LT-6041 Rev 3
FIGURE 1: QIF-2011 INTERFACE CONTROLS AND INDICATORS ( Note: On early boards ,
QM and VT terminals were identified as QP and VO and first hi-voltage input belonged to zone 3
instead of zone2)
Terminal identification table
Terminal
Function
SH (beside R1)
Audio signal shield connection
R1
External signal #1 audio return
H1
External signal #1 audio positive. Connect H1 and R1 to external
signal source with highest priority.
M1
External signal #1 control input return
C1
External signal #1 control input positive. M1 and C1 typically
