board.

(10) Remove the five screws F attaching the Main board.

F

CN606

of the Main board.

of the Main board.

of the Main board.

of the Main board.

CN605CN604

B

C

Fig.2

(3) Remove the three screws D and three screws E attaching

the Top cover. (See Fig.3)

D

E

Fig.3

F

F

F

CN602

CN601

CN607

CN609

F

CN612 CN603

Fig.4

(No.MB736<Rev.003>)1-7

3.1.3 Removing the SMPS board (See Fig.5, 6)

(1) Disconnect the connector wire from Display board connect-

ed to connector CN902

of the SMPS board. (See Fig.5)

CN902

(2) Remove the two screws M and two screws N attaching the

CD mechanism. (See Fig.8)

Fig.5

(2) Remove the two screws G, one screw H and one screw J

attaching the SMPS board. (See Fig.6)

G

HJ

Fig.6

3.1.4 Removing the CD mechanism (See Fig.7, 8, 9, 10, 11)

(1) Remove the one screw K and one screw L attaching the

Rear cabinet bracket. (See Fig.7)

L

M

N

Fig.8

(3) Disconnect the connector wire from MPEG board connect-

ed to connector of Loader board. (See Fig.9)

Loader boardconnector

Fig.9

(4) Solder the short part of the Pickup board. (See fig.10)

M

N

K

Fig.7

solder short part

Fig.10

(5) Disconnect the card wire from CD mechanism connected

to connector CN102

of the MPEG board. (See Fig.11)

CN102

1-8 (No.MB736<Rev.003>)

Fig.11

3.1.5 Removing the MPEG board (See Fig.12)

(1) Disconnect the card wire from USB board connected to

connector CN108

(2) Remove the four screws P attaching the MPEG board.

of the MPEG board.

3.1.7 Removing the Jack board (See Fig.15)

(1) Remove the two screws Q attaching the Jack board.

Q

CN108

P

P

Fig.12

3.1.6 Removing the Front panel (See Fig.13, 14)
(1) Disengage one hook a engaged Front panel. (See Fig.13)

hook

a

Fig.13

(2) Disengage two hooks b engaged both side of the Front

panel. (See Fig.14)

P

Fig.15

3.1.8 Removing the USB board (See Fig.16)

(1) Disconnect the connector wire from Display board connect-

ed to connector CN203

(2) Remove the two screws R attaching the USB board.

CN203

of the USB board.

R

Fig.16

3.1.9 Removing the Display board (See Fig.17)

(1) Remove the twelve screws S attaching the Display board.

hook

b

Fig.14

S

S

S

S

Fig.17

(No.MB736<Rev.003>)1-9

SECTION 4

ADJUSTMENT

This service manual does not describe ADJUSTMENT.

SECTION 5

TROUBLESHOOTING

This service manual does not describe TROUBLESHOOTING.

1-10 (No.MB736<Rev.003>)

(No.MB736<Rev.003>)1-11

Victor Company of Japan, Limited

Home Entertainment Business Division Personal AV Operation 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.MB736<Rev.003>)

Printed in Japan

VSE

REVISION INFORMATION

MICRO COMPONENT SYSTEM

UX-F2BE, UX-F2BEN, UX-F2BEV

■ OVERVIEW

Add UX-F2BEV.

■ DETAILS

COVER SECTION

Title Line No.MB736<Rev.001> No.MB736<Rev.002> Description

Revision Rev.001 Rev.002

Model No. UX-F2BE, UX-F2BEN UX-F2BE, UX-F2BEN, UX-F2BEV

SECTION 1 PRECAUTION

Title Line No.MB736<Rev.001> No.MB736<Rev.002> Description

1.1 Safety
Precautions

3 3. Many electrical and mechanical parts

in the products have special safety­related 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.

3. Many electrical and mechanical parts
in the products have special safety­related 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

( ILLUSTRATION(kigo001.png) ) 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.

COPYRIGHT © 2010 Victor Company of Japan, Limited

MB736-R002

2010/04

PARTS LIST

MODEL No. LIST

Model No. No.MB736<Rev.002>

UX-F2BE 01
UX-F2BEN 02
UX-F2BEV 03

General assembly [M1MM]

Symbol or

!

M1MM 76 ------------ CD7111091800300 RATING LABEL (Addition) 1 03

<Rev.001> <Rev.002>

Packing and accessories [M3MM]

Symbol or

!

M3MM A1 ------------ CD7202091801200 INST BOOK (Addition) 1 03
M3MM A2 ------------ CD7202091801300 INST BOOK (Addition) 1 03
M3MM A3 ------------ CD7202091801400 INST BOOK (Addition) 1 03
M3MM A4 ------------ CD7202091801500 INST BOOK (Addition) 1 03
M3MM A6 ------------ CD7201091900300 SAFETY SHEET (Addition) 1 03

<Rev.001> <Rev.002>

Electrical parts list Main board [01]

Symbol or

!

01 U601 1506780515000-H 1506780527010-B IC 1 01,02,03

<Rev.001> <Rev.002>

Part No.

Part No.

Part No.

Part Name Description Qty Models

Part Name Description Qty Models

Part Name Description Qty Models

2 (MB736-R002)

(MB736-R002) 3

Victor Company of Japan, Limited

Home Entertainment Business Division Personal AV Operation 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(MB736-R002)

Printed in Japan

No.MB736<Rev.001> VSE