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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
Posted to comp.misc,sci.electronics.repair
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Extreme Repair of a Burnt PCB
On 14/11/14 23:50, Rich wrote:
http://hackaday.com/2014/11/13/extre...-a-burnt-pcb/# [xsdb] had a real problem. His JBL L8400P 600 watt subwoofer went up in flames ? literally. Four of the large capacitors on the board had bulged and leaked. The electrolyte then caused a short in the mains AC section of the board, resulting in a flare up. Thankfully the flames were contained to the amplifier board. [xsdb's] house, possessions, and subwoofer enclosure were all safe. The amplifier board however, had seen better days. Most of us would have cut our losses and bought a new setup. Not [xsdb] he took on the most extreme PCB repair we've seen in a long time. ... (added sci.electronics.repair) I wouldn't quite call this extreme... -- Adrian C |
#2
Posted to comp.misc,sci.electronics.repair
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Extreme Repair of a Burnt PCB
On 11/15/2014, 6:04 AM, Adrian Caspersz wrote:
On 14/11/14 23:50, Rich wrote: http://hackaday.com/2014/11/13/extre...-a-burnt-pcb/# [xsdb] had a real problem. His JBL L8400P 600 watt subwoofer went up in flames ? literally. Four of the large capacitors on the board had bulged and leaked. The electrolyte then caused a short in the mains AC section of the board, resulting in a flare up. Thankfully the flames were contained to the amplifier board. [xsdb's] house, possessions, and subwoofer enclosure were all safe. The amplifier board however, had seen better days. Most of us would have cut our losses and bought a new setup. Not [xsdb] he took on the most extreme PCB repair we've seen in a long time. ... (added sci.electronics.repair) I wouldn't quite call this extreme... Maybe not extreme, but it was clever, very clever... I've rebuilt PCBs using epoxy to make flat surfaces and then used old PCB repair trace kit to make replacement traces. Making a small PCB from some good photos is certainly a good idea! Extreme might be if you had to do this on the ISS (International Space Station) for the life support logic PCB. John :-#)# -- (Please post followups or tech inquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
#3
Posted to comp.misc,sci.electronics.repair
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Extreme Repair of a Burnt PCB
On 15/11/2014 17:52, John Robertson wrote:
On 11/15/2014, 6:04 AM, Adrian Caspersz wrote: On 14/11/14 23:50, Rich wrote: http://hackaday.com/2014/11/13/extre...-a-burnt-pcb/# [xsdb] had a real problem. His JBL L8400P 600 watt subwoofer went up in flames ? literally. Four of the large capacitors on the board had bulged and leaked. The electrolyte then caused a short in the mains AC section of the board, resulting in a flare up. Thankfully the flames were contained to the amplifier board. [xsdb's] house, possessions, and subwoofer enclosure were all safe. The amplifier board however, had seen better days. Most of us would have cut our losses and bought a new setup. Not [xsdb] he took on the most extreme PCB repair we've seen in a long time. ... (added sci.electronics.repair) I wouldn't quite call this extreme... Maybe not extreme, but it was clever, very clever... I've rebuilt PCBs using epoxy to make flat surfaces and then used old PCB repair trace kit to make replacement traces. Making a small PCB from some good photos is certainly a good idea! Extreme might be if you had to do this on the ISS (International Space Station) for the life support logic PCB. John :-#)# Or even Apollo 13. Crew saved by making a life-support CO2 filter from plastic bag, a manual cover and gaffer tape, now that was extreme repair |
#4
Posted to comp.misc,sci.electronics.repair
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Extreme Repair of a Burnt PCB
On 11/15/2014, 10:16 AM, N_Cook wrote:
On 15/11/2014 17:52, John Robertson wrote: On 11/15/2014, 6:04 AM, Adrian Caspersz wrote: On 14/11/14 23:50, Rich wrote: http://hackaday.com/2014/11/13/extre...-a-burnt-pcb/# [xsdb] had a real problem. His JBL L8400P 600 watt subwoofer went up in flames ? literally. Four of the large capacitors on the board had bulged and leaked. The electrolyte then caused a short in the mains AC section of the board, resulting in a flare up. Thankfully the flames were contained to the amplifier board. [xsdb's] house, possessions, and subwoofer enclosure were all safe. The amplifier board however, had seen better days. Most of us would have cut our losses and bought a new setup. Not [xsdb] he took on the most extreme PCB repair we've seen in a long time. ... (added sci.electronics.repair) I wouldn't quite call this extreme... Maybe not extreme, but it was clever, very clever... I've rebuilt PCBs using epoxy to make flat surfaces and then used old PCB repair trace kit to make replacement traces. Making a small PCB from some good photos is certainly a good idea! Extreme might be if you had to do this on the ISS (International Space Station) for the life support logic PCB. John :-#)# Or even Apollo 13. Crew saved by making a life-support CO2 filter from plastic bag, a manual cover and gaffer tape, now that was extreme repair True, but we were talking about extreme PCB repair. Loved the movie, and remember the incident (I'm a wee bit north of 60 you might say). John :-#)# -- (Please post followups or tech inquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |
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