Quoted from barakandl:
Lower end DMMs have trouble reading a circuit with no load. Hard to say.... In my experience a bally game everything reads high unloaded except for the 230v for the display reads way low.
Any idea why the 230VDC reads low? I rebuild my Harlem Globe Trotter Rectifier board with new header pins, bridge rectifiers, and diodes. When powering on my bench, all voltages check good EXCEPT the 230VDC which reads between 150-170VDC. The AC in is good (120VAC) as is the 173VAC into the 230VDC rectifier circuit (4 diodes and a resistor). One thing I noticed is the resistor R3 on my recitifier board is an 80kohm whereas the schematic calls for a 100kohm. I left the 80 on there thinking that replacing it with a 100kohm would lower the voltage even further!