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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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26th Oct 2018, 2:25 pm | #1 |
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Join Date: May 2018
Location: Norwich, Norfolk, UK.
Posts: 605
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A77 Input issues.
My A77 is doing some weird stuff again .
When I have both record switches in , all is well . Both sides have input . When I have both record switches out , input is only on the left side , both audibly and in the VU`s . Any ideas ? |
26th Oct 2018, 7:18 pm | #2 |
Moderator
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,224
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Re: A77 Input issues.
I would think the switches are faulty, its the same signal, they are added or crossed over depending on how they're set.
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26th Oct 2018, 10:27 pm | #3 |
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Join Date: May 2018
Location: Norwich, Norfolk, UK.
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Re: A77 Input issues.
Hi bud , I`ve changed the switches so I don`t think thats it , thats was my first thought too so I changed them for known good ones . On this model they cross over so channel one works channel two when you have them in the out position . I`ll go over the switches again but I`m pretty sure thats not it . Bit weird though huh .
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26th Oct 2018, 11:31 pm | #4 |
Moderator
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,224
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Re: A77 Input issues.
Cracked track on the PCB? Cant see it can be anything else.
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27th Oct 2018, 3:19 am | #5 |
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Join Date: May 2018
Location: Norwich, Norfolk, UK.
Posts: 605
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Re: A77 Input issues.
found it , there was a resistor that was only soldered in one end , all back to normal .
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1st Nov 2018, 9:35 am | #6 |
Hexode
Join Date: Oct 2013
Location: Peterborough, Cambridgeshire, UK.
Posts: 336
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Re: A77 Input issues.
Hah the dreaded dry joint problem, should stick them in a tin then they will smoke much better, sorry my idea of levity.
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1st Nov 2018, 11:32 am | #7 |
Banned
Join Date: May 2018
Location: Norwich, Norfolk, UK.
Posts: 605
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Re: A77 Input issues.
I think the person that changed that resistor did , it wasn`t a dry joint, it was only soldered in one end ...lol...i think up to that point it was working on will more than anything ...hehe
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1st Nov 2018, 12:22 pm | #8 |
Octode
Join Date: Dec 2017
Location: Morden, Surrey, UK.
Posts: 1,558
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Re: A77 Input issues.
I did find a fairly dry joint in the bottom of a Leevers Rich once - the studio owner said "Oh yes I thought I was missing one in a session a couple of weeks ago..."
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1st Nov 2018, 1:23 pm | #9 |
Banned
Join Date: May 2018
Location: Norwich, Norfolk, UK.
Posts: 605
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Re: A77 Input issues.
hahah ....amazing
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