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Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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21st Oct 2017, 3:19 pm | #1 |
Retired Dormant Member
Join Date: Jan 2012
Location: Whissonsett, Dereham, Norfolk, UK.
Posts: 128
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Vexed by an Akai GX210D.
Recently aquired, worked fine out of the box. Went to it the second time and everything functions ie REW, FF, stop and play, but no sound, no meter movement and not even any sound through headphones. Auto reverse doesn't work either although it did first time i tried it. Any pointers please? The power supply has already been recapped and the machine had a good clean and lube.
Annoying! Thanks. |
22nd Oct 2017, 2:18 am | #2 |
Octode
Join Date: Jul 2006
Location: Perth, Western Australia
Posts: 1,971
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Re: Vexed by an Akai GX210D.
Silly questions but since it stopped producing a signal, have you checked the heads for cleanliness? Is the tape threaded correctly?
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22nd Oct 2017, 8:34 am | #3 |
Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,675
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Re: Vexed by an Akai GX210D.
First suspect has to be the supply to the electronics - were all the new caps put in the right way round? Is DC present on the audio
boards? |
22nd Oct 2017, 10:05 am | #4 |
Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,991
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Re: Vexed by an Akai GX210D.
The muting circuit could be at fault, see no.7 or even the "From Reverse to Forward Playback" see no.4
__________________
Stephen _________"It`s only an old telly" ___ |
23rd Oct 2017, 1:28 pm | #5 |
Retired Dormant Member
Join Date: Jan 2012
Location: Whissonsett, Dereham, Norfolk, UK.
Posts: 128
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Re: Vexed by an Akai GX210D.
Thanks all, will look at your suggestions and report back.
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29th Oct 2017, 2:32 pm | #6 |
Retired Dormant Member
Join Date: Jan 2012
Location: Whissonsett, Dereham, Norfolk, UK.
Posts: 128
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Re: Vexed by an Akai GX210D.
OK. After some testing I've dicovered there's no current at the playback amp board. There's 80V! at the centre pin of the transistor on the power supply board, more than there should be, the outer pins appear dead. I've shelved it for now.
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