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Modification method: AE 5090 transformer version Switching between 1 Watts AM and 4 Watts AM General requirement : Radio must be equipped already with audio transformer (see drawing). The audio transformer has been introduced to series production from January 2003 on (e.g.
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AE5090-discriminator-adjustment hints Seite 1 von 2 Technische Mitteilung für AE 5090 / Technical information for AE 5090 Empfang klingt bei FM unsauber, besonders bei grösserem Frequenzhub / FM receiving sounds distorted, especially when FM deviation of partner station is high Ursache / causes: Die Abstimmung der Discriminatorspule ist sehr kritisch.
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Lamps vary in brightness and fail after short time of use Ursache / causes: Bei der ersten Serie des AE 5090 (betrifft nur Seriennummern, die mit 0106 ... beginnen) kann es vorkommen, dass die Lampensteuerung (Transistor Q 18 auf Front-Sub-PCB, direkt in der Ecke neben Kanalschalter) versagt.
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On the photo below You see a more elegant method. after cutting the jumper (not used), some holes become free and can be used for the resistor and the wire end. these PCB tracks connect already to Q 21/33. file://C:\Aktuelles\service-CD\albrecht-online.de\service\FAQ-s\AE5090-lamp\AE50... 14.02.2002...
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