![]() After a couple of seconds there was audible gentle click from speaker protection circuit, all good I thought. The seller offered return and full compensation based just on damage of speaker posts, but I won the auction for less then £70, cheap, thus trying to sort it out.Īnd yesterday evening I did cut the cord outside of amp, connected the wires using insulated connectors, the continuity was fine, and then plugged it in, voltage came 240V to the switch, so I switched it on, ready to unplug if some strange behaviour, but it was silent. Ordering items that are listed but out of stock can involve delays of up to 2 years, or forever.Ĭlick to expand.I have checked inside, tha amp looks clean and not tempered with. Lst I heard UK was not customs free with any other country. Be sure any website you order from has stock in YOUR country, you don't want to do customs peperwork and even if the distributor handles the customs, there can be delay at the port of entry of 10 weeks. Tip for buying from electronic distributors, if you get the order over $25 to $40, then the distributor will not charge you a handling surcharge. The dual jacks are 3/4" spacing, US inches unfortunately for Europeans. You can buy new binder terminals/bananajacks for the speaker connections at the same time as the other electronic supplies. Unless you live in London or Manchester, you are unlikely to find electronic supplies at any retail store. When starting on an amp repair project, buying a package (5) of fuses for the device that is not functioning at the same time as the solder, terminals, soldering iron, can save you a $12 freight charge when you do need them. Without power the fuses near the metal box lower right can be checked with the diode/continuity scale of a dvm. 1 v at high current through a ring or watch can burn your flesh to charcoal. One other safety tip, wear no metal on hands wrists or neck when measuring voltage inside an appliance. This limits the energy to faults that can cause parts to explode. Mine has a circuit breaker and a grounded case. We repair people usually power a defective amp through a "light bulb box" that interrupts the AC supply with a series 60 w or 100 w tungsten light bulb. Use an alligator clip lead on one DVM terminal and measure voltage with one hand. If the amp refuses to power up after the cord is replaced, do not ever measure two points with two hands. You can buy the klein stripper tool and safety glasses from a home improvement store, but the proper gauge power cord, the ring terminals, the solder, and the 120 w soldering iron (I like the pistols) come from an electronic supply. In UK newark is called farnell and there is also RS. I buy electronic supplies at Newark Digikey and Mouser. Replace cord grip in the back wall with slip joint pliers. The Klein stripper tool also has crimp features for terminals. ![]() You are unlikely to find solder & soldering iron at an electrical supply, such use is prohibited in house wiring by the electrical codes. If ground (green) connection to case requires a crimped on ring terminal, buy a package from Dorman at the auto supply or TE connectivity 3M or Panduit at the same electronic supply you get the power cord from. Be sure replacement power cord is same wire gauge as old one. I find stripping power cord is precise with a Klein stripper. Replacing use rosin core 60/40 or 65/35 solder. Use needle nose pliers to remove the power cord from the terminals while solder is hot. Use 120 watt iron, 16 to 14 ga wire requires that much heat to make solder melt. Wear safety glasses unsoldering, solder splashes. Then unsolder wires from metal box (RF filter?). The power cord hot & neutral appear to be soldered to that metal box? Unplug power cord from wall, remove strain relief fitting through wall with slip joint pliers. That appears to be a metal box thing on the lower right of the picture. Rather than splicing the power cord outside the case, it is generally safer to replace it all the way through the panel and over to the first termination.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |