JVC KD-S711R, KD-S713R Service Manual
KD-S713R/KD-S711R
SERVICE MANUAL
CD RECEIVER
KD-S713R / KD-S711R
E Continental Europe
Area Suffix
Difference piont
KD-S713R
KD-S711R
Contents
Safety preccaution
Preventing static electricity
Disassembly method
Adjustment method
Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
LCD back light
AMBER
GREEN
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
Control buttons
AMBER
GREEN
SCM buttons
GREEN
RED
1-2
1-3
1-4
1-9
1-10
1-11
1-11
1-12~25
No.49603
Jun. 2001
KD-S713R/KD-S711R
Safety precaution
!
!
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.
1-2
KD-S713R/KD-S711R
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.
(caption)
Anti-static wrist strap
Conductive material
(conductive sheet) or iron plate
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
CD mechanism ass’y
Damper bracket
Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to
detach the substrate.
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.
Front bracket
Feed motor ass’y
FD screw
CD mechanism
control board
Soldering
FD gear
Pickup unit
1-3
KD-S713R/KD-S711R
Disassembly method
Removing the front chassis (See Fig.1)
1.
Insert a screwdriver to the joints a on the side of
the front chassis and two joints b on the right
side, then detach the front chassis toward the
front side.
Removing the heat sink (See Fig.2)
1.
Remove the three screws A attaching the heat
sink on the left side of the body, and remove the
heat sink.
ab
ab
Front chassis
Fig. 1
A
A
Removing the bottom cover (See Fig.3)
1.
Turn the body upside down.
2.
Insert a screwdriver to the two joints c and two
joints d on the both sides of the body and the
joint e on the back of the body, then detach the
bottom cover from the body.
A
Fig. 2
c
d
e
Fig. 3
1-4
KD-S713R/KD-S711R
Removing the main board
(See Fig.4 and 5)
1.
Remove the front chassis.
2.
Remove the bottom cover.
3.
Remove the two screws B attaching the main
board on the bottom of the body.
4.
Remove the three screws C attaching the main
board on the back of the body.
5.
Disconnect the connector CN501 from the CD
mechanism assembly.
C
B
CN501 Main board
B
Fig. 4
Removing the CD mechanism assembly
(See Fig.6)
1.
Remove the front chassis.
2.
Remove the bottom cover.
3.
Remove the main board.
4.
Remove the three screws D attaching the CD
mechanism assembly from the top cover.
Removing the front board
(See Fig.7 and 8)
1.
Remove the front chassis.
2.
Remove the four screws E attaching the rear
cover on the back of the front panel unit.
3.
Remove the front board from the front panel unit.
D
Fig. 5
CD mechanism assembly
C
D
D
Fig. 6
Top cover
EE
EE
Fig. 7
Fig. 8
1-5
KD-S713R/KD-S711R
<CD mechanism section>
Removing the CD mechanism control
board (See Fig.1 and 2)
1.
Unsolder the part a and b on the CD mechanism
control board.
2.
Remove the stator fixing the CD mechanism control
board and the damper bracket (To remove the stator
smoothly, pick up the center part).
3.
Remove the screw A attaching the CD mechanism
control board.
4.
Remove the CD mechanism control board in the
direction of the arrow while releasing it from the two
damper bracket slots d and the front bracket slot e.
5.
Disconnect the flexible wire from connector on the
pickup unit.
ATTENTION:
Turn the FD gear in the direction of the
arrow to move the entire pickup unit to
the appropriate position where the
flexible wire of the CD mechanism unit
can be disconnected easily.
(Refer to Fig.2)
CD mechanism assembly
D
h
Front bracket
Pickup unit
Damper bracket
D
A
Fig.1
e
b
Flexible wire
a
h
c
D
d
CD mechanism
control board
Shift the lock
Removing the loading motor
(See Fig.3 to 5)
Prior to performing the following procedure, remove
the CD mechanism control board.
1.
Remove the two springs f attaching the CD
mechanism assembly and the front bracket.
2.
Remove the two screws B and the front bracket
while pulling the flame outward.
3.
Remove the belt and the screw C from the loading
motor.
Loading motor
C
FD gear
f
B
Loading motor
Pull outward
Fig.2
CD mechanism control board
f
B
Front bracket
Fig.3
Front bracket
Pull outward
1-6
Fig.5
Belt
Flame
Fig.4
KD-S713R/KD-S711R
Removing the CD mechanism assembly
(See Fig.1, 6 to 9)
Prior to performing the following procedure, remove
the CD mechanism control board and the front
bracket (loading motor).
1.
Remove the three screws D and the damper
bracket.
2.
Raise the both sides fix arms and move the fix plates
in the direction of the arrow to place the four shafts g
as shown in Fig.8 and 9.
3.
Remove the CD mechanism assembly and the two
springs h attaching the flame.
4.
Remove the two screws E and both sides rear
damper brackets from the dampers. Detach the CD
mechanism assembly from the left side to the right
side.
ATTENTION:
The CD mechanism assembly can be
removed if only the rear damper
bracket on the left side is removed.
CD mechanism
h
Front bracket
CD mechanism
D
Flame
assembly
D
assembly
h
D
Damper bracket
D
A
Fig.1
e
b
Damper bracket
D
Fig.6
a
h
c
D
d
CD mechanism
control board
h
g
Fix arm (R)
Fix plate (L)
E
D
Fig.7
Rear damper bracket
E
g
Fig.8
Rear damper bracket
Fix plate(R)
Fix arm (L)
Damper
Damper
g
g
Fig.9
1-7
KD-S713R/KD-S711R
Removing the feed motor assembly
(See Fig.10)
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor) and the CD mechanism assembly.
1.
Remove the two screws F and the feed motor
assembly.
Removing the pickup unit
(See Fig.10 and 11)
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor), the CD mechanism assembly and
the feed motor assembly.
1.
Detach the FD gear part of the pickup unit upward.
Then remove the pickup unit while pulling out the
part i of the FD screw.
Feed motor assembly
F
FD gear
Nut push spring plate
FD screw
Pickup unit
Fig.10
Part i
Part j
Pickup unit
G
Pickup mount nut
Pickup unit
ATTENTION:
2.
Remove the screw G attaching the nut push spring
plate and the pickup mount nut from the pickup unit.
Pull out the FD screw.
When reattaching the pickuap unit,
reattach the part j of the pickup unit,
then the part i of the FD screw.
Removing the spindle motor
(See Fig.12 and 13)
Prior to performing the following procedure, remove
the CD mechanism control board, the front bracket
(loading motor), the CD mechanism assembly and
the feed motor assembly.
1.
Turn up the CD mechanism assembly and remove
the two springs k on both sides of the clamper arms.
Open the clamper arm upward.
2.
Turn the turn table, and remove the two screws H
and the spindle motor.
k
FD screw
Spindle motor
Fig.11
k
Fig.12
H
1-8
H
Fig.13
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