Troubleshooting; Specifications - Denon DRM-555 Operating Instructions Manual

ENGLISH

TROUBLESHOOTING

Check the following before you draw the conclusion that your Stereo Cassette Deck is malfunctioning.
1. Are all the connections correct?
2. Are all system components being operated correctly in accordance with the operating instructions?
3. Are the speakers and amplifier/receiver functioning correctly?
If the tape deck still does not function properly, check the symptom against the list below. If the symptom does not correspond to the check list, please contact your
DENON dealer.
Problem
Tape does not run.
Tape is not recorded when Rec/Rec Mute button
(REC/REC MUTE) ( ) is pressed.
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Sound is warbled or distorted.
Excessive noise.
High frequency range (treble) is emphasized.
High frequency range (treble) is lost.
The cassette tape cannot be removed.

SPECIFICATIONS

Type Vertical tape loading; 4-track 2-channel
stereo cassette tape deck
Heads Play back head x 1 recording/playback head x 1
Erase head (Double-gap ferrite) x 1
Motors DC servo motor x 1
Tape Speed 4.8 cm/sec.
Fast Forward,
Rewind Time Approx. 110 sec. with a C-60 cassette
Recording Bias Approx 105 kHz
Overall S/N Ratio
(at 3% THD level) Dolby C NR on: more than 74 dB (CCIR/ARM)
Overall Frequency
Response 20 ~ 17,000 Hz ±3 dB (at –20 dB, Metal tape)
Channel Separation More than 40 dB (at 1 kHz)
Wow & Flutter 0.08% WRMS, ±0.14% w. peak
Dolby noise reduction and HX Pro headroom extension manufactured under license from Dolby Laboratories Licensing Corporation. HX Pro originated by Bang &
Olufsen.
"DOLBY", the double-D symbol
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• Power cord is disconnected.
• Tape is loose.
• Cassette is not loaded properly.
• Defective cassette.
• No cassette is loaded.
• Erase prevention tabs are broken off.
• Heads, capstan or pinch roller are dirty.
• Tape is wound too tight.
• Recording input level is too high.
• Tape is worn out and has "drop-outs".
• Tape is worn.
• Heads, capstan or pinch roller are dirty.
• Heads are magnetized.
• Recording input level is too low.
• Dolby NR switch (DOLBY NR) is set improperly.
• Heads are dirty.
• Tape is worn.
• If the Power Operation switch is turned off either
during recording or playback and the unit is
stopped, there may be cases when the cassette
cannot be removed, even if the Eject button
(EJECT ) is pressed.
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* Above specifications and design are subject to change without prior notice.
and "HX PRO" are trademarks of Dolby Laboratories Licensing Corporation.
Cause
• Check power cord.
• Tighten tape with a pencil, etc.
• Load cassette properly.
• Replace cassette.
• Load cassette.
• Cover holes with adhesive tape.
• Clean them.
• Fast forward or rewind to loosen tape winding.
• Adjust recording input level.
• Replace tape.
• Replace them.
• Clean them.
• Demagnetize heads.
• Adjust recording input level.
• Set Dolby NR switch (DOLBY NR) properly.
• Clean them.
• Replace tape.
• Turn the Power Operation switch
and then press the Stop button (
• Now, press the Eject button (EJECT
the cassette tape.
Inputs
LINE 80 mV (–20 dBm) input level at maximum
Input impedance: 50 k /kohms unbalanced
Outputs
LINE 775 mV (0 dB) output level at maximum
(with 47 k /kohms load, recorded level of
200 pwb/mm)
PHONES 1.2 mW output level at maximum
(optimum load impedance 8 /ohms –1.2 k /kohms)
Power Supply 60 Hz, voltage is shown on rating label
Power Consumption 12 W
Dimensions 434 (W) x 135 (H) x 270 (D) mm
Weight 3.6 kg
Remedy
ON again,
¢
STOP).
2
) to remove
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