RM.404 Rear Panel (FUNCTIONS)
Section O: Channel 1 Inputs
O. Channel 1 Input Connections: This group of connections are ALL inputs
which are only routed to Channel 1 (select input using section G, (#23) from
top panel). Only one line (L1) and one phono (PH1) can be input here. The
"GND" connections are used only for phono inputs which require a Ground
cable and can be used for any phono input on any channel. NOTE: Line
inputs are used to connect to line level sources such as CD players, sam-
plers, tape players, etc. Phono inputs are used to connect to turntables. Mic
inputs connect directly to microphones. To prevent potential circuit damage,
never connect line level source to phono inputs.