2
CDX-M50IP/MR50IP
If the optical pick-up block is defective, please replace the whole
optical pick-up block.
Never turn the semi-fixed resistor located at the side of optical pick-
up block.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
MW/LW (CDX-MR50IP)
Tuning range
MW: 531 – 1,602 kHz
LW: 153 – 279 kHz
Antenna (aerial) terminal
External antenna (aerial) connector
Intermediate frequency 10.7 MHz/450 kHz
Sensitivity
MW: 30 µV, LW: 40 µV
Power amplifier section
Outputs
Speaker outputs (sure seal connectors)
Speaker impedance
4 – 8 ohms
Maximum power output
52 W
×
4 (at 4 ohms)
General
Outputs
Audio outputs terminal (front, rear/sub
switchable)
Power antenna (aerial) relay control terminal
Power amplifier control terminal
Inputs
Telephone ATT control terminal
Illumination control terminal
BUS control input terminal
BUS audio input terminal
Remote controller input terminal
Antenna (aerial) input terminal
AUX input jack (stereo mini jack)
iPod signal input terminal (dock connector)
Tone controls
Low: ±10 dB at 60 Hz (XPLOD)
Mid: ±10 dB at 1 kHz (XPLOD)
High: ±10 dB at 10 kHz (XPLOD)
Power requirements
12 V DC boat battery (negative ground (earth))
Dimensions
Approx. 178
×
50
×
180 mm
(7
1/8
×
2
×
7
1/8
in.) (w/h/d)
Mounting dimensions
Approx. 182
×
53
×
162 mm
(7
1/4
×
2
1/8
×
6
1/2
in.) (w/h/d)
Mass
Approx. 1.4 kg (3 lb. 2 oz.)
Supplied accessories
Card remote commander: RM-X151
AUX cap
Parts for installation and connections (1 set)
MPEG Layer-3 audio coding technology and
patents licensed from Fraunhofer IIS and Thomson.
Design and specifications are subject to change without
notice.
iPod is a trademark of Apple Inc., registered in
the U.S. and other countries.
optical pick-up
semi-fixed resistor
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown and also use
the procedure in the printed matter which is included in the repair
parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SERVICE NOTES
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.
