JVC KS-FX511, KS-FX711 Service Manual
KS-FX711/KS-FX511
SERVICE MANUAL
CASSETTE RECEIVER
KS-FX711/KS-FX511
KS-FX711
Contents
LOUD
SEL
D
I
SP
7
CD CHANGER CONTROL
MO
10
9
8
KS-FX511
LOUD
SEL
D
I
SP
7
CD CHANGER CONTROL
MO
10
9
8
Safety precaution
Disassembly method
Adjustment method
Description of major ICs
11 12
RPT
11 12
RPT
KS-FX711
TAP
E
FM/AM
Multi
Music
Scan
RND
MODE
KS-FX511
Multi
Music
Scan
RND
MODE
SS
M
CDCH
SCM
TAP
E
FM/AM
SS
M
CDCH
SCM
Area Suffix
U Other areas
1-2
1-3
1-18
1-22
COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.
No.49713
Mar. 2002
KS-FX711/KS-FX511
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.
1-2
Disassembly method
<Main body>
Removing the front panel assembly
(See Fig.1)
1.
Press the eject button in the lower right part of the
front panel. Remove the front panel assembly from
the body.
KS-FX711/KS-FX511
Front panel assembly
Eject button
Fig.1
Removing the front chassis assembly
(See Fig.2 and 3)
Prior to performing the following procedure, remove
the front panel assembly.
1.
Release the four joint tabs a on both sides of the
front chassis assembly and remove the front chassis
assembly toward the front.
Tab a
Tab a
Front chassis assembly
Heat sink
Fig.2
Tab a
Fig.3
Tab a
Front chassis
assembly
1-3
KS-FX711/KS-FX511
Removing the heat sink (See Fig.4)
1.
Remove the three screws A on the left side of the
body.
Removing the bottom cover
(See Fig.5 and 6)
Prior to performing the following procedure, remove
the front panel assembly, the front chassis assembly
and the heat sink.
1.
Turn over the body and unjoint the four joints b and
joints c with the bottom cover and the body using a
screwdriver.
CAUTION:
When disengaging the joint c using a
screwdriver, do not damage or break the
board.
AA
Joints b
Joint c
Bottom cover
Heat sink
Fig.4
Bottom cover
Joints b
Rear panel
Fig.5
Joints c
1-4
Joints b
Joint c
Rear panel
Fig.6
KS-FX711/KS-FX511
Removing the main board
(See Fig.7)
Prior to performing the following procedure, remove
the front panel assembly, the front chassis assembly,
the heat sink and the bottom cover.
1.
Remove the screw B, the five screws C and the two
screws D attaching the rear bracket on the back of
the body. Remove the rear bracket.
D
Rear bracket
E
Removing the main amplifier board assembly
(See Fig.8)
Fig.7
CC
Main board
B
C
D
E
Prior to performing the following procedure, remove
the front chassis, the heat sink, bottom cover and the
rear panel.
1.
Remove the two screws E attaching the main
amplifier board assembly on the top cover.
2.
Disconnect connector CP701 on the main amplifier
board assembly from the cassette mechanism
assembly.
Cassette mechanism assembly
F
Removing the cassette mechanism assembly
(See Fig.9)
Prior to performing the following procedure, remove
the front chassis, the heat sink, bottom cover and the
main amplifier board assembly.
1.
Remove the four screws F attaching the cassette
mechanism assembly from the top cover.
CN701
Fig.8
F
Top chassis
FF
Fig.9
1-5
KS-FX711/KS-FX511
Removing the control switch board
(See Fig.10 to 12)
Prior to performing the following procedure, remove
the front panel assembly.
1.
Remove the four screws G attaching the rear cover
on the back of the front panel assembly.
2.
Unjoint the eleven joints d with the front panel and
the rear cover.
3.
Remove the control switch board on the back of the
front panel.
Joints d
G
G
Front panel
Rear cover
Fig.10
Joints d
G
G
Joints d
Front panel
Rear cover
Joints d
Fig.11
Control switch board
Fig.12
1-6
KS-FX711/KS-FX511
REFERENCE:
Prior to performing the following
procedures, turn the mode gear on the
bottom of the body until the respective part
comes to the EJECT position (Refer to
Fig.1).
Removing the cassette guide (See Fig.2)
1.
Turn the mode gear to set to RVS play or
subsequent mode.
2.
Remove the cassette guide from the main chassis
while releasing each two joint tabs a in the direction
of the arrow.
Mode gear
Fig.1
Cassette guide
Removing the load arm (See Fig.3)
1.
Remove the E-washer attaching the load arm.
2.
Move the load arm in the direction of the arrow and
release the joint b on the cassette catch.
Load arm
E-washer
Tab a
Joint b
Tab a
Fig.2
Fig.3
1-7
KS-FX711/KS-FX511
Removing the cassette hanger assembly /
cassette holder (See Fig.4 to 7)
1.
Check the mode is set to EJECT. Push down the
front part of the cassette holder and move in the
direction of the arrow to release the joint c.
2.
Move the rear part of the cassette hanger assembly
in the direction of the arrow to release it from the two
joint bosses d.
3.
Release the holder stabilizer spring from the hooks e
and f, then pull out from the cassette hanger
assembly.
4.
Bring up the rear side of the cassette hanger
assembly to release the joint g and h.
5.
Pull out the cassette catch from the cassette hanger
assembly.
Cassette holder assembly
Side bracket
Joints c
Cassette holder assembly
Cassette stabilizer spring
Fig.4
Boss d
Cassette hanger assembly
Cassette hanger
assembly
Boss d
Cassette holder
assembly
Hook g
Fig.6
Hook f
Hook e
Fig.5
Cassette hanger assembly
Cassette catch
Cassette holder assembly
Cassette hanger assembly
Hook h
Fig.7
1-8
KS-FX711/KS-FX511
Removing the side bracket assembly
(See Fig.8 to 10)
1.
Remove the screw A attaching the side bracket
assembly.
2.
Detach the front side of the side bracket assembly
upward and pull out forward to release the joint i and
j in the rear.
CAUTION:
CAUTION:
When reassembling, make sure that the
boss k of the main chassis is set in the
notch of the load rack under the side
bracket assembly. Do not reattach the
load rack on the boss k.
After reattaching the side bracket
assembly, confirm operation.
Side bracket assembly
Joint i
Joint j
A
Side bracket assembly
Fig.8
Side bracket assembly
Joint i
Joint j
Load rack
Load rack
Boss k
Boss k
Fig.9
Fig.10
1-9
KS-FX711/KS-FX511
Removing the pinch arm (F) assembly
(See Fig.11 and 12)
1.
Remove the polywasher and pull out the pinch arm
(F) assembly.
2.
Remove the compulsion spring.
Removing the pinch arm (R) assembly
(See Fig.11 and 13)
1.
Remove the polywasher and pull out the pinch arm
(R) assembly.
Removing the slide chassis assembly
(See Fig.14 and 15)
Polywasher
Pinch arm
(R) assembly
Polywasher
Compulsion spring
Fig.11
Pinch arm
(F) assembly
Pinch arm (F) assembly
Polywasher
REFERENCE:
It is not necessary to remove the head
and the tape guide.
1.
Move the slide chassis assembly in the direction of
the arrow to release the two joints l and remove from
the main chassis.
2.
Remove the rack link.
CAUTION:
When reassembling, first reattach the rack
link, and next fit the boss m and hook n of
the slide chassis assembly to the hole of
the main chassis, and engage the two joints
l.
Rack link
Fig.12
Boss m
Pinch arm
(R) assembly
Fig.13
Head
Hook n
Polywasher
Tape guide
Joint l
Slide chassis assembly
1-10
Fig.14
Joint l
Fig.15
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