(2) Unmuted monitoring circuits.
The unmuted monitoring signal is
applied from the RT to the MT-1029 J24 pin S (through MT-1029 to J22 pin H)
to P1 pin H of the J-3513/U (Figure 60).
In the J-3513/U the signal is
applied to pin B of J5, and to the phone circuit of the audio accessory,
also to pin H of J7, then through the CX-4723 to the AM-1780 pin H. In the
AM-1780 the signal is applied through K501 to J504, J505, J506, and J507 pin
M. Then through the CX-4723 to the C-2298 pin M, to the MONITOR switch (set
to A).
Then to J802 and J803 pins B and E and to the audio accessory.
(Trace this circuit on your system diagram.)
Figure 60.
Unmuted monitoring circuit.
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