Sometimes it just blows out the large diode. (only if you are lucky) Then other times, it fry's the power supply trans. Then others, it burns a large hole in the board. Have seen this on the early style 225, 425,4100,280,ect... Just won't know till you get a meter inside the amp...
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Check the diodes (silver bodied and black bodied) in the power supply section of the amp. If any diode appears to be shorted in the board, pull it from the board to check it.
Try to read the numbers off it before removing it. If it's defective, it may break when you remove it.
Try to read the numbers off it before removing it. If it's defective, it may break when you remove it.
"sorry if this is off topic but what are the differences between this amp and the 280gx amps? I have a couple of 280gx amps and the internals look exactly the same as this 225HCCA as far as I can tell."
The difference would be primarily the rail voltage. The transformer would have a higher turns ratio as well. The 225 HCCA digital reference series and the 275 SX have the same boards too. A couple folks on here have converted from an HCCA to SX and vise versa.
The difference would be primarily the rail voltage. The transformer would have a higher turns ratio as well. The 225 HCCA digital reference series and the 275 SX have the same boards too. A couple folks on here have converted from an HCCA to SX and vise versa.
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