Another bad K7000 LOPT

Damn, after cleaning my doner LOPT, I can see there is a crack through the focus section

19K7915 monitor repair in progress

So after finding the melted LOPT on the APB monitor, I have taken a donor LOPT off another K7000 chassis ready to fit on this chassis.

As usual, when I have any monitor on the bench that still has its original capacitors in place, I replace every single one including the B+ filter and the non-polar video caps.

After that is done, I need to check the board over for faults. The fuse has vaporised, which usually means there is a dead short somewhere, as the LOPT melted, I will asume it is probably the HOT that has shorted with it, but it could also be the main regulator

Atari APB LOPT failure

Well I found out why there was smoke coming out of the coin door of APB. Looks quite clear now lol.

Despite people on KLOV complaining about WG K7000 LOPTs failing regularly, this is my first K7000 LOPT failure EVER, and I must have about 20 K7000s

Road Runner fixed

Just finished fixing the monitor (see GD Tronics thread on Jamma+)

Huge stack of components to sort out

Lots of machines to fix and lots of components to fix them with

Konami to JAMMA

Just made myself a nice new Konami to JAMMA loom

Games night at JMP's

Chase HQ Lives

New power supply in and cleaned up the monitor to stop the arcing. The road has lines in it, so need to fix that at some point, but at least it is playable. I still need to get a replacement steering mech as this one does not self center anymore

Road Runner monitor repair in progress

I am told these GD monitor chassis suffer from a few bad caps ,so I have orded Panasonic long life replacements for all the caps on the chassis. When they arrive I will give the chassis the usual check over and reflow. It would be nice if the fault was just down to bad caps, but I will check over the components in the SMPSU section anyway. ( The fault is struggling to start up, the PSU can take 100+ cycles before it will properly start and stabalise.

Winding Heat

Well I have got Winding Heat playable again. Sadly there is no sound and the monitor needs a fair bit of work, but at least it is on again