Philips MC 148 Stereo System User Manual


 
17
MC 148 / 37 page 17
English
TROUBLESHOOTING
WARNING
Do not open the set as there is a risk of electric
shock! Under no circumstances should you try to
repair the set yourself, as this will invalidate the
warranty
If a fault occurs, first check the points listed below before
taking the set for repair.
If you are unable to remedy a problem by following these
hints, consult your dealer or service center.
Problem Possible cause Remedy
No sound /power Volume not adjusted Adjust the VOLUME
Headphones connected Disconnect headphones
Power cord not securely plugged to wall outlet Plug in properly
No reaction to Electrostatic discharge Disconnect the unit from the mains supply,
controls reconnect affter a few seconds
Poor bass sound Speakers not in phase Connect speaker poles correctly: marked cable
to red terminal; unmarked cable to black
terminal
Severe radio hum or Electrical interference: set too close to TV, Increase the distance
noise VCR or computer
Poor radio reception Weak radio signal FM: Direct the FM antenna wire for optimum
reception
NO DISC indication CD badly scratched or dirty Replace/ clean CD, see Maintenance
CD-R(W) is blank or the disc is not finalised Use a finalised CD-R(W)
Laser lens steamed up Wait until lens has cleared
The CD skips tracks CD damaged or dirty Replace or clean CD
SHUFFLE or PROGRAM is active Switch off SHUFFLE / PROGRAM
Poor cassette sound Dust and dirt on the heads, etc. Clean deck parts, see Maintenance
quality Use of incompatible cassette type Only use NORMAL (IEC I) or CHROME (IEC II)
METAL (IEC IV ) for recording
CHECK TAPE Cassette tab(s) may be broken Apply a piece of adhesive tape over the missing
is displayed tab space
Tape door Power supply interruption or attempt to open Disconnect the unit from the mains supply,
will not open tape door during tape playback/ reconnect after a few seconds. Press OPEN
recording
Remote control does Batteries dead Insert fresh batteries
not function properly Batteries incorrectly inserted Insert the batteries correctly
Distance/ angle between the set too large Reduce the distance/ angle
TECHNICAL DATA
Amplifier
Output power . . . . . . . . . . . . . . . . . . . . . . 2 x 10 W RMS
Output power. . . . . . . . . . . . . . . . . . . . . . . . 200 W PMPO
Signal-to-noise-ratio . . . . . . . . . . . . . . . . . 65 dBA (IEC)
Input sensitivity AUX . . . . . . . . . . . . . . . . 0.5 V (max. 2 V)
Impedance loudspeakers . . . . . . . . . . . . . . . . . . . . . . 8
Impedance headphones . . . . . . . . . . . . . . . 32 -1000
Tuner
FM wave band . . . . . . . . . . . . . . . . . . . . . 87.5 - 108 MHz
AM wave band. . . . . . . . . . . . . . . . . . . . . . 530- 1700 kHz
Sensitivity at 75
– mono, 26 dB signal-to-noise ratio . . . . . . . . . . . . 2.8 µV
– stereo, 46 dB signal-to-noise ratio . . . . . . . . . . 61.4 µV
Selectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 dB
Total harmonic distortion . . . . . . . . . . . . . . . . . . . . . 5%
Frequency response. . . . . . . . . . . . 63 - 12,500 Hz (± 3 dB)
Signal-to-noise-ratio . . . . . . . . . . . . . . . . . . . . . 50 dBA
CD player
Frequency range. . . . . . . . . . . . . . . . 20 - 20,000 Hz (8 dB)
Signal-to-noise-ratio . . . . . . . . . . . . . . . . . . . . . . . 75 dBA
Tape deck
Frequency response . . . . . . . . . . . . . 80 - 12,500 Hz (8 dB)
Signal-to-noise-ratio (without Dolby NR)
– Normal tape (type I) . . . . . . . . . . . . . . . . . . . . . . 50 dBA
Wow and flutter. . . . . . . . . . . . . . . . . . . . . . . 0.4% DIN
Speakers
2-Way Bass reflex system
Dimensions (wxhxd). . . . . . . . . . . . . . . . . 155 x 220 x 220
General
Dimensions (wxhxd). . . . . . . . . . . . . . . . . 140 x 223 x 253
Weight (with / without speakers) . . . . approx 7.5 / 3.0 kg
Standby power consumption. . . . . . . . . . . . . . . . . . < 3 W
Subject to modification
XP MC 148/37 01-02-2000 12:09 Pagina 17