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RG50TC combo very low output..
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<blockquote data-quote="Metallifornia" data-source="post: 76078" data-attributes="member: 2614"><p>Start by plugging into both of the inputs to see if there is signal passing both inputs. The difference between high and low inputs is 68Kohm (low) or 32Kohm (high) input impedance. I have had amps across my bench in the past where guys have burned up the input resistors by trying to plug in other amps or really hot signals from other effects. If they read ok then go to relay "RL1" it switches between the overdrive and clean channels by "shorting" the signal of the "off" channel thru R1 (10Ohm) to ground. Be sure that you have continuity (and signal passing thru) on the the appropriate pins when you switch channels. Try the Boost switch. There is a FET labeled Q1 with a 1Mohm resistor in parrallel in there when activated it creates a voltage divider thru R207. Make sure the FET is functioning.</p><p></p><p>My bet is the input resistors or the relay. Just because I have to ask, where is the master set during your tests?</p><p></p><p>-Brian</p><p></p><p>p.s. Here is a list of Randall's that I own. Big fan!</p><p>Randal RT30C, RH50T (6l6GC MOD), RG50TC, RGT100 and RG100SC</p></blockquote><p></p>
[QUOTE="Metallifornia, post: 76078, member: 2614"] Start by plugging into both of the inputs to see if there is signal passing both inputs. The difference between high and low inputs is 68Kohm (low) or 32Kohm (high) input impedance. I have had amps across my bench in the past where guys have burned up the input resistors by trying to plug in other amps or really hot signals from other effects. If they read ok then go to relay "RL1" it switches between the overdrive and clean channels by "shorting" the signal of the "off" channel thru R1 (10Ohm) to ground. Be sure that you have continuity (and signal passing thru) on the the appropriate pins when you switch channels. Try the Boost switch. There is a FET labeled Q1 with a 1Mohm resistor in parrallel in there when activated it creates a voltage divider thru R207. Make sure the FET is functioning. My bet is the input resistors or the relay. Just because I have to ask, where is the master set during your tests? -Brian p.s. Here is a list of Randall's that I own. Big fan! Randal RT30C, RH50T (6l6GC MOD), RG50TC, RGT100 and RG100SC [/QUOTE]
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RG50TC combo very low output..
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