Had some time tonight to complete another one of these. Repair and full recap. R39 had a meltdown and dried up a few caps and killed the PWM controller power supply. I gooped it pretty good with silicone to dampen the stress on the solder joints so I can let the hot parts breathe a little.
Hi, @ngen33rI have the R-112SW subwoofer which powers off after a few minutes whether in on or auto position. While on it works perfectly which is on On position and in Auto position it does switch on with incoming signal to LFE. I was quoted for replacement of the entire amplifier board which is a bit too expensive. I am waiting for the dealer to return my subwoofer so i can replace the 5 capacitors and resistor. In the event that the resistor value is not readable, what is the value of the existing resistor on the board which you replace with the 5W resistor? On one post I saw you mentioned 820ohm 3W and another guy mentioned his had a 680ohm. Which one is on the R-112SW?
R-110SW / R-112SW / R-115SW Repair Blog
in Technical/Restorations
Posted
Hi, @ngen33rI have the R-112SW subwoofer which powers off after a few minutes whether in on or auto position. While on it works perfectly which is on On position and in Auto position it does switch on with incoming signal to LFE. I was quoted for replacement of the entire amplifier board which is a bit too expensive. I am waiting for the dealer to return my subwoofer so i can replace the 5 capacitors and resistor. In the event that the resistor value is not readable, what is the value of the existing resistor on the board which you replace with the 5W resistor? On one post I saw you mentioned 820ohm 3W and another guy mentioned his had a 680ohm. Which one is on the R-112SW?