Motor Circuit And Switch Circuit - Panasonic SA-NS55E Service Manual

15.7. MOTOR CIRCUIT and SWITCH CIRCUIT

1 2 3
SCHEMATIC DIAGRAM - 9
A
MOTOR CIRCUIT
VREF OUT2
1 2
B
R705 R707
3.9K 3.3K
D740 - D742
B0ACCK000005
R704 R706
3.9K 3.3K
C
+
L6AAYYYD0001
D
E
W704 W705
0 0
Q700
R714 R715
56K 10K
B1ABCF000079
SWITCH
C700 R712
D701
6.3V100 100
B0ADCJ000020
C701
16V33
Q700
F 1
R710 R711
18 1/2W 56K 3
R713
2
10K
Q701
B1ACKD000006
FAN DRIVE
G
H
1 2 3
4 5 6
: + B SIGNAL LINE
IC700
C0GAG0000007
MOTOR DRIVE IC
RNF OUT1 VM VCC FIN GND RIN
3 4 5 6 7 8 9
D742 D741
R701 R700
10K 10K
C741
0.1u
MT700
REF NO. 48
R702
10k
JW701
1 FIN
2 GND
R703
3 RIN
10k
4 M_7.5V
5 PGND
6
7 GND
8 SFD
9 OP_LEVEL
10
11 DC_DET
W711
0
C702
0.1
W706
R718 R730
Q701 56K 820K 0
R717
5.6K
Q703
C704
W703
R716
10V220 0
4.7K
Q703
Q702
B1ABCF000079
R731 C703
R719 D700 D702
820K 50V2.2 DC DETECT
10K
W712
CN702
0
D700, D702
B0ACCK000005 2
1
Q702
B1ABCF000079
SWITCH
4 5 6
7 8
SWITCH CIRCUIT
JW700
SFD 3
+3.3V 2
SFU 1
W2
0
S701
K0L1BA000078
MECHA-UP
4
2
CN700
3 SFD
2 +3.3V
1 SFU
TO
MAIN CIRCUIT
(CN701B)
SFU
IN SCHEMATIC
DIAGRAM - 2
9.6V
FAN1(+)
FAN
FAN2(-)
7 8
65
9 10 11
S700
K0L1BA000078
MECHA-DOWN
3 4 3
1 2 1
SA-NS55E/EG MOTOR / SWITCH CIRCUIT
9 10 11
SA-NS55E / SA-NS55EG
12 13 14
A
B
C
D
E
F
G
H
12 13 14