- PV PVi4B amp, 2009 - 1 Update
- PbF + gold-plating + tinpest? - 1 Update
| N_Cook <diverse@tcp.co.uk>: Sep 26 03:10PM +0100 Failed output but fan continued. Any new ideas for that archetypal PbF symptom , of failure with owner and everything fine with repairer.? Initially litterally feather-touch twizzling ellicited nothing, plastic rod twizzling nothing. So now will have temporally "cured" any bad PbF joint. So next will be out with the big-guns, hot air and nylon bolt in engraving tool while listening to output on attenuatored headphones. Hopefully in speaker line as thermal sw is not in speaker line and owner reported not hearing hiss on the speaker when it failed, also checked not a speaker/lead problem. H&S issue, certainly QC issue, scrap of plastic? under the chassis ground solder tag complete with another star washer vaguely stuck to this plastic/paint film , awaiting a minor jolt to loosen , to fall into the amp. "Made in China" on the cab. |
| N_Cook <diverse@tcp.co.uk>: Sep 26 07:39AM +0100 On 22/09/2016 13:12, N_Cook wrote: > One pin easily pulled out of its eyelet that remained well soldered into > the pcb hole. White deposit entirely overlaying the gold-plating of the > 1/4 inch socket pcb pin. It was only white on initial extraction, grey now. With Brexit I suppose the UK will not go back to pre-RoHS SnPb. Europe -UK, would still be the largest consumer block globally and manufacturers like the fact purchasers have to replace kit earlier than they used to |
| You received this digest because you're subscribed to updates for this group. You can change your settings on the group membership page. To unsubscribe from this group and stop receiving emails from it send an email to sci.electronics.repair+unsubscribe@googlegroups.com. |
No Response to "Digest for sci.electronics.repair@googlegroups.com - 2 updates in 2 topics"
Post a Comment