This game was a final stroke to my pinball madness in 1979. I still remember when we went to play
Flash on the other side of town, in a little bar where the local gang was not very pleased to see
strangers. I survived alive, and now finally I can play Flash at home!
The machine required some fixing. On the driver board, one PIA chip and one transistor needed to be
replaced, the sound board required a new crystal and ROM socket (the old was of the notorious SCANBE brand).
To the playfield I put new rubbers and lamps, and replaced one broken droptarget (thanks Mikko for the spare part).
One rollover star is still missing and the lower right flipper coil is partially shorted, but the game is now
good enough for some test games. And a great game it is! The backglass is quite fine, but there is a little flaking on
red colour. It needs coating as soon as possible. The playfield is nice, with a Mylar since new. The Mylar cleaned
nicely with Novus 2 and 1. All in all, this will be a great game!
A new rollover star is in place. Now only the flippers need some new parts, and after that the game
is in fine condition. The backglass is nice after lacquer coating and some drops of red paint on the backside.
Slight hum from the sound board disappeared when I replaced two capacitors on sound board. No wonder that
they had dried out after 24 years.
Here are backglass images with game on and off.
The third image shows where the glass is patched. With power off
it looks really nice, and with power on the fixups on red paint are visible
but anyway it looks better than with holes in the paint.
For touching up the backglass paint I have used paint pens available
in hobby shops, of type "Hobby Line Lackmalstift". Suitable for many games are
red and yellow colors coded "47212 Rot" and "47215 Gelb".
The lower right flipper coil was slightly damaged. As I replaced it, I also replaced all the coil sleeves.
The old aluminum sleeves were quite worn, the new Teflon ones are much more better - and that shows!
At the same time I filed the flipper EOS and button contacts, now they feel very good to play. It is
a small wonder that the flipper plungers and links are in good shape, no signs of wear at all!
One replaced drop target was missing a sticker. Also, when comparing my Flash with some photos from a new machine,
I noticed that all the target stickers have been badly faded. The original blue color has turned
into greyish green. So, let's start the scanner and imaging software, and here's the result, before
I printed the sticker images on adhesive paper and sprayed a few layers of clear lacquer on top.
That should last for a while, and when they wear out, it is easy to again replace with new stickers
since I now have plenty of them.
Flash has been working fine for a long time. So it was already time for something to fail. The bonus
multiplier and Shoot Again -lamps were out. Very typical problem for early Williams solid state
games is that the 27 ohm resistors on driver boards lamp circuit overheat and break. Their
wattage is a little underrated, at least for 25 years usage. :) The actual reason this time was an internal B-E short of one
driver transistor, stressing the resistor even more. After replacing the transistor and all 8
resistors, the game works as before.
I replaced the +5V filter cap on power supply board, because checking the ripple voltage
showed quite high value, almost 2V, meaning the cap was at the end of its life. It was still original.
25 years is respectable life for an electrolytic.
Flash was one of the last games to use the old EM style flipper mechanism with small coil. With Firepower,
the new mechanism and larger coil, like those used in WPC games, was presented. At first they were 28 volt coils,
like all other coils in early SS games, later 50 V. Especially when worn, then old
mechanism does not quite do the job in Flash. From an old junk playfield I removed two of the newer style
mechanisms, complete with today a bit rare large 28 V coils, and installed them to my Flash. They are also already a little
worn, but still much better than before. Now just hope the drop targets do not start to break.
Original flippers with small coils
New style flippers installed
The sound board had started to hum. I replaced the rest of electrolytics on board, which
helped. Now the game is silent, only the transformer hums a little.
While playing I noticed some of the drop targets do not score. In the older
Williams games the target switch is made from circuit board, and need cleaning
every now and then. Cleaning with contact spray and lubricating with very small
amount of silicone grease restored operation of all targets.