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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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#41
Posted to sci.electronics.repair
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Pad-lifting
En el artículo ,
John-Del escribió: Fortunately I had a working board and I used a DMM on the diode scale (for the audible) and attached one lead to the cap in question and I waltzed the other lead around the board on every point until I found a zero ohm connection that did not exist on the damaged board. Running an external jumper fixed it. Ingenious. I'll remember that. Thanks. -- (\_/) (='.'=) Bunny says: Windows 10? Nein danke! (")_(") |
#42
Posted to sci.electronics.repair
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Pad-lifting
John-Del wrote:
I had a Samsung multi layer board that was working but quit after I replaced a typical leaded electrolytic that was vented a bit. Top and bottom connections fine but the middle layer was not. Several reheats did not fix it. Fortunately I had a working board and I used a DMM on the diode scale (for the audible) and attached one lead to the cap in question and I waltzed the other lead around the board on every point until I found a zero ohm connection that did not exist on the damaged board. Running an external jumper fixed it. Well, you got lucky. You'd want to find the closest point that same net came to another through-hole. If that net didn't come out to another hole nearby, the long wire would somewhat defeat the purpose of the cap. If in a high frequency circuit like a switching regulator, it might not work. Jon |
#43
Posted to sci.electronics.repair
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Pad-lifting
Ralph Mowery wrote:
"MJC" wrote in message ... In article , elson@pico- systems.com says... The problem is not the cost of ONE connector, but the distributors make you buy 160 pieces minimum order! That does get expensive. As a private individual repairing my own kit I have met that problem too. If you can find a sympathetic salesperson you could try asking for a "sample"... Some of that has aslways been a sore spot with me. The companies should be required to sell any parts to an individual to do their own repair. I went with a man to help him pick up some boat motor parts. A man off the street wanted to buy some small part of about $ 20. They would not sell it to him. So we bought the part and then sold it to him. If not for us, he would have had a hard time getting that part. I have called some companies and received small parts with no problem. Needed a special transistor for a $ 1500 radio. Called Icom and ordered two of them and the postage and parts was about $ 5. No rip off at all from them. Wow, fair pricing and avialable parts? Glad I just got an Icom radio. Just tore it apart too- the construction is excellent- reminds me of late 1990s Motorola radios in the attention to detail and ease of service. |
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