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SERVICE MANUAL
CD RECEIVER
No.49645
Jun. 2001
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
KD-SH99R
KD-SH99R
Area Suffix
Contents
Safety precaution
Preventing static electricity
Disassembly method
Adjustment method
Flow unit reading TOC
of CD/CD-R/CD-RW
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
1- 2
1- 3
1- 4
1-15
1-18
1-20
1-20
1-21~45
E ------- Continental Europe
EX ----- Central Europe
Detachable
ANGLE
RM-RK100
EQ
CD
FM
AM
CH
AUX
SEL
VOLUME
R D
ATT
MC-Service


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KD-SH99R
1-2
!
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.
Safety precaution
!
Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check.


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KD-SH99R
1-3
Front bracket
CD mechanism
control board
Damper bracket
CD mechanism ass'y
FD screw
Feed motor ass'y
FD gear
Pickup unit
Preventing static electricity
1.Grounding to prevent damage by 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.
2.About the earth processing for the destruction prevention 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.
2-1 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.
2-2 Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
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.
4.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
Soldering
Attention when traverse unit is decomposed
1.Solder is put up before the card wire is removed from connector on
the CD substrate as shown in Figure.
(When the wire is removed without putting up solder, the CD pick-up
assembly might destroy.)
2.Please remove solder after connecting the card wire with
when you install picking up in the substrate.
*Please refer to "Disassembly method" in the text for pick-up and how to
detach the substrate.
MC-Service


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KD-SH99R
1-4
Press the release button in the lower right part of the
front panel assembly to unlock.
Remove the front panel assembly in the direction of
the arrow.
1.
2.
Disassembly method
Removing the front panel assembly
(See Fig.1)
Turn on power.
Press the eject button in the upper left part of the
front panel assembly to move the assembly as
shown in Fig.2 and turn off power.
Remove the two screws A on the upper side of the
body.
1.
2.
Removing the top chassis
(See Fig.2 to 6)
Fig.1
Fig.2
Front panel assembly
Release button
Front panel assembly
Eject button
Top chassis
Fig.3
Front panel assembly
Top chassis
A
A


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KD-SH99R
1-5
Remove the three screws B
on both sides of the
body.
Remove the screw C and the three screws D on the
left side of the body.
Remove the two screws E and the screw F on the
back of the body.
Move the top chassis upward and remove it with the
CD mechanism assembly. The connector on the CD
mechanism
assembly
is
disconnected
from
connector CN601 on the main board.
3.
4.
5.
6.
Fig.6
Fig.4
Fig.5
BB
Top chassis
Top chassis
B
D
C
E
F
Heat sink
MC-Service