JVC UX-G60B User manual

SERVICE MANUAL
COPYRIGHT © 2006 Victor Company of Japan, Limited No.MB518
2006/4
MICRO COMPONENT SYSTEM
MB51820064
UX-G60B,UX-G60E,UX-G60EN,
UX-G60EV,UX-G60EE
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
SUPER VIDEO

1-2 (No.MB518)
SPECIFICATION
•Design and specifications are subject to change without notice.
• Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic", "MLP lossless", and the double-D symbol are trademarks of Dolby
Laboratories.
• "DTS" and "DTS 2.0+ Digital Out" are trademarks of Digital Theater Systems, Inc.
• "Official DivX® Ultra Certified product" "Plays all versions of DivX® video (including DivX® 6) with enhanced playback of DivX® media files and
the DivX® Media Format" "DivX, DivX Ultra Certified, and associated logos are trademarks of DivX, Inc. and are used under licence."
• USE OF THIS PRODUCT IN ANY MANNER THAT COMPLIES WITH THE MPEG-4 VISUAL STANDARD IS PROHIBITED, EXCEPT FOR USE
BY A CONSUMER ENGAGING IN PERSONAL AND NON-COMMERCIAL ACTIVITIES.
• This product incorporates copyright protection technology that is protected by U.S. patents and other intellectual property rights. Use of this copy-
right protection technology must be authorized by Macrovision, and is intended for home and other limited viewing uses only unless otherwise
authorized by Macrovision. Reverse engineering or disassembly is prohibited.
•"CONSUMERS SHOULD NOTE THAT NOT ALL HIGH DEFINITION TELEVISION SETS ARE FULLY COMPATIBLE WITH THIS PRODUCT
AND MAY CAUSE ARTIFACTS TO BE DISPLAYED IN THE PICTURE. IN CASE OF 525 OR 625 PROGRESSIVE SCAN PICTURE PROB-
LEMS, IT IS RECOMMENDED THAT THE USER SWITCH THE CONNECTION TO THE "STANDARD DEFINITION" OUTPUT. IF THERE ARE
QUESTIONS REGARDING OUR TV SET COMPATIBILITY WITH THIS MODEL 525p AND 625p DVD PLAYER, PLEASE CONTACT OUR CUS-
TOMER SERVICE CENTER."
Amplifier
CA-UXG60
Output Power 120 W (60 W + 60 W) at 6Ω(10% THD)
Audio Input AUX 500 mV/50 kΩ(at "AUX LVL1")
250 mV/50 kΩ(at "AUX LVL2")
125 mV/50 kΩ(at "AUX LVL3")
Digital output DVD OPTICAL DIGITAL OUT : -21 dBm to -15 dBm (660 nm ±30 nm)
Digital input USB MEMORY
Video Out Color system PAL (interlaced/progressive)
Composite video 1 V(p-p)/75Ω
S-VIDEO Y (luminance) : 1 V(p-p)/75Ω
C (chrominance, burst) : 0.3 V(p-p)/75Ω
RGB 0.7 V(p-p)/75Ω
COMPONENT (Y) : 1 V(p-p)/75Ω
(PB/PR) : 0.7 V(p-p)/75Ω
Speaker impedance 6Ω- 16Ω
Tuner FM tuning range 87.50 MHz - 108.00 MHz
AM (MW) tuning range 522 kHz - 1 629 kHz
Disc/file player Playable disc DVD Video/DVD Audio/CD/VCD/SVCD/CD-R/CD-RW
(CD/SVCD/VCD/MP3/WMA/JPEG/MPEG-1/MPEG-2/ASF/DivXformat)
DVD-R/-RW
(DVD-VR/DVD Video/MP3/WMA/JPEG/MPEG-1/MPEG-2/ASF/DivX format)
+R/+RW (DVD-Video format)
DVD-ROM (DVD Video/DivX format)
Playable file MP3/WMA/JPEG/MPEG-1/MPEG-2/ASF/DivX format
Dynamic range 80 dB
Horizontal resolution 500 lines
Wow and flutter Immeasurable
General Power requirement AC 230 V , 50 Hz
Power consumption 125 W (at operation)
13 W (at standby)
1 W (at standby dimmer OFF mode)
Dimensions (approx.) 170 mm ×250 mm ×342 mm (W/H/D)
Mass (approx.) 5 kg
Speakers
SP-UXG60
Speaker units Tweeter 4 cm cone ×1
Woofer 12 cm cone ×1
Impedance 6Ω
Dimensions (approx.) 145 mm ×250 mm ×195 mm (W/H/D)
Mass (approx.) 2.2 kg each

(No.MB518)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 purpos-
es. 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 per-
formed 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 characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice 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 charac-
teristics 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 reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna 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, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent 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, 1,000Ωper volt or more sensitivity
in the following manner. Connect a 1,500Ω10W 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.).
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 pre-
forming 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)
Good earth ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE

1-4 (No.MB518)
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.
(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 flexible wire is disconnected from the connecto on the servo board. (If the flexible
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 flexible wire.
1M
Conductive material
(conductive sheet) or iron palate
(caption)
Anti-static wrist strap
Solder short land section

(No.MB518)1-5
1.8 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 CD,MD and DVD player uses 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.
REPRODUCTION AND POSITION OF LABELS
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL
CAUTION : VISIBLE AND / OR INVISIBLE CLASS 1M
LASER RADIATION WHEN OPEN.
DO NOT STARE INTO BEAM OR VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS.
VARNING : SYNLIG OCH / ELLR OSYNLIG LASERSTRALING,
KLASS 1M, NAR DENNA DEL AR OPPNAD.
STIRRA EJ IN I STRALEN OCH BETRAKTA
EJ STRALEN MED OPTISKA INSTRUMENT.
ADVARSEL : SYNLIC OG / ELLER USYNLIG KLASSE
1M-LASERSTRALING VED ABNING.
SE IKKE IND I STRALEN-HELLER IKKE
MED OPTISKE INSTRUMENTER.
AVISO : RADIACION LASER DE CLASE 1M VISIBLE Y/O
INVISIBLE CUANDO ESTA ABIERTO.
NO MIRAR FIJAMENTE EL HAZ NI OBSERVAR
DIRECTAMENTE CON INSTRUMENTAL OPTICO.
ATTENTION : RAYONNEMENT LASER VISIBLE ET / OU INVISIBLE
DE CLASSE 1M UNE FOIS OUVERT.
NE PAS FIXER LE FAISCEAU NI REGARDER
DIRECTEMENT AVEC DES INSTRUMENTS OPTIQUES.
VARO! : AVAT TAESSA OLET ALT TIINA NAKYVALLE JA / TAI
NAKYMAT TOMALLE LUOKAN 1M LASERSATEILYLLE.
ALA KATSO SUORAAN SATEESEEN TAI TARKASTELE
SITA OPTISEN LAIT TEEN LAPI.

1-6 (No.MB518)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MB518)1-7
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the metal cover (See Fig.1, 2)
(1) Remove the two screws Aattaching the rear cover. (See
Fig.1)
(2) Remove the five screws Battaching the metal cover. (See
Fig.1)
(3) Remove the two screws Cattaching the metal cover. (See
Fig.2)
Fig.1
Fig.2
AB
B
B
B
B
A
C

1-8 (No.MB518)
3.1.2 Removing the front panel assembly (See Fig.3, 4)
(1) Remove the two screws Dattaching the front panel assem-
bly. (See Fig.3)
(2) Disconnect the card wire of the FL board from the connec-
tor CN205 of the main board. (See Fig.4)
Fig.3
Fig.4
D
CN205

(No.MB518)1-9
3.1.3 Removing the tuner pack (See Fig. 5, 6)
(1) Disconnect the card wire of the tuner pack from connector
CN11 of the main board. (See Fig.5)
(2) Remove the two screws Eattaching the tuner pack. (See
Fig.6)
3.1.4 Removing the fan (See Fig.6, 7)
(1) Disconnect the connector wire of the fan from connector
CN602 of the power amp board. (See Fig. 7)
(2) Remove the two screws Fattaching the fan. (See Fig.6)
Fig.5
Fig.6
Fig.7
CN11
E
FF
E
H
LL
L
H
Q
CN602

1-10 (No.MB518)
3.1.5 Removing the power amplifier board (See Fig.6, 8)
(1) Disconnect the card wires from connector CN217, CN219,
CN220, CN722 CN810 and CN811 of the power amplifier
board. (See Fig.8)
(2) Disconnect the connector wire from connector CN601 of
the power amplifier board. (See Fig.8)
(3) Disconnect the card wire from connector CN203 of the
main board. (See Fig.8)
(4) Remove the two screws Gattaching the power IC. (See
Fig.8)
(5) Remove the one screw Hand one screw Jattaching the
power amplifier board. (See Fig.8)
(6) Remove the three screws Kattaching the power amplifier
board. (See Fig.6)
Fig.8
3.1.6 Removing the main board (See Fig.6, 9)
(1) Remove the four screws Lattaching the main board. (See
Fig.6)
(2) Disconnect the connector wire from connector CN202 of
the main board. (See Fig.9)
(3) Disconnect the card wires from connector CN201, CN206,
CN21, CN711 and CN831 of the main board. (See Fig.9)
(4) Remove the two screws Mattaching the main board. (See
Fig.9)
Fig.9
CN217
CN219
CN220
CN722
CN810
CN811
CN601
CN203
GG
HJ
M
M
CN201
CN202
CN831 CN711
CN206
CN21

(No.MB518)1-11
3.1.7 Removing the DVD mechanism assembly (See Fig.10, 11)
(1) Remove the two screws Nattaching the mecha holder B.
(See Fig.10)
(2) Remove the one screw Pattaching the DVD mechanism
assembly. (See Fig.10)
Reference:
DVD mechanism assembly can remove without remove
the mecha holder B, please remove mechanism holder
Bif necessary.
(3) Disconnect the connector wire of the jack board from con-
nector CN811 of the DVD module board. (See Fig.11)
Fig.10
Fig.11
3.1.8 Removing the power supply board (see Fig.6, 12)
(1) Remove the one screw Qattaching the power supply
board. (See Fig.6)
(2) Remove the one screw Rattaching the power supply
board. (See Fig.12)
Fig.12
P
NN
Mecha holder B
CN811
R

1-12 (No.MB518)
3.1.9 Removing the FL board (See Fig. 13)
(1) Remove the five screws Sattaching the FL board.
3.1.10 Removing the switch board (See Fig.13)
(1) Take out the volume knob.
(2) Remove the four screws Tattaching the switch board.
(3) Disengage the six hooks athen remove the switch board.
Fig.13
SS
S
T
S
S
T
a
a
aa
a
a
TT

(No.MB518)1-13
3.2 DVD mechanism
3.2.1 Removing the traverse mechanism
(See Fig.1 to 6)
(1) Remove the two screws Aattaching the tramecha holder
from top side of DVD mechanism assembly. (See Fig.1)
(2) Remove the two screws Battaching the DVD module
board. (See Fig.2)
(3) Remove the four screws Cattaching the CB holder and
take out it. (See Fig.3)
(4) Remove the four screws Dattaching the traverse mecha-
nism. (See Fig.4)
(5) Solder the solder part of DVD pick up. (See Fig.5)
(6) Disconnect the card wire from CN101 and CN201 on the
DVD module board. (See Fig. 6)
Caution:
• Solder the short land section on the DVD pickup before dis-
connecting the card wire from the connector on the DVD
pickup. If the card wire is disconnected without attaching sol-
ders, the pickup may be destroyed by static electricity.
• When attaching the DVD pickup, be sure to remove solders
from the short land section after connecting the card wire to
the connector on the DVD pickup.
Fig.1
Fig.2
A
A
Clamper base
DVD mechanism assembly
B
B
DVD module board
DVD mechanism assembly

1-14 (No.MB518)
Fig.3
Fig.4
Fig.5
Fig.6
CC
C
C
DVD module board
DD
Traverse mechanism assembly
DVD mechanism assembly
Solder short land section
CN101
CN201
DVD module board

(No.MB518)1-15
3.2.2 Removing the pickup assembly
(See Fig.7 to 11)
(1) Remove the two rod springs pressing the guide shaft. (See
Fig.7)
(2) Remove the screw Eand Fattaching the spring holder.
(See Fig.8)
(3) Remove the read screw from traverse mechanism assem-
bly. (See Fig.9)
Caution:
When remove the lead screw, do not loss the middle
gear. (See Fig.10 and 11)
(4) Remove the bar spring pressing the shaft. (See Fig.10)
(5) Take out the pickup assembly from traverse mechanism
chassis by order. (See Fig.11)
Fig.7
Fig.8
Fig.9
Fig.10
Fig.11
ROD SPRING ROD SPRING
EF
Spring holder
Lead screw
Middle gear
(T.TABLE)
HOOK
(SHAFT)
(BAR SPRING)
order 1
order 2
order 3

1-16 (No.MB518)
3.2.3 Removing the feed motor assembly
(See Fig.12)
(1) Remove the one screw Gattaching the feed motor assem-
bly.
(2) Remove the feed motor wires from solder part of spindle
motor board.
Fig.12
3.2.4 Removing the spindle motor assembly
(See Fig.13)
(1) Remove the two screws Hattaching the spindle motor from
spindle motor board.
Fig.13
Lead screw
Middle gear
Splder part
G
Spindle motor
H

(No.MB518)1-17
3.2.5 Removing the tray assembly
(See Fig.14 & 15)
(1) Remove the two screws Jattaching the clamper base.
(See Fig.14)
(2) Remove the one screw Kattaching the shaft guide from
bottom side. (See Fig.14)
(3) Remove the two screws Lattaching the shaft guide from
top side. (See Fig.15)
Caution:
When attach the tray assembly, boss of loading sub assembly
should attach to guide of bottom side at tray assembly. (See
Fig.15)
Fig.14
Fig.15
J
order 1
order 2
clamper base
K
[bottom side]
L

1-18 (No.MB518)
SECTION 4
ADJUSTMENT
4.1 ATTENTION IN SERVICE OF DVD SECTION
(1) When pickup, flash rom, DVD module board were changed, initialize EEPROM all means.
(2) When full initialization was executed, execute learning with a DVD test disc by all means.
Test disc : VT-501, VT-502
Learning method : It is adjusted automatically by normal playback of a DVD disc.
4.2 DVD test mode
4.2.1 To enter DVD test mode
4.2.2 To exit DVD test mode
(1) During test mode (except for device key write & DVD region rewrite), press POWER key.
(2) To exit test mode for device key write & DVD region rewrite, first AC OFF, then AC ON again to return to normal state.
4.2.3 DVD module EEPROM initialization
(1) AC power OFF.
(2) Press and hold DVD/CD + keys on the front panel. Then AC power ON while holding three keys.
(3) DVD mechanism will start in TEST MODE. The following will be display on the set.
xx = Destination information as follows; JC / 1U / D / E / 2U / 3U / UB / UT / 4U / UY / EE / UF
y = region number
v = study state information from mechanism micon
w = initialization state from mechanism micon
Tx wvyx
v status 0 1 2 3
DVD Learned
CD Learned
Y
Y
N
Y
Y
N
N
N
w status 0 3 BLANK
DVD Learned Normal Full Not initialize
No. STEP NORMAL INITIALIZE
1
2
Press key on front panel
w = 0 (Normal initialize)
During DVD test mode
System display w status

(No.MB518)1-19
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.

(No.MB518)
Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
Victor Company of Japan, Limited
VPT
Printed in Japan