SERVICE MANUAL
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.MA191
2005/6
CD / SD RECEIVER
MA191
2005
6
KD-AR8500,KD-SHX850
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
Area suffix
J ------------- Northern America
ARSENAL rogo
KD-AR8500 J
KD-SHX850 J
MENU
PICT
SOURCE
DISP
BACK
BAND
MENU
PICT
SOURCE
DISP
BACK
BAND
1-2 (No.MA191)
SPECIFICATION
· Design and specifications are subject to change without notice.
· Microsoft and Windows Media are either registered trademarks or trademarks of Microsoft Corporation in the United States and/
or other countries.
· SD logo is a trademark.
AUDIO AMPLIFIER SECTION
Power Output
35 W RMS
× 4 Channels at 4 and [< or =] 1% THD+N
Signal-to-Noise Ratio
85 dBA (reference: 1 W into 4
)
Load Impedance
4
(4 to 8 allowance)
Equalizer Control Range
Frequencies : Graphic EQ
63 Hz, 125 Hz, 250 Hz, 500 Hz, 1 kHz, 2 kHz, 4 kHz, 8 kHz, 12.5 kHz (9 bands)
Frequencies : Parametric EQ
3 bands (Band 1/2/3)20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz,
100 Hz,125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz,
630 Hz,800 Hz, 1 kHz, 1.2 kHz, 1.6 kHz, 2 kHz, 2.5 kHz, 3.2 kHz,
4 kHz,5 kHz, 6.3 kHz, 8 kHz, 10 kHz, 12.5 kHz, 16 kHz, 20 kHz
(31 frequencies)
Level
±10 dB
Frequency Response
40 Hz to 20 000 Hz
Line-In Level/Impedance
LINE IN
1.5 V/20 k
load
Line-Out Level/Impedance
LINE OUT
5.0 V/20 k
load (full scale)
Output Impedance
1 k
Power Supply Unit
DC/DC converter
Other Terminals
SUBWOOFER OUT, Changer control, Steering wheel remote input
TUNER SECTION
Frequency Range
FM
87.5 MHz to 107.9 MHz (with channel interval set to 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM
530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner
Usable Sensitivity
11.3 dBf (1.0
µV/75 )
50 dB Quieting Sensitivity
16.3 dBf (1.8
µV/75 )
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response
40 Hz to 15 000 Hz
Stereo Separation
35 dB
Capture Ratio
1.5 dB
AM Tuner
Sensitivity
20
µV
Selectivity
65 dB
CD/SD PLAYER SECTION
Type
Compact disc player
Signal Detection System
Non-contact optical pickup (semiconductor laser)
Number of Channels
2 channels (stereo)
Frequency Response
5 Hz to 20 000 Hz
Dynamic Range
98 dB
Signal-to-Noise Ratio
102 dB
Wow and Flutter
Less than measurable limit
MP3 (MPEG Audio Layer 3)
Max. Bit Rate
320 kbps
WMA (Windows Media Audio) Max. Bit Rate
192 kbps
Playable SD Card
Format
FAT 12/16
Storage
Up to 512 MB
Playable Audio Format for SD Card
MP3/WMA
GENERAL
Power Requirement
Operating Voltage
DC 14.4 V (11 V to 16 V allowance)
Grounding System
Negative ground
Allowable Operating Temperature
0
°C to +40°C (32°F to 104°F)
Dimensions (W
× H × D)
Installation Size (approx.)
182 mm
× 52 mm × 159 mm (7-3/16" × 2-1/16" × 6-5/16")
Panel Size (approx.)
188 mm
× 58 mm × 13 mm (7-7/16" × 2-5/16" × 9/16")
Mass (approx.)
1.7 kg (3.8 lbs) (excluding accessories)
(No.MA191)1-3
SECTION 1
PRECAUTIONS
1.1
Safety Precautions
!
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.
!
Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.
1-4 (No.MA191)
1.2
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.
1.2.1
Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD 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.
(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.
1.3
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.
1.4
Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the CD pickup unit.
· Apply solder to the short land before the flexible wire is disconnected from the connector on the CD pickup unit.
(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)
· In the assembly, be sure to remove solder from the short land after connecting the flexible wire.
1M
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
CN601
Short sections
Flexible wire
Mechanism control board
(No.MA191)1-5
1.5
Important for laser products
1.CLASS 1 LASER PRODUCT
2.DANGER : Invisible laser radiation when open and inter
lock failed or defeated. Avoid direct exposure to beam.
3.CAUTION : There are no serviceable parts inside the
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION : The CD,MD and DVD player uses invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
REPRODUCTION AND POSITION OF LABELS
!
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL
CAUTION : Visible and Invisible
laser radiation when open and
interlock
failed
or
defeated.
AVOID DIRECT EXPOSURE TO
BEAM.
(e)
VARNING
:
Synlig
och
osynling laserstrålning när
den öppnas och spärren är
urkopplad.
Betrakta
ej
strålen.
(s)
VARO : Avattaessa ja suojalukitus
ohitettuna tai viallisena olet alttiina
näkyvälle
ja
näkymättömälle
lasersäteilylle.
Vältä
säteen
kohdistumista suoraan itseesi. (f)
ADVARSEL : Synlig og usynlig
laserstråling når maskinen er
åben eller interlocken fejeler.
Undgå direkte eksponering til
stråling.
(d)
CLASS 1
LASER PRODUCT