Ok this original bombjack has a few issues, but I'm determined to get it working. Armed with my new dataman programmer, its given me a bit more scope, reading and writing eproms that I couldn't do before. I've already spotted a fair few fajitsu's on this board.
Here is a short video of it running.
First I notice on the test screen that the color pallette is all red.
It should be red, green, blue then white.
I was drawn to the 4 ls153's right in the centre of the top board.
Low and behold I found dead outputs on pins 7 and 9 of two of the fajitsu's @ 5h and 5k.
Mistakenly label them pin 8 but the outputs are pin 9 as you can see below.
A quick piggyback and its busy outputting again.
And now we have some color back.
Unfortunately I only had one ls153, so I'll have to leave it here, until I can get hold of some more.
Shinydaz2017-07-01 04:50:21
Here is a short video of it running.
First I notice on the test screen that the color pallette is all red.
It should be red, green, blue then white.
I was drawn to the 4 ls153's right in the centre of the top board.
Low and behold I found dead outputs on pins 7 and 9 of two of the fajitsu's @ 5h and 5k.
Mistakenly label them pin 8 but the outputs are pin 9 as you can see below.
A quick piggyback and its busy outputting again.
And now we have some color back.
Unfortunately I only had one ls153, so I'll have to leave it here, until I can get hold of some more.
Shinydaz2017-07-01 04:50:21