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SERVICE MANUAL
AEP Model
UK Model
SPECIFICATIONS
MDX-C6500RV
Model Name Using Similar Mechanism
MDX-C6500R
Base Mechanism Type
MG-164NZ-138
Optical Pick-up Name
KMS-241C/J1NP
FM/MW/LW MINIDISC PLAYER
U.S. and foreign patents licensed from Dolby
laboratories Licensing Corporation.
Design and specifications are subject to change
without notice.
MD player section
Signal-to-noise ratio
90 dB
Frequency response
10 ­ 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
87.5 ­ 108.0 MHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz/450 kHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
66 dB (stereo),
72 dB (mono)
Harmonic distortion at 1 kHz
0.6 % (stereo),
0.3 % (mono)
Separation
35 dB at 1 kHz
Frequency response
30 ­ 15,000 Hz
MW/LW
Tuning range
MW: 531 ­ 1,602 kHz
LW: 153 ­ 279 kHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz/450 kHz
Sensitivity
MW: 30
µV
LW: 40
µV
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
Speaker impedance
4 ­ 8 ohms
Maximum power output 50 W
× 4 (at 4 ohms)
General
Outputs
Audio outputs
Power aerial relay control
lead
Power amplifier control
lead
Telephone ATT control
lead
Tone controls
Bass
±9 dB at 100 Hz
Treble
±9 dB at 10 kHz
Power requirements
12 V DC car battery
(negative ground)
Dimensions
Approx. 178
× 50 × 183 mm
(w/h/d)
Mounting dimensions
Approx. 182
× 53 × 162 mm
(w/h/d)
Mass
Approx. 1.2 kg
Supplied accessories
Parts for installation and
connections (1 set)
Front panel case (1)
Ver 1.1 2001.05
9-870-087-12
Sony Corporation
2001E0500-1
e Vehicle Company
C
2001.5
Shinagawa Tec Service Manual Production Group


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Notes on chip component replacement
· Never reuse a disconnected chip component.
· Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270 °C dur-
ing repairing.
· Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
· Be careful not to apply force on the conductor when soldering
or unsoldering.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
Never look into the laser diode emission from right avove when
checking it for adustment. It is feared that you will lose your sight.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
(KMS-241C/J1NP).
The laser diode in the optical pick-up block may suffer electro-
static break-down easily. When handling it, perform soldering
bridge to the laser-tap on the flexible board. Also perform m easures
against electrostatic break-down sufficiently before the operation.
The flexible board is easily damaged and should be handled with
care.
laser-tap
OPTICAL PICK-UP FLEXIBLE BOARD
1.
GENERAL
Location of Controls .......................................................
3
Setting the Clock .............................................................
3
Installation .......................................................................
4
Connections .....................................................................
5
2.
DISASSEMBLY ......................................................... 9
3.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 16
MD Section ..................................................................... 16
Tuner Section .................................................................. 16
4.
DIAGRAMS
4-1. Block Diagram ­ SERVO Section ­ ............................... 17
4-2. Block Diagram ­ TUNER Section ­ .............................. 18
4-3. Block Diagram ­ MAIN Section ­ ................................. 19
4-4. Block Diagram ­ BUS CONTROL/
POWER SUPPLY Section ­ ........................................... 20
4-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 21
4-6. Printed Wiring Boards
­ SERVO Board (Component Side)/
SENSOR Board ­ ............................................................ 22
4-7. Printed Wiring Board
­ SERVO Board (Conductor Side) ­ .............................. 23
4-8. Schematic Diagram ­ SERVO Board (1/2) ­ ................. 24
4-9. Schematic Diagram ­ SERVO Board (2/2) ­ ................. 25
4-10. Printed Wiring Board
­ MAIN Board (Component Side) ­ .............................. 26
4-11. Printed Wiring Board
­ MAIN Board (Conductor Side) ­ ................................ 27
4-12. Schematic Diagram ­ MAIN Board (1/3) ­ ................... 28
4-13. Schematic Diagram ­ MAIN Board (2/3) ­ ................... 29
4-14. Schematic Diagram ­ MAIN Board (3/3) ­ ................... 30
4-15. Printed Wiring Board ­ SUB Board ­ ............................ 32
4-16. Schematic Diagram ­ SUB Board ­ ............................... 33
4-17. Printed Wiring Board ­ KEY Board ­ ............................ 34
4-18. Schematic Diagram ­ KEY Board ­ .............................. 35
4-19. IC Pin Function Description ........................................... 40
5.
EXPLODED VIEWS ................................................ 50
6.
ELECTRICAL PARTS LIST ............................... 54
TABLE OF CONTENTS


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SECTION 1
GENERAL
This section is extracted from
instruction manual.
Location of controls
Refer to the pages listed for details.
1 Volume control dial 19
2 MENU button 8, 10, 12, 13, 14, 15, 16,
18, 19, 21, 24
3 DISC/PRST +/­ (cursor up/down) buttons
8, 10, 12, 13, 14, 15, 16, 18, 19, 20, 21, 24
During CD/MD playback:
Disc change 10, 13
During radio reception:
Preset stations select 16
4 Z (eject) button (located on the front
side of the unit behind the front panel)
9
5 DSPL/PTY (display mode change/
programme type) button 9, 10, 12, 17,
20
6 LIST button 12
List-up 13
7 SOURCE (TUNER/CD/MD) button
8, 9, 10, 13, 15, 16, 19
8 Display window
9 OPEN button 7, 9, 26
q; D-BASS button 25
qa SOUND button 23
qs Reset button (located on the front side
of the unit behind the front panel) 7
qd OFF button* 7, 8, 9
qf SEEK/AMS ­/+ (cursor left/right) buttons
8, 10, 12, 14, 16, 18, 19, 21, 23, 24
Automatic Music Sensor 10, 14
Manual Search 10
Seek 15, 16, 18
qg ENTER button 8, 10, 12, 13, 14, 15, 16,
18, 19, 20, 21, 24
qh MODE button 19
During CD or MD playback:
CD/MD unit select 9, 13
During radio reception:
BAND select 15, 16
qj Receptor for the card remote
commander
qk Number buttons
During radio reception:
Preset number select 15, 16, 18, 19
During CD/MD playback:
(1) REP 11
(2) SHUF 11
ql AF button 17, 18, 19
w; TA button 18, 19
* 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.
MDX-C6500RV
D I SC +
PR
S
T+
-
D IS C ­
PR
ST- -
LIST
DSPL
AF
OFF
PTY
ENTER
MENU
SOUND
1
2
3
4
56
SOURCE
-SEEK/AMS
REP
SHUF
TA
OPEN
D-BASS
MODE
Setting the clock
The clock uses a 24-hour digital indication.
Example: To set the clock to 10:08
1 Press (MENU), then press either side of
(DISC/PRST) repeatedly until "CLOCK"
appears.
1
Press (ENTER).
The hour indication flashes.
2
Press either side of (DISC/PRST) to set
the hour.
3
Press the (+) side of (SEEK/AMS).
The minute indication flashes.
4
Press either side of (DISC/PRST) to set
the minute.
2 Press (ENTER).
The clock starts.
After the clock setting is completed, the
display returns to normal play mode.
Tip
You can set the clock automatically with the RDS
feature (see page 17).
Note
In the initial setting, the clock indication appears
while the unit is turned off.
When the D.INFO mode is set to ON, the time is
always displayed (page 24).


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