JVC KS-LX200R Service Manual page 26

KS-LX200R
LA4743B (IC941) :Power amp
1.Terminal layout
1 2 3 4
2.Block diagram
3.Pin function
Pin
No. Symbol
1 TAB Header of IC
2 GND1 Power GND
3 RFO- Output (-) for front Rch
4 STBY Stand by input
5 RFO+ Output (+) for front Rch
6 VCC1/2 Power input
7 RRO- Output (-) for rear Rch
8 GND2 Power GND
9 RRO+ Output (+) for rear Rch
10 R.F Ripple filter
11 RRIN Rear Rch input
12 RFIN Front Rch input
13 SGND Signal GND
1-26
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Function
Pin
No. Symbol
14 LFIN Front Lch input
15 LRIN Rear Lch input
16 ONTIME Power on time control
17 LRO+ Output (+) for rear Lch
18 GND3 Power GND
19 LRO- Output (-) for rear Lch
20 VCC3/4 Power input
21 LFO+ Output (+) for front
22 MUTE Muting control input
23 LFO- Output (-) for front
24 GND4 Power GND
25 NC Non connection
Function