HCD-RG30, MHC-DX20, MHC-RG30 - Sony Audio Service Manual (repair manual). Page 2

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Tape deck section
Recording system

4-track 2-channel stereo

Frequency response

40 – 13,000 Hz (

±3 dB), using Sony TYPE I

cassette

Tuner section
FM stereo, FM/AM superheterodyne tuner

FM tuner section
Tuning range

87.5 – 108.0 MHz

Antenna

FM lead antenna

Antenna terminals

75 ohm unbalanced

Intermediate frequency

10.7 MHz

AM tuner section
Tuning range
European and Middle Eastern models:

531 – 1,602 kHz (with the interval set at 9 kHz)

Other models:

531 – 1,602 kHz (with the interval set at 9 kHz)
530 – 1,710 kHz (with the interval set at 10 kHz)

Antenna

AM loop antenna

Antenna terminals

External antenna terminal

Intermediate frequency

450 kHz

General
Power requirements
European models:

230 V AC, 50/60 Hz

Mexican models:

120 V AC, 50/60 Hz

Other models:

120 V, 220 V or 230 – 240 V AC, 50/60 Hz
Adjustable with voltage selector

Power consumption
European models:

110 watts
0.5 watts (at the Power Saving Mode)

Other models:

110 watts

Dimensions (w/h/d)

Approx. 280 x 325 x 421 mm

Mass
European models:

Approx. 8.5 kg

Other models:

Approx. 8.5 kg

Supplied accessories:

AM loop antenna (1)
Remote Commander (1)
Batteries (2)
FM lead antenna (1)
Front speaker pads (8)

Design and specifications are subject to change without notice.

This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.

Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.

CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radia-
tion exposure.

Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270˚C

during 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.

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down 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.

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, ob-
serve from more than 30 cm away from the objective lens.