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HCD-GN880
50
50
HCD-GN880
7-24. SCHEMATIC DIAGRAM – PRIMARY BOARD –
7-25. IC Block Diagram
– BD Board –
IC251 BA5947FM
– DRIVER Board –
IC701, 712 BA6956AN
15
16
17
18
19
20
21
22
23
24
25
26
27
36
28
29
30
31
32
33
34
35
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LEVEL
SHIFT
F
R
R
F
R
F
F
19k
6.5k
50k 50k
100k
50k
PIN3
10k
Vref
50k 50k
PIN26
(ch1, 2)
POW
VCC
(ch3, 4)
SW
Pre
Vcc
INTER
FACE
INTER
FACE
INTER
FACE
R
F
50k 50k
POW
VCC
MUTE
Vref
POW
VCC
R
F
10k
CH1PUTF
CH1OUTR
CH2OUTF
CH2OUTR
POWVCC
CNF4
GND
C-M
C-P
VG
CH2RIN
CH2FIN
CH1RIN
CH1FIN
SW
OPIN+
OPIN-
NC
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
GND
PREGND
CT
CH3RIN
CH3FIN
CH4IN
CH4CAPA
OUTVREF
DPOUT
TREVCC
NC
D
D
D
D
D
D
D
D
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
CN1000
D1000
Q1000
C1003
NO1001
R1000
R1001
L1001
18uH
C1001
C1000
C1005
CN1002
RY1000
NO1000
S1000
CN1001
C1002
B1000
R1003
JW1006
JW1008
JW1001
JW1002
JW1009
JW1007
JW1005
JW1000
2P
1SS355
2SC2412K
T-146-R
0.01
2P
4.7k
100k
0.1
0.01
1000
6.3V
3P
RELAY
5V
WIRE
0.1
0
SWITCHING
REGULATOR
POWER
TRANSFORMER
MX
MX
MX
AUS
AC IN
220-240V
220V
VOLTAGE SELECTOR
120V
E2,E3,E51,AUS
E2,E3,E51,AUS
E2,E3,E51,AUS
Q1000
POWER ON/OFF
RELAY DRIVE
T601
E2,E3,E51
E2,E3,E51