DOWNLOAD Sony WX-7700MDX Service Manual ↓ Size: 8.5 MB | Pages: 105 in PDF or view online for FREE

Model
WX-7700MDX
Pages
105
Size
8.5 MB
Type
PDF
Document
Service Manual
Brand
Device
Car Audio
File
wx-7700mdx.pdf
Date

Sony WX-7700MDX Service Manual ▷ View online

9
WX-7700MDX
L
R
L
R
REAR
AUX IN
FRONT
BUS AUDIO
AUDIO OUT
IN
3
1
4
5
6
Blue
Red
Yellow
4
Black
Max. supply current 0.1 A
Fuse (10 A)
BUS AUDIO IN
 
 AMP REM
ANT REM
BUS CONTROL IN
Light blue
Max. supply current 0.3 A
White
Grey
Green
Purple
White/black striped
Grey/black striped
Green/black striped
Purple/black striped
Source selector
XA-C30
Left
Right
Left
Right
3
Blue/white striped
2
ATT
Supplied with the CD/MD changer
Supplied with XA-C30
SUBWOOFER OUT
(MONO)
RCA pin cord
*
1
Orange/white striped
7
ILLUMINATION
*
1
 not supplied
*
2
 Connect the Bus cable to its
terminal with the unit’s 
V
 mark and
the Bus cable’s 
v
 mark aligned.
*
3
 supplied with the auxiliary
equipment
*
4
 Auxiliary optional equipment such
as portable DVD player (not
supplied)
*
2
from car aerial
 AUX IN
AUDIO OUT
(REAR)
AUDIO OUT
(FRONT)
RCA pin cord
*
1
*
3
*
4
Notes
• Use the screws 
1
 or 
2
 depending on the make of
car. When this unit is attached to a MITSUBISHI car,
use the  supplied screws 
2
.
• T o prevent malfunction, be sure to install using
brackets and the supplied screws 
1
 or 
2
.
• Do not apply excessive force to the buttons of the
unit.
• Do not push on the display window.
• Before mounting, make sure there is nothing on
the top of the unit.
Warning when installing in a car
without ACC (accessory)
position on the ignition key
switch
Be sure to press 
(OFF)
 on the unit for two
seconds to turn off the clock display after
turning off the engine.
When you press (OFF) only momentarily, the
clock display does not turn off and this causes
battery wear.
Reset button
When the installation and connections are
completed, be sure to press the reset button with
a ballpoint pen, etc.
Note
When you connect the power supply cord to the
unit or reset the unit, wait for about 10 seconds
before you insert a disc. If you insert a disc within
these 10 seconds, the unit will not be reset, and you
will have to press the reset button again.
Precautions
• Choose the installation location carefully so
that the unit will not interfere with normal
driving operations.
• Avoid installing the unit in areas subject to
dust, dirt, excessive vibration, or high
temperatures, such as in direct sunlight or near
heater ducts.
• Use only the supplied mounting hardware for
a safe and secure installation.
To open/close the front panel smoothly, to insert/
eject a disc easily, and especially to drive safely, a
certain distance between the front panel and the
shift lever is necessary. The necessary distance
differs, depending on the shift lever position of
your car. Before installing the unit, choose the
installation location carefully so that you can
drive safely.
Mounting angle adjustment
Adjust the mounting angle to less than 30
°
.
Frequency select switch
The AM (FM) tuning interval is factory-set to the
9 k (50 k) position. If the frequency allocation
system of your country is based on 10 kHz (200
kHz) interval, set the switch 
on the bottom of
the unit
 to the 10 k (200 k) position before
making connections.
After the frequency select switch is set, you must
press the reset button to reset the unit.
Mounting the unit in a Japanese
car (
4
)
You may not be able to install this unit in some
makes of Japanese cars. In such a case, consult
your Sony dealer.
When mounting this unit to the preinstalled
brackets of your car, use the supplied screws 1
or  2 in the appropriate screw holes, according
to your vehicle: T for TOYOTA, M for
MITSUBISHI, and N for NISSAN.
4
A
TOYOTA/MITSUBISHI
to dashboard/centre console
Bracket
Bracket
1
 or 
2
max. size 5 
×
 8 mm
Existing parts supplied with your car
1
 or 
2
max. size 5 
×
 8 mm
VOL
ANGLE
MODE
SOURCE
DISC
AMS
ATT
OPEN/
CLOSE
OFF
Reset button
T
N
T
M
N
M
T
N
M
N
N
T
T
This illustration is for TOYOTA cars.
B
NISSAN
1
 or 
2
max. size 5 
×
 8 mm
Bracket
Existing parts supplied with your car
1
 or 
2
max. size 5 
×
 8 mm
to dashboard/centre console
3
WX-7700MDX
WX-7700MDX
Shift lever
88 mm
Bracket
WX-7700MDX
10
• This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY  FLOW
SECTION  3
DISASSEMBLY
3-2. FRONT PANEL 
SECTION
(Page 11)
3-3. DISPLAY BOARD
(Page 11)
3-4. CHASSIS (T) SECTION
(Page 12)
3-6. POWER BOARD,
CHASSIS (T) 
ASSY
(Page 13)
3-7. HEAT SINK
(Page 13)
3-5. MD MECHANISM DECK
(MG-164MF-138)
(Page 12)
3-17. CD MECHANISM DECK
(MG-398D-121)
(Page 18)
3-8. SERVO (MD) 
BOARD (Page 14)
3-9. MD COVER ASSY
(Page 14)
3-10. FLOAT BLOCK
(Page 15)
3-11. LO MOTOR ASSY
(Page 15)
3-12. LEVER ASSY (LE)
(Page 16)
3-13. HOLDER ASSY
(Page 16)
3-14. CHUCKING ARM ASSY
(Page 17)
3-15. OPTICAL PICK-UP
(KMS-241C)
(Page 17)
3-16. SL MOTOR ASSY 
(SLED) (M902)/
SP MOTOR ASSY 
(SPINDLE) (M901)
(Page 18)
3-18. MOTOR ASSY 
(FRONT PANEL OPEN/
CLOSE) (M640)
(Page 19)
3-19. MAIN BOARD, 
CHASSIS (B) 
ASSY
(Page 19)
3-21. CHASSIS (T388) 
ASSY
(Page 20)
3-20. BRACKET 
(MAIN)
(Page 20)
3-22. SENSOR (CD) 
BOARD (Page 21)
3-23. SERVO (CD) 
BOARD, LO 
MOTOR SUB ASSY 
(LOADING) (M103)
(Page21)
3-24. ARM ROLLER 
ASSY, 
LOAD BOARD
(Page 22)
3-25. FLOATING BLOCK 
ASSY
(Page22)
3-26. OPTICAL PICK-UP 
(KSS-720A),
SLED MOTOR ASSY 
(M101)
(Page23)
SET
Note 1:
The process can be removed in every turn in the      .
Note 2:
Unless finishes all processes in the      , it  cannot progress to the following process.
WX-7700MDX
11
1
two screws 
(P2 
×
 5)
3
four claws
5
flaxible frat cable (7P)
(CN711)
3
three claws
3
two claws
4
front back panel
2
two tapping screws 
6
tapping screws 
7
display board
Note:
 Follow the disassembly procedure in the numerical order given.
3-2.
FRONT  PANEL  SECTION
3-3.
DISPLAY  BOARD
1
tapping screw
2
two screws 
(PTT2.6 
×
 6)
6
ornamental 
screw 
9
cover 
(flexible)
4
roller 
(guide) 
4
roller 
(guide) 
5
spring 
(guide) 
0
key connection 
flexible board
qa
front panel section
5
spring 
(guide) 
8
torsion spring 
(fulcrum: R) 
8
torsion spring 
(fulcrum: L) 
6
ornamental 
screw 
7
sleeve
7
sleeve
2
two screws 
(PTT2.6 
×
 6)
1
tapping screw
3
guide panel (R)
3
guide panel (L)
WX-7700MDX
12
3-4.
CHASSIS  (T)  SECTION
3
two screws 
(PTT2.6 
×
 6)
3
two screws 
(PTT2.6 
×
 6)
4
chassis (T) section
1
flexible flat cable (40P) 
(CN403)
2
connector (CN400)
1
two screws 
(PTT2.6 
×
 5)
2
Rifting up the MD mechanism deck.
3
flexible flat cable (30P)
(CN402)
4
MD mechanism deck
(MG-164MF-138)
1
two screws 
(PTT2.6 
×
 5)
3-5.
MD  MECHANISM  DECK  (MG-164MF-138)
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