Arcade Collecting > Pinball
High Voltage not high enough
Neverending Project:
I thought I might have installed the wrong part at VR1, but I just double checked and the markings that I didn't recognize were because it is an equivalent 2EZ140. And it tests fine on the board.
So I'm still baffled here. I am tempted to go ahead and replace the voltage regulator board just to be sure, but my brain keeps asking me what could possibly be wrong with four simple diodes? But if I do get a replacement board from pin-logic, I can also pick up a replacement HV circuit for $35 - cheaper than a new SDU board.
Hrm, $68 plus shipping shipped for the peace of mind to know that the regulator board works perfectly is tempting. Why do I always over think things?
Edit: That $68 includes shipping... I just got pushed closer to the buy-now side.
Neverending Project:
I replaced the HV section of the SDU with the HI-Volt board from pin-logic.com. The replacement was as easy as removing the 20 or so parts from the board that make up the HV circuit and then soldering four wires into some existing holes. It was really straight forward.
So now the scores do display, but they are flickering quite a bit and some of the digits are out. At least I know there was something wrong with the HV section of my SDU board. Now that is fixed so I can move on to trouble-shooting the flicker and blank digits. I'll have to check, but I think the same digits are out on all displays. That should be a clue.
On a side note, the entire pin-logic experience was amazing. He answered my e-mails within minutes, and the very moment Paypal notified him of my payment the board was in the mail. I placed my initial order on Thursday night at 9:00PM Pacific and received the boards on Tuesday afternoon. Superb!
Neverending Project:
--- Quote from: pinballjim on January 26, 2009, 03:19:01 pm ---Sounds like you've got a set of nearly dead displays... you're never really going to know until you test them in another game.
--- End quote ---
I haven't looked into it at all, but does it need to be a Stern (or Bally) that I test them in? I could try them in a Game Plan Pinball Lizard, at some point, since that is at my Dads.
Neverending Project:
There was something wrong with the HV circuitry that needed fixing. The displays went from completely off with no orange glow in the corner to working, but flickering. The HV went from out of range to in-range. And if the same digit is out on every display, then that tells me there is something wrong with a connector pin or header.
The displays may also be dead, but the replacement parts were needed anyway.
GPE:
--- Quote from: Neverending Project on January 26, 2009, 02:51:48 pm ---I replaced the HV section of the SDU with the HI-Volt board from pin-logic.com. The replacement was as easy as removing the 20 or so parts from the board that make up the HV circuit and then soldering four wires into some existing holes. It was really straight forward.
So now the scores do display, but they are flickering quite a bit and some of the digits are out. At least I know there was something wrong with the HV section of my SDU board. Now that is fixed so I can move on to trouble-shooting the flicker and blank digits. I'll have to check, but I think the same digits are out on all displays. That should be a clue.
On a side note, the entire pin-logic experience was amazing. He answered my e-mails within minutes, and the very moment Paypal notified him of my payment the board was in the mail. I placed my initial order on Thursday night at 9:00PM Pacific and received the boards on Tuesday afternoon. Superb!
--- End quote ---
Response to an old thread... but -- I'm curious. Has ANYBODY else other than me ever looked at what parts are actually used on this replacement board?!?!?
The parts used on this board exceed the manufacturer's ABSOLUTE MAXIMUM ratings by more than 2x!!!
What would possess somebody to market such an item?
Sure, these will work for awhile but there is no way these will last in the long run.
:soapbox:
Ed
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version