This is a compilation of errors in Marantz service manuals. These corrections will likely save you from smoking your receiver. Remember to use some good mini grabber leads when you're adjusting bias, I've read way too many horror stories of slipping probes.
Big thanks to Tom (catrafter) for contributing most of these.
2220B Idle current adjust:
SM says measure J712 - 718 for one channel, 713 to 719 for the other. WRONG! Do this instead: Measure bias at J714 to 716 and adjust R733 for 20mVDC on that channel. Then measure J715 to 717 and adjust R734 for 20mV on the other channel.
2220B Cap listing:
Service manual lists CE21 & CE22 as 33 uF/50v. Should be 3.3 uf/50v.
CE23 & CE24 listed as standard 1.0 uF/50V. Use non polar caps here.
C709 and C710 should be 47uf 50V, not the listed 500V.
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