| Arcade Collecting > Restorations & repair |
| Neotec 2515C vertical collapse on Hydro Thunder |
| (1/1) |
| Shaybe:
A while back I put a new flyback in Hydro Thunder but accidentally swapped the two wire because the colors were swapped from the original. After putting the wires back to how they were supposed to go I was greeted with a horizontal line running across the screen. I found some posts with these good measurements IC 301 (LA7836) 1:11.6 Vcc 2:4.6 3:5.8 4:0 ground 5:5.9 6:5.3 7:20.0 Vcc 8:2.2 9:1.4 10: 0 11:11.6 12:20.0 13:4.8 IC401 (LA7850) 10: 12v 20: 12v r117: 125v r118: 25v r119: 25v ZD101: 12v And then here is what I measured IC 301 1:11.7 2:158 mV (BAD) 3:5.87 4:0 5:10.76 (BAD? too high) 6:.46 (BAD) 7:23 8:20 mV (BAD) 9:2.6 10: 0 11:.42 (BAD) 12:22.8 13:4.9 IC401 10: 12v 20: 12v r117: 175 mV (BAD) r118: 102 mV (BAD) r119: 12.4 (BAD?) ZD101: 12v From a suggestion on another post I replaced IC301, but the vertical collapse remains. Does anyone have any suggestions of what else I could check? |
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