11
11
TA-FA777ES
4-5.
SCHEMATIC DIAGRAM – BALANCE/FUNCTION SW/SP TM/INPUT (2/2) /HP/TONE CONTROL (2/2) /PRO.LED Boards –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
• IC Block Diagram
IC601
µPC1237HA
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
VCC ON
MUTE
AC OFF
DET
OVER LOAD DET
OFFSET DET
AUTO RESET
AC OFF DET
GND
RELAY DRIVE
VCC ON MUTE
VCC
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