XtraSmiley
Legendary
So I bought this PCB and I trust that the seller sent it working, as he sent me a youtube of it, however it's dead now, so either he's really being dishonest (not likely b/c of the video and his really good eBay feedback), or something happened during shipping, or maybe the caps are just old and it was time?
So first, I plugged into HAS v4 with proper 5v power to a CRT TV. Game worked, but image was very faded. It looked like the contrast was up too high. I adjusted the HAS color knob, to no avail, so I turned it off to test again later.
Next, plugged into my Dynamo JAMMA cab which runs a few of my shooters right now. Image came up for a second, then dead, no screen, no music.
Finally, I used the HAS and an OSSC to my LCD TV. Nothing. I push the voltage up to 5.1v, and it comes up briefly before freezing and when I powered down then back up again, it's giving "no sync" on the OSSC.
I've then tried on two other JAMMA cabs, with nothing.
So, the seller, wants me to up the voltage to 5.2 and 5.3. This seems very hight to me, as most games work fine at 4.95 (where I usually keep my HAS). I don't think increasing voltage is a good idea. If I do go down that route, what is too high?
Second, it has two photometers on the PCB. Usually I don't mess with these unless I know they are volume, but I don't see a clear marking on the PCB. Could these be used to adjust anything?
Could it just be a bad series of caps? The JAMMA edge connecter isn't the best looking, but I cleaned it pretty good and it seems to be ok.
Thanks guys. The seller is in another country and I'd like to avoid shipping back.
So first, I plugged into HAS v4 with proper 5v power to a CRT TV. Game worked, but image was very faded. It looked like the contrast was up too high. I adjusted the HAS color knob, to no avail, so I turned it off to test again later.
Next, plugged into my Dynamo JAMMA cab which runs a few of my shooters right now. Image came up for a second, then dead, no screen, no music.
Finally, I used the HAS and an OSSC to my LCD TV. Nothing. I push the voltage up to 5.1v, and it comes up briefly before freezing and when I powered down then back up again, it's giving "no sync" on the OSSC.
I've then tried on two other JAMMA cabs, with nothing.
So, the seller, wants me to up the voltage to 5.2 and 5.3. This seems very hight to me, as most games work fine at 4.95 (where I usually keep my HAS). I don't think increasing voltage is a good idea. If I do go down that route, what is too high?
Second, it has two photometers on the PCB. Usually I don't mess with these unless I know they are volume, but I don't see a clear marking on the PCB. Could these be used to adjust anything?
Could it just be a bad series of caps? The JAMMA edge connecter isn't the best looking, but I cleaned it pretty good and it seems to be ok.
Thanks guys. The seller is in another country and I'd like to avoid shipping back.