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  • minimax replied to the topic Alarm problem? in MGF/TF Pitstop
    Ta Psymon!
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  • minimax replied to the topic Alarm problem? in MGF/TF Pitstop
    Not a faulty microwave. Wrong times of day. Cats around here are too lazy to jump on the roof of anything. Not that either. Car parked garage side of residential area so the steel door of the garage will shield most microwave signals.  Has to be an internal effect as the alarm hasn't gone off again. I shall try reconnecting it once the seat has been replaced.
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  • The car sold on for what he paid for it. I liberated a better rear tub seal and the later steering wheel airbag with the badge in the middle.  
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  • minimax replied to the topic fixing radio in MGF/TF Pitstop
    It should be but allowing for voltage drop through the ignition switch and the usual spindly  connections  to car radios, a hard working  set can easily pull the supply down half a volt at its terminals. it only takes .1 of an Ohm at 5 Amps to do so. after all. I would expect to see above 14 Volts on mine as I use good cable and connectors. (Not the hyped up trash for the gullible, thirteen Amp mains cable is entirely suitable for a hundred Watt load.)
    I expect that the unit has been turned up to max and wrecked the factory speakers, if I'm honest..
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  • minimax replied to the topic fixing radio in MGF/TF Pitstop
    Ugh! This is going to be  a bit difficult. What is a Watt? What is an Ohm? a 50 Watt output might be about 10 Watts RMS, the only proper measurement. 4x22Watts is actually almost indistiguishable from 4x50Watts  as you should know. Assuming a modern class D amplifier, you will be drawing four Amps at least from the supply at 12 Volts. If you are running off a bench power supply, it will need to be adequate. Are you running into the correct speaker impedance? Have you taken the door cards off  and the T-bar cover likewise and checked the condition of the speaker cones? I have often found them to be pretty tattered. How are you measuring the distortion? Bruel and Kjaer distortion analyser or a scope on the speaker leads? What are you using as a load for these checks ? What is the signal source? Signal generator set to line level?  I doubt VERY much if there is anything wrong with the Pioneer kit. I use it myself in my car and it sounds fine. If your battery is not going flat then the  voltage is correct anyway. Why do you think that something is wrong?  If you are getting distortion, you have either poor speakers or poorly made power connections. The nominal alternator voltage will be over 13.5 volts at the radio's power terminals with the engine running.
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  • minimax replied to the topic Alarm problem? in MGF/TF Pitstop
    Well, it didn't go off in the night and it has been quiet all day, so I am keeping my fingers crossed. It takes half an hour to get the lock out and ten minutes to strip it down. TAKE PHOTOS! once the two halves are carefully separated, the block of three switches  can be removed and each button worked hard for a couple of minutes. Reassemble, reconnect and test to ensure that the various levers go up and down as they should. this appears to have fixed the problem. I am looking into finding replacement switches as these are the bits that go wrong.
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  • minimax thanked the user Roverlike in the forum post, Alarm problem?
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  • minimax thanked the user David Aiketgate in the forum post, Alarm problem?
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  • minimax replied to the topic Alarm problem? in MGF/TF Pitstop
    Or you can study the circuit diagram and measure the resistance from socket to sensor, operate each sensor and check the function and measure the supply voltage and earth connections.
    Like a proper auto electrician would do.

    The system has worked on my car and many others for over twenty years without any attention. Not many mechanisms or electronic assemblies can boast that. 

    Stripping the door lock and working the three switches hard for a couple of minutes appears to have cured the problem, probably wiping a bit of tarnish from the contacts.
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