JVC KD-AVX55E User manual

SERVICE MANUAL
COPYRIGHT © 2009 Victor Company of Japan, Limited No.MA454<Rev.001>
2009/6
DVD/CD RECEIVER
MA454<Rev.001>20095SERVICE MANUAL
KD-AVX55E, KD-AVX55EU, KD-AVX55EE,
KD-AVX55A, KD-AVX77J, KD-AVX77E,
KD-AVX77EU, KD-AVX77EE, KD-AVX77A
COPYRIGHT © 2009 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
Only for KD-AVX77
Only for KD-AVX77J
Except KD-AVX77JExcept KD-AVX77J

1-2 (No.MA454<Rev.001>)
SPECIFICATION
KD-AVX77J
AMPLIFIER
Power Output 20 W RMS ×4 Channels at 4 Ωand < or = 1% THD+N
Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Audio Output Level
LINE OUT (FRONT, REAR), CENTER OUT, SUBWOOFER OUT
Line-Out Level/Impedance 5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Color System NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminals Input LINE IN, VIDEO IN, USB input, Antenna input
Output 2nd AUDIO OUT
Others CD changer, OE REMOTE, MIC IN
FM/AM TUNER
Frequency Range FM with channel interval set to 100 kHz or 200 kHz 87.5 MHz to 107.9 MHz
with channel interval set to 50 kHz 87.5 MHz to 108.0 MHz
AM with channel interval set to 10 kHz 530 kHz to 1 710 kHz
with channel interval set to 9 kHz 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 9.3 dBf (0.8 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 40 dB
AM Tuner Sensitivity/Selectivity 20 µV/40 dB
DVD/CD
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
DVD, fs=96 kHz 16 Hz to 44 000 Hz
VCD/CD 16 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
USB
USB Standards USB 2.0 Full Speed
Data Transfer Rate Full Speed Maximum 12 Mbps
Low Speed Maximum 1.5 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current DC 5 V 500 mA
BLUETOOTH
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m (10.9 yd)

(No.MA454<Rev.001>)1-3
Design and specifications are subject to change without notice.
KD-AVX77/KD-AVX55 (Except KD-AVX77J)
Profile HFP (Hands-Free Profile) 1.5
OPP (Object Push Profile) 1.1
A2DP (Advanced Audio Distribution Profile) 1.2
AVRCP (Audio/Video Remote Control Profile) 1.3
MONITOR
Screen Size 5.4 inch wide liquid crystal display
Number of Pixel 576 000 pixels: 800 (horizontal) ×3 (RGB) ×240 (vertical)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System PAL/NTSC
Aspect Ratio 3.32:1 (Super wide)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Storage Temperature -10°C to +60°C (14°F to 140°F)
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W ×H ×D) Installation Size
(approx.)
182 mm ×52 mm ×160 mm (7-3/16” ×2-1/16” ×6-5/16”)
Panel Size (approx.) 188 mm ×58 mm ×12 mm (7-7/16” ×2-5/16” ×1/2”)
Mass (approx.) 2.2 kg (4.9 lbs) (excluding the accessories)
AMPLIFIER
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more
than 0.8% total harmonic distortion
Load Impedance 4 Ω(4 Ωto 8 Ωallowance)
Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz
Level ±10 dB
Signal-to-Noise Ratio 70 dB
Audio Output Level
LINE OUT (FRONT, REAR), CENTER OUT, SUBWOOFER OUT
Line-Out Level/Impedance 5 V/20 kΩload (full scale)
Output Impedance 1 kΩ
Color System NTSC/PAL*
Video Output (composite) 1 Vp-p/75 Ω
Other Terminals Input LINE IN, VIDEO IN, USB input, Aerial input
Output 2nd AUDIO OUT
Others CD changer, OE REMOTE, MIC IN
FM/AM TUNER
Frequency Range FM 87.5 MHz to 108.0 MHz
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 9.3 dBf (0.8 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 40 dB
MW Tuner Sensitivity/Selectivity 20 µV/40 dB

1-4 (No.MA454<Rev.001>)
Design and specifications are subject to change without notice.
LW Tuner Sensitivity 50 µV
DVD/CD
Signal Detection System Non-contact optical pickup (semiconductor laser)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
DVD, fs=96 kHz 16 Hz to 44 000 Hz
VCD/CD 16 Hz to 20 000 Hz
Dynamic Range 93 dB
Signal-to-Noise Ratio 95 dB
Wow and Flutter Less than measurable limit
USB
USB Standards USB 2.0 Full Speed
Data Transfer Rate Full Speed Maximum 12 Mbps
Low Speed Maximum 1.5 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Max. Current DC 5 V 500 mA
BLUETOOTH (KD-AVX77 only)
Version Bluetooth 1.2 certified
Output Power +4 dBm Max. (Power class 2)
Service Area Within 10 m
Profile HFP (Hands-Free Profile) 1.5
OPP (Object Push Profile) 1.1
A2DP (Advanced Audio Distribution Profile) 1.2
AVRCP (Audio/Video Remote Control Profile) 1.3
MONITOR
Screen Size 5.4 inch wide liquid crystal display
Number of Pixel 576 000 pixels: 800 (horizontal) ×3 (RGB) ×240 (vertical)
Drive Method TFT (Thin Film Transistor) active matrix format
Color System PAL/NTSC
Aspect Ratio 3.32:1 (Super wide)
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Storage Temperature -10°C to +60°C
Allowable Operating Temperature 0°C to +40°C
Dimensions (W ×H ×D) Installation Size
(approx.)
182 mm ×52 mm ×160 mm
Panel Size (approx.) 188 mm ×58 mm ×12 mm
Mass (approx.) 2.2 kg (excluding the accessories)

(No.MA454<Rev.001>)1-5
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

1-6 (No.MA454<Rev.001>)
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 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.
1M
Conductive material
(conductive sheet) or iron palate
(caption)
Anti-static wrist strap
Solder short part

(No.MA454<Rev.001>)1-7
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.
REPRODUCTION AND POSITION OF LABELS and PRINT
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL and PRINT

1-8 (No.MA454<Rev.001>)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MA454<Rev.001>)1-9
SECTION 3
DISASSEMBLY
3.1 Main body (Used figure are KD-AVX77E)
3.1.1 Removing the Top chassis with DVD mechanism (See
Fig.1 to 4)
(1) Remove the two screws Aand two screws Battaching the
Heat sink. (See Fig.1)
(2) Remove the one screw Cattaching the Top chassis. (See
Fig.1)
Fig.1
(3) Remove the one screw Dattaching the Top chassis. (See
Fig.2)
Fig.2
(4) Remove the three screws Eattaching the Top chassis.
(See Fig.3)
Fig.3
(5) Remove the two screws Fattaching the Top chassis. (See
Fig.4)
Fig.4
3.1.2 Removing the Main board (See Fig.5 to 10)
(1) Disconnect the card wire from Front chassis connected to
connector CN962 of the Main board. (See Fig.5)
(2) Disconnect the connector wire from Gear bracket unit con-
nected to connector CN881 and CN891 of the Main board.
(See Fig.5)
(3) Remove the two screws Gattaching the Main board. (See
Fig.5)
Fig.5
(4) Remove the two screws Hattaching the Bottom chassis.
(See Fig.6)
Fig.6
BC
A
D
E
F
F
G
G
CN881
CN891
CN962
H

1-10 (No.MA454<Rev.001>)
(5) Remove the two screws Jattaching the Wire bracket. (See
Fig.7)
Fig.7
(6) Disconnect connector wire from Rear bracket connected to
connectors CN861, CN871, CN921, CN922, CN923 and
CN981 of the Main board. (See Fig.8)
Fig.8
(7) Remove the two screws Kattaching the Heat sink. (See
Fig.9)
(8) Remove the one screw Lattaching the Antenna wire. (See
Fig.9)
(9) Remove the one screw Mattaching the USB cable. (See
Fig.9)
Fig.9
(10) Remove the one screw Nattaching the Main board. (See
Fig.10)
Fig.10
3.1.3 Removing the DVD mechanism (See Fig.11)
(1) Remove the three screws Pattaching the DVD mecha-
nism.
Fig.11
J
CN981
CN861CN871 CN823CN921
CN922
LM
K
N
P
PP

(No.MA454<Rev.001>)1-11
3.1.4 Removing the Connection board (See Fig.12)
(1) Disconnect the card wire from DVD mechanism connected
to connector CN395 of the Connection board.
(2) Disconnect the connector wire from BT antenna connected
to connector of RF module.
(3) Remove the three screws Qattaching the Connection
board.
Fig.12
3.1.5 Removing the Panel A control board (See Fig.13)
(1) Remove the six screws Rattaching the Rear cover.
Fig.13
Connector CN395
Q
Q
R
R

1-12 (No.MA454<Rev.001>)
3.2 DVD mechanism assembly section
3.2.1 Removing the Traverse mechanism assembly (See
Fig.1 to 6)
(1) Solder the short land section on the flexible wire of pickup.
(See Fig.1)
Caution:
* Solder the short land section on the flexible wire of pickup
before disconnecting the flexible wire form the connector
CN101 on the Front end board.
If the flexible wire is disconnected without attaching the
solder, the pickup may be destroyed by static electricity.
* When attaching the Traverse mechanism assembly, re-
move the solder from the short land section after connection
the flexible wire to the connector CN101 on the Front end
board.
Fig.1
(2) Voltage supply to TP79 and TP81 approx DC 3.0V until
Clamper is shift to loading complete position. (See Fig.2)
(3) Disconnect the flexible wires from Traverse mechanism assembly
connected to connector CN101 and CN164 of the Front end
board. (See Fig.2)
Fig.2
(4) Remove the five screws Aattaching the Top cover assembly.
(See Fig.3)
Fig.3
(5) From the bottom side, disconnect the connector wire from
Top cover assembly connected to connector CN2 of the
Front end board. (See Fig.4)
Fig.4
(6) From the bottom side, remove the spring from Traverse
mechanism assembly. (See Fig.5)
Fig.5
Solder short part
CENTER
R21
D- DGND_7
R312
R317
WOOFER
TP67
R357
TP79 TP81
TP92
Voltage supply
position
CN164
CN101
TP81
TP79
A
CN2

(No.MA454<Rev.001>)1-13
(7) From the top side, pull up the traverse mechanism and disengage
three dumper positions. (See Fig.6)
Fig.6
3.2.2 Removing the Front end board (See Fig.7)
(1) Remove the Motor wires from loading motor soldered to
TP79 and TP81 of the Front end board.
(2) Remove the two screws Battaching the Front end board.
Fig.7
3.2.3 Removing the Loading arm assembly (See Fig.8)
(1) Remove the Loading arm spring L from Loading arm assembly.
(2) Slide to left side and then disengage hook athen hook b.
Fig.8
3.2.4 Removing the Gear base assembly (See Fig.9, 10)
(1) Remove the Loading arm spring L. (See Fig.9)
Fig.9
Dumper
(same color spring)
Dumper
(Different color spring)
B
B
TP79
TP81
Loading arm
assembly
Loading arm spring L
hook a
hook b
Loading arm
spring L

1-14 (No.MA454<Rev.001>)
(2) Remove the two screws Cattaching the Gear base assembly.
(See Fig.10)
Fig.10
3.2.5 11Removing the Loading arm holder. (See Fig.)
(1) Remove the two screws Dattaching the Loading arm holder.
(2) Remove the Loading arm spring R.
Fig.11
3.2.6 Removing the Loading moor assembly (See Fig.12)
(1) Remove the three screws Eattaching the Loading motor
assembly.
Fig.12
3.2.7 Removing the Slide cam assembly (See Fig.13)
(1) Slide to backward the Slide cam assembly and the remove
the Slide cam spring.
(2) Slide to frontward the slide cam assembly, and then take
out it.
Fig.13
3.2.8 Removing the Photo board (See Fig.14)
(1) Pressing the hook cand then slide to backward (slide to the
arrow side) the Disc plate.
(2) Remove the one screw Fattaching the Photo board.
Fig.14
3.2.9 Removing the Loading motor (See Fig.15 to 18)
(1) Remove the A wheel gear. (See Fig.15)
Fig.15
C
D
Loading arm
spring R
Loading arm
holder
E
Slide cam assembly
Slide cam spring
hook c
hook c
F
Photo board
A Wheel gea
r

(No.MA454<Rev.001>)1-15
(2) Remove the A worm gear, M connect gear and M wheel
gear by sequentially. (See Fig.16)
Fig.16
(3) Remove the two screws Gattaching the Loading motor.
(Se Fig.17)
Fig.17
(4) When attaching the Loading motor, motor wire should arrange
to figure. (See Fig18.)
Fig.18
3.2.10 Removing the Roller assembly (See Fig.19)
(1) Remove the Slit washer.
(2) Remove the R middle gear.
(3) Remove the R connect gear.
(4) Snap off the part aof the Roller assembly.
(5) Lift up the part bof the Roller assembly, and then release
part c(When release part c, R collar R is easy to come off,
does not lose it).
CAUTION:
When reattach the Roller assembly, Middle gear should keep
direction and Slit washer should be change new part.
Fig.19
3.2.11 Removing the Roller (See Fig.20)
(1) Remove the Slit washer.
(2) Pull out the Roller shaft.
CAUTION:
When reattach the Roller shaft, Slit washer should be change
new part.
Fig.20
A worm gear
M connect gear
M wheel gear
G
Wire arrangement
Direction
Slit washer
R connect gear
R collar R
R middle gear
part b
part a
part c
keep direction
slit
small side
keep direction
slit

1-16 (No.MA454<Rev.001>)
SECTION 4
ADJUSTMENT
4.1 Test instruments required for adjustment
(1) Digital oscilloscope (100MHz)
(2) Digital tester
(3) Test Disc
(4) Extension cable : EXTDV002-30P
EXTSH002-22P
EXTAV70X-50PF
(5) Extension stud : STDV001-3P
4.2 Standard measuring conditions
Power supply voltage DC14.4V(10.5 to 16V)
Load impedance 20K ohm (2 Speakers connection)
Output Level Line out 2.5V (Vol. MAX)
4.3 Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
4.4 Dummy load
Exclusive dummy load should be used for AM,and FM.
For FM dummy load, there is a loss of 6dB between SSG
output and antenna input.
The loss of 6dB need not be considered sincedirect reading
of figures are applied in this working standard.
4.5 How to connect the extension cable for adjusting
Caution:
Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power.
If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.
EXTAV70X-50PF
EXTSH002-22P
EXTDV002-30P
Extension stud
STDV001-3P

(No.MA454<Rev.001>)1-17
4.6 Service mode
4.6.1 Service mode 1 (Indication of a service mode 1 is nothing.)
Keep this state more 2 seconds
while continuing pressing the
[STANDBY/ON ATTENUATOR] button
and [TOUCH PANEL EJECT] button
sequentially.
Set an area number in touch panel temporarily.
When an icon is not displayed by a screen, the key input is effective.
NO EJECT?
EMERGENCY EJECT?
*1
*2
Screen indication
Exchanging it operate a menu of a service mode with the [ ] button
and [ ] button. Operate choice of a menu with a [ENTER] button.
*1 : When an [ENTER] button is pushed in NO EJECT indication, it is set
by an EJECT prohibition mode.
When an [ENTER] button is pushed in EJECT OK indication, it is set
by a normal mode.
*2 : Forced EJECT movement
A screen becomes normal indication after an [ENTER] button was pushed.
STANDBY/ON ATTENUATOR button
132
45
TOUCH PANEL AREA
Multiplex push timing chart (Example: Service mode 2)
[STANDBY/ON ATTENUATOR]
[AREA 2]
[AREA 5]
[AREA 1]
Key ON (Hold)
Key ON
Key ON
Key ON
Within 0.5 seconds
Within 2 seconds
Within 2 seconds
Shift to Service Mode 2

1-18 (No.MA454<Rev.001>)
4.6.2 Service mode 2
Set to service mode 2: [STANDBY/ON ATTENUATOR] [AREA 1] [AREA 5] [AREA 2]
Screen indication
SERVICE MODE 2
INITIALIZE ALL
INITIALIZE
INITIALIZE DVD
INITIALIZE BT
TOUCH PANEL CALIBRATION
TOUCH PANEL CHECK MODE
Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
Operate choice of a menu with a [ENT] button.
BACK
ENT
INITIALIZE ALL
NOW
INITIALIZE ALL INITIALIZE ALL
OK **
INITIALIZE ALL (Each EEPROM is initialized by
a factory shipment state.)
* Main micron EEPROM initialization (user entry
domain, error history, speaker setting, subarea
of J-version, data to pre-set )
* Panel micron EEPROM initialization
(picture adjustment data)
* DVD unit EEPROM initialization
(except a permanent domain)
* Bluetooth module EEPROM initialization
* After clear completion, a screen returns to
normal indication after OK indication was
displayed for three seconds.
INITIALIZE
NOW
INITIALIZE INITIALIZE
OK **
INITIALIZE (Initialization of a user area of each
EEPROM)
* Main micron EEPROM initialization (a user
entry domain )
(a user entry domain, speaker setting, subarea
of J-version, data to pre-set )
* Panel micron EEPROM initialization
(picture adjustment data )
* DVD unit EEPROM initialization
(except a permanent domain)
* After clear completion, a screen returns to
normal indication after OK indication was
displayed for three seconds.
INITIALIZE DVD
INITIALIZE DVD
OK **
Full initialization of EEPROM of a DVD unit (It is included a permanent domain).
After clear completion, this indication is continued till an effective key is input.
INITIALIZE BT
INITIALIZE BT
OK **
Full initialization of EEPROM of Bluetooth.
After clear completion, this indication is continued till an effective key is input.
TOUCH PANEL CALIBRATION
Push the center of a + character displayed in turn.
++
+
+
+
TOUCH PANEL CHECK MODE
The confirmation mode that the calibration of the touch panel was performed
definitely.
*Return to previous menu with a [STANDBY/ON ATTENUATOR] button.
++
+
+
+

(No.MA454<Rev.001>)1-19
4.6.3 Service mode 3
SERVICE MODE
VERSION
AREA/REGION
TEMPERATURE
MEMORY CHECK
DVD CHECK MODE
Set to service mode 3: [STANDBY/ON ATTENUATOR] [AREA 1] [AREA 5] [AREA 3]
Screen indication
SERVICE MODE 3
SERVICE MODE
INITIALIZE ALL
RUNNING MODE
BACK
ENT
Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
Operate choice of a menu with a [ENT] button.
* Exchanging it operate a menu
of a service mode with the [ ]
button and [ ] button.
* Operate choice of a menu with
a [ENT] button.
* Return to previous menu with
a [BACK] button.
SERVICE MODE
SERVICE MODE
ERROR READ
ERROR CLEAR
BT VERSION
NOW
INITIALIZE ALL
RUNNING MODE
* See "Running mode" for details.
INITIALIZE ALL
OK **
INITIALIZE ALL
VERSION
MAIN
DISC
CH
PN
SW BT MODULE ***
Micon version indication
Main micon version and ROM correction version
DVD module version
CH version
Panel micon version and ROM correction version
Software version of BT Module
V**** [**]
****
******
V**** V*** [**] V*** ** *
AREA/REGION
SYS-AREA : *
DISC-AREA : **
REGION : *
PANEL AREA :*
Area and region indication
Main micon area
DVD area
Region
PANEL area
ERROR READ
DVD ERROR READ
CH ERROR READ
MECHA ERROR READ
READ ALL
DVD ERROR READ
Reading of a DVD unit error history
ERROR CLEAR
DVD ERROR CLEAR
CH ERROR CLEAR
MECHA ERROR CLEAR
Clear of each error history
A screen returns to following
indication after clear completion.
BT VERSION
SW BT CORE ***
HW BT MODULE ***
SW BT MODULE ***
ADR-************
Bluetooth version indication
Software version of BT core
Hardware version of BT Module
Software version of BT Module
BT Address
INITIALIZE ALL (Each EEPROM is initialized by
a factory shipment state.)
* Main micon EEPROM initialization
(user entry domain, error history, speaker
setting, subarea of J-version, data to pre-set )
* Panel micon EEPROM initialization
(picture adjustment data)
* DVD unit EEPROM initialization
(except a permanent domain)
* Bluetooth module EEPROM initialization
* After clear completion, a screen returns to
normal indication after OK indication was
displayed for three seconds.
TEMPERATURE Temperature data reading
* Temperature data by the temperature sensor in the main micon and DVD-PCB is
read every 5 seconds and displayed in hex numbers.
MEMORY CHECK ( It is displayed only at the time of the disc insertion )
Memory residual quantity indication mode
* Data residual quantity of a disc is displayed by LCD.
* About the playback control-related key ([FSKIP], [BSKIP], [UP], [DOWN], [VOL]),
only movement is effective.
Indication does not change as memory residual quantity indication.
* About cancellation of this mode, press the [STANDBY/ON ATTENUATOR] button.
DVD CHECK MODE
* See "DVD CHECK MODE" for details.
READ ALL *Only the engineer use
Reading of a main micon EEPROM (All contents)
MECHA ERROR READ
Reading of a door mechanism error history
CH ERROR READ
Reading of a CD changer error history

1-20 (No.MA454<Rev.001>)
4.6.4 Service mode 4
4.7 DVD check mode
Command Mechanism unit operation Indication contents
NORMAL PLAY Start at normal speed
(After start, jitter is measured by an inner position)
Laser current value, jitter value
EF OUT-TRACKING OFF Tracking off the outermost position of CD For EF phase error
EF IN-TRACKING OFF Tracking off the innermost position of CD For EF phase error
CD-LASER ON CD_LD lights and laser current is displayed Laser current value, jitter value
DVD-LASER ON DVD_LD lights and laser current is displayed Laser current value, jitter value
DVD×1 JITTER MODE DVD ×1 jitter measuring mode
(for use in mechanism adjustment)
Laser current value, jitter value
EEPROM DATA DISP Contents of EEPROM is displayed EEPROM address
EEPROM contents
EEPROM DATA CLEAR Contents of EEPROM is initialized EEPROM address
EEPROM contents
TEMPERATURE Temperature indication Temperature is displayed in hex numbers
SEARCH & JITTER The search and jitter measurement to an appointed
position of DVD
Position measured with VT-501
jitter value
MONITOR Monitor terminal setting
DVD×1 PLAY DVD ×1 stopped start
(After start, jitter is measured by an inner position)
Not displayed
STOP Disc stopped, LD-OFF Not displayed
EJECT EJECT Not displayed
LOAD LOADING Not displayed
MONITOR S MODE
R/W CHROMA
DATA CLEAR
*See "Monitor adjustment" for details.
CHROMA DATA read/write of NTSC/PAL signal processing IC
Clear of CHROMA DATA (return to an initial value)
Set to service mode 4: [STANDBY/ON ATTENUATOR] [AREA 1] [AREA 5] [AREA 4]
Screen indication
SERVICE MODE 4
RDS MODE
MONITOR S MODE
HD RADIO S MODE
BACK
ENT
Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
Operate choice of a menu with a [ENT] button.
RDS MODE
* RDS service mode (Only RDS model)
HD RADIO S MODE
* It is displayed in HD Radio unit connection.
Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
Operate choice of a menu with a [ENT] button.
DVD CHECK MODE
NORMAL PLAY
EF OUT-TRACKING OFF
EF IN-TRACKING OFF
CD-LASER ON
DVD-LASER ON
DVDx1 JITTER MODE
DVD CHECK MODE
EEPROM DATA DISP
EEPROM DATA CLEAR
TEMPERATURE
SEARCH & JITTER
MONITOR
DVDx1 PLAY
DVD CHECK MODE
STOP
EJECT
LOAD