Question about JVC RX-ES1SL Receiver
WHEN I SWITCH ON THE AMP THE MAIN DISPLAY DOES NOT LIGHT UP BUT THE RED DOT ON THE OTHER DISPLAY DOES ,NOTHING HAPPENS AND AFTER A FEW MOMENTS THE SYSTEM SHUTS ITSELF OFF HOPE YOU CAN HELP THANKS
1: In most cases there are two FET`s gone you can use a normal IRF 530 but cut the heat sink from the FET do it with a pincer not with a grinding machine! (static electricity!). Before you switch on the set pay attention for the following parts!
2: The two coils that are mounted under the metal housing on the main board look of they have a other color if so they are burnt Check also the SMD parts under the main PCB.
3: The two SMD Elco`s that are mounted on the little PCB they have in most cases a high ESR. The value must be under 1 I thing that all the troubles you can have with this set are coming from this two elco`s (100uF 16 volt.)
4: look for a short cut on this little PCB pay attention to the two SMD gates. Measure the S/C over the +5 and +12 volt lines and check both PCB visual.
5: You must bring in a lot of heat to remove the both IRF`s use a good flux and do not fear the heat they can have it.
Because you must use a big Iron there is the danger to damage this aluminum layer check visual after you have solder the two FET`s all the connection with the smaller parts measure them with a Ohm meter. This was the fault in mine case there was a open connection to one of the gates of the FET`s
Posted on Jun 03, 2008
There are 4 small glass fuses. One of mine has burnt out.
By removing the main cover they are easy to locate. Let you know if it rectifies the problem.
Posted on Jul 07, 2008
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