Read Sony XAV-7W Service Manual online
SERVICE MANUAL
MEDIA CENTER/RECEIVER
US Model
E Model
SPECIFICATIONS
XAV-7W
Ver 1.1 2002.09
9-873-928-02
Sony Corporation
2002I0500-1
e Vehicle Company
C
2002.09
Published by Sony Engineering Corporation
The XAV-7W is composed of the following models.
Media Center
XAV-7W
Connection Box
XA-114
Wireless Remote Commander
RM-X118
AUDIO POWER SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
22 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from
20 Hz to 20 kHz with no more than 5 % total harmonic distortion.
22 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from
20 Hz to 20 kHz with no more than 5 % total harmonic distortion.
General
Power requirements
12 V DC, from car battery (negative
ground)
Inputs
FM/AM antenna (1)
Power supply (1)
Telephone ATT control lead (1)
Illumination control lead (1)
Remote control input connector (1)
Power supply (1)
Telephone ATT control lead (1)
Illumination control lead (1)
Remote control input connector (1)
Media center/receiver
Monitor section
Display type
Wide LCD color monitor
Size
7 in.
System
TFT active matrix
Number of pixel
336,960 pixels
Tuner section
FM
Tuning range (US model)
87.5 - 107.9 MHz
Intermediate frequency
10.7 MHz
Usable sensitivity
8 dBf
Frequency response
30 - 15,000 Hz
Selectivity
75 dB (400 kHz)
S/N ratio
66 dB (stereo)
72 dB (mono)
72 dB (mono)
Harmonic distortion at 1 kHz
0.6% (stereo)
0.3% (mono)
0.3% (mono)
Separation
35 dB at 1 kHz
AM
Tuning range (US model)
530 - 1,710 kHz
Intermediate frequency
10.7 MHz/450 kHz
Usable sensitivity
30
µ
V
Amplifier section
Outputs
Speaker outputs
(sure seal connectors)
(sure seal connectors)
Speaker impedance
4 - 8 ohms
Maximum power output
45 W
×
4 (into 4 ohms, at 1 kHz)
Tuning range (E model)
FM tuning interval: 50 kHz/200kHz
switchable
87.5 - 108.0 MHz (at 50 kHz step)
87.5 - 107.9 MHz (at 200 kHz step)
87.5 - 107.9 MHz (at 200 kHz step)
Tuning range (E model)
AM tuning interval: 9 kHz/10kHz
switchable
530 - 1,602 kHz (at 9 kHz step)
530 - 1,710 kHz (at 10 kHz step)
530 - 1,710 kHz (at 10 kHz step)
– Continued on next page –
2
XAV-7W
Connection box
Inputs
Video/audio
(Sony bus compatible, 1)
BUS control input connector (1)
Video/audio (2)
Video/audio (2)
Outputs
Video/audio (1)
Connection to main unit
Dedicated 22-pin connector
Dimensions
Approx. 136
×
77
×
30 mm (5
3
/
8
×
3
1
/
8
×
1
3
/
16
in.) (W
×
H
×
D)
Mass
Approx. 260 g (9 oz)
Design and specifications are subject to
change without notice.
change without notice.
Loudness
+8 dB at 100 Hz
+2 dB at 10 kHz
+2 dB at 10 kHz
Dimensions
With monitor closed
Approx. 178
Approx. 178
×
50
×
185 mm (7
1
/
8
×
2
×
7
3
/
8
in.) (W
×
H
×
D)
Mass
Approx. 1.7 kg (3 lb 12 oz)
Supplied accessories
Card remote commander RM-X118
(1) (incl. 1 lithium battery)
Connection box (1)
Parts for installation and
Parts for installation and
connections (1 set)
Operating Instructions (1 set)
Outputs
Front audio (1)
Rear audio (1)
Subwoofer (mono)
Power antenna relay control lead (1)
Power amplifier control lead (1)
Rear audio (1)
Subwoofer (mono)
Power antenna relay control lead (1)
Power amplifier control lead (1)
I/O connector
Dedicated 22-pin connector
Tone controls
Bass
±
7.5 dB at 100 Hz
Treble
±
7.5 dB at 10 kHz
1.
SERVICING NOTES
...............................................
3
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
9
3-2. Front Panel Assy .............................................................
9
3-3. Case (Upper) Assy .......................................................... 10
3-4. MAIN Board ................................................................... 11
3-5. Motor Assy (M701) ......................................................... 12
3-6. Setting of Lead from Motor Assy (M701) ..................... 12
3-7. Monitor ............................................................................ 13
3-8. Monitor (F)/(R) Cabinet Assy ......................................... 13
3-9. LCD ................................................................................. 14
3-10. MONITOR Board ........................................................... 14
3-4. MAIN Board ................................................................... 11
3-5. Motor Assy (M701) ......................................................... 12
3-6. Setting of Lead from Motor Assy (M701) ..................... 12
3-7. Monitor ............................................................................ 13
3-8. Monitor (F)/(R) Cabinet Assy ......................................... 13
3-9. LCD ................................................................................. 14
3-10. MONITOR Board ........................................................... 14
4.
ASSEMBLY
4-1. Assembly of Flat Cable ................................................... 15
5.
ELECTRICAL ADJUSTMENTS
......................... 16
6.
DIAGRAMS
6-1. Block Diagram – MAIN Section – ................................ 21
6-2. Block Diagram
6-2. Block Diagram
– DISPLAY/BUS CONTROL Section – ........................ 22
6-3. Block Diagram – MONITOR Section – ........................ 23
6-4. Block Diagram – POWER SUPPLY Section – ............. 24
6-5. Note for Printed Wiring Boards and
6-4. Block Diagram – POWER SUPPLY Section – ............. 24
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 25
6-6. Schematic Diagram – FM/MAIN (1/5) Boards – ......... 27
6-7. Schematic Diagram – MAIN Board (2/5) – .................. 28
6-8. Schematic Diagram – MAIN Board (3/5) – .................. 29
6-9. Schematic Diagram – MAIN Board (4/5) – .................. 30
6-10. Schematic Diagram – MAIN (5/5)/SYNC Boards – .... 31
6-11. Printed Wiring Boards
6-7. Schematic Diagram – MAIN Board (2/5) – .................. 28
6-8. Schematic Diagram – MAIN Board (3/5) – .................. 29
6-9. Schematic Diagram – MAIN Board (4/5) – .................. 30
6-10. Schematic Diagram – MAIN (5/5)/SYNC Boards – .... 31
6-11. Printed Wiring Boards
– MAIN (Component Side)/SYNC Boards – ................. 32
6-12. Printed Wiring Boards
– FM/MAIN (Conductor Side) Boards – ....................... 33
6-13. Printed Wiring Board – FRONT Board – ...................... 34
6-14. Schematic Diagram – FRONT Board – ......................... 35
6-15. Printed Wiring Board
6-14. Schematic Diagram – FRONT Board – ......................... 35
6-15. Printed Wiring Board
– MONITOR Board (Component Side) – ...................... 36
6-16. Printed Wiring Board
– MONITOR Board (Conductor Side) – ........................ 37
6-17. Schematic Diagram – MONITOR Board (1/3) – .......... 38
6-18. Schematic Diagram – MONITOR Board (2/3) – .......... 39
6-19. Schematic Diagram – MONITOR Board (3/3) – .......... 40
6-20. Printed Wiring Boards – ANGLE/KEY Boards – ......... 42
6-21. Schematic Diagram – ANGLE/KEY Boards – ............. 43
6-22. Printed Wiring Board – MOTOR Board – ..................... 44
6-23. Schematic Diagram – MOTOR Board – ....................... 45
6-24. Printed Wiring Boards – PULSE/SWITCH Boards – ... 46
6-25. Schematic Diagram – PULSE/SWITCH Boards – ........ 46
6-26. IC Pin Function Description ........................................... 52
6-18. Schematic Diagram – MONITOR Board (2/3) – .......... 39
6-19. Schematic Diagram – MONITOR Board (3/3) – .......... 40
6-20. Printed Wiring Boards – ANGLE/KEY Boards – ......... 42
6-21. Schematic Diagram – ANGLE/KEY Boards – ............. 43
6-22. Printed Wiring Board – MOTOR Board – ..................... 44
6-23. Schematic Diagram – MOTOR Board – ....................... 45
6-24. Printed Wiring Boards – PULSE/SWITCH Boards – ... 46
6-25. Schematic Diagram – PULSE/SWITCH Boards – ........ 46
6-26. IC Pin Function Description ........................................... 52
7.
EXPLODED VIEWS
7-1. Front Panel Section ......................................................... 61
7-2. Case (Upper) Assy Section ............................................. 62
7-3. Open Close Motor Section .............................................. 63
7-4. Case (Lower) Assy Section ............................................. 64
7-5. Monitor Section ............................................................... 65
7-2. Case (Upper) Assy Section ............................................. 62
7-3. Open Close Motor Section .............................................. 63
7-4. Case (Lower) Assy Section ............................................. 64
7-5. Monitor Section ............................................................... 65
8.
ELECTRICAL PARTS LIST
............................... 66
TABLE OF CONTENTS
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
3
XAV-7W
SECTION 1
SERVICING NOTES
OPENING AND CLOSING OF THE MONITOR IN
AN ELECTRIC INTERRUPTION STATE
AN ELECTRIC INTERRUPTION STATE
In the state of electric interruption, if a monitor is opened and
closed by force, it will became the cause of failure.
Please open and close a monitor at the time of repair after the
following procedure decomposes and removing a motor.
closed by force, it will became the cause of failure.
Please open and close a monitor at the time of repair after the
following procedure decomposes and removing a motor.
1) Front Panel Assy (Disassembly page 9)
2) Case (Upper) Assy (Disassembly page 10)
3) Motor Assy (Monitor Open/Close) (M701)
2) Case (Upper) Assy (Disassembly page 10)
3) Motor Assy (Monitor Open/Close) (M701)
Note:
Follow the disassembly procedure in the numerical order given.
1
five screws (M2
×
2.3)
3
three screws (M2
×
2.3)
6
Open and close a monitor after lifting
a motor assy (monitor open/close) (M701).
a motor assy (monitor open/close) (M701).
motor assy (monitor open/close) (M701)
3
screw (M2
×
2.3)
2
cover
4
lug
5
4
XAV-7W
JIG ON REPAIRING
When repairing this set, etc., connect the extension cable as the figure shown below.
extension cable
(LCD unit – monitor board)
(Part No. J-2502-051-1)
(LCD unit – monitor board)
(Part No. J-2502-051-1)
extension cable
(main board – monitor board)
(Part No. J-2502-056-3)
(main board – monitor board)
(Part No. J-2502-056-3)
extension cable
(monitor board – monitor ground plate)
(Part No. J-2502-056-4)
(monitor board – monitor ground plate)
(Part No. J-2502-056-4)
extension cable
(7 inch monitor back light – monitor board)
(Part No. J-2502-051-3)
(7 inch monitor back light – monitor board)
(Part No. J-2502-051-3)
connect the earth