HCD-GT111/GT222/GT444/GT555
55
– MAIN Board –
IC407 R2A15216FP
INDR
6 INPUT
SELECTOR
(R-CH)
INER
INFR
GAMER
INGAINOUTR
RECAR
INCR
INBR
INAR
DPLR/SURR
DPLL/SURL
TRER
TONE
R
(TRE,
MID,
BASS)
MID1R
MID2R
BASS1R
BASS2R
VOCAL CUT
REFERENCE
SURROUND OR DPL IN
RECBR
+
+
+
+
SA1
SA2
+
TONEOUTR
BB1R
DA
TA
CLK
AGCC
OUTR
AGCOUTR
SWOUT
BB2R
VOLINR
ELECTRICAL
VOLUME
MCU
INTERFACE
AUTO
GAIN
CONTROL
+
INDL
6 INPUT
SELECTOR
(L-CH)
INEL
INFL
GAMEL
INGAINOUTL
RECAL
INAL
INBL
INCL
MIC
VC
TREL
TONE
L
(TRE,
MID,
BASS)
MID1L
MID2L
BASS1L
BASS2L
RECBL
+
+
+
TONEOUTL
BB1L
OUTL
AGCOUTL
BB2L
VOLINL
ELECTRICAL
VOLUME
REFIN
REFOUT
VCC
GND
1
2
3
4
5
6
10
11
12
13
14
7
8
9
15
17
21 22
24
19
20
23
18
16
28
26
25
27
42
41
40
39
38
37
35
34
33
32
31
36
30
29
54
55
52
53
56
43
44
45
46
47
48
49
50
51
IC670, 672 TC74HC4066AFT (EL)
1I/O
VCC
1
14
1C
13
4C
12
4I/O
11
4O/I
10
1O/I 2
2O/I 3
2I/O 4
2C 5
3C 6
GND 7
3O/I
9
3I/O
8
SELECT 11
1
1A 2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
IC673 TC74VHC157FT (EKJ)