"Chupo" wrote in message
...
Hi everyone,

since a few days ago I cannot listen to any of the FM stations. Here is
what I could notice:

-MW & LW are OK

- FM sometimes works, but not for a long time (10 sec - few minutes)

- just before loosing an FM station, there is a time period of about 10
sec during which 'input level indicator' slowly arises towards the
maximum and in the same time the station fades out - afterwards, there
is only a silence

- after the station fades out: if I use a preset FM station, there is a
'full signal' indicator on the LCD, but if I try 'search', searching
starts and it searches for the infinite time (going all around through
all FM scale)

- if I am listening to a MW or a LW for a certain time period: then FM
is OK, but only for a certain time period

- longer the time period of listening to a MW or a LW station is,
longer I can use FM mode (no joke :-) ) before it fades out as
described before

I have checked the antenna and other junctions. Does anyone know where
could the problem be? Could it be a capacitor (the fading pattern makes
me think something is slowly charging, something like an RC node). Or
maybe a PLL module? Just guessing.

ps
Sorry about my English

Thank you,
--
Chupo

If you have a bench power supply which can put out 12V or 13.8V then it will
make troubleshooting a lot easier than trying to do it in the car.

The fault could be of a thermal nature, so heating parts of the circuitry
with a heat gun or hair dryer until the fault starts, then cooling
individual components with freeze spray should help you find the bad
component.

Your English is perfectly understandable by the way, no need to apologise at
all. Bear in mind that most of us native English speakers cannot be bothered
to learn a second language, so I admire anyone who can master English to the
degree you have.

Dave