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51
HCD-GNX600
– DRIVER Board –
IC701, 712 BA6956AN
– CD Board –
IC251 BA5947FM-E2
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
1
2
3
4
5
6
7
8
9
10
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
POW
VCC
R
F
10k
CH1OUTF
CH1OUTR
CH2OUTF
CH2OUTR
POWVCC
CNF4
GND
GND
CH2RIN
CH2FIN
CH1RIN
CH1FIN
SW
OPIN+
OPIN-
CH4OUTR
CH4OUTF
CH3OUTF
CH3OUTR
POWVCC
MUTE
GND
GND
CH3RIN
CH3FIN
CH4IN
CH4CAP
A
OUTVREF
DPOUT
PREVCC
D
D
D
D
D
D
D
D
• IC Block Diagrams
2
OSC
ADPCM
DECODE
DELAY
DRAM
ADPCM
ENCODE
ADC
DAC
S/H
POST
LPF
ALC
VOLUME CONTROL
OSCC
1
VDD
3
OSCR
4
NC
5
VOL1 (CS)
6
VOL2 (SCL)
7
VOL3 (SDA)
8
NC
9
VRO
VREF
VDA
NC
ALC1
MC1N
MC1P
15
16
14
13
12
11
10
VREF
VREF
VREF
VREF
ALC
VREF
MC2P
17
MC2N
18
ALC1
19
NC
20
VSA
21
MCO
22
PRIN
23
ADIN
24
NC
25
DA OUT
26
VOLST
27
NC
28
TEST
29
POOUT
30
VSS
– MIC Board –
IC1400 TC9488FG