Denon DR-M22 Service Manual
Specifications and Main Features
- Type: This unit is a Vertical tape loading 4-track 2-channel stereo cassette tape deck
- Heads:
- There is one unit of SF record playback combination head
- There is one unit of Erase head (Ferrite)
- There is one unit of Electronic servo DC motor (capstan)
- There is one unit of 5 pole dc motor (reel winding).
- Tape Speed: 4.8 cm/sec
- Fast forward, rewind time with C-60 casette are approx 90 sec
- Recording bias are approx 105 khz
- Overall S/N ratio is more than 73 dB for ccir/arm (3% thd level)
- Overall frequency response 30~ 19 000 +3 dB at approx. -20 dB metal tape
- Channel separation at 1 khz is more than 40 db at 1 khz
- Crosstalk at 1 khz is more than 65 db at 1 khz
- WOW & flutter- 0.045% wrms.
- IN :
- Line in maximum input level is 77.5 mV – 20 dB or more and input is 50 k ohms unbalance OUT :
- Line out maximum output level is 775 mV or O dB or more with 10 k ohms load and recorded level of 200 pwb/mm Head WEAR: Max output level 1.2 mW under 8 ohm up to 1.2 Kohm optimum load.
- Accessories: Parallel pin cord x2
- Power Source: Label shows voltage supports 50hz/60hz
- Power usage: 19 W
- Dimensions: 434 mm x 115 mm x 286 mm
- Weight: 5.6 kg
- Other specifications include:
- Servo technology controlled by a computer interface
- Dual-capstan tape transport system with feedback
- User friendly controls with a soft touch and almost silence in actuation
- Logic controlled functions of the tape machine
- The combination head assembly for recording and playback contains a new SF record/playback device to enable a three head configuration DENON makes use of.
- A 4-digit computing tape counter and a memory stop in the tape recorder
- Systems employing Dolby C type noise suppression.
- Extended range multi-color fluorescent peak meters.
- Automatic tape changer
- Good quality 5 pole reel motor, DC powered.
- Recording Bias adjustment
Frequently Asked Questions
Q: What is the tape loading mechanism of the device?
A: The device utilizes a vertical tape loading mechanism.
Q: About how long does it take a C-60 cassette to wind or rewind?
A: A C-60 cassette would take about a minute and a half to wind or rewind.
Q: What kind of noise reduction systems are integrated into the cassette tape deck?
A: The noise reduction accomplished in this tape deck is of Dolby-C type.
Q: What is the frequency response of the entire device?
A: The overall frequency response is 30~19,000 Hz +3 dB (at ~-20 dB with METAL tape).
Q: What is the power consumption of the device?
A: The averaged absolute consumption power over a period of 30 minutes is 19W.
Q: What is the jack’s maximum output level for the headphone?
A: The maximum output level for the headphone jack is 1.2 mW with an impedance of 8 ohm or greater than 1.2 K inohm.
Q: Which heads does the cassette deck employ?
A: The head used are SF Record/Playback Combination and the Ferrite Erase Head.
Q: How much is the device's signal-to-noise ratio under the condition that Dolby C noise reduction is on?
A: The signal-to-noise ratio with Dolby C noise reduction switched on is better than 73 dB (CCIR/ARM) under the relative distortion of 3 percent level.
User Manual
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