Denon DRM-555 Operating Instructions - Page 16
Troubleshooting, Specifications - 2 head 2 motor cassette deck
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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. Cause • Power cord is disconnected. • Tape is loose. • Cassette is not loaded properly. • Defective cassette. Remedy • Check power cord. • Tighten tape with a pencil, etc. • Load cassette properly. • Replace cassette. Tape is not recorded when Rec/Rec Mute button • No cassette is loaded. (REC/REC MUTE) ( 4 ) is pressed. • Erase prevention tabs are broken off. • Load cassette. • Cover holes with adhesive tape. Sound is warbled or distorted. • 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". • Clean them. • Fast forward or rewind to loosen tape winding. • Adjust recording input level. • Replace tape. Excessive noise. • Tape is worn. • Heads, capstan or pinch roller are dirty. • Heads are magnetized. • Recording input level is too low. • Replace them. • Clean them. • Demagnetize heads. • Adjust recording input level. High frequency range (treble) is emphasized. • Dolby NR switch (DOLBY NR) is set improperly. • Set Dolby NR switch (DOLBY NR) properly. High frequency range (treble) is lost. The cassette tape cannot be removed. • Heads are dirty. • Tape is worn. • Clean them. • Replace tape. • 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 5 ) is pressed. • Turn the Power Operation switch ¢ ON again, and then press the Stop button ( 2 STOP). • Now, press the Eject button (EJECT 5 ) to remove the cassette tape. 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 Inputs LINE 80 mV (-20 dBm) input level at maximum Input impedance: 50 kΩ/kohms unbalanced Outputs LINE 775 mV (0 dB) output level at maximum (with 47 kΩ/kohms load, recorded level of 200 pwb/mm) PHONES 1.2 mW output level at maximum (optimum load impedance 8 Ω/ohms -1.2 kΩ/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 * Above specifications and design are subject to change without prior notice. 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 and "HX PRO" are trademarks of Dolby Laboratories Licensing Corporation. 16