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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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Arcing Flyback Transformer - HELP
Hi,
I have a 1994 Atari Primal Rage Cabinet. The flyback is arcing in all directions - mostly across a 3cm gap to the earched chassis but is also arcing to a nearby component on the pcb. I presume I need a new flyback? Any other components likely to be damaged? Model of flyback is 2027017-001 Any advice appreciated (guess I may need to buy the new part and then hire in a professional to do the soldering etc?) I can send a 65k .jpg picture of the arcing to anyone interested! Paul |
#3
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Arcing Flyback Transformer - HELP
I've run into that problem with the some series of video game
monitors. What I do is chop away at the offending metal frame so that it is at least 2 inches away from the burn-though spot on the flyback. If the burn-through is near the Focus/Screen pots on the flyback then you can use epoxy to fill the hole, after scraping it carefully to remove any burnt material (conductive!). Doesn't always work, but I have saved a couple of monitors this way. John :-#)# On 26 Oct 2003 07:04:07 -0800, (Paul Richards) wrote: Hi, I have a 1994 Atari Primal Rage Cabinet. The flyback is arcing in all directions - mostly across a 3cm gap to the earched chassis but is also arcing to a nearby component on the pcb. I presume I need a new flyback? Any other components likely to be damaged? Model of flyback is 2027017-001 Any advice appreciated (guess I may need to buy the new part and then hire in a professional to do the soldering etc?) I can send a 65k .jpg picture of the arcing to anyone interested! Paul (Please post followups or tech enquires to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#4
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Arcing Flyback Transformer - HELP
Why not just replace the flyback? Seems like the "offending" component is
not the metal frame, which may be providing some shielding or a safer place to ground any of those "offensive" arcs. Leonard Caillouet "John Robertson" wrote in message ... I've run into that problem with the some series of video game monitors. What I do is chop away at the offending metal frame so that it is at least 2 inches away from the burn-though spot on the flyback. If the burn-through is near the Focus/Screen pots on the flyback then you can use epoxy to fill the hole, after scraping it carefully to remove any burnt material (conductive!). Doesn't always work, but I have saved a couple of monitors this way. John :-#)# On 26 Oct 2003 07:04:07 -0800, (Paul Richards) wrote: Hi, I have a 1994 Atari Primal Rage Cabinet. The flyback is arcing in all directions - mostly across a 3cm gap to the earched chassis but is also arcing to a nearby component on the pcb. I presume I need a new flyback? Any other components likely to be damaged? Model of flyback is 2027017-001 Any advice appreciated (guess I may need to buy the new part and then hire in a professional to do the soldering etc?) I can send a 65k .jpg picture of the arcing to anyone interested! Paul (Please post followups or tech enquires to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#5
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Arcing Flyback Transformer - HELP
Actually we used to do just that, and the flyback would AGAIN burn
through. Turns out the design of the flyback was poor - the insulation too thin and the metal that it would arc over to had a nice sharp edge close to the weak spot. Since we now cut away the metal we have had no further flyback failures. John :-#)# On Sun, 26 Oct 2003 22:24:32 -0500, "Leonard Caillouet" wrote: Why not just replace the flyback? Seems like the "offending" component is not the metal frame, which may be providing some shielding or a safer place to ground any of those "offensive" arcs. Leonard Caillouet "John Robertson" wrote in message .. . I've run into that problem with the some series of video game monitors. What I do is chop away at the offending metal frame so that it is at least 2 inches away from the burn-though spot on the flyback. If the burn-through is near the Focus/Screen pots on the flyback then you can use epoxy to fill the hole, after scraping it carefully to remove any burnt material (conductive!). Doesn't always work, but I have saved a couple of monitors this way. John :-#)# On 26 Oct 2003 07:04:07 -0800, (Paul Richards) wrote: Hi, I have a 1994 Atari Primal Rage Cabinet. The flyback is arcing in all directions - mostly across a 3cm gap to the earched chassis but is also arcing to a nearby component on the pcb. I presume I need a new flyback? Any other components likely to be damaged? Model of flyback is 2027017-001 Any advice appreciated (guess I may need to buy the new part and then hire in a professional to do the soldering etc?) I can send a 65k .jpg picture of the arcing to anyone interested! Paul (Please post followups or tech enquires to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." (Please post followups or tech enquires to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#6
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Arcing Flyback Transformer - HELP
"John Robertson" wrote in message ... Actually we used to do just that, and the flyback would AGAIN burn through. Turns out the design of the flyback was poor - the insulation too thin and the metal that it would arc over to had a nice sharp edge close to the weak spot. Since we now cut away the metal we have had no further flyback failures. John :-#)# When I run into something like that I usually put a blob of clear silicone caulk over the offending metal and the burn spot on the flyback as well if it's still salvageable, so far so good. |
#7
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Arcing Flyback Transformer - HELP
that is a wells gardiner part and they are common to see arcing.iirc it is
replaced by hr7717. mcm has it. "Paul Richards" wrote in message om... Hi, I have a 1994 Atari Primal Rage Cabinet. The flyback is arcing in all directions - mostly across a 3cm gap to the earched chassis but is also arcing to a nearby component on the pcb. I presume I need a new flyback? Any other components likely to be damaged? Model of flyback is 2027017-001 Any advice appreciated (guess I may need to buy the new part and then hire in a professional to do the soldering etc?) I can send a 65k .jpg picture of the arcing to anyone interested! Paul |
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