JVC UXLP-5 Service manual

SERVICE MANUAL

MICRO COMPONENT SYSTEM

MB698<Rev.004>200910SERVICE MANUAL

UX-LP5B, UX-LP5E, UX-LP5EN,

UX-LP5EV, UX-LP5J, UX-LP5C,

UX-LP5A, UX-LP5US, UX-LP5UB,

UX-LP5UP, UX-LP5UT

SP-UXLP5

CA-UXLP5

SP-UXLP5

(for Europe)

COPYRIGHT © 2009 Victor Company of Japan, Limited

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14

COPYRIGHT © 2009 Victor Company of Japan, Limited

No.MB698<Rev.004>

2009/10

SPECIFICATION

UX-LP5 for Europe

Amplifier section

OUTPUT POWER 60 W (30 W + 30 W) at 6 Ω (10% THD)
Speakers/Impedance 6 Ω - 16 Ω
Audio input AUDIO IN 500 mV/47 kΩ (at “LEVEL 1”)

250 mV/47 kΩ (at “LEVEL 2”)
125 mV/47 kΩ (at “LEVEL 3”)

Digital input USB MEMORY

Tuner section

FM tuning range 87.50 MHz - 108.00 MHz

AM (MW) tuning range 522 kHz - 1 629 kHz

CD player section

Dynamic range 88 dB

Signal-to-noise ratio 85 dB

Wow and flutter Immeasurable

iPod section

iPod output power DC 5 V 500 mA

VIDEO OUT Composite

USB storage

USB specification Compatible with USB 2.0 Full Speed

Compatible device Mass storage class

Compatible file system FAT16, FAT32

Bus power supply DC 5 V 500 mA

General

Power requirements AC 230 V , 50 Hz

Power consumption 35 W (power on)

8 W (standby mode)

1 W or less (Ecology Mode)

Dimensions (approx) 165 mm × 259 mm × 258 mm (W × H × D)

Mass (approx) 1.9 kg

Speakers

Speaker units 10 cm × 1; 1.5 cm × 1
Impedance 6 Ω
Dimensions (approx.) 140 mm × 250 mm × 188 mm (W × H × D)

Mass (approx.) 1.4 kg each

Specifications and appearance are subject to change without prior notice.

1-2 (No.MB698<Rev.004>)

UX-LP5J/C

Amplifier section

OUTPUT POWER 35 W per channel, min. RMS, driven into 4 Ω at 1 kHz with no more than 10%

total harmonic distortion

Speakers/Impedance 6 Ω - 16 Ω
Audio input AUDIO IN 500 mV/47 kΩ (at “LEVEL 1”)

250 mV/47 kΩ (at “LEVEL 2”)
125 mV/47 kΩ (at “LEVEL 3”)

Tuner section

FM tuning range 87.5 MHz - 108.0 MHz

AM tuning range 530 kHz - 1 710 kHz

CD player section

Dynamic range 88 dB

Signal-to-noise ratio 85 dB

Wow and flutter Immeasurable

iPod section

iPod output power DC 5 V 500 mA

VIDEO OUT Composite

General

Power requirements AC 120 V , 60 Hz

Power consumption 35 W (power on)

8 W (standby mode)

1 W or less (Ecology Mode)

Dimensions (approx.) 165 mm × 259 mm × 258 mm

(6-1/2 inches × 10-1/4 inches × 10-3/16 inches) (W × H × D)

Mass (approx.) 1.9 kg (4.2 lbs)

Speakers

Speaker units 10 cm (3-15/16 inches) × 1; 1.5 cm (5/8 inch) × 1
Impedance 6 Ω
Dimensions (approx.) 140 mm × 250 mm × 188 mm

(5-9/16 inches × 9-7/8 inches × 7-7/16 inches) (W × H × D)

Mass (approx.) 1.4 kg (3.1 lbs) each

Specifications and appearance are subject to change without prior notice.

(No.MB698<Rev.004>)1-3

UX-LP5 for Asia, Australia

Amplifier section

OUTPUT POWER 60 W (30 W + 30 W) at 6 Ω (10% THD)
Speakers/Impedance 6 Ω - 16 Ω
Audio input AUDIO IN 500 mV/47 kΩ (at “LEVEL 1”)

250 mV/47 kΩ (at “LEVEL 2”)
125 mV/47 kΩ (at “LEVEL 3”)

Digital input USB MEMORY

Tuner section

FM tuning range 87.50 MHz - 108.00 MHz

AM tuning range 531 kHz - 1 710 kHz (in 9 kHz spacing)

530 kHz - 1 710 kHz (in 10 kHz spacing)

CD player section

Dynamic range 88 dB

Signal-to-noise ratio 85 dB

Wow and flutter Immeasurable

iPod section

iPod output power DC 5 V 500 mA

VIDEO OUT Composite

USB storage

USB specification Compatible with USB 2.0 Full Speed

Compatible device Mass storage class

Compatible file system FAT16, FAT32

Bus power supply DC 5 V 500 mA

General

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

50 Hz/60 Hz

AC 240 V , 50 Hz (only Australia)

AC 220 V , 50 Hz (only Hong Kong)

Power consumption 35 W (power on)

8 W (standby mode)

1 W or less (Ecology Mode)

Dimensions (approx) 165 mm × 259 mm × 258 mm (W × H × D)

Mass (approx) 1.9 kg

Speakers

Speaker units 10 cm × 1; 1.5 cm × 1
Impedance 6 Ω
Dimensions (approx.) 140 mm × 250 mm × 188 mm (W × H × D)

Mass (approx.) 1.4 kg each

Specifications and appearance are subject to change without prior notice.

1-4 (No.MB698<Rev.004>)

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.

(No.MB698<Rev.004>)1-5

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 connecto 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.

1-6 (No.MB698<Rev.004>)

Solder short part

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

CAUTION:

DANGER:

INVISIBLE LASER RADIATION WHEN OPEN
DO NOT STARE INTO BEAM

INVISIBLE LASER RADIATION WHEN OPEN
AVOID DIRECT EXPOSER TO THE BEAM

(No.MB698<Rev.004>)1-7

1.9 Importance administering point on the safety

R27

R26

U6

D17

R28

V7

R29

V5

V3

V4

R22

R15

CN5

FL+

CN2

-25V

ECO

FL+

5VE

GND

12V
GND
GND

5VD

5VD

L4

R23

JP7

C14

L3

C21

R25

C26
D18

R16

HS1

D9

C11

C25

R10

CN1

5V

GND

JP8

GND3

D10

D19

C27

GND2

C16

D12

CN4

C13

L6

D13

PVCCPVCC

CN3

L7

R13

R30

R31

L5

F2

C31

C15

5V

GND

D16D11

C12

R18

U3

R20

R21

PGND PGND

JP9

D14

R11

R19

C20

GND

R14

F1

V2

C18

C19

C17

T1

R12

HS2

C22

U2

D8

R9

C3

R2R1C6

V1

D6

JP5

R7

R24

C28

C24

GND

C4

C2

D2

D1

R3

C7

R6

R5

C8

R8

L2

R4

T2.5AH250V

C1

R32

L1

D3

D4

JP3

JP4

C5

SW1

JP1

JP2

C23

D5

JP6

C10

C9

Full Fuse Replacement Marking

Graphic symbol mark
(This symbol means slow blow type fuse.)

should be read as follows ;

FUSE CAUTION

FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE
AND RATING OF FUSES ;

F901 : T1.6AH 250V F901 : T1.6AH 250V

slow blow type / type a fusion lent

Marquage Pour Le Remplacement
Complet De Fusible

Le symbole graphique (Ce symbole signifie

fusible de type a fusion lent.)

^

doit etre interprete comme suit ;

PRECAUTIONS SUR LES FUSIBLES

POUR UNE PROTECTION CONTINUE CONTRE
DES RISQUES D'INCENDIE, REMPLACER
SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;

1-8 (No.MB698<Rev.004>)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MB698<Rev.004>)1-9

SECTION 3

DISASSEMBLY

3.1 Main body (Used figure are UX-LP5E)

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

(1) Remove the six screws A attaching the both side of the Top

cabinet. (See Fig.1)

A

A

3.1.2 Removing the SMPS board (See Fig.3)

(1) Remove the four screws C attaching the SMPS board.
(2) Disconnect the connector wires from MCU board connect-

ed to connectors CN2

CN2

and CN3 of the SMPS board.

CN3

C

C

Fig.1

(2) Remove the five screws B attaching the Top cabinet. (See

Fig.2)

B

B

Fig.3

1-10 (No.MB698<Rev.004>)

Fig.2

3.1.3 Removing the MCU board (See Fig.4)

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

connector CN201

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

connector CN202

(3) Disconnect the connector wire from USB board connected

to connector CN210 of the MCU board.

(4) Disconnect the connector wire from CD board connected to

connector CN208

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

connector CN206

(6) Disconnect the card wire from CD board connected to con-

nector CN207 of the MCU board.

(7) Remove the five screws D attaching the MCU board.

of the MCU board.

of the MCU board.

of the MCU board.

of the MCU board.

CN202

CN208

CN210

CN201

D

(2) Remove the two screws E attaching the Front cabinet.

(See Fig.6)

E

Fig.6

(3) Disengage two hooks a engaged both side of the Front

cabinet. (See Fig.7)

D

CN207

3.1.4 Removing the Front cabinet (See Fig.5 to 7)

(1) Disconnect the connector wire from USB board connected

to connector CN114

CN114

of the CD board. (See Fig.5)

CN206

Fig.4

Fig.5

hook

a

Fig.7

3.1.5 Removing the CD mechanism (See Fig.8 to 10)

(1) Disconnect the card wire from CD mechanism connected

to connector CN102

(2) Disconnect the connector wire from CD board connected to

connector of the Loader board. (See Fig.9)

(3) Disconnect the connector wire from CD board connected to

connector of Mechanism board. (See Fig.9)

of the CD board. (See Fig.8)

CN102

Fig.8

Loader board Mechanism board

Fig.9

(No.MB698<Rev.004>)1-11