Sony TC-766-2 Service Manual page 58

TC-766-2
15. Record Muting (Refer to Fig. 17)
Record muting is operated by turning Q106
(Q306) of the audio amp circuit ON.
l.
In playback mode, the record mode switch
$103 (S303) adds B+ to Q103 (Q303) turning
it ON and record muting is operated.
(Path @) )
In the situation where the Record and Forward
buttons are not pressed, with the REC MODE
switch set to the record position, Q744 of the
flip-flop circuit is OFF and B+ through D759
turns ON Q741, which turns ON Q106 (Q306)
to activate record muting. (Path (@) )
When the record and forward buttons are
pressed and remote control RM-30 is used,
when record muting switch is ON, B+ turns
ON Q741 through D760, which turns ON Q106
(Q306) to activate record muting. (Path @)
record muting
$103-I
REC MODE
B+
[audio amp circuit board]
B+
Fig. 17
B+
0744
e B+
REC MUTE
R766
@ oF
~~ _ ' J
RM-30