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C001 to C008, C013, C014, C022 to C5, C888, C89, NF COIL1
5A
From outdoor microcomputer to indoor microcomputer.
C
V
9
0
The request signal output from microcomputer pin
,
,
,
is input to the transmitting circuit. The
transmitting circuit modulates this signal by approx. 38kHz high-frequency. This high-frequency signal
is amplified by a transistor, superimposed on the DC 35V line via C801 (or C811, C821, C831) and
L801 (or L802, L803, L804) and supplied to the indoor unit.
– 52 –
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