1-19
KD-S723R/KD-S721R
2.Terminal layout
3.Pin function
LA4743K
TAB
GND1
OUTRR-
STBY
OUTRR+
VCC1/2
OUTFR-
GND2
OUTFR+
VREF
INRR
INFR
SGND
INFL
INRF
ONTIME
OUTFL+
GND3
OUTFL-
VCC3/4
OUTRL+
MUTE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Symbol
Pin No.
Function
Header of IC
Power GND
Outpur(-) for front Rch
Stand by input
Output (+) for front Rch
Power input
Output (-) for rear Rch
Power GND
Output (+) for rear Rch
Ripple filter
Rear Rch input
Front Rch input
Signal GND
Front Lch input
Rear Lch input
Power on time control
Output (+) for rear Lch
Power GND
Output (-) for rear Lch
Power input
Output (+) for front
Muting control input
Output (-) for front
Power GND
VREF
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