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CPC 464 Tapes not loading, ERROR A and B -- FIXED -- Finally LA6324

Started by Audronic, 04:59, 11 November 18

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Bryce

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.

Audronic

@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
 
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.

Audronic

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.

Bryce

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

Bryce.

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