Hope you all had a pleasant Christmas holiday
I've finished re-furbishing the PA unit following previous owners terrible mess.
Two questions please:
(i) The final amplifier bias is adjusted by turning VR8001. Page 30 (Technical Supplement) asks for setting the "High Current" line to the PA to 200mA. There are three lines feeding the board? ( a fourth is ground) - Two 13.8V and one 24V. Does anyone know which is the "high current" line please for this measurement?
(ii) PO meter calibration. This is adjusted by turning "VR 11 Main Chassis" (after setting "drive" to give 100Watt output on an external meter)? until 100W is read on Meter 1. Does anyone know where this pot. is situated please?
Thanks in advance for any help
Peter G0LQU
