8-bit acorn hardware • Re: Black screen, no led lights, but do have the two beeps

oke video and picture hard to read/ watch

if you go back to where the beeb did go two sounds , something with s21 you change

As I stated in a previous post, it was S20-North, S21-West(top)/West(bottom), S22-North. That's how I got it. In another post, someone told me it should be S20-North, S21-East/West, S22-North. So, I moved the top jumper for S21 to East. When that happen and booted it up, I got
that long continuous beep. So, after that, I switched it back to West/West for S21. It went back to the two beeps.

change it back , do you have then two sounds again ??

See previous reply.

on the video i see only pin 21 the clk is good ! the rest i can't follow well

measure pin 20 , is it 5 volt ?
pin 1 is it gnd ?

all pin 2 and 3

When I tested the voltage for pin 20, it came up to be 4.864.

pin 1

Not much activity, so that must mean it's grounded, I guess?

pin 2

There wasn't much activity for pin 2 as well.

pin 3

There were some activity from pin 3


This is coming from the same video I posted on vimeo and youtube:

Pin 21:


Pin 22:


Pin 23:


Pin 24:


Pin 25:


Pin 26:


Pin 27:


Pin 28:


Pin 29:


Pin 30:


Pin 31


Pin 32


Pin 33

Statistics: Posted by shadow-breeze — Tue Jun 25, 2024 5:49 am

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