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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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LED flicker
Hi, I have a 1989 IGT S plus Slot machine on which the LED displays
flicker, not so bad that they are hard to read but enough to be annoying. Also stepper motors hum loudly sometimes and sometimes quiver a little between spins. what components would I need to replace? Caps, transformer, etc? Any slot techs out there? Any help would be appreciated. Thanks, Mike |
#2
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LED flicker
Mike Goertz wrote:
Hi, I have a 1989 IGT S plus Slot machine on which the LED displays flicker, not so bad that they are hard to read but enough to be annoying. Also stepper motors hum loudly sometimes and sometimes quiver a little between spins. what components would I need to replace? Caps, transformer, etc? Any slot techs out there? Any help would be appreciated. Thanks, Mike Are you sure the flicker is not just from the display multiplexing? It would be worthwhile to check the filter capacitors in the power supply. |
#3
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LED flicker
On Mon, 05 Feb 2007 19:09:18 -0600, Mike Goertz wrote:
Hi, I have a 1989 IGT S plus Slot machine on which the LED displays flicker, not so bad that they are hard to read but enough to be annoying. Also stepper motors hum loudly sometimes and sometimes quiver a little between spins. what components would I need to replace? Caps, transformer, etc? Any slot techs out there? Any help would be appreciated. Thanks, Mike I'd suggest you look at the power supply - sounds like excessive ripple from failed caps, or a failed diode bridge. |
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