Read Sony XR-3753 / XR-C353 Service Manual online
MICROFILM
XR-3753/C353
East European Model
SERVICE MANUAL
FM/MW/LW CASSETTE CAR STEREO
SPECIFICATIONS
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
MG-25A-136
General
Outputs
Power aerial control lead
Power amplifier control
lead (XR-C353 only)
Telephone mute control
lead (XR-C353 only)
Line out (XR-C353 only)
Power amplifier control
lead (XR-C353 only)
Telephone mute control
lead (XR-C353 only)
Line out (XR-C353 only)
Tone controls
Bass ± 8 dB at 100 Hz
Treble ± 8 dB at 10 kHz
Treble ± 8 dB at 10 kHz
Power requirements
12 V DC car battery
(negative ground)
(negative ground)
Dimensions
Approx. 188
×
58
×
181 mm (w/h/d)
Mounting dimensions
Approx. 182
×
53
×
164 mm (w/h/d)
Mass
Approx. 1.2 kg
Supplied accessories
Parts for installation and connections (1 set)
Front panel case (1)
Rotary commander
RM-X2S
Front panel case (1)
Rotary commander
RM-X2S
Design and specifications are subject to change without notice.
Photo: XR-3753
Cassette player section
Tape track
4-track 2-channel stereo
Wow and flutter
0.08 % (WRMS)
Frequency response
30 – 20,000 Hz
Signal-to-noise ratio
58 dB
Tuner section
FM
Turning range
65.0 – 74.0 MHz
(at 30 kHz step)
87.5 – 108.0 MHz
(at 50 kHz step)
(at 30 kHz step)
87.5 – 108.0 MHz
(at 50 kHz step)
Aerial terminal
External aerial connector
Intermediate frequency 10.7 MHz
Usable sensitivity
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
65 dB (stereo),
68 dB (mono)
68 dB (mono)
Harmonic distortion at 1 kHz
0.5 % (stereo),
0.3 % (mono)
0.3 % (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
Capture ratio
2 dB
MW/LW
Tuning range
MW: 531 – 1,602 kHz
LW: 153 – 281 kHz
LW: 153 – 281 kHz
Aerial terminal
External aerial connector
Intermediate frequency 10.71 MHz/450 kHz
Sensitivity
Sensitivity
MW: 30 µV
LW: 50 µV
LW: 50 µV
Power amplifier section
Outputs
Speaker outputs
(sure seal connectors)
(sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output 35 W
×
4 (at 4 ohms)
For RM-X2S (Remote Commander),
please refer to RM-X2S/X3S Service
Manual (9-960-039-
please refer to RM-X2S/X3S Service
Manual (9-960-039-
∏
) previously issued.
– 2 –
TABLE OF CONTENTS
1.
GENERAL
Location of Controls ........................................................ 3
Setting the Clock ............................................................. 3
Using the Rotary Remote ................................................ 3
Adjusting the Sound Characteristics ............................... 4
Muting the Sound ............................................................ 4
Changing the Sound and Beep Tone ................................ 4
Installation ....................................................................... 5
Connections ..................................................................... 6
Setting the Clock ............................................................. 3
Using the Rotary Remote ................................................ 3
Adjusting the Sound Characteristics ............................... 4
Muting the Sound ............................................................ 4
Changing the Sound and Beep Tone ................................ 4
Installation ....................................................................... 5
Connections ..................................................................... 6
2.
DISASSEMBLY
.......................................................... 9
3.
ASSEMBLY OF MECHANISM DECK
............. 11
4.
MECHANICAL ADJUSTMENTS
....................... 14
5.
ELECTRICAL ADJUSTMENTS
Test Mode ........................................................................ 14
Tape Deck Section ........................................................... 14
Tuner Section ................................................................... 15
Tape Deck Section ........................................................... 14
Tuner Section ................................................................... 15
6.
DIAGRAMS
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
7.
EXPLODED VIEWS
................................................ 33
8.
ELECTRICAL PARTS LIST
................................ 36
SERVICING NOTES
Flexible Circuit Board Repairing
•
Keep the temperature of the soldering iron around 270 ˚ C during
repairing.
repairing.
•
Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
circuit board (within 3 times).
•
Be careful not to apply force on the conductor when soldering or
unsoldering .
unsoldering .
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.
aged by heat.
– 3 –
SECTION 1
GENERAL
This section is e
xtr
acted
acted
from instr
uction man
ual.
– 4 –