XR-CA650X - Sony Car Audio Service Manual (repair manual)

Tape track

4-track 2-channel stereo

Wow and flutter

0.08 % (WRMS)

Frequency response

30 – 18,000 Hz

Signal-to-noise ratio

Tuning range

87.5 – 107.9 MHz

Antenna terminal

External antenna 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

Tuning range

530 – 1,710 kHz

Antenna terminal

External antenna connector

Intermediate frequency

10.7 MHz/450 kHz

Sensitivity

30 

µV

Outputs

Speaker outputs 
(sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output

50 W 

× 4 (at 4 ohms)

Outputs

Audio outputs (rear)
Power antenna relay control 
terminal
Power amplifier control 
terminal

Inputs

BUS control input terminal
BUS audio input terminal
Remote controller input 
terminal
Antenna input terminal

Tone controls

Bass 

±10 dB at 62 Hz

Treble 

±10 dB at 16 kHz

Loudness

+8 dB at 100 Hz
+2 dB at 10 kHz

Power requirements

12 V DC car battery 
(negative ground)

Dimensions

Approx. 178 

× 50 × 177 mm 

(7 

1

/

8

 

× 2 × 7 

1

/

8

 in)

(w/h/d)

Mounting dimensions

Approx. 182 

× 53 × 161 mm 

(7 

1

/

4

 

× 2 

1

/

8

 

× 6 

3

/

8

 in)

(w/h/d)

Mass

Approx. 1.2 kg
(2 lb 10 oz)

Supplied accessories

Card remote commander 
RM-X119
Parts for installation and 
connections (1 set)
Front panel case (1)

Note
This unit cannot be connected to a digital preamplifier 
or an equalizer which is Sony BUS system compatible.

Design and specifications are subject to change 
without notice.

POWER OUTPUT AND TOTAL HARMONIC DISTORTION

23 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.

TYPE II, IV

61 dB

TYPE I

58 dB

US Model

Canadian Model

2002L0500-1

C

 2002.12

Model Name Using Similar Mechanism

XR-CA630X

Tape Transport Mechanism Type

MG-25F-136

2

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

• 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.

Location of Controls .......................................................

3

2-1. Disassembly Flow ...........................................................

8

2-2. Sub Panel Assy ................................................................

8

2-3. Mechanism Deck (MG-25F-136) ...................................

9

2-4. MAIN Board ...................................................................

9

2-5. Heat Sink (2P) ................................................................. 10

3-1. Assembly Flow ................................................................ 11
3-2. Housing ........................................................................... 11
3-3. Arm (Suction) ................................................................. 12
3-4. Lever (LDG-A)/(LDG-B) ............................................... 12
3-5. Gear (Loading FT) .......................................................... 13
3-6. Guide (C) ......................................................................... 13
3-7. Mounting Position of Capstan/Reel Motor (M901) ....... 14

....................... 15

Tape Deck Section .......................................................... 15
Tuner Section .................................................................. 15

6-1. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 16

6-2. Printed Wiring Board – MAIN Board – ......................... 17
6-3. Schematic Diagram – MAIN Board (1/3) – ................... 18
6-4. Schematic Diagram – MAIN Board (2/3) – ................... 19
6-5. Schematic Diagram – MAIN Board (3/3) – ................... 20
6-6. Printed Wiring Board – SUB Board – ............................ 21
6-7. Schematic Diagram – SUB Board – ............................... 21
6-8. Printed Wiring Board – KEY Board – ............................ 22
6-9. Schematic Diagram – KEY Board – .............................. 23
6-10. IC Pin Function Description ........................................... 25

7-1. Chassis Section ............................................................... 28
7-2. Front Panel Section ......................................................... 29
7-3. MAIN Board Section ...................................................... 30
7-4. Mechanism Deck Section (MG-25F-136) ...................... 31

............................... 32

3

r

To receive preset stations, change the disc*

1

, 

skip albums*

2

, and select a menu.

*1

When an optional CD/MD unit is connected.

*2

Available only when optional CD unit with the 
MP3 file control function is connected.

s

To skip tracks, fast-forward, reverse a track, 
tune in stations automatically, find a station 
manually, and select a setting.

(SEEK)

(–): to select 

leftwards/

.

(SEEK)

(+): to select 

rightwards/

>

(DISC/PRESET)

(+): to select upwards

In menu mode, the currently selectable button(s) of 
these four are indicated with a “ 

M

” in the display.

(DISC/PRESET)

(–): to select downwards

This section is extracted from
instruction manual.

Refer to the pages listed for details.

a

b

o

To change the operation.

c

d

e

f Z

(located on the front side 

of the unit, behind the front panel)

g

To change the menus.

h

i

j

*

k

RESET button 

(located on the front side of 

the unit, behind the front panel)

l

To select the source.

m

n

o

p

To enter a setting.

q

*

Warning when installing in a car without 
an ACC (accessory) position on the 
ignition switch
After turning off the ignition, be sure to press 
and hold 

(OFF)

 on the unit until the display 

disappears.

Otherwise, the display does not turn off and 
this causes battery drain.

XR-CA650X

4

Equipment used in illustrations (not supplied)
Appareils utilisés dans les illustrations (non fournis)

Cautions

• This unit is designed for negative ground 12 V

DC operation only.

• Do not get the wires under a screw, or caught

in moving parts (e.g. seat railing).

• Before making connections, turn the car

ignition off to avoid short circuits.

• Connect the yellow and red power input leads

only after all other leads have been connected.

• Run all ground wires to a common ground

• Be sure to insulate any loose unconnected

wires with electrical tape for safety.

Notes on the power supply cord (yellow)
• When connecting this unit in combination with

other stereo components, the connected car
circuit’s rating must be higher than the sum of
each component’s fuse.

• When no car circuits are rated high enough,

connect the unit directly to the battery.

Parts Iist (

1

)

The numbers in the list are keyed to those in the
instructions.

Caution

Handle the bracket 1 carefully to avoid injuring
your fingers.

Connection example ( 

2

)

Notes (

2-A)

Tip (

2-B-  )

Connection diagram (

3

)

1

To a metal surface of the car
First connect the black ground lead, then
connect the yellow and red power input
leads.

2

To the power antenna control lead or power
supply lead of antenna booster amplifier
Notes
• It is not necessary to connect this lead if

3

To AMP REMOTE IN of an optional power
amplifier
This connection is only for amplifiers.
Connecting any other system may damage
the unit.

4

To the +12 V power terminal which is
energized in the accessory position of the
ignition key switch
Notes
• If there is no accessory position, connect to

5

To the +12 V power terminal which is
energized at all times
Be sure to connect the black ground lead to a
metal surface of the car first.

1

a

b

(1)

(2)

To store stations, receive stored stations.

c

d

e

f

<

,

g

h

i

j

k

o

l

m

M

m

n

o

Note
If the display disappears by pressing 

(OFF)

, it cannot 

be operated with the card remote commander unless 

(SOURCE)

 on the unit is pressed, or a disc is inserted 

to activate the unit first.

Tip
See “Replacing the lithium battery” on page 21 for 
details on how to replace the batteries.