Denon D-C30 Service Manual

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Specifications and Main Features

Tuner Section:
The tuner section supports three bands, they include FM MW and LW for Europe and UK, FM SWMW for Australia and Asia and FMAM for the USA and has the following range supported, FM 87.5-108 MHz, MW 522-1611 kHz and LW 153-281 kHz for UK and Europe.
As for tuning sensitivity, it has Iso Am microphones of 1.5 and MW and loop antennas of 1400 over M, LW of 5000 M and EU and UK.
Tape Deck Section:
The system has a total of four track interiors, with two inner channels.
It Allows an audios recording with a AC bias system which uses an AC erase interlink. The Band works at a tape speed of 4.75 CM and a frequency response of 40 being 15,000 and 40 being 16,000 in normal audio mode. A s/n ratio of 63 is maintained.
Amplifier Section:
The value of sensitivity impedance and a mic is around 3 m min while an AUX is around 400 MV and audio output obtained is around 37w over 36w and THD of 1%.
Moreover, external amp speakers can be used if impedance is between 6-16 ohms while headphones with 8-100 ohm impedance are suitable.
An overall value of impedance input is a 10 K ohm.
Input section features of AUX around 400 MV.
TIMER SECTION:
This device features having a digital quartz clock complimenting a 24 hour cycle for EU, UK and surrounding regions and offers a 12 hour cycle for Australia, Asia, and CRO.
CD Player Section:
Two channels of a CD player are available
Frequency Range: 20Hz to 20kHz
Disc Compatibility: 8cm and 12cm Optical Discs
Laser Diode: 785 nm
Maximum Laser Output: 175 PW

General Specs:

AC Input Power Requirements:
230V at 50Hz (Europe and U.K)
between 110 - 120V at 50/60Hz and between 220-240V at 50/60Hz (Australia, Asia)
120V at 60Hz (USA)
Maximum Consumption Capability: 74W for Europe, UK, Australia, and Asia; whereas 80W for the USA.
Equipment Size:
HTC-C22: 225mm is width, 175mm in height and 317mm in depth.
HAD-C22: 225mm is width, 175mm in height and 366mm in depth.
Weight:
HTC-C22: 3.3 kg
HAD-C22: 5.8 kg

Speaker:

Speaker Type: Bass reflex three way speaker
Peak Input Rating: 50 W at a musical signal
Resistance Level: 6 Ohms

Additional Accessories:

One AM Loop Antenna
One FM Indoor Antenna (available for UK, Australia, Asia and USA only)
One Remote Control

Frequently Asked Questions

CD Player Disc Compatibility
Standard sized 12 cm and 8cm discs can be read with ease on the CD player.
Q: What should I do if the CD player displays an "Err" message?
A: In case an 8 cm disc is inside the player remove it and shut the CD tray.
Q: How can I preset radio stations?
A: If you want to store a radio frequency, simply tune in to that station and within 5 seconds press the MEMORY button. A maximum of 12 stations can be stored on both FM and AM bands each.
Q: Can I play multiple discs at once?
A: Yes, the CD player has a Long play mode which allows for a total of 6 discs to be played continuously.
Q: How do I switch between FM and AM bands?
A: To go between FM and AM, press the TUNER BAND button as often as is necessary until the desired circuit is activated.
Q: What is the function of the karaoke feature?
A: With regard to karaoke the mid frequency reduction enables you to always sing along with any audio you want to use.
Q: How can I adjust the sound settings?
A: These equalizer settings can be adjusted on the graphic equalizer to achieve a desired sound for the five preprogrammed options of FLAT, HEAVY, MILD, CLEAR and VOCAL.