Arcade Collecting > Restorations & repair
CHICKEN RESTORE LIKE A ROBOT (Berzerk) *IT LIVES*
ChadTower:
Duh! It won't work because that's a Track and Field PCB!
froggerman:
--- Quote from: ChadTower on February 24, 2009, 04:14:27 pm ---
Thanks for the advice... I found a couple web pages on this and you're right, it's likely the switch. I'll check that soon. In the meantime I found someone selling a temp controlled WES that has barely any use on it for a very low price. So that should be here in a couple of days. Worst case scenario here is that I end up with a working WTCPS and a new WES. What a crime that would be! :cheers:
I have never actually heard the old one click. I definitely understand the concept of the Curie Point style iron now but it's odd that this one has been so silent.
--- End quote ---
That sounds like a great deal. I have both a WTCPN and a WTCPS and the WTCPN is very easy to hear, the WTCPS is very quiet.
ChadTower:
So far, the new station is great, but the tip it came with needs replacing. I've cleaned it 20 times and it's just not staying tinned. The end of the tip doesn't melt solder for a good 8-10 seconds even at 725. I'll have to order a couple different types while I'm doing it.
Started tracing the reset circuit. Replaced the first cap, checked a few of the resistors. Other than being really dirty they all checked out and were cleaned. I'm having trouble getting the transistors out because of all the oxidation so I may have to make up a list and just start swapping them with new ones.
ChadTower:
Saturday made up a list of all the diodes and transistors in the reset circuit. Went over to You Do It and picked up 30 2N3904s and a massive diode variety pack that had 50 of the zener type I need. Seems as though unit price is like $1.80 for a single or $5 for 30... sorta frustrating for parts that don't have a bulk pack. Also picked up a variety of tips for the WES50.
Tonight cut out Q1 and Q2. Clipped Q2 too short to test but Q1 tested strange. Put in new ones that tested good, plugged the board back in because of Q1 bad test, and BAM three beeps! That's exactly what I should expect from a ZPU alone. Plugged everything else back in and four beeps. So I'll look that up tomorrow and see where to look from there.
ChadTower:
Oops! RAM board was still unplugged... which is the fourth self test. Plugged that sucker back and it's in attract mode now.
:cheers: :cheers:
I still have to adjust the monitor back from MAME land and do some burn testing but for now Berzerk is back!
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