Albrecht AE-485S Display Lights

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highvoltageuk
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Albrecht AE-485S Display Lights

Post by highvoltageuk » 23 May 2018, 20:14

Hi I have a AE-485s with no supply to the display bulbs. Am i right is the Q407 2sc200 transistor the trouble :?:
Kenwood TS-680s
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zephyr
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Re: Albrecht AE-485S Display Lights

Post by zephyr » 23 May 2018, 22:10

Q407 sounds right to me but my memory is not that good these days.
It's the one that's very difficult to get at, i cut the legs off leaving as much as possible of them so the new transistor can be soldered to the old legs.

highvoltageuk
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Re: Albrecht AE-485S Display Lights

Post by highvoltageuk » 25 May 2018, 05:56

Thanks Zaphyr....Yes your right it is located between the volume & mic socket...What transistor did you replace it with ?
Kenwood TS-680s
Maas DX5000 v4

zephyr
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Re: Albrecht AE-485S Display Lights

Post by zephyr » 25 May 2018, 10:01

It's a long time since I changed one and I can't remember what transistor I fitted but it was a 1 amp NPN device.

highvoltageuk
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Re: Albrecht AE-485S Display Lights

Post by highvoltageuk » 28 May 2018, 21:44

Ok...Funny things happened today after the wideband mod D2 i broke 1 of the bulbs and reset the cpu then half the disply lights came on came on for 10 mins & then went off again.
Kenwood TS-680s
Maas DX5000 v4

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