hartman:

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Hi!

My PM6666 kommt nechste woche erst, so ich habe mir uberlegt extra radio mit digital readout zu nehmen, is tricky gehe aber auch!

derby: 88 MHz 2nd radio: 95,7 MHz
derby: 92 MHz 2nd radio: 99,7 MHz
derby: 96 MHz 2nd radio: 103,7 MHz
dervy: 100 MHz 2nd radio: ca 107,8 MHz

So 3 MHz shift to IF (10,7 MHz), no jumps in freq. total.

Best regards

Jon

roehrenfreak:

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Hi Jon,

this appears to me as if someone "retuned" the radio in order to receive non-public radio services like e.g. fire fighters, medical emergency or police (which is strictly forbidden!). In former times these services were allocated in Germany to frequencies near&below the lower end of the FM-Broadcast Band (87,5MHz).

As soon as I have the opportunity to have a closer look to my "Derby", I'll take some pics together with information for you how to rectify the problem with your set. So - "please, stay tuned..."

Best regards

...and here a nice pic of the tuner details:



Important note: Alignment must be done with the aluminum-cover correctly installed!
Hope this together with Ronn's schematic will help you to fix the problem


Kind regards and good luck!

Datei-Anhänge

blaupunkt derby_tuner_details.jpg (184x) Mime-Type: image/jpeg, 103 kB