Time Killers partially working

My suspicions were right. After some rework the pcb now boots and plays, but with some graphical issues. I need to go over the pcb with a magnifying glass now and should hopefully find whatever faults remain

Fixing Time Killers

Was working when last tested, now it doest. If I know my IT pcbs then this will want some rework around the smt customs

WG medium res chassis under repair

Northern Pinball League Results

So my first league entry and I am very pleased to have come 12th out of 24, earning myself 4 league points.

I let myself down on some of the games that I know really well (Medieval Madness 18th and Twilight Zone 9th) , but I did really well with a 2nd place on Scared Stiff, just being beaten to 1st by David Dutton. I was annoyed to have just missed out on achieving Scared Stiff, which would have resulted in my score being significantly higher, but can't complain about 2nd place.

I managed averagish scores of the remainder of the machines that I was not familiar with, using the "bash every target in sight" technique for unfamiliar table play lol

I will have to get some more practice in for the next meet and see if I can advance my rank at all.

Overall it was a really good fun day. Thankyou very much to the host for letting us into his home to play his excellent collection of machines, and thanks to everyone I met for making me feel welcome!

Northern Pinball League - Halifax

Hantarex MTC9000 repair start

Working, but has wavy lines and some distortion, the top and bottom of the screen missing even though it doesnt fill the tube.

Hantarex US250 fixed

Sound is working again on chequered flag now

Hantarex Us250 fixed?

Replaced all caps, reflowed all solder joints, replaced bad diode in 12v supply and replaced fuses with correct values. Time to go check this works in the chequered flag cab

Hantarex US250 repair start

High ripple on the +5v, failed +12v and one of the fuses has been wrapped in wire, which is never a good sign

Hantarex MTC900E repair

All new capacitors including filter cap (screen had 20 different types of shake, wobble and distortion), New LOPT, reflowed a gazillion dry joints, replaced TR29. (Green was locked on)

Sunday gaming

Nemesis almost

Fixed the stuck green bits and fixed the sound. Its now fully playable, but the background has a blue tint to it

Nemesis in progress

Managed to trace out a bad RAM to get the game booting. Now it is a bit too green and has no sound

Nemesis PCB taking a shower

It was too dirty to work on

Fixing Williams Joust

Pacman oven gloves

Atari APB back online

The monitor repairs were a success (see earlier blog posts)

JAMMA Fresh

Jammatise the JAMMA cab

Re-wire time

This is my trusty Jamma cab of 13 years being gutted for a re-wire. The edge connector has survived over 2500-3000 pcb insertations, but now it is falling apart ( no suprise there ) The mains lead also needs replacing as does the SMPSU which is now only outputting 4.4v max

Monaco GP monitor fixed

Just leaving Monaco GP for a burn in test after fixing the monitor. Once I am happy with that the boards need looking at as the game seems to be running crazy fast

Dead HOT on K7000

As I predicted, the HOT is a dead short...... The fuse never lies

Yet another cracked K7000 LOPT

I am starting to agree with the KLOV guys... K7000 LOPTs are terrible. I am going to have to source some new ones now grrr

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