JVC KW-XC88 User manual
SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited No.MA099
2004/8
CD/CASSETTE RECEIVER
MA09920048
KW-XC88
TABLE OF CONTENTS
1 PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32
Area suffix
UN --------------------------Asean
MODE EX
TAPE
1
7
2
8
3
9
4
10
5
11
6
12
DISP
AUX
SEL EQ
LV PROG
+10
10
CD / CH
FM / AM
TAPE / AUX
CD
KW-XC88
CD/CASSETTE RECEIVER
45Wx4
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TEL 13942296513 QQ 376315150 892498299
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1-2 (No.MA099)
SPECIFICATION
Design and specifications subject to change without notice.
AUDIO AMPLIFIER SECTION
Maximum Power Output Front 45 W per channel
Rear 45 W per channel
Continuous Power Output
(RMS)
Front 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total har-
monic distortion.
Rear 17 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total har-
monic distortion.
Load Impedance 4 Ω(4 to 8 Ωallowance)
Equalizer Control Range LOW ±12 dB (50 Hz, 80 Hz, 120 Hz)
MID ±12 dB (700 Hz, 1 kHz, 2 kHz)
HIGH ±12 dB (8 kHz, 12 kHz)
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-In level/Impedance Auxiliary input jack (3.5 mm dia. stereo mini jack)
Line-Out Level/Impedance 2.0 V/20 kΩload (full scale)
Output Impedance 1 kΩ
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 35 dB
Capture Ratio 1.5 dB
AM Tuner Sensitivity 20 µV
Selectivity 35 dB
CD 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 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
CASSETTE DECK SECTION
Wow and Flutter 0.1 % (WRMS)
Fast-Wind Time 100 sec. (C-60)
Frequency Response 30 Hz to 16 000 Hz (Normal tape)
Signal-to-Noise Ratio
(Normal tape)
Dolby B NR ON 65 dB
Dolby B NR OFF 56 dB
Stereo Separation 40 dB
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Working Temperature 0ºC to +40ºC
Dimensions (W ×H ×D) Installation Size 178 mm ×100 mm ×150 mm
Front Panel Size 170 mm ×96 mm ×20 mm
Mass 2.2 kg (excluding accessories)
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TEL 13942296513 QQ 376315150 892498299
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(No.MA099)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.
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TEL 13942296513 QQ 376315150 892498299
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1-4 (No.MA099)
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
Pickup
Short-circuit point
(Soldering)
Flexible wire
Pickup
Short-circuit point
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TEL 13942296513 QQ 376315150 892498299
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(No.MA099)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
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TEL 13942296513 QQ 376315150 892498299
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1-6 (No.MA099)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
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TEL 13942296513 QQ 376315150 892498299
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(No.MA099)1-7
SECTION 3
DISASSEMBLY
3.1 Main body
3.1.1 Removing the front panel assembly
(See Fig.1, 2)
(1) From the both side of the main body, remove the four
screws Aattaching the front panel assembly. (See Figs.1,
2)
(2) Release the four joints ausing a screwdriver, then remove
the front panel assembly toward the front. (See Figs.1, 2)
Fig.1
Fig.2
3.1.2 Removing the rear bracket
(See Figs.3)
• Prior to performing the following procedure, remove the front
panel assembly as required.
(1) From the back side of the main body, remove the ten
screws B, screw Cand screw Dattaching the rear bracket.
(2) Take out the rear bracket.
Fig.3
3.1.3 Removing the heat sink
(See Fig.4)
• Prior to performing the following procedure, remove the front
panel assembly as required.
(1) From the left side of the main body, remove the two screws
Eand three screws Fattaching the heat sink.
Fig.4
A
A
Front panel assembly
Joints a
A
A
Joints a
Front panel assembly
BD
B
B
Rear braket
BC
FFE
F
Heat sink
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TEL 13942296513 QQ 376315150 892498299
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1-8 (No.MA099)
3.1.4 Removing the top chassis assembly and bottom chassis assembly
(See Fig.5 to 7)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket and heat sink.
(1) From the back side of the main body, disconnect the card
wire from the connector CN702 on the main board in the
top chassis assembly. (See Fig.5)
(2) From the both side of the main body, remove the three
screws Gattaching the bottom chassis assembly. (See
Figs.6, 7)
(3) Release the four joints busing a screwdriver, and then re-
move the top chassis assembly upward from the bottom
chassis assembly. (See Figs.6, 7)
Fig.5
Fig.6
Fig.7
3.1.5 Removing the main board
(See Fig.8)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, top chassis assembly
and bottom chassis assembly.
(1) From the bottom side of the top chassis assembly, remove
the three screws Hattaching the main board.
(2) Disconnect the connector CN601 on the main board, and
take out the main board from the top chassis assembly.
Reference:
When attaching the main board, joint the hole of the main
board in joint cof the top chassis assembly.
Fig.8
CN702
Card wire Main board
Top chassis assembly
Bottom chassis assembly
G
Joints b
G
Top chassis assembly
Bottom chassis assembly
Joints b
G
CN601
Main board
H
H
H
Top chassis assembly
Joints c
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TEL 13942296513 QQ 376315150 892498299
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3.1.6 Removing the CD mechanism assembly
(See Fig.9)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, top chassis assembly,
main board and CD mecha control board.
(1) Remove the three screws Jattaching the CD mechanism
assembly to the top chassis assembly.
Reference:
When attaching the CD mechanism assembly, joint the hole of
the CD mechanism assembly in boss dand boss eof the top
chassis assembly.
Fig.9
3.1.7 Removing the changer control board
(See Fig.10, 11)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, top chassis assembly
and bottom chassis assembly.
(1) From the back side of the bottom chassis assembly, dis-
connect the card wire from the connector CN972 on the
changer control board. (See Fig.10)
(2) From the top side of the bottom chassis assembly, remove
the two screws Kattaching the changer control board. (See
Fig.11)
Reference:
When attaching the changer control board, joint the hole of the
changer control board in joints fof the bottom chassis assem-
bly.
Fig.10
Fig.11
J
JJ
CD mechanism assembly
Boss eBoss d
Top chassis assembly
CN972
Card wire
Changer control board
Bottom chassis assembly
K
Changer control board
Bottom chassis assembly
K
Joints f
Cassette mechanism assembly
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TEL 13942296513 QQ 376315150 892498299
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1-10 (No.MA099)
3.1.8 Removing the mecha control board
(See Fig.12)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, bottom chassis as-
sembly and changer control board.
(1) From the back side of the bottom chassis assembly, re-
move the screw Lattaching the mecha control board, and
release the joints gfrom the bottom chassis assembly.
(2) Disconnect the wire from the connector CJ402 and the
card wire from the connector CN403 on the mecha control
board.
Reference:
When attaching the mecha control board, joint the hole of the
mecha control board in joints iof the bottom chassis assembly.
Fig.12
3.1.9 Removing the cassette mechanism assembly
(See Fig.13)
• Prior to performing the following procedures, remove the front
panel assembly, rear bracket, heat sink, bottom chassis as-
sembly, changer control board and mecha control board.
(1) From the bottom side of the bottom chassis assembly, re-
move the four screws Mattaching the cassette mechanism
assembly to the bottom chassis assembly.
Fig.13
3.1.10 Removing the LCD board
(See Fig.14)
• Prior to performing the following procedures, remove the front
panel assembly.
(1) From the back side of front panel assembly, remove the
twelve screws Nattaching the LCD board, and then turn
over the LCD board.
(2) From the reverse side of LCD board, remove the solders
from the soldered points hattaching the wire.
Fig.14
L
Top chassis assembly Mecha control board
Joints g
CN403CJ402
M
Cassette mechanism assembly
Bottom chassis assembly
M
Front panel assembly
LCD board Solder points h
NN
NN
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TEL 13942296513 QQ 376315150 892498299
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(No.MA099)1-11
3.1.11 Removing the switch board
(See Fig.15)
• Prior to performing the following procedures, remove the front
panel assembly.
(1) From the back side of front panel assembly, remove the
five screws Pattaching the switch board.
(2) Release the claws iattaching the switch board, and then
turn over the switch board.
(3) From the reverse side of switch board, remove the solders
from the soldered points jattaching the wire.
Fig.15
P
Front panel assembly
Switch board
P
Claws i
Solder points j
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TEL 13942296513 QQ 376315150 892498299
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1-12 (No.MA099)
3.2 CD mechanism section
3.2.1 Removing the CD mechanism control board
(See Fig.1 and 2)
(1) Unsolder the part a and bon 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 Aattaching 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 dand 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 en-
tire pickup unit to the appropriate position where the flexible
wire of the CD mechanism unit can be disconnected easi-
ly.(Refer to Fig.2)
Fig.1
Fig.2
Front bracket
CD mechanism
control board
Damper bracket
h
c
d
b
a
DD
D
CD mechanism assembly
Ae
h
Shift the lock
Flexible wire
Pickup unit
FD gear
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TEL 13942296513 QQ 376315150 892498299
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(No.MA099)1-13
3.2.2 Removing the loading motor
(See Fig.3 to 5)
• Rrior to performing the following procedure, remove the CD
mechanism control board.
(1) Remove the two springs fattaching the CD mechanism as-
sembly and the front bracket.
(2) Remove the two screws Band the front bracket while pull-
ing the flame outward.
(3) Remove the belt and the screw Cfrom the loading motor.
Fig.3
Fig.4
Fig.5
CD mechanism control board
Loading motor Front bracket
f
B
f
Front bracket
Pull outward Pull outward
Flame
C
Loading motor
Belt
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
1-14 (No.MA099)
3.2.3 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 mo-
tor).
(1) Remove the three screws Dand 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 gas shown in
Fig.8 and 9.
(3) Remove the CD mechanism assembly and the two springs
hattaching the flame.
(4) Remove the two screws Eand both sides rear damper
brackets from the dampers. Detach the CD mechanism as-
sembly 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.
Fig.6
Fig.7
Fig.8
Fig.9
DD
Damper bracket
CD mechanism assembly
Flame h
h
D
D
Fix plate (L)
g
g
Rear damper bracket
Fix arm (L)
Damper
E
Rear damper bracket
Fix arm (R)
Damper
Fix plate(R)
E
g
g
w
w
w
.
x
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1
6
3
.
c
o
m
Q
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3
7
6
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1
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1
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9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
(No.MA099)1-15
3.2.4 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 Fand the feed motor assembly.
Fig.10
3.2.5 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 re-
move the pickup unit while pulling out the part iof the FD
screw.
ATTENTION:
When reattaching the pickup unit, reattach the part jof
the pickup unit, then the part iof the FD screw.
(2) Remove the screw Gattaching the nut push spring plate
and the pickup mount nut from the pickup unit. Pull out the
FD screw.
Fig.11
3.2.6 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 kon both sides of the clamper arms. Open the
clamper arm upward.
(2) Turn the turn table, and remove the two screws Hand the
spindle motor.
Fig.12
Fig.13
Pickup unit
Part i
FD screw
Feed motor assembly
FD gear Pickup unit
Part j
F
Nut push spring plate
Pickup mount nut
Pickup unit
FD screw
G
kk
Spindle motor
H
H
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
1-16 (No.MA099)
3.3 Cassette mechanism assembly
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).
Fig.1
3.3.1 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 re-
leasing each two joint tabs ain the direction of the arrow.
Fig.2
3.3.2 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 bon the cassette catch.
Fig.3
Mode gea
r
Cassette guide
Tab a
Tab a
Load arm
E-washer
Joint b
w
w
w
.
x
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1
6
3
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c
o
m
Q
Q
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7
6
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1
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1
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9
2
8
9
4
2
9
8
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1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
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2
9
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1
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3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
(No.MA099)1-17
3.3.3 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 ar-
row 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 eand
f, then pull out from the cassette hanger assembly.
(4) Bring up the rear side of the cassette hanger assembly to
release the joint gand h.
(5) Pull out the cassette catch from the cassette hanger as-
sembly.
Fig.4
Fig.5
Fig.6
Fig.7
Cassette holder assembly
Side bracket
Joints c
Cassette holder assembly
Cassette hanger
assembly
Boss d
Boss d
Cassette hange
r
assembly
Cassette stabilizer spring
Hook f
Hook e
Cassette hanger
assembly
Hook h
Hook g
Cassette holder
assembly
Cassette holder assembly
Cassette hanger assembly
Cassette catch
w
w
w
.
x
i
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u
1
6
3
.
c
o
m
Q
Q
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7
6
3
1
5
1
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0
9
9
2
8
9
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2
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2
2
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1
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9
2
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0
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1
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1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
1-18 (No.MA099)
3.3.4 Removing the side bracket assembly
(See Fig.8 to 10)
(1) Remove the screw Aattaching the side bracket assembly.
(2) Detach the front side of the side bracket assembly upward
and pull out forward to release the joint iand jin the rear.
CAUTION:
When reassembling, make sure that the boss kof 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.
CAUTION:
After reattaching the side bracket assembly, confirm op-
eration.
Fig.8
Fig.9
Fig.10
A
Side bracket assembly
Side bracket assembly
Joint i
Joint j
Joint i
Joint j
Side bracket assembly
Boss k
Load rack
Boss k
Load rack
w
w
w
.
x
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6
3
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c
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1
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1
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4
2
2
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6
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1
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9
9
2
8
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4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
(No.MA099)1-19
3.3.5 Removing the pinch arm (F) assembly
(See Fig.11 and 12)
(1) Remove the polywasher and pull out the pinch arm (F) as-
sembly.
(2) Remove the compulsion spring.
3.3.6 Removing the pinch arm (R) assembly
(See Fig.11 and 12)
(1) Remove the polywasher and pull out the pinch arm (R) as-
sembly.
3.3.7 Removing the slide chassis assembly
(See Fig.13 and 14)
REFERENCE:
It is not necessary to remove the head and the tape guide.
(1) Move the slide chassis assembly in the direction of the ar-
row to release the two joints land remove from the main
chassis.
(2) Remove the rack link.
CAUTION:
When reassembling, first reattach the rack link, and next
fit the boss mand hook nof the slide chassis assembly
to the hole of the main chassis, and engage the two joints
l.
Fig.11
Fig.12
Fig.13
Fig.14
Polywashe
r
Polywasher Pinch arm
(F) assembly
Pinch arm
(R) assembly
Polywasher
Pinch arm (F) assembly
Compulsion
spring
Pinch arm
(R) assembly Polywasher
Slide chassis assembly
Joint l
Joint l
Boss m
Hook n
Rack link
Head
Tape guide
w
w
w
.
x
i
a
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1
6
3
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c
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Q
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1
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9
2
8
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4
2
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1
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4
2
2
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6
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1
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9
9
2
8
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4
2
9
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0
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1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
1-20 (No.MA099)
3.3.8 Removing the head / tape guide
(See Fig.16 and 17)
REFERENCE:
It is not necessary to remove the slide chassis assembly.
(1) Remove the band attaching the wire to the head.
(2) Remove the two screws B, the head and the head support
spring.
(3) Remove the pinch arm spring from the tape guide.
(4) Remove the tape guide and the pinch spring arm.
CAUTION:
When reattaching the pinch arm spring, set both end of
it to the pinch spring arm (remarked o).
CAUTION:
When reattaching the head, set the wires into the groove
of the tape guide (Fig.16).
3.3.9 Removing the flywheel assembly (F) & (R)
(See Fig.18 and 19)
REFERENCE:
It is not necessary to remove the slide chassis assembly.
(1) Remove the belt at the bottom.
(2) Remove the two polywashers on the upper side.
(3) Pull out each flywheel assembly downward.
Fig.15
Fig.16
Fig.17
Fig.18
B
Slide chassis assembly
Head Tape guide
B
Pinch arm spring
Head
Head support spring
Tape guide
Pinch spring arm
Slid chassis assembly
o
o
Flywheel assembly (F)
Flywheel assembly (R)
Belt
Polywasher
Polywasher
Flywheel assembly (F)
Flywheel assembly (R)
w
w
w
.
x
i
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1
6
3
.
c
o
m
Q
Q
3
7
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1
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1
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0
9
9
2
8
9
4
2
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T
E
L
1
3
9
4
2
2
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6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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