XR-CA600X, XR-CA620X - Sony Car Audio Service Manual (repair manual)

Model Name Using Similar Mechanism

XR-C5300X/C5600X

Tape Transport Mechanism Type

MG-25F-136

US Model

Canadian Model

XR-CA600X

E Model

XR-CA620X

Photo: XR-CA600X

2001E0500-1

C

 2001.5

Tape track

4-track 2-channel stereo

Wow and flutter

0.08 % (WRMS)

Frequency response

30 – 18,000 Hz

Signal-to-noise ratio

T
XR-CA600X:
XR-CA620X:

uning range

FM tuning interval:
50 kHz/200 kHz switchable
87.5 – 108.0 MHz
(at 50 kHz step)
87.5 – 107.9 MHz

87.5 – 107.9 MHz

(at 200 kHz step)

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

Tuning range

MW tuning interval:
9 kHz/10 kHz switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)

Tuning range

SW tuning interval:
SW1: 2,940 – 7,735 kHz
SW2: 9,500 – 18,135 kHz
(except for 10,140 – 11,575 
kHz)

Aerial terminal

External aerial connector

Intermediate frequency

10.7 MHz/450 kHz

Sensitivity

30 

µ

V (at MW)

40 

µ

V (at SW)

Outputs

Speaker outputs 
(sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output

50 W 

×

 4 (at 4 ohms)

Outputs

Audio outputs
Power aerial relay control 
lead
Power amplifier control lead

Inputs

BUS control input 
connector
BUS audio input connector 
Remote controller input 
connector
Aerial input connector

Tone controls

Bass 

±

8 dB at 100 Hz

Treble 

±

8 dB at 10 kHz

Loudness

100 Hz +8 dB
10 kHz +2 dB

Power requirements

12 V DC car battery 
(negative earth)

Dimensions

Approx. 178 

×

 50 

×

 176 

mm (w/h/d)

Mounting dimensions

Approx. 182 

×

 53 

×

 161 

mm (w/h/d)

Mass

Approx. 1.2 kg

Supplied accessories

Card
(XR-CA620X only) (1)

 remote commander

Parts for installation and 
connections (1 set)
Front panel case (1)

TYPE II, IV

61 dB

TYPE I

58 dB

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.

Tuning range

530 – 1,710 kHz

Antenna terminal

External antenna connector

Intermediate frequency

10.7 MHz/450 kHz

Sensitivity

30 

µ

V

2

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

3

Setting the Clock .............................................................

5

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

9

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

9

2-3. Mechanism Deck (MG-25F-136) ................................... 10
2-4. MAIN Board ................................................................... 10
2-5. Heat Sink (2P) ................................................................. 11

3-1. Housing ........................................................................... 12
3-2. Arm (Suction) ................................................................. 12
3-3. Lever (LDG-A)/(LDG-B) ............................................... 13
3-4. Gear (LDG-FT) ............................................................... 13
3-5. Guide (C) ......................................................................... 14
3-6. 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 ....................................................... 15

6-2. Printed Wiring Board – MAIN Board – ......................... 16
6-3. Schematic Diagram – MAIN Board (1/3) – ................... 17
6-4. Schematic Diagram – MAIN Board (2/3) – ................... 18
6-5. Schematic Diagram – MAIN Board (3/3) – ................... 19
6-6. Printed Wiring Board – SUB Board – ............................ 20
6-7. Schematic Diagram – SUB Board – ............................... 20
6-8. Printed Wiring Board – KEY Board – ............................ 22
6-9. Schematic Diagram – KEY Board – .............................. 23
6-10. IC Pin Function Description ........................................... 24

7-1. General Section ............................................................... 26
7-2. Front Panel Section ......................................................... 27
7-3. Mechanism Deck Section (MG-25F-136) ...................... 28

............................... 29

• 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.

3

This section is extracted from
instruction manual.

Refer to the pages listed for details.

: During tape playback   

: During radio reception   

: During menu mode

: During CD/MD playback (optional)   

: During TV reception (optional)

a

MBP button  16

b

MENU button  8, 9, 10, 11, 12, 15, 16, 
17, 19, 20, 21, 22

c

d

  11, 12
  19, 20

e

f

SOURCE (Power on/Tape/Radio/CD/
MD/TV) button  5, 9, 10, 11, 16, 17, 19, 
21, 22, 23

g

h Z

 (located on the front side 

of the unit, behind the front panel)  

9, 23

i

OPEN button  7, 9

j

EQ7 button  16

k

(located on the front side of 

the unit, behind the front panel)

  7

l

*

  5, 7, 9, 

17

m

See “Frequency select switch” in the 
Installation/Connections manual.

n

SOUND button  14, 16

o

  12
  8, 9, 10, 11, 12, 15, 16, 17, 19, 

20, 21, 22, 23

  19, 20

p

o

  9
  10, 11
  17, 19
  21

q

DSPL (display mode change) button  
12, 18, 19

r

(1)

 REP  9

  10, 11

(1)

 REP  18

(2)

 SHUF  18

  22

*

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

(OFF)

 on the unit for 2 seconds to turn off the 

clock display.

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

4

s

  10, 11, 12

8, 9, 10, 11, 12, 15, 16, 17, 19, 
20, 21, 22

  17, 19, 20
  21

t

  9
  10, 11
  8, 9, 14, 15, 16, 17, 21
  17, 19, 20
  22, 23

a

b

c

d

<

,

e

f

g

h

i

j

M

m

k

l

Note
If the units is turned off by pressing (OFF) for 2 
seconds, it cannot be operated with the card remote 
commander unless (SOURCE) on the unit is pressed, 
or a cassette is inserted to activate the unit first.

(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