my reciever has a problem with the mian front channels (l+r). I just hear crackling and static. The other channels are all ok. This started as an intermitant problem but now it seems permanent. Is there a relay(s) that connect these channels whos contacts have gotten worn out?
please advise or provide schematic / part no. If possible.
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I presume the machine has its own telephone line. Lift the handset and make a telephone call. Can they hear you ok? Can you hear them OK? If both ok then have them ring the fax and you answer it with the handset. Can they hear you ok? Can you hear them ok? or can you hear crackle on the line or any other strange high frequency noises? If you hear these noises then your telephone company will need to clean the line. Thats usually why this problem arises. the SF5100 was Samsungs best fax in my opionion. It did not suffer from any problems except wear and tear like all machines.
if front left is working it is possible u have a dry solder on ur right channel line. try resoldering or if u want to know exactly where dry solder is, shake gently every right channel components and connections. if resoldering does not work it is possible u have a faulty ouput amp for ur right channel. if ur not sure about this i suggest u get it checked by a qualified tech.
there is no chance that you can fix this problem by replacing speaker wires. Resoldering the output stages as well as area around the microprocesor could be the efficient solution.
If you need more info please advice.