CX-LDB30, CX-LDB50, XR-DB30, XR-DB50 - Sony Audio Service Manual (repair manual). Page 2

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2
CX-LDB30/LDB50
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  PUBLISHED  BY  SONY.
Frequency response
20 Hz – 20 kHz
Signal-to-noise ratio
More than 90 dB
Dynamic range
More than 90 dB
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
100 – 10,000 Hz, using 
Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz 
(50-kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
European model:
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz) 
Other models:
530 – 1,710 kHz 
(with the tuning interval 
set at 10 kHz)
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz)
Antenna
AM loop antenna, external 
antenna terminal
Intermediate frequency
450 kHz 
General
Power requirements
European model:
AC 230 V, 50/60 Hz
Other models:
AC 120, 220 or 
230 – 240 V, 50/60 Hz
Adjustable with voltage 
selector
Power consumption
XR-DB50
European model:
85 W 
0.3 W (in Power Saving 
mode)
Other models:
85 W
XR-DB30
European model:
70 W
0.3 W (in Power Saving 
mode)
Other models:
70 W
Dimensions (w/h/d) excl. speakers:
Approx. 190 x 277 x
269 mm
Mass excl. speakers
CX-LDB50:
5.4 kg
CX-LDB30:
5.1 kg
Design and specifications are subject to change 
without notice.
• Standby power consumption: 0.3 W
• Halogenated flame retardants are not 
used in the certain printed wiring boards.
• Lead-free solder is used for soldering 
certain parts.
• Halogenated flame retardants are not 
used in cabinets.
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