Dimensions (Approx.)430 × 35 × 201 mm (17 × 1.4 × 7.9 inches) (W × H × D) without foot
Net weight (Approx.)1.6 kg (3.5 lbs)
Operating temperature5 °C to 35 °C (41 °F to 95 °F)
Operating humidity5 % to 90 %
Outputs
VIDEO OUT1.0 V (p-p), 75 Ω, sync negative, RCA jack × 1
S-VIDEO OUT(Y) 1.0 V (p-p), 75 Ω,negative sync, Mini DIN 4-pin × 1
(C) 0.3 V (p-p),75 Ω
COMPONENT VIDEO OUT (Y) 1.0 V (p-p), 75 Ω,negative sync, RCA jack × 1,
(Pb)/(Pr) 0.7 V (p-p),75 Ω, RCA jack x 2
AUDIO OUT2.0 Vrms (1 KHz, 0 dB), 600 Ω, RCA jack (L, R) × 1
DIGITAL OUT (COAXIAL) 0.5 V (p-p), 75 Ω, RCA jack × 1
System
Laser
Signal system
Frequency responseDVD (PCM 96 kHz): 8 Hz to 44 kHz
Signal-to-noise ratioMore than 90 dB (ANALOG OUT connectors only)
Harmonic distortionLess than 0.02%
Dynamic rangeMore than 95 dB (DVD/CD)
Accessories
Video cable (1), Audio cable (1), Remote control (1), Batteries (2)
Note:
Design and specifications are subject to change without prior notice.
Semiconductor laser, wavelength 650 nm
NTSC
DVD (PCM 48 kHz): 8 Hz to 22 kHz
CD: 8 Hz to 20 kHz
1-2 (No.YD118)
Page 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, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 ohm 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.).
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. (Except
the JC version)
each exposed
metal part.
(No.YD118)1-3
Page 4
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 DVD players.
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 Precautions of the safe use of battery
• Store the battery in a place where children cannot reach.If a child accidentally swallows the battery, consult a doctorimmediately.
• Do not recharge, short, disassemble or heat the battery or dispose of it in a fire.
Doing any of these things may cause the battery to give off heat, crack, or start a fire.
• Do not leave the battery with other metallic materials.Doing this may cause the battery to give off heat, crack, or start a fire.
• When throwing away or saving the battery, wrap it in tape and insulate; otherwise, the battery may start to give off heat, crack, or
start a fire.
• Do not poke the battery with tweezers or similar tools.Doing this may cause the battery to give off heat, crack, or start a fire.
• Dispose of batteries in the proper manner, according to federal, state, and local regulations.
1-4 (No.YD118)
Page 5
1.8Important for laser products
!
1.CLASS 1 LASER PRODUCT
2.CAUTION : VISIBLE AND/OR INVISIBLE CLASS 1M
LASER RADIATION WHEN OPEN.
DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS.
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 laser products 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.
CAUTION : VISIBLE AND/OR INVISIBLE CLASS 1M
LASER RADIATION WHEN OPEN.
DO NOT STARE INTO BEAM OR VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS.
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.
(No.YD118)1-5
Page 6
SPECIFIC SERVICE INSTRUCTIONS
2.1 SERVICE INFORMATION FOR EEPROM
POWER ON
SECTION 2
DVD LOGO Status (NO Disk status)
Remotecontrol
Pause key-->1-->4-->7-->2 in order.
Press number 0~8, Press charater
A~F (1~6 for a while)
Use arrow key (F D G E) to move
to approprite position and make
changes
(1) Remove the two screws A attaching the top cover on both
sides of the main body.
(2) Remove the three screws B attaching the top cover on the
back of the main body.
(3) Raise the both sides and lower part of the rear of the top
cover, with opening them slightly in an outward direction.
And the top cover will be removed.
TOP COVER
TOP COVER
3.1.3 Removing the mechanism assembly (See figure 4)
• Prior to performing the following procedure, remove the top
cover and front panel assembly.
(1) Disconnect the card wire from connectors P2201
on the main board.
P2202
(2) Remove the four screws C attaching the mechanism as-
sembly.
Mechanism assembly
B
C
C
Main board
and
P2201
A x 2
B
Fig.1
3.1.2 Removing the front panel assembly (See figure 2, figure 3)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the card wire from connector P6901
main board.
(2) Remove the eight hooks a, and then remove the front panel
assembly.
Main board
Hook a
Front panel assembly
Hook a
Fig.2
Hook a
P6901
B
on the
Hook a
Hook a
C
P2202
C
Fig.4
3.1.4 Removing the regulator board and main board (See
figure 5)
• Prior to performing the following procedure, remove the top
cover.
(1) Disconnect the wire from connector PW6101
board.
(2) Disconnect the power cord from connector PW101 on the
regulator board.
(3) Remove the four screws D attaching the regulator board.
(4) Disconnect the card wire from connectors P2201
and P6901
(5) Remove the two screws E attaching the main board.
(6) Remove the two screws F attaching the main board with
rear panel.
on the main board.
D
D
PW6101
E
P6901
on the main
, P2202,
P2202
E
Front panel
assembly
Hook a
Fig.3
D
PW101
Regulator board
D
Fig.5
Main board
F
F
P2201
(No.YD118)1-7
Page 8
3.2 DVD MECHANISM PARTS LOCATION
• TOP VIEW (WITH TRAY)
• TOP VIEW (WITHOUT TRAY)
Procedure
Starting No.
PartsFixing Type
Disass
embly
Fig-
ure
1 Main Base4-1
12
Clamp Assembly Disc
4-1
1, 23 Plate Clamp4-1
1, 2, 34 Magnet Clamp4-1
1, 2, 3, 45 Clamp Upper4-1
16Tray Disc4-2
1, 67
Base Assembly
Sled
4-3
4 Screws,
1, 2, 68 Gear Feed
1 Connector
4-3
1 Locking Tabs
1, 2, 6, 89 Gear Middle
1, 2, 6, 8,9 10 Gear Rack1 Screw4-3
1, 2, 711 Rubber Rear4-3
1, 2, 712
Frame Assembly Up/Down
1 ScrewBottom 4-4
1, 213 Belt Loading 1 Locking Tab4-4
1, 2 ,13 14 Gear Pulley4-4
1, 2, 13, 14 15 Gear Loading1 Locking Tab4-4
1, 2, 7, 12,
13, 14
1, 2, 1317
1,2,7,12,13,
14,15,16,17
16 Guide Up/Down4-4
PWB Assembly
Loading
1 Locking Tab
1 Hook
2 Screw
Bottom 4-4
18 Base Main2 Locking Tabs4-4
• BOTTOM VIEW
Note
When reassembling, perform the procedure in reverse order.
The “Bottom” on Disassembly column of above Table indicates
the part should be disassembled at the Bottom side.
1-8 (No.YD118)
Page 9
3.3 DVD MECHANISM DISASSEMBLY
Fig.4-1
3.3.1 MAIN BASE (FIG. 4-1)
3.3.1.1Clamp Assembly Disc
(1) Place the Clamp Assembly Disc as Fig. (A)
(2) Lift up the Clamp Assembly Disc in direction of arrow(A).
(3) Separate the Clamp Assembly Disc from the Holder
Clamp.
3.3.1.1.1Plate Clamp
(1) Turn the Plate Clamp to counterclockwise direction and
then lift up the Plate Clamp.
3.3.1.1.2Magnet Clamp
3.3.1.1.3Clamp Upper
Fig.4-2
3.3.2 TRAY DISC (FIG. 4-2)
(1) Insert and push a Driver in the emergency eject hole(A) at
the right side, or put the Driver on the Lever(B) of the Gear
Emergency and pull the Lever(B) in direction of arrow so
that the Tray Disc is ejected about 15~20mm.
(2) Pull the Tray Disc until it is separated from the Base Main
Put the Base Main face down (Bottom Side)
(1) Release the screw (S4)
(2) Unlock the Locking Tab (L3) in direction of arrow and then
lift up the Frame Assembly Up/Down to separate it from the
Base Main.
Note
• When reassembling move the Guide Up/Down in direction of
arrow(C) until it is positioned as Fig.(C).
• When reassembling insert (A) portion of the Frame Assembly Up/Down in the (B) portion of the Guide Up/Down as
Fig.(B)
3.3.6 BELT LOADING(FIG. 4-4)
Note
Put the Base Main on original position(Top Side)
3.3.7 GEAR PULLEY (FIG. 4-4)
(1) Unlock the Locking Tab(L4) in direction of arrow(B) and
then separate the Gear Pulley from the Base Main
Fig.4-4
3.3.8 GEAR LOADING (FIG. 4-4)
3.3.9 GUIDE UP/DOWN (FIG. 4-4)
(1) Move the Guide Up/Down in direction of arrow(A) as
Fig.(A)
(2) Push the Locking Tab(L5) down and then lift up the Guide
Up/Down to separate it from the Base Main.
Note
When reassembling place the Guide Up/Down as Fig.(C) and
move it in direction arrow(B) until it is locked by the Locking
Tab(L5). And confirm the Guide Up/Down as Fig.(A)
3.3.10 PWB ASSEMBLY LOADING (FIG. 4-4)
Note
Put the Base Main face down(Bottom Side)
(1) Release 1 Screws(S5)
(2) Unlock the Loading Motor (C2) from the Hook (H1) on the
Base Main.
(3) Unlock 2 Locking Tabs(L6) and separate the PWB Assem-
bly Loading from the Base Main.
3.3.11 BASE MAIN (FIG. 4-4)
(No.YD118)1-11
Page 12
SECTION 4
ADJUSTMENT
4.1 The version of the firmware is confirmed
(1) The power supply is turned ON.
(2) Press the "SETUP" button of the remote control unit to select "16:9" in "Display Mode".
TV Aspect
Display Mode
TV Output Select
4:3
16:9
Prev. Move Enter
(3) Press the buttons of the remote control unit in the following order.
"1"→"3"→"9"→"7"→"1"→"3"→"9"→"ENTER"
(4) When the TV display changes as shown as below, check the firmware version.
SYSTEM INFORMATION
MODEL : JVC_DV_JV070D202230BZIH
CHIP I.D : VADDIS_888
Firmware version
of main body
SERVO VER. : 40.52
MICOM VER. : V1.372
Check Sum : B6B3
PROM OPTION 55 53 00 d3 03 55 f4 00
Factory Reset..Done.
(5) Press the "ENTER" button of the remote control unit to display the initial screen.
4.2 Updating the firmware
• Firmware update disc supports CD-R media.
• When firmware update is necessary, information is available from the web site of DIGITAL VIDEO STORAGE, CS group.
4.2.1 Creating an update disc
Please check the details of the update disc creation method with JS-NET.
(1) Down load the update file from JS-NET.
(2) Write the update file into CD-R. Pay attention in the following points when writing the update disc.
• Make sure to write in "Disc at Once".
• Set the file compatibility to "JOLIET format".
If the writing method is not correct, the update results in an error.
4.2.2 Update procedure
(1) Turn the power of the main unit ON, and insert the update disc.
(2) The TV screen shows the display as shown as below after a while, select "Start" and then press "ENTER" with the remote control
unit.
Firmware upgrade
Cancel Start
(3) When "Erase and Program Do Not Power Off" is displayed on the TV screen and the tray opens in a few seconds, remove the
update disc.
(4) Wait for about three minutes.
(5) When the firmware updating is completed, the tray closes automatically and the power is turned OFF.
(6) Turn the power ON, and then check the firmware version.
1-12 (No.YD118)
Page 13
TROUBLESHOOTING
5.1 ELECTRICAL TROUBLESHOOTING GUIDE
5.1.1 POWER CHECK FLOW
SECTION 5
A.B.
No 5VNo 3.3VA
Is 3.3VA
NO
NO
section working?
YES
Is 5.6V present at
collector of Q126?
YES
No 3.3VA
NO
Replace Q126.Check FR101Replace Q121.
Is there a DC voltage at
NO
cathode of D105 or D107?
Is 3.3VA
section working?
YES
Is 3.3V
present at emitter
of Q121?
YES
YES
Check D105/D106/D107/
D108 and replace.
YES
Replace IC101.
(No.YD118)1-13
Page 14
5.1.2 SYSTEM OPERATION FLOW
Power on
1. 8032 CPU initializes SERVO, DSP&
RISC registers
2. Write RISC code to SDRAM
3. Reset RISC
Show LOGO
YES
Tray closed?
NO
Tray close to closed position
SLED at inner side?
NO
SLED moves to inner position
1. Judge whether have disc and disc type
2. Jump to related disc reading procedure
Recieve
OPEN/CLOSE key?
YES
YES
1. Execute pressed key & IR key
2. System operation routine loop
1. Stop playback & open tray
2. Display tray open message & LOGO
NO
1-14 (No.YD118)
NO
YES
Receive CLOSE key?
Page 15
5.1.3 SYSTEM TEST FLOW
TEST
Check the AC
Voltage power PCBA (110V or
220V)
YES
Switch on the power PCBA
Is the DC
voltage outputs OK?
(5V, 3.3V, 12V, 5.6V
MOTOR)
YES
Make sure the main PCBA don't
short on VCC and switch it on.
YES
Is 3.3V and 1.8V DC
outputs normal on main
PCBA?
YES
NO
NO
NO
Replace power PCBA or AC transformer.
Repair or replace power PCBA
Check the regulators or related diodes.
Connect to PC RS232 cable and
update the FLASH memory code.
Update FLASH
successfully?
YES
A
NO
1. Check 27MHz system clock.
2. Check system reset circuit.
3. Check FLASH R/W enable signal PRD,
RWR.
4. Check RS232 SIGNALS.
5. Check FLASH memory related circuit.
(No.YD118)1-15
Page 16
A
RESET or power on.
Show LOGO?
YES
NONO
Flash
memory operates
properly?
YES
SDRAM
NO
works properly?
YES
ZR966
NO
VIDEO outputs
properly?
YES
Have TV
NO
signal output?
YES
Check AV cable
connection to TV set.
Check connection lines
between FLASH & ZR966
and the FLASH access time
whether is suitable or not.
Check connection lines
between SDRAM & ZR966
and the SDRAM is damaged.
Check the related circuit of
ZR966
Check the filtering and amp
circuit of TV signal.
move inside when it is not
Does tray
at closed position?
YES
B
NO
Normal
TROUT & TRIN
signals?
YES
Normal
TRCLOSE & TROPEN
signal?
YES
Normal
LOAD+ & LOAD
signal?
YES
Check the cable
connection between main
PCBA and loader.
NO
NO
NO
Check the load OPEN &
CLOSE switch
Check the tray control IO
pins on ZR966 & AM5869S
Check the tray control
amplifying circuit on motor
driver.
1-16 (No.YD118)
Page 17
B
Does the
SLED move
to inner side when it is at
outer position?
YES
Do not put in disc and
tray close.
Optical Lens has
movements for searching
Focus?
Motor
driver DRVSB pin
is high?
YES
Is SLED_S
DC Level higher than
1.4V?
YES
SL+
and SL- output
properly?
YES
Check the cable connection
with MECHA.
Proper
FOCUS_S outputs to
motor driver?
YES
NONO
NO
NO
NONO
Check the connection line of
DRVSB signal.
Check the related circuit of
Sled_S.
Check the amp circuit on
motor driver.
Check FOCUS_S connection
on ZR966 and motor driver.
C
YES
Proper
F+ & F-
outputs?
YES
Check cable connect on
with pick-up head.
NO
Check the amp circuit on
motor driver.
(No.YD118)1-17
Page 18
C
Laser
turns on when reading
disc?
YES
Put disc in?
YES
Disc ID is correct?
NONO
DVD_LD or
CD_LD output
properly?
YES
Collector
NO
voltage of power transistor
is OK?
YES
Check cable connection
between transistor output
and pick-up head.
NO
Laser off
NO
Proper RF signal
NO
on ZR966?
YES
Check the laser power circuit
on ZR966 and connecting
to power transistor.
Check the related circuit on
laser power transistor
Check the related circuit
on RF signal.
YES
Does
spindle rotate?
YES
D
Check DVD_LD &
CD_LD signal
NONO
SPINDLE_S signal on
Proper
ZR966
YES
SP+ & SP- output
NO
properly?
YES
Check the cable connection
between spindle and main
PCBA.
Check SPINDLE_S related
circuit on ZR966.
Check the spindle control
amp circuit of motor driver.
1-18 (No.YD118)
Page 19
D
Focus on OK?
YES
Track on OK?
NONO
Proper signals on
A,B,C,D of ZR966
YES
Check focus_s
NO
signal on ZR966
YES
F+ & F- output
properly?
YES
Check cable connection on
pick-up head.
NONO
Properly track_s
signal on ZR966?
YES
Check connections between
ZR966 and pick-up head.
Check the focus_s connection
on ZR966 and motor driver.
Check the focus control
amp circuit on motor driver.
Check the track_s connection
on ZR966 and motor dirver.
YES
Disc is play?
YES
E
NO
T+ & T- output
properly?
YES
Check cable connection on
pick-up head.
Check RF signal waveform.
NO
Check the tracking control
amp circuit on motor driver.
(No.YD118)1-19
Page 20
E
Normal
audio output when disc
playback?
YES
Normal
IR.VFD & Front panel
key functions?
YES
NO
Audio DAC
received correct data
NO
stream?
YES
Normal
NO
audio DAC out?
YES
Check audio filter,
amplify, mute circuit.
Commu-
NONO
nications between
IR.VFD Front panel key
& ZR966 is
normally?
YES
Check connection between
ZR966 & audio DAC.
Check the related
circuit of Audio DAC.
Check communication lines
on ZR966
TEST END
Check the cable connection
on front panel.
1-20 (No.YD118)
Page 21
5.2 DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING
5.2.1 SYSTEM 27MHz CLOCK, RESET, FLASH R/W SIGNAL
1) ZR966 main clock is at 27MHz (X601)
1
Fig.1-1
2) ZR966 reset is active high.
1
3.3VA
2
2
3
3
PWR_CTL
RESET
4
4
Fig.1-2
(No.YD118)1-21
Page 22
3) RS232 waveform during procedure (Downloading)
5
5
6
4) Flash R/W enable signal during download (Downloading)
7
8
TXD
RXD
6
Fig. 1-3
IC602
7
PRD
PWR
1-22 (No.YD118)
8
Fig.1-4
Page 23
5.2.2 SDRAM CLOCK
DCLK = 128MHz, Vp-p=2.2, Vmax=2.7V
9
5.2.3 TRAY OPEN/CLOSE SIGNAL
IC603
9
Fig.2-1
11
10
11
12
13
INSW
OUTSW
10
IC201
CLOSE
13
OPEN
12
Fig.3-1
(No.YD118)1-23
Page 24
5.2.4 SLED CONTROL RELATED SIGNAL (NO DISC CONDITION)
SLED_S(1.9V/1.4V/1.1V)
14
DRVSB(3.3V)
15
15
14
16
17
5.2.5 LENS CONTROL RELATED SIGNAL (NO DISC CONDITION)
SLED+(4.2V/2.8V/1.2V)
SLED-(4.2V/2.8V/1.5V)
Fig.4-1
FOCUS_S(1.5V/1.4V/1.3V)
18
FACT+(3.2V/2.7V/2.2V)
19
FACT-(3.2V/2.7V/2.2V)
20
16
17
18
1-24 (No.YD118)
20
19
Fig. 5-1
Page 25
5.2.6 LASER POWER CONTROL RELATED SIGNAL (NO DISC CONDITION)
CN201
MDI1(0V/180mV)
21
22
CD_LD(3.3V//2.3V)
23
DVD_LD(3.3V/2.3V)
Fig.6-1
5.2.7 SPINDLE CONTROL WAVEFORM (NO DISC CONDITION)
SPINDLE_S(1.4V/1.8V)
24
25
21
22
23
24
SP-(3.6V/2.4V)
SP+(3.6V/4.8V)
25
26
26
Fig.7-1
(No.YD118)1-25
Page 26
5.2.8 FOCUS ON WAVEFORM
IC201
27
28
29
27
28
29
FOCUS_S
27
FF+
FF-
Fig.8-1 (DVD)
28
FOCUS_S
29
FF+
FF-
Fig.8-2 (CD)
1-26 (No.YD118)
Page 27
5.2.9 TRACKING CONTROL RELATED SIGNAL (SYSTEM CHECKING)
TRACK_S
30
30
31
32
30
31
32
Tracking+
Tracking-
Fig.9-1 (DVD)
TRACK_S
Tracking+
Tracking-
P2201
31
32
30
P2201
31
32
Fig.9-2 (CD)
(No.YD118)1-27
Page 28
5.2.10 ZR966 AUDIO COAXIAL OUTPUT (SPDIF)
33
5.2.11 ZR966 VIDEO OUTPUT WAVEFORM
1) 100% COLOR BAR
33
Fig.10-1
1-28 (No.YD118)
Fig.11-1
Page 29
2) COMPOSITE VIDEO SIGNAL
5.2.12 AUDIO OUTPUT FROM ZR966
Fig.11-2
Fig. 12-1
(No.YD118)1-29
Page 30
Victor company of Japan, Limited
DIGITAL VIDEO STORAGE CATEGORY 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
(No.YD118)
Printed in Japan
VPT
Page 31
SCHEMATIC DIAGRAMS
DVD PLAYER
XV-N450BUC,XV-N452SUC,
XV-N452SUM
CD-ROM No.SML200706
Area Suffix
UC -------------- Canada
UM ------ Latin America
DISPLAY
XV-N450BUC,XV-N452SUC,XV-N452SUM [D7P2]
COPYRIGHT 2007 Victor Company of Japan, Limited
No.YD118SCH
2007/6
Page 32
CHARTS AND DIAGRAMS
NOTES OF SCHEMATIC DIAGRAM
Safety precautions
The Components indentified by the symbolare
critical for safety. For continued safety, replace safety
critical components only with manufacturer's recommended parts.
1. Units of components on the schematic diagram
Unless otherwise specified.
1) All resistance values are in ohm. 1/6 W, 1/8 W (refer to
parts list).
Chip resistors are 1/16 W.
K: K (1000 ), M: M (1000K )
2) All capacitance values are in µF, (P: PF).
3) All inductance values are in µH, (m: mH).
4) All diodes are 1SS133, MA165 or 1N4148M (refer to parts
list).
Note: The Parts Number, value and rated voltage etc. in
the Schematic Diagram are for references only.
When replacing the parts, refer to the Parts List.
2. Indications of control voltage
AUX : Active at high.
AUX or AUX(L) : Active at low.
!
4. Voltage measurement
1) Regulator (DC/DC CONV) circuits
REC : Colour bar signal.
PB : Alignment tape (Colour bar).
—: Unmeasurable or unnecessary to measure.
2) Indication on schematic diagram
Voltage indications for REC and PB mode on the schematic diagram are as shown below.
REC mode
12 3
2.5
(5.0)
PB mode
1.8
PB and REC modes
(Voltage of PB and REC modes
are the same)
Note: If the voltages are not indicated on the schematic
diagram, refer to the voltage charts.
6. Indication of the parts for adjustments
The parts for the adjustments are surrounded with the circle
as shown below.
3. Interpreting Connector indications
1
2
Removable connector
3
1
2
Wire soldered directly on board
3
1
Non-removable Board connector
2
3
1
2
4
Board to Board
3
Connected pattern on board
The arrows indicate signal path
7. Indication of the parts not mounted on the circuit board
“OPEN” is indicated by the parts not mounted on the circuit
board.
R216
OPEN
CIRCUIT BOARD NOTES
1. Foil and Component sides
1) Foil side (B side) :
Parts on the foil side seen from foil face (pattern face)
are indicated.
2) Component side (A side) :
Parts on the component side seen from component face
(parts face) indicated.
Parts location are indicated by guide scale on the circuit board.
2. Parts location guides
Parts location are indicated by guide scale on the circuit board.
LOCATION
IC
Category : IC
Horizontal “A” zone
Vertical “6” zone
(A : Component side)
D : Discrete component)
B : Foil side
C : Chip component
REF No.
IC101 B C6 A
Page 33
A
1
2
3
4
5
BCDEFG
IC201
AM5890
Motor Driver
IC601
ZR966
IC604
ES29LV160EF70TG
FLASH ROM
IC603
M12L64164A
SDRAM
CN101
DOWN_LOAD_I/F
IC605
S524A40X21
EEPROM
IC702
MC4580
OP-AMP
Block diagrams
Over all
2-12-2
Page 34
A
1
2
3
4
5
BCDEFG
Power regulator (SMPS) section Servo control (ZR966) section
IC601
ZR966
DVD PLAYER
ONE CHIP
IC201
AM5890
Motor Driver
2-32-4
Page 35
A
1
2
3
4
5
BCDEFG
IC603
64M bit SDRAM
IC605
EEPROM
IC604
FLASH MEMORY
(16M)
IC601 (MPEG + DSP + RF)
ZR966 (208PIN)
LED DRIVE IC
IC901
MPEG & Memory (ZR966) section Video section Audio section
MPEG IC
IC601
Vaddis966
IC701
DACs part : Vaddis 966 have 5 DACs,
Either encoder can be selected to the five 14 bits DACs.
* S-video jack is not used
in case of using Scart jack.
MPEG
IC601
AMP
MC4580M
IC702
6/18/20/24-bit I2S or EIAJ serial audio outputs.
A OUT L
A OUT R
Serial Stereo
Digital Out
COAXI_SPDIF
Oprical_SPDIF
2-52-6
Page 36
A
1
2
3
4
5
BCDEFG
No Power
D105~D108 are Defective
12V No Power
Q123 is Defective
5V No Power
Q126 is Defective
Switching Error
IC102, IC103 are Defective
No Power
FR101 is Defective
Switching Error
IC101 is Defective
3.3V No Power
Q121 is Defective
WHEN SERVICING THIS CHASSIS, UNDER NO
CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN
BE MODIFIED OR ALTERED WITHOUT PERMISSION
FROM THE JVC. ALL COMPONENTS SHOULD BE
REPLACED ONLY WITH TYPES IDENTICAL TO
THOSE IN THE ORIGINAL CIRCUIT. SPECIAL
COMPONENTS ARE SHADED ON THE SCHEMATIC
FOR EASY IDENTIFICATION. THIS CIRCUITDIAGRAM
MAY OCCASIONALLY DIFFER FROM THE ACTUAL
CIRCUIT USED. THIS WAY, IMPLEMENTATION OF THE
LATEST SAFETY AND PERFORMANCE
IMPROVEMENT CHANGES INTO THE SET IS NOT
DELAYED UNTILTHE NEW SERVICE LITERATURE IS
PRINTED.
1. Shaded( ) parts are critical for safety. Replace only
with specified part number.
2. Voltages are DC-measured with a digital voltmeter
during Play mode.
A42LG-EBR35956911 Key board assembly 07 DVD-P JVC Key IN
A46LG-EBR36133520 Main board assembly450UC
A46LG-EBR36133523 Main board assembly452UC
A46LG-EBR36133547 Main board assembly452UM
A47LG-EBR32134222
A47LG-EBR32134221
A49LG-EBR35945311 Timer board assembly 07 DVD-P JVC Timer IN
PW101LG-6630V90108A Connector Wafer
PW6101LG-561-711JConnector Wafer
IC101LG-EAN34789801 IC PWM Controller
IC102LG-6500RDB011B Sensor Position
IC103
IC201LG-EAN33860001 IC Motor Driver
IC601LG-EAN35262701 IC Video Processors
IC603
IC605LG-0ISS240210A IC EEPROM
IC702LG-0ILNRUC001A IC OP Amplifier
IC901LG-0IPRPPY005A Driver IC
IC604ALG-SAA30592817 S/W Firmware450UC,452UC
IC604ALG-SAA30592834 S/W Firmware452UM
C101LG-624-088FCapacitor Film DIP
C103LG-0CZZR00011D Capacitor Unclassified450UC,452UC
C103LG-0CZZR00011B Capacitor Unclassified452UM
C104LG-0CZZR00011D Capacitor Unclassified450UC,452UC
C104LG-0CZZR00011B Capacitor Unclassified452UM
C105LG-0CQ1031Y519 Capacitor Film DIP
C106LG-624-087SCapacitor Unclassified 47PF D 1KV 10% TR B(Y5P)
C108LG-0CN1040K948
C109LG-624-085DCapacitor AL Radial
C111LG-0CG2220U630
C113LG-0CQ1521N409 Capacitor Film DIP
C114LG-0CQ4721N409 Capacitor Film DIP
C121LG-0CE108BD630 Capacitor AL Radial
C122LG-0CE3376D638 Capacitor AL Radial
C123LG-0CE108EF630 Capacitor AL Radial
C124LG-0CE3376D638 Capacitor AL Radial
C126LG-624-085DCapacitor AL Radial
C128LG-0CQ1042K409 Capacitor Film DIP
C153LG-0CE4754K638 Capacitor AL Radial
C154QETC1HM-105Z E CAPACITOR1uF 50V M
C155LG-0CE1076F638 Capacitor AL Radial
C156LG-0CN223AK948
C157LG-0CN223AK948
C201QET61CM-107ZE CAPACITOR100uF 16V M
R102LG-0RS0101K619
R103LG-0RS5602K619
R105LG-0RD0392F608 Resistor Carbon Film
R121QRE141J-102YC RESISTOR1kΩ
R122LG-0RD1200F608 Resistor Carbon Film
R123LG-0RD4702F608 Resistor Carbon Film
R124LG-0RD1800F608 Resistor Carbon Film
R125QRD161J-222YC RESISTOR2.2kΩ
R126QRE141J-102YC RESISTOR1kΩ
R127LG-0RN1001F408 Resistor Metal Film
R128LG-0RN3001F408 Resistor Metal Film
R129LG-874-000TWire Jump
R130LG-0RD1002F608 Resistor Carbon Film
R140QRD161J-221C RESISTOR220Ω