On 7/13/20 12:00 PM, Mike Stein via cctalk wrote: > Shouldn't be too difficult to troubleshoot; have you got the manual? > > Start by checking the 24V > 12V regulator... Second that! I've had to replace more than one regulator on 848s; also the 100 ohm resistor (R1) and electrolytic capacitor(C6) on the input side of the regulator. --Chuck