Nx-Sw301 Block Diagram - Yamaha DVX-S301 Service Manual

A B
I NX-SW301 BLOCK DIAGRAM (2/2)
1
2
3
4
5
6
C D
CN806
SDN5P
POWER (2)
POWER
CN801
SCN4P CN802
SCN3P CN803
1
SCN2P
2 1
3 2
4 3
PRTTECTION Tr
(Q801,Q802,Q803)
CN405
VH7P
1
6
7
SP RLY_on Tr
(Q805,Q806)
RY801
+5 SDT-S-112LMR
R821
2K IC804 Q807
5 KTC3198
7
6
R822
4.7K
+5
R823
10K IC804
3 Q808
1
KTA1266
2
R824
10K
E F
CN805
SDN6P
+B
5 3,6
GND
1,2,4 2,5
-B
3 1,4
+12V
1
2
-12V
8200/50
RBV-602
C807
D802 T801
3 1
3 1
IC801
+
2
KIA7812
4
+
3 2
IC802
C808
5 2
1
KIA7912
8200/50
F801
C, V, J models ... 8A250V
K, A, B, G, L models ... T2.5A
W1A
D804
1SR139-400 SCN3P SCN3P
KLA78L05
1 3 T802
+5 IC803 3 3
+
2 2
2 C813
1
1
470/25V
CN808 CN810 TE801
D805
1SR139-400
Q809,810
C814
POWER (4)
BP
4.7/50V
SUB TRANSFORMER
G
DVR-S300/
1 1
W1B W2B
W2A
1 1
(Blue) (White)
TE802
1 1
AC IN
H
NX-P301/NX-P302
27