Hum Vibrato / Trem Deluxe reverb
Hi,
Is some one familiar with the hum for the Vibrato / Trem on F.ender Reverb PCB 4.0.
I have a hum when i switch the Trem on. Reverb is clean and quiet, amp is hum free and quiet.
It s a loud hum when i switch, with a 2 button switch the Vib on.
If this sounds familiar to you, please let me know. Suggestions, Tips let me know. Thnx in advance. Henri
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An update. The 60 cycle hum is gone. I changed some grounding s. Also the PT was responsible for hum. One bold from the 4 off the PT was a bit loose. Then the ground shutting motorboating hum in the Trem - circuit. Alle measures and routings were good. After resoldering some main point s in the Trem-circuit , tadaa. Solved. I think or the .001 cap had a cold solder , or 1 leg from the LDR , which goes to ground had a cold - solder . So such a nice beautiful amp for some good blues rock southern rock