Author Topic: CPC 464 Tapes not loading, ERROR A and B -- FIXED -- Finally LA6324  (Read 659 times)

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Offline Bryce

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Re: CPC 464 Tapes not loading, ERROR A and B -- FIXED --
« Reply #25 on: 16:39, 17 November 18 »
If that helped a bit, then there's a good chance that C234 is damaged. Remove it and put the new capacitor in its place.

Bryce.

Offline Audronic

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Re: CPC 464 Tapes not loading, ERROR A and B -- FIXED -- NOT YET.
« Reply #26 on: 22:41, 17 November 18 »
@Bryce


Ok Thanks for that I Missed seeing the one on the Erase Power line.


I have been listening to the various tones that are sent on REPLAY and:-
it starts with a lower frequency warble before the Data ID and the same for the real Data.
On the Faulty Cassette Player the Lower Frequency part is MUCH lower in Volume than on a Good working Cassette Player.
I am also looking at C319 (Near PlayHead)as this would affect the Lower Frequency's if it had lost capacitance ?
and the 1 Meg Resistor R316.


Thanks.   Ray
 
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Offline Audronic

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Hi All


Finally fixed.
Replaced the Electro at the input to the Replay amp from .47uf (should have been .022uf) with a .1uf Greencap (small).
and finally the IC. LA6324.
Record and replay tests all passed --Phew.
Ps I did not put a socket on the board it looked like it would hit some Mechanical bits ??


Thanks for reading


Ray

Procrastinators Unite,
If it Ain't Broke PLEASE Don't Fix it.
I keep telling you I am Not Pedantic.
As I Live " Down Under " I Take my Gravity Tablets and Wear my Magnetic Boots to Keep me from Falling off.

Offline Bryce

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Correctly spotted. There isn't enough space for sockets on the amplifier PCB.

Bryce.