Super manual it contains all the things you need to service your Marantz 2100.
Text excerpt from page 24 (click to view)
WM-FX561/FX563
REVISION HISTORY
Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. 1.0 1.1 Date 1998.05 2002.01 New Correction of Part No. for IC 4
(SPM-01041)