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Samson 120a fault

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lost eden View Drop Down
Young Croc
Young Croc


Joined: 04 April 2011
Location: Dundee
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    Posted: 19 April 2014 at 3:13pm
Got a poorly Samson Servo 120a. It still works & sounds fine, but the signal meters show a -12dB signal even when there is no signal & the big resistors R55 & R56 on the PCB to the right of the transformer start baking within seconds of turning on. I imagine if I tried running it for more than 30 seconds or so they would die.

Any ideas what it could be?








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lost eden View Drop Down
Young Croc
Young Croc


Joined: 04 April 2011
Location: Dundee
Status: Offline
Points: 939
Post Options Post Options   Thanks (0) Thanks(0)   Quote lost eden Quote  Post ReplyReply Direct Link To This Post Posted: 19 April 2014 at 11:14pm
Bottom of the PCB in question, with the hot resistors circled. As far as I can tell this PCB hosts both the power supply & the right channel components, and the resistors are just before the 3 wires that carry power to the left channel PCB.






Edited by lost eden - 19 April 2014 at 11:30pm
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