JVC XV-S500BK User manual

SERVICE MANUAL
DVD VIDEO PLAYER
No.A0027
Feb. 2002
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
XV-S500BK / XV-S502SL
XV-S500BK / XV-S502SL
Area Suffix
J ------------- U.S.A.
C ---------- Canada
This service manual is printed on 100% recycled paper.
Model
XV-S500BK
XV-S502SL
Body color
Black
Silver
Each difference point
Contents
Safety precautions ------------------------- 1-2
Preventing static electricity -------------- 1-3
Importance admistering
point on the safety --------- 1-4
Precautions for service ------------------- 1-5
Disassembly method ---------------------- 1-6
Adjustment method ------------------------ 1-15
Attention when pick-up is exchanged -- 1-19
Confirm method of operation ------------- 1-20
Troubleshooting ---------------------------- 1-21
Description of major ICs ------------------ 1-25
Glossary of term and abbreviations ---- 1-46
STANDBY
STANDBY/ON
PROGRESSIVE
PAUSEPLAYSTOP 387
OPEN/CLOSE
0SKIP
4
4
DVD/SUPER VCD/VCD/CD PLAYER
TV2
2
TV1
1
TV3
3
TV5
5
TV4
4
TV6
6
TV8
8
TV7
7
TV9
9
TV0
0
TV-/--
10
MUTING
+10
TV/VIDEO
CANCEL
TITLE/
GROUP
SUBTITLERETURN
VFPAUDIOSUBTITLEREPEAT
ANGLE
DIGEST
3D
PHONIC
ZOOM
AMP VOL
PROGRESSSIVE
SCAN
RM-SXV008J
REMOTE CONTROL
OPEN/
CLOSE
TV DVD
NEXTPREVIOUS
SELECT STROBECLEAR
SLOW
-
SLOW+
VOL
-
VOL+
CH
+
CH
-
T
O
P
M
E
N
U
M
E
N
U
O
N
S
C
R
E
E
N
C
H
O
I
C
E
ENTER
STANDBY/ON
TV DVD

XV-S500BK/XV-S502SL
1-2
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 current check (Electrical 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, 1,000 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 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. 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.
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
!
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.
When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(Except the J and C version)

XV-S500BK/XV-S502SL
1-3
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.
1.1. Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.
Be careful to use proper grounding in the area where repairs are being performed.
1.1.1. Ground the workbench
1. 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.
1.1.2. Ground yourself
1. Use an anti-static wrist strap to release any static electricity built up in your body.
1.1.3. 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.
1.2. 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
Conductive material
(conductive sheet) or iron plate
(caption)
Anti-static wrist strap

XV-S500BK/XV-S502SL
1-4
Full Fuse Replacement Marking
Graphic symbol mark
(This symbol means fast 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 : 1.6 A / 125 V F901 : 1.6 A / 125 V
Marquage Pour Le Remplacement
Complet De Fusible
PRECAUTIONS SUR LES FUSIBLES
POUR UNE PROTECTION CONTINUE CONTRE
DES RISQUES D'INCENDIE, REMPLACER
SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;
Le symbole graphique (Ce symbole signifie
fusible de type a fusion rapide.)
doit etre interprete comme suit ;
Importance Admistering point on the Safety
Q953
D971
B4
B3
R992
EP902
B516
B13
R981
C1
C2
C5
C971
C707
C711
C714
C716
C717
C730
C731
C737
C738
C740 C741
C742
C743
C744
C745
C746
C747
C750 C751
C752
C753
C754
C755
C756
C757
C761
C762
C771
C772
C801
B399
C806
IC1100
C808
C1100
C810
C812
C813
C814
C815
C1101
C817
C818
B52
C902
C903
C905
C906
C907
C908
C909
B433
C913
C914
B157
C960
C962
C963
C965
C966
C969
C985
C978
C979
C982
C984
C987
C989
B711
C997
C1701
C1702
CN701
CN801
CP951
B319
B320
B216
B75
L1701
D901
D902
D903
D904
D908
B44
B78
C991
D951
D952
D954
D956
D957
D960
D991
DI1
EP711
EP951
FC901
FC902
C992
B89
D998
IC901
J700
J701
J702
J703
J801
J802
J804
CN802
HS952
K801
K902
L709
L710
B88
L901
L952
L955
L957
L959
PC901
B77
Q743
Q744
Q753
Q754
Q755
Q756
Q951
Q991
B308
Q21
R711
R712
R713
R715
R726
R731
R740
R741
R742
R743
R1500
R746
R748
R750
R751
R752
R753
R1501
R756
R758
R761
R762
R764
R765
R766
R767
R771
R772
R774
R775
R776
R777
R780
R781
R782
R783
R790
R791
R792
R793
R797
R818
X1
B5
R901
R903
R905
R906
R907
R908
R920
R956
R1721
RA1RA2 RA3
S801
T901
T1701
Q22
B15
B17
B18
B19
B20
B21
B12
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B80
B40
D828
B42
B43
B515
B45
B46
B48
B49
B50
B55
B54
B229
B56
B57
B58
B875
B61
B62
B64
B65
B66
B67
D905
B69
B101
B102
B103
B104
B105
B106
B107
B108
B109
B110
B111
B112
B113
B114
B115
C748
B118
B119
C749
B83
B123
B125
B126
B127
B128
B129
B130
B131
B132
B133
B79
B202
B203
B204
B205
B206
B207
B208
B209
B212
B215
B218
B219
B220
B223
B224
B225
B226
B170
C994
B301
B302
B303
HS901
B81
B304
B305
B306
B307
B309
B311
B313
B314
B315
B316
B317
B318
B321
B322
B323
B324
B325
B326
B327
B328
B329
B611
C700
B402
B403
B404
B405
C703
IC701
B409
B410
B411
B412
B413
B414
B415
B416
B417
B418
B419
B420
B504
B505
B506
B507
B508
B509
B510
B511
B512
B513
B514
B602
B603
B604
B605
B606
B607
B608
B610
B601
B701
B702
B703
S802
B874
B753
B755
B757
B758
B759 B760
EP901
B852
B856
B857
B861
B864
B865
B866
B867
B871
B872
B873
R1726
B330
B227
B705
B706
B422
C1800
B310
K707
K708
K709
K710
B82
K711
B254
B41
CN512 CN513
JT102
JT103
CN4
B162
B151
B152
C831
C832
B251
B431
B154
B155
B252
B253
B156
B90
B91
B92
B94
B93
B331
B95
CP952
C977
C975
L960
C976
B121
C819
P901
B261
B70
B23 B22
B165
B51
B71
B163
B161
B74
B73
B159
B160
B167
B164
B72
B59
B166
B262 B432
B211
B99
D981
B134
B124
K1721
B1721
IC952
L831
K721
B116
B168
B96
B98
B97
B85

XV-S500BK/XV-S502SL
1-5
Precautions for Service
Handling of Traverse Unit and Laser Pickup
1. Do not touch any peripheral element of the pickup or the actuator.
2. The traverse unit and the pickup are precision devices and therefore must not be subjected to strong shock.
3. Do not use a tester to examine the laser diode. (The diode can easily be destroyed by the internal power
supply of the tester.)
4. To replace the traverse unit, pull out the metal short pin for protection from charging.
5. When replacing the pickup, after mounting a new pickup, remove the solder on the short land which is
provided at the center of the flexible wire to open the circuit.
6. Half-fixed resistors for laser power adjustment are adjusted in pairs at shipment to match the characteristics
of the optical block.
Do not change the setting of these half-fixed resistors for laser power adjustment.
Destruction of Traverse Unit and Laser Pickup by Static Electricity
Laser diodes are easily destroyed by static electricity charged on clothing
or the human body. Before repairing peripheral elements of the traverse
unit or pickup, be sure to take the following electrostatic protection:
1. Wear an antistatic wrist wrap.
2. With a conductive sheet or a steel plate on the workbench on which the traverse unit or the pick up is to be
repaired, ground the sheet or the plate.
3. After removing the flexible wire from the connector (CN101), short-circuit the flexible wire by the metal clip.
4. Short-circuit the laser diode by soldering the land which is provided at the center of the flexible wire for the
pickup. After completing the repair, remove the solder to open the circuit.
Servo control
board
Short circuit
Please refer to "Fig.4" of "Disassembly
method" for details.
Short circuit
CN101

XV-S500BK/XV-S502SL
1-6
Disassembly method
<Main body>
Removing the top cover (see Fig.1)
Removing the mechanism assembly
(see Fig.2,3)
Removing the servo control board
(see Fig.4)
1.Remove the two screws Aattaching the top cover
on both sides of the body.
2.Remove the three screws Battaching the top
cover on the back of the body.
3.Remove the top cover from the body by lifting
the rear part of the top cover.
ATTENTION: Do not break the front panel tab
fitted to the top cover.
* Prior to performing the following procedure, remove
the top cover.
* There is no need to remove the front panel assembly.
1.Remove the three screws Cattaching the
mechanism assembly on the bottom chassis.
2.Remove the two screws Fattaching the lug wire and
main board on the bottom chassis.
3.The servo control board is removed from the
connector CN512 and CN513 connected with the
main board respectively.
4.Remove the mechanism assembly by lifting the rear
part of the mechanism assembly.
* Prior to performing the following procedure, remove
the top cover and mechanism assembly.
1.Disconnect the card wire from connector CN201 and
CN202 on the servo control board respectively.
2.Disconnect the flexible wire from connector CN101
on the servo control board from pick-up.
< ATTENTION >
At this time, please extract the wire after short-circuited
of two places on the wire in part awith solder.
Please remove the solder two places of part aafter
connecting the wire with CN101 when reassembling.
3.Two places in hook bare removed, the servo control
board is lifted, and it is removed.
A x 2
B
B
B
Fig.1
CN513 CN512
Servo control board
Main board
Mechanism
assembly
Fig.3
Hook b Hook b
Servo control
board
Fig.4
CN101
CN202
CN201
C
C
JT102,JT103 CN4
Fig.2
Main board
Lug wire Mechanism
assembly
F
F

XV-S500BK/XV-S502SL
1-7
Removing the rear panel (see Fig.5)
Removing the front panel assembly
(see Fig.6,7)
Removing the main board (see Fig.7)
*Prior to performing the following procedure, remove
the top cover.
1.Remove the nine screws Dattaching the rear panel
on the back of the body.
* Prior to performing the following procedure, remove
the top cover.
* There is no need to remove the mechanism assembly.
1.Remove the one screw Eattaching the front panel
assembly on the bottom chassis.
2.Disconnect the wire from JT102, JT103 and CN4 on
the main board respectively.
3.Hook cand dare removed respectively, and the front
panel assembly is removed.
* Prior to performing the following procedure, remove
the top cover, mechanism assembly and rear panel.
1.Disconnect the wire from JT102, JT103 and CN4 on
the main board respectively.
2.Remove the four screws Fattaching the main board
on the bottom chassis.
DDD D
D
Rear panel
Fig.5
E
Hook c
Hook d
Hook d
Front panel
assembly
Fig.6
Fig.7
JT102,JT103 CN4
Main board
Mechanism
assembly
F
F
FF

XV-S500BK/XV-S502SL
1-8
Remove the four screws Aattaching the clamper
assembly.
Move the clamper in the direction of the arrow to
release the two joints aon both sides.
1.
2.
<Loading assembly section>
Removing the clamper assembly
(See Fig.1)
Prior to performing the following procedure, remove
the clamper assembly.
Push bof the slide cam into the slot on the left side
of the loading base until it stops.
Draw out the tray toward the front.
1.
2.
Removing the tray (See Fig.2 and 3)
When reattaching, fit the clamper to
the two joints a.
ATTENTION:
Before reattaching the tray, slide the
part cof the slide cam to the right as
shown in Fig.3.
ATTENTION:
Joint a
Joint a
AA
A
A
Fig.1
Fig.2
Fig.3
Push
b
Tray
Clamper base
Part c
Slide cam

XV-S500BK/XV-S502SL
1-9
Prior to performing the following procedure, remove
the clamper assembly and the tray.
Remove the four screws Battaching the traverse
mechanism assembly.
1.
Removing the traverse mechanism
assembly (See Fig.4 and 5)
Before reattaching the traverse
mechanism assembly, pass the card
wire extending from the spindle motor
board through the notch dof the
elevator.
ATTENTION:
Prior to performing the following procedure, remove
the clamper assembly, the tray and the traverse
mechanism assembly.
Extend each bar einside of the loading base
outward and detach the elevator shaft.
1.
Removing the elevator (See Fig.6 and 7)
When reattaching, first fit the two
shafts on the front of the elevator to
the slots fof the slide cam.
ATTENTION:
Fig.4
Fig.5
Fig.6Fig.7
BB
B
BB
B
Traverse mechanism
assembly
B
BB
Traverse mechanism assembly
Elevator
Notch d
Elevator
Elevator
Elevator
e
e
Loading base
Elevator
Shafts
Slide cam
Slots f

XV-S500BK/XV-S502SL
1-10
Prior to performing the following procedure, remove
the clamper assembly, the tray, the traverse
mechanism assembly and the elevator.
Remove the belt from the pulley.
Remove the screw Cattaching the motor assembly.
Turn over the body and remove the screw D
attaching the motor assembly.
Release the two tabs gretaining the motor board.
1.
2.
3.
4.
Removing the motor assembly
(See Fig.8 and 9)
Fig.8
Fig.9
C
Motor assembly
Belt
Loading base
Motor assembly
D
Tabs g

XV-S500BK/XV-S502SL
1-11
Prior to performing the following procedure, remove
the clamper assembly, the tray, the traverse
mechanism assembly, the elevator and the motor
assembly.
Press the two tabs hinward and pull out the idle
gear.
Remove the screw Eattaching the pulley gear
bracket. Slide the pulley gear bracket in the direction
of the arrow and pull out the pulley gear.
Slide the slide cam in the direction of the arrow to
release the two joints iand remove upward.
Remove the middle gear.
1.
2.
3.
4.
Removing the Idle gear / pulley gear /
middle gear / slide cam (See Fig.10 to 12)
Fig.11
Fig.12
Fig.10
Motor assembly
Pulley gear
Pulley gear bracket
Pulley gear bracket
E
Idle gear
Idle gear
Pulley gear
Tads h
Pulley gear
Middle gear
Joint i Joint i
Slide cam
Slide cam
Middle gear
Loading base

XV-S500BK/XV-S502SL
1-12
Prior to performing the following procedure, remove
the feed motor assembly.
Remove the screw Gattaching the thrust spring.
1.
Removing the feed motor
(See Fig.13 to 15)
Unsolder the two soldering jon the spindle motor
board.
Remove the two screws Fattaching the feed motor
assembly.
1.
2.
Removing the feed motor assembly
(See Fig.13)
When reattaching the thrust spring,
make sure that the thrust spring
presses the feed gear (M) and the feed
gear (E) reasonably.
ATTENTION:
Remove the feed gear (M).
Pull out the feed gear (E) and the lead screw.
Remove the two screws Hattaching the feed motor.
2.
3.
4.
When reattaching, pass the two cables
extending from the feed motor through
the notch kof the feed holder as
shown in Fig.13.
ATTENTION:
<Traverse mechanism assembly section>
Fig.13
Fig.14
Fig.15
F
Soldering j
Notch k
F
Feed motor assembly
Spindle motor board
Spindle motor
Feed gear (M)
Thrust spring
G
Feed gear (E)
Lead screw
Feed motor
Feed holder
H
Pickup

XV-S500BK/XV-S502SL
1-13
Remove the screw Iattaching the T spring (S) and
the shaft holder. Remove also the plate.
1.
Removing the pickup (See Fig.16 and 17)
Remove the screw Kattaching the shaft holder.
Remove the shaft.
1.
2.
Removing the shaft holder / shaft
(See Fig.18)
When reattaching, make sure that the
T spring (S) presses the shaft.
ATTENTION:
Pull out the part lof the shaft upward. Move the part
min the direction of the arrow and detach from the
spindle base.
Disengage the joint nof the pickup and the shaft in
the direction of the arrow.
Pull out the shaft from the pickup.
Remove the two screws Jattaching the actuator.
Disengage the joint of the actuator and the lead
spring. Pull out the lead spring.
2.
3.
4.
5.
6.
The spring must be under the shaft when you
install pick-up.
Fig.16
Fig.17
Fig.18
T spring (S)
Plate
Joint n
Pickup
Part m
Shaft holder
Part l
I
Shaft
Shaft
Spring
Pick-up
Pickup
Lead spring
Actuator
J
Actuator
Lead spring
Shaft
Shaft holder
K

XV-S500BK/XV-S502SL
1-14
Remove the three screws Lattaching the spindle
motor on the bottom of the mechanism base.
1.
Removing the spindle motor assembly
(See Fig.19 to 21)
When reattaching, pass the card wire
extending from the spindle motor
board through the notch of the spindle
base.
ATTENTION:
Remove the three screws Mattaching the spindle
base.
2. Fig.19
Fig.20
Fig.21
Spindle motor assembly
Spindle base
L
M
M
Spindle base
Mechanism base
L
L
Spindle motor

XV-S500BK/XV-S502SL
1-15
Adjustment method
(1) Test mode setting method
(2) Initialization method
(3) Method of displaying version of microcomputer
Please initialize according to the following procedures when microprocessor or pick-up is
exchanged and when the up-grade is done.
1) Take out the disc and close the tray.
2) Unplug the power plug.
3) Insert power plug into outlet while pressing both "PLAY" key and "STOP" key of the main body.
4) The player displays "TEST " on the FL display. " " means the player version.
5) When the power supply is turned off, test mode is released.
1) Makes to test mode.
2) "PAUSE" key of the main body is pushed.
3) A green progressive indicator lights when about a few seconds pass. Then, it is initialization completion.
*Please make scan mode test mode in the state of interlaced scan mode.
(State of progressive indicator turning off)
1) Makes to test mode and initializes
2) When "CHOICE" key of remote controller is pushed once, the figure is displayed on the FL display as follows.
__33_39_25__
FL Display
FL Display microcomputer (IC2)
Front end microcomputer (IC401) Decoder part (IC509)
POWER key
STOP key
(for test mode)
PLAY key
(for test mode)
PAUSE key
(for initialize)
FL Display PROGRESSIVE
Indicator
(for initialize)
The mode changes as follows whenever the "CHOICE" key of remote controller is pushed in test mode.
Becomes test mode
Version of microcomputer
Confirmation of FL display
Check mode
Not use mode
TEST_ ----------------------------
_ _ --------------------
FL display becomes all lighting ---
CHECK ---------------------------------
EXPERT --------------------------------
CHOICE key
(switch of mode)

XV-S500BK/XV-S502SL
1-16
(4) Display of current value of laser
(5) Display of jitter value
1) Makes to test mode and initializes.
2) When "CHOICE" key of remote controller is pushed three times, It is displayed on the FL display, "CHECK".
3) The test disk (VT-501) is inserted, and the "PLAY" key to the main body is pushed.
4) The jitter value is displayed on the FL display as follows.
0042 0000
FL Display (example)
0042 1CB4
FL Display (example)
As for the current value of the laser, the figure displayed on the
FL display becomes a current value as it is by "mA" unit.
becomes 42 mA if displayed as 42.
It can be judged it is simply good if the displayed current value of the laser is smaller than that of the
undermentioned value.
Moreover, there must be a deteriorated possibility and the pick-up must exchange the pick-up more
than the undermentioned value.
In the following cases, please "Flap adjustment of the pick-up guide shaft" referring to the following page.
Before using the TEST disc VT-501, careful check it if there is neither damage nor dirt on the read surface.
The jitter value is displayed by the hexadecimal number.
1) Makes to test mode and initializes.
2) When "CHOICE" key of remote controller is pushed three times, It is displayed on the FL display, "CHECK".
3) Afterwards, the laser current value can be switched by pushing the key to remote controller without turning
on the disc.
4) The laser output stops if the "STOP" key to remote controller is pushed.
Remote controller "4" key --- Laser of CD
Remote controller "5" key --- Laser of DVD
Laser current value of CD ------ 49 mA or less
Laser current value of DVD ---- 64 mA or less
* When you exchange the pick-up
* When you exchange the spindle motor
* When the reading accuracy of the signal is bad (There is a block noise in the screen etc..)
< In the following cases, please adjustment >
POWER key
STOP key
(for test mode) PLAY key
(for test mode and jitter value)
PAUSE key
(for initialize)
FL Display PROGRESSIVE
Indicator
(for initialize)
CHOICE key
(switch of mode)
4 key (laser of CD)
5 key (laser of DVD)
UP key
(for firmware upgrade)
STOP key (laser OFF)
Laser current value
Jitter value

XV-S500BK/XV-S502SL
1-17
(6) Upgrading of firmware
* The up-grade is done by using the STEP1 disc according to "1)" and "4)" of the above-mentioned procedure.
* The tray opens automatically after a few seconds and exchange for the disc of STEP2, please.
* The tray closes automatically. There is only about five second time that the tray opens this time,
and replace the disc quickly between those, please.
* After the up-grade ends, the STEP2 disc is removed because the tray opens automatically.
* Afterwards, it is the same as 6),7) of the above-mentioned procedures.
The disc for the up-grade is usually one piece. The disc becomes two pieces according to
the version. In that case, please note the undermentioned content.
ATTENTION
When the tray shuts with the STEP1 disc left for the tray
The up-grade starts again and exchange for the STEP2 disc, please when the tray opens automatically.
When the tray closes with there no disc in the tray
Because the tray opens automatically, the disc of STEP2 is put on the tray.
The power supply is turned off once pushing the "POWER" key.
The up-grade starts when the "POWER" key is pushed afterwards.
When up-grade is completed
Upgrade progress...
Upgrading (blue screen)After inserting the up-grade disc
1) The power supply is turned on pushing the "POWER" key.
2) The up-grade disc is inserted.
3) When FL display of the main body changes from "READING" into "UPGRADE", cursor "UP" key ( ) of
remote controller is pushed.
4) The up-grade starts if the entire screen becomes blue and it is displayed, "Upgrade progress".
5) The tray opens automatically, the up-grade disc is removed.
6) The up-grade ends if the tray closes automatically, and the screen returns to the normal screen.
7) Please confirm the version of the microcomputer after makes to test mode and initializes.
(7) Display of region code
1) Makes to the stand-by state.
2) The "POWER" key is pushed while pushing the "BACK SKIP" key and the "FORWARD SKIP" key to the
main body.
3) Region code is displayed on the FL display as follows.
Firmware upgrade Disc ... press UP
NO DISC
REGION__
FL Display
= Region code

XV-S500BK/XV-S502SL
1-18
Mechanism assembly
Servo control board Hook
Shaft
Mechanism assembly
Stud
Stud
Servo control board
Assistance
board
Assistance
board
Extension
cord
Main board
XV-S40 CONTROL CONNECT
Assistance board
(Connect to servo control board)
Assistance board
(Connect to main board)
Extension
cord
XV-S40
MAIN CONNECT
Flap adjustment of the pick-up guide shaft
<Tool list for adjustment>
Stud (four pieces set)
Parts No. : JIGXVS40
Extension cord set (two cord and two board)
Parts No. : EXTXVS40CB
Hex wrench for adjustment
Off-the-shelf (1.3mm)
Test disc
VT-501 or VT-502
Stud
One is not used though it is one
set which consists of four units.
<Adjustment preparation>
<Adjustment>
1. The mechanism assembly is made in the state from the main body from which is detached referring to the
disassembly method.
2. Three studs are installed in the mechanism assembly respectively.
3. The servo control board is removed from the mechanism assembly, and puts into the state set up as shown
in figure. (Each wire connected by the servo control board this time leaves the connection maintained.)
Between shaft and hook of mechanism assembly of figure Board is put And, the board is inclined in the
direction of the arrow on figure as much as possible.
4. The extension cord is inserted in the connector of the assistance board respectively.
The main board is connected with the servo control board as shown in figure.
1. Puts into the state to display the jitter value on the FL display referring to "Display of the jitter value".
2. The adjustment screw under the traverse mechanism is turned with hex wrench, and matches so that the
jitter value displayed on the FL display may become maximum value.
Adjustment screw a Adjustment screw b
Adjustment
screw c
<POINT>
1. Turns in the forward or the opposite direction,
and makes to the position where the jitter value
is good the half rotation of adjustment screw a
and b(180 degrees) respectively.
2. Afterwards, adjustment screw b and c are turned
in the same way, and makes to the best position.

XV-S500BK/XV-S502SL
1-19
Attention when pick-up is exchanged
CN101
Switch actuator
Lead spring
Pick-up
Pick-up spring
Flexible wire
Short land
part "a"
Flexible wire
Connector
Short land
part "a"
Electrostatic breakdown
protection circuit
Servo control
board
Electrostatic breakdown
protection circuit
Cutting part
1.Flexible wire, pick-up spring, switch actuator,
and lead spring are removed from an old pick-up
(broken the one).
< Guide >
Flexible wire, pick-up spring and switch actuator,
lead spring are removed without each decomposing
while assembled.
2.The above-mentioned parts are installed in a new
pick-up (non-defective article).
3.A flexible wire is inserted in the connector which has
taken side with the pick-up, and solder is put up to short
land part "a" two places on a flexible wire.
4.The electrostatic breakdown protection circuit attached
to the pick-up is cut.
Please cut the electrostatic breakdown protection circuit
attached to the pick-up after solder is put up to two places
on a flexible wire short land part "a" of the insertion of a
flexible wire this time in the connector without fail.
The procedure might be mistaken and if solder has not
surely adhered to two places on a flexible wire short land
part "a", the laser diode in the pick-up be destroyed again.
< ATTENTION >
Please remove solder in two places in part "a" after
connecting a flexible wire with connector CN101 on
the servo control board without fail this time.
When the procedure is mistaken, the laser diode in
the pick-up might be destroyed.
Please remove solder in two places in part "a" surely.
< ATTENTION >
5.The pick-up is installed in the traverse mechanism.
6.A flexible wire is connected with connector CN101 on the
servo control board by installing the traverse mechanism
in the loading mechanism.
7.Solder in two places on a flexible wire in part "a" is
removed.

XV-S500BK/XV-S502SL
1-20
Confirm method of operation
Please confirm the operation of the undermentioned item after doing the repair and
the upgrade of the firmware.
The EEPROM is initialized.
Refer to the initialization method.
Opening picture check (Power ON)
It should be display "JVC"
Muting working
The noise must not be had to the performance beginning when you
push "PLAY" button or at ON/STANDBY.
FL Display
The mark and the logo, etc. displayed by each operation must be displayed correctly.
FL Display should light correctly without any unevenness.
All Function button
All function buttons should worked correctly with moderate click feeling.
Open and close movement of tray
When press OPEN/CLOSE button the tray should move smoothly without any noise.
Remote controller unit working
Check the correctly operation in use of remote controller unit.
Reading of TOC
Be not long in the malfunction.
Search
Both forward-searches and backward-searches should be able to be done.
Do not stop be searching or after the search.
Skip
Both forward-skip and backward-skip should be able to be done.
Do not stop be after the skip.
Playback
Do not find abnormality etc. of tone quality and the picture quality.
Most outside TITLE playback check
Play VT-501 TITLE 59 CHAPTER 1 , check normal playback.
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Table of contents
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