Preventive Maintenance - Philips DC612 Operating Instructions Manual

Car systems
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CHECKS BEFORE REQUESTING SERVICE
There may be times when you suspect that your car radio is not functioning as ie expect it to. Before
alin for service please read the operating / mounting instructions and check the following list. You
may find that an apparent malfunction can easily be rectified.
[Symptoms
|
Fonsible Cause 7 Remed
| General
Check fuse (set and cir) and connections.
Set functions but with no or poor sound.
© Adjust volume of set.
© Check fader and balance settings.
. © If car phone is connected, check setting for 'PHONE' option
in 'INIT' mode.
@ Set 'PHONE' option to 'NO' in 'INIT' mode.
Some heat is always generated by the set.
© Check that the aerial is fully extended and properly connected.
Display shows 'SEARCH' and station
Set is searching for the Station. This happens when broadcast is too weak.
name alternate
© Wait until set completes its search.
Display shows frequency (not station
Set is tuned to non-RDS station.
name}
Emergency
announcements (PTY Alarm) is being broadcast.
Unable to tune to desired station with
~— The desired station is too weak.
Search tuning.
© Repeat Search tuning with local search mode (LOC) OFF.
® Tune to desired station using Manual Search.
— Set is in TA mode: only stations with Traffic Announcements can be tuned in.
© If necessary switch OFF TA mode.
© Check that the aerial is fully extended.
Displays shows "NO TA' and set bleeps. | Set is in TA mode but the selected station does not broadcast
Traffic Announcements (TA).
© Switch OFF TA mode or tune to another station.
Cassette playback lacks high-notes or
* Clean cassette player tape head.
loss of one channel.
Cassette mechanism changes direction
Rewind cassette to the end of the tape.
of play before end of tape.
Display shows 'NO DISC' or
NoCD inserted or CD inserted upside-down or damaged or
'CD ERROR', or you hear a beep.
dirty or of the wrong
type.
Distorted sound during playback.
Player unable to read disc. CD damaged or dirty.
If you still have to send your set for service, always send the complete set {with detachable keyboard).
Do not try to open the set fo service it yourself.
PREVENTIVE MAINTENANCE
Cleaning connectors for detachable keyboard.
To ensure good connection between the set and the detachable part, it is advisable to clean the
connectors with a cotton swab from time to time.
Cleaning cassette player tape head (and tape path).
Dust, contamination or grime can accumulate on the tape head after extended use of the cassette
player.This results in diminishing high-note reproduction.
In the case of severe contamination,
reproduction of one or both channels may totally fail.
* Clean the tape head {once or twice a month} using only wet-type cleaning cassette.
'only for certain versions.

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