Yamaha DSP-AX1800 - Page 123

IC451
IC450
CB453
A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V1800/HTR-6190/DSP-AX1800
123
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
FUNCTION 2/4
0
0
0
0
0
0
0 -6.1
0
6.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-6.1
0
6.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
F-SW1
F-SW1: INPUT FUNCTION 1
F-SW2: INPUT FUNCTION 2
*
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
IC450, 451: BD3841FS
Function switch
DGND
F-SW2
CL DA VEE BIAS VCC RECA1 RECA2 RECB1 RECB2 RECC1 RECC2 OUT1 OUT2 INI1 INI2
INA1 INA2 INB1 INB2
INC1 INC2 IND1 IND2
INE1 INE2
INF1 INF2
ING1 ING2
INH1 INH2
LOGIC
+ – + – + – + –
FUNCTION (1)
INPUT/ZONE3
SELECTOR
REC/ZONE2
SELECTOR
to FL (4)_CB965
Page 137
to FUNCTION 1/4
M2