Marantz SD4050 - Manuel (Page 14)

14
ENGLISH
F
RAN
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AIS
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 MARANTZ dealer.
TROUBLESHOOTING
Type Vertical tape loading; 4-track 2-channel stereo double
cassette deck
Heads Play back head ҂1 recording/playback head ҂1
Erase head (Double-gap ferrite) ҂1
Motors DC servo motor ҂2
Tape Speed 4.8 cm/sec. 9.5 cm/sec. (When high speed dubbing)
Fast Forward,
Rewind Time Approx. 110 sec. with a C-60 cassette
Recording Bias Approx. 100 kHz
Overall S/N Ratio
(at 3% THD level) Dolby C NR on: more than 74 dB (CCIR/ARM)
Overall Frequency
Response 25 ~ 18,000 Hz Ȁ3 dB (at Ҁ20 dB, Metal tape)
Channel Separation More than 40 dB (at 1 kHz)
Wow & Flutter 0.09 % WRMS, Ȁ0.1 % w. peak
* 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.
Inputs LINE 100 mV input level at maximum
Input impedance: 50 kohms unbalanced
Output LINE 460 mV (0 dB) output level at maximum
(with 47 kohms load, recorded level of
200 nWb/mm)
PHONES 0.95 mW output level at maximum
(optimum load impedance 8 ohms ~ 1.2 kohms)
Power Consumption 0.13 A
Dimensions
17- 7 / 16 (W) ҂ 5- 5 / 16 (H) ҂ 12- 9 / 16 (D) inches
440 (W) ҂ 124 (H) ҂ 286 (D)
Weight 8.58 lbs oz (4.0 kg)
SPECIFICATIONS
Problem
Tape does not run.
Tape is not recorded when REC MUTE button is
pressed.
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.
¼
Power cord is disconnected.
¼
Tape is loose.
¼
Cassette is not loaded properly.
¼
Defective cassette.
¼
No cassette is loaded.
¼
Erase prevention tab is broken off.
¼
Heads, capstan or pinch roller are dirty.
¼
Tape is wound too tight.
¼
Recording input level is too high.
¼
Tape is worn out and has “drop-outs”.
¼
Tape is worn.
¼
Heads, capstan or pinch roller are dirty.
¼
Heads are magnetized.
¼
Recording input level is too low
¼
Dolby NR switch iis set improperly
¼
Heads are dirty.
¼
Tape is worn.
¼
If the POWER switch is turned off either during
recording or playback, and the unit is
stopped, there may be case when the
cassette cannot be removed, even if the
EJECT ( ) button is pressed.
¼
Check power cord.
¼
Tighten tape with a pencil, etc.
¼
Load cassette properly.
¼
Replace cassette.
¼
Load cassette.
¼
Cover hole with adhesive tape.
¼
Clean them.
¼
Fast forward or rewind to loosen tape winding.
¼
Adjust recording input level.
¼
Replace tape.
¼
Replace tape.
¼
Clean them.
¼
Demagnetize heads.
¼
Adjust recording input level.
¼
Set Dolby NR switch properly.
¼
Clean them.
¼
Replace tape.
¼
Turn the POWER switch ON again, and then
press the STOP ( ) button.
Now, press the EJECT ( ) button to remove
the cassette tape.
Cause Remedy