Samson 120a fault

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   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?

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
lost eden Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 04 April 2011 Location: Dundee Status: Offline Points: 942	Post Options Post Reply Quote lost eden Report Post Thanks(0) Quote Reply Topic: Samson 120a fault 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?

lost eden Members Profile Send Private Message Find Members Posts Add to Buddy List Young Croc Joined: 04 April 2011 Location: Dundee Status: Offline Points: 942	Post Options Post Reply Quote lost eden Report Post Thanks(0) Quote Reply 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