DOWNLOAD Sony XR-3750 / XR-3758 / XR-3759 / XR-7750 / XR-C350 / XRS-888 (serv.man2) Service Manual ↓ Size: 644.32 KB | Pages: 31 in PDF or view online for FREE

MICROFILM

US Model

Canadian Model

E Model

Model Name Using Similar Mechanism

NEW

Tape Transport Mechanism Type

MG-25A-136

POWER OUTPUT AND TOTAL HARMONIC DISTORTION
13 watts per channel minimum continuous average power into 4 ohms, 4
channels driven from 20 Hz to 20 kHz with no more than 1% total harmonic
distortion.

Tape track

4-track 2-channel stereo

Wow and flutter

0.08% (WRMS)

Frequency response

30 – 18,000 Hz

Signal-to-noise ratio

58 dB

FM

Tuning range

US, Canadian model:
87.5 – 107.9 MHz
E model:
50 kHz/200 kHz switchable
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)

Antenna terminal

External antenna connector

Intermediate frequency

10.7 MHz

Usable sensitivity

8 dBf

Selectivity

75 dB at 400 kHz

Signal-to-noise ratio

65 dB (stereo),
68 dB (mono)

Harmonic distortion at 1 kHz

0.5% (stereo),
0.3% (mono)

Separation

35 dB at 1 kHz

Frequency response

30 – 15,000 Hz

Capture ratio

2 dB

AM (MW)

Tuning range

US, Canadian model:
530 – 1,710 kHz
E model:
9 kHz/10 kHz switchable
531–1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)

SW (E model only)

Tuning range

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

Antenna terminal

External antenna connector

Intermediate frequency

10.71 MHz/450 kHz

Sensitivity

30 µV

– Continued on next page –

– 2 –

Location of Controls (XR-3750) ..................................... 3
Location of Controls (XR-C350) ..................................... 4
Setting the Clock ............................................................. 5
Adjusting the Sound Characteristics ............................... 5
Muting the Sound ............................................................ 5
Changing the Sound and Beep Tone ................................ 5
Installation ....................................................................... 6
Connections ..................................................................... 7

.......................................................... 9

............. 11

....................... 14

Test Mode ........................................................................ 14
Tape Deck Section ........................................................... 14
Tuner Section ................................................................... 15

6-1. Printed Wiring Board  –Main Section– ........................... 21
6-2. Schematic Diagram  –Main Section– .............................. 23
6-3. Printed Wiring Board  –Panel Section– ........................... 27
6-4. Schematic Diagram  –Panel Section– .............................. 29
6-5. IC Pin Function Description ............................................ 31

................................................ 33

................................ 36

•

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

•

Never reuse a disconnected chip component.

•

Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.

Outputs

Speaker outputs
(sure seal connectors)

Speaker impedance

4 – 8 ohms

Maximum power output

35 W 

×

 4 (at 4 ohms)

Outputs

Power antenna control
lead/Power amplifier
control lead/Telephone
mute control lead (E model only)
Rear line out (1)

Tone controls

Bass ± 8 dB at 100 Hz
Treble ± 8 dB at 10 kHz

Power requirements

12 V DC car battery
(negative ground)

Dimensions

Approx. 180 

×

 58 

×

 182 mm

(7 

1

/

2

 

×

 2 

3

/

8

 

×

 7 

1

/

4

 in.)

(w/h/d)

Mounting dimensions

Approx. 182 

×

 53 

×

 164 mm

(7 

1

/

4

 

×

 2 

1

/

8

 

×

 6 

1

/

2

 in.)

(w/h/d)

Mass

Approx. 1.3 kg (2 lb. 14 oz.)

Supplied accessories

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

Design and specifications are subject to change without notice.

– 3 –

This section is extracted
from instruction manual.

– 4 –