Main Restorations Software Audio/Jukebox/MP3 Everything Else Buy/Sell/Trade
Project Announcements Monitor/Video GroovyMAME Merit/JVL Touchscreen Meet Up Retail Vendors
Driving & Racing Woodworking Software Support Forums Consoles Project Arcade Reviews
Automated Projects Artwork Frontend Support Forums Pinball Forum Discussion Old Boards
Raspberry Pi & Dev Board controls.dat Linux Miscellaneous Arcade Wiki Discussion Old Archives
Lightguns Arcade1Up Try the site in https mode Site News

Unread posts | New Replies | Recent posts | Rules | Chatroom | Wiki | File Repository | RSS | Submit news

  

Author Topic: Neotec 2515C vertical collapse on Hydro Thunder  (Read 2289 times)

0 Members and 1 Guest are viewing this topic.

Shaybe

  • Trade Count: (0)
  • Full Member
  • ***
  • Offline Offline
  • Posts: 20
  • Last login:March 07, 2019, 10:49:39 pm
  • I want to build my own arcade controls!
Neotec 2515C vertical collapse on Hydro Thunder
« on: June 01, 2018, 09:19:09 am »
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?