I wonder if your voltage regulator is not working properly? did you fit an AMS1117 3.3v regulator? I can see a regulator there, just wondering if its 1.8v or something instead of 3.3v? The only other possibility is there's a short (solder blob / particle) somewhere there shouldn't be, or a bad connection on one of the NVPROM / CPLD chips. Re-tracing your steps and inspecting very closely is what's required I think, and check that there are no shorts where there shouldn't be. Might be worth removing the voltage regulator and putting 2 diodes back in to see if that sorts it.I reset the backup memory, and also took of all three 47pF caps, but I still get the freezing with bank error as soon as the game starts. Any suggestions gratefully received!
I think the 161 in 1 clears the backup RAM anyway - although I am not 100% sure on that. With regards to the DIP settings on each game, you are best using a Unibios, hold down some of controller buttons (I forget which, I just do it instinctively lol) on power up and alter the soft dips. But settings are not saved I think.Sorry if this is a hair off topic, but I have that 161in1 cart and I know it easily has been brought up before at a place like this, but the difficultly on a per game basis is all over the board, but a good many annoyingly are set to LV8. Is there any way on a standard cabinet to mess with this cart to reset those, or are you bound by the 8 game memory of soft dips the MVS does and it will just roll out of there beyond that point? I recall seeing somewhere through google someone thought you could go into a menu (may have been a smaller in 1) and go one by one and do it but I find that unlikely.
I wonder if your voltage regulator is not working properly? did you fit an AMS1117 3.3v regulator? I can see a regulator there, just wondering if its 1.8v or something instead of 3.3v? The only other possibility is there's a short (solder blob / particle) somewhere there shouldn't be, or a bad connection on one of the NVPROM / CPLD chips. Re-tracing your steps and inspecting very closely is what's required I think, and check that there are no shorts where there shouldn't be. Might be worth removing the voltage regulator and putting 2 diodes back in to see if that sorts it.
Wrong thread/off topic. However: If you have a legit cart that works (and the 161in1 works as well) your 120in1 has the issue, obviously. Send it back to the seller and ask for a replacement - these bootlegs are prone to failure. You could check if your board has enough power (5V line), but I'm pretty sure your cart is dead.On the game select screen the up down reacts very delayed. I cant go past game 5 or so. Buttons dont do anyrhing. StartcButton turns the screen black and the list jumps to 69 or so ... Is my module broken?
Mods look OK! It looks like there are cap positions on that PCB for the 2 x 47pF caps to fix the PCM issue. See C5 and C6 (or is it C4, I cannot see the number). Test with connectivity, but I suspect those are connected to the 2 PCM lines you bypassed with the 47pF caps. The 120 in 1 has positions for the caps there, I just never noticed them on this new board until now. Also it looks like it is a new board revision so you might have some additional ringing or parasitic capacitance issue on that board. Is there any chance you could upload a recording (video or audio) of the problem with Puzzle Bobble? I don't remember crackling issues with that game. There's also a chance that you've just got a slightly corrupt V ROM on that cart - these carts are not 100% perfect in every instance. For example I've heard of 161 in 1's where one game just doesn't work at all (different checksum vs other 161 in 1's) and similarly with graphics glitches. For the most part they seem OK but the odd one slips past whatever QA checks they do on them.
Yes, tested last night and there are a couple of dodgy sounds in Puzzle Bobble. Not something I've played much on the 161 in 1 as I have an original PB cart.
On the 138 in 1 are cyber lip and metal slug 5 workin as they should?
It would have been good if someone managed to read the chip on the multicarts and burn in new functional roms.
We need to find a programmer that will read and program the fujitsu chips, one that doesn't cost $2000... that's the problem!
If we could find a data sheet for the chips we could create our own programmer.
hi, i think the one i have is a new version of 161 in 1, some games don´t work properly, but not all time, sometimes crashes and sometimes works ok, i´m not sure if that version has sound problems,
but you can see missing capacitors in the 2 boards. I don´t know if this 2 pcb´s needs to be fixed because are different than the others fixed by GadgetUK.
Can you take a look?
http://subefotos.com/ver/?a4ead4da24c5022cc882be27d81b3fedo.jpg
http://subefotos.com/ver/?2f785bd6b23a5fff372b22cb620a24ado.jpg#codigos
http://subefotos.com/ver/?873d2bd89f6f40bd454cb16517ad5f24o.jpg#codigos
http://subefotos.com/ver/?629082f2e0526d674a8167c433f31fa0o.jpg#codigos
http://subefotos.com/ver/?f1267caf59367fade0f78ad207829f20o.jpg#codigos
http://subefotos.com/ver/?8678e0d86e4477d8bc08f3b84ce1879eo.jpg#codigos
http://subefotos.com/ver/?bc7df906156ca71f1dc43ef2a9822632o.jpg#codigos
thank´s