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Hackcell

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My 2 daytona cages are no booting up, just return a red or a blank screen and the fans at full throttle.

The LEDs I can see on top of the cage are not even blinking.

What shall I check next?

Thanks!!

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C17730B5-FC29-4AE9-83C1-A62614B9BC42.jpeg
 
Not sure if its best keeping all this in your other project thread? I recall in the other thread something about a neckboard missing or not attached? is that still the case because obviously that will result in no image.

can't offer much helpful input on anything else as fortunately my model 2/3 stuff worked as is and so never had to do any real fault finding on them. What I will say though is I noticed these cabs are just 'loud' the fans just go full pelt with no speed control as such, my model 2 boards (daytona) got very warm.
 
I'd be contacting Ken from irepairsega

Most likely since these are heavily populated with SMD and BGA something is loose but you need specialist equipment to even look at these :(
 
Check your PSU for +3.3V, +5V - +12V not critical for boot - that's the first place to start

Then go onto looking for any LED activation on power up - there is a bank of around 8 I think - check them

Sounds like the boards are not booting up - poss dead CPU boards - they can be replaced with much less pain (financially) than the video boards - they are all step 2 - oh yes - check someone hasn't swapped the step 2 boards for step 1.0 or 1.5 - always worth a check in case you have these in cold

Were they running before?

J
 
Apologies I did not see the photos the first time around

Looks like you have power - can you look at the LEDs at the other end of the board - near the filterboard and on the same side as the comms board bank of LEDs that you have a pic of

They should be flashing and if they are step 2 - they are surface mount flat LEDs and no the through-hole standard type as per the comms board

J
 
Voltages are OK, however, there are 2 surface mount capacitors on the video board... both caps were blown :-/
 
Voltages are OK, however, there are 2 surface mount capacitors on the video board... both caps were blown :-/
I hope there isn't any damage from the capacitors (unless this isn't the kind that would leak on to the pcb and cause damage). It's possible to replace a surface mount cap with a regular cap: https://www.youtube.com/watch?v=mMMT1qLMX28
 
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