Dirty Harry
Williams, 1995Hello
I just picked up a DH and set it up. It was playing fine and the the lights started to act very strange until they stopped working all together. The flashers still work.
When I put it test all lights mode I get a lot of clicking from relay 1 and some very dim lights.
When I reboot I get lights for a moment and then sole flicker here and there.
Any advice?
Thanks
M
Reseat all your connectors and ribbon cables on all boards in the backbox and connectors in the bottom of the cabinet. Something may have come loose during transport or set-up.
If you are still having issues pull and check your fuses with a DMM.
all the LED's on the CPU and MPU are correct.
i did reseat all the cables.
no fuses where bad but i replaced the ones that had corrosion.
i swapped MPU's and prob remained the same.
i get faint GI lights on boot up.
at the same time the opto transmitter in the canon (switch 44) is not getting proper voltage.
i don't know if these are related problems.
I JUST REMEMBERED, occasionally the first few solenoids in test mode will not function after playing the game for awhile.
Measure power at each test point. Report back.
http://www.pinwiki.com/wiki/index.php?title=Williams_WPC#Power-On_LEDs_and_Sound_Tones_.28Bongs.29
Scroll down to WPC-089 driver board.
DMM on DC voltage.
Black lead under the head ground braid.
Red on each test point in turn.
--
Chris Hibler - CARGPB #31
http://www.Team-EM.com
http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info
Quoted from aveamike:When I put it test all lights mode I get a lot of clicking from relay 1 and some very dim lights
The relay and GI have U1 on the PowerDriverBoard in common. Possible Triac signal problem:
Starting at CPU-board U9 ASIC pin 66
Going to J211 pin 13
Via flatcable to PowerDriverBoard J113 pin 13
Going to U1 pin 11
Measure continuity or just carefully push U9 into it socket. ( You allready reseated cables )
J211 is connecting the CPU-board with the PD-Board with the grey 34pins ribboncable, cant' miss it.
But did you push U9 in it's socket ?
piece of cake 
Well, luckily aveamike noticed the clicking of the relay, if it wasn't mentioned, I wouldn't have thought about the TRIAC-signal.
Wanna join the discussion? Please sign in to reply to this topic.
Great to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
This page was printed from https://pinside.com/pinball/forum/topic/no-gi-or-inserts-working-on-dirty-harry and we tried optimising it for printing. Some page elements may have been deliberately hidden.
Scan the QR code on the left to jump to the URL this document was printed from.
Hudson, NY