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HCD-GTK1i/GTK2i
IC201 R2A15909SP (MAIN BOARD (2/3))
IC800 STK403-090-E (MAIN BOARD (3/3))
IC504 NJM2903V (TE2) (MAIN BOARD (2/3))
INR1
INR2
INR3
INR4
INR5
DIFFR
DIFFG
DIFFL
INL5
INL4
INL3
INL2
INL1
AGND
REFIN
VCC
CEXT
DePop
I2C
I/F
I/F
SCL
SDA
DGND
IGOUTL
VOLINL
IGOUTR
VOLINR
TREL
BASSL1
BASSL2
BASSR2
BASSR1
TRER
LOUT
ROUT
Surround
Mode selector
Input
selector
selector
Volume
O to -55dB, -
9 to -55dB, -
O to +12dB
/2dB step
O to +12dB
/2dB step
Volume
mute
mute
Tone Control
Rch Bass/T
reble
Tone Control
Lch Bass/T
reble
Input
selector
selector
Input gate
control
REF
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
+
+
A OUTPUT
A- INPUT
A+ INPUT
GND
B+ INPUT
B- INPUT
B OUTPUT
V+
A
B
8
7
6
5
4
3
2
1
-PRE
-VCC
+VCC
LO+
LO-
RO+
RO-
RO-
+PRE
SUB
GND
LI+
LI-
LI-
ST-BY
RI-
RI+
Pre Driver
CH1
Pre Driver
CH2
Bias Circuit
SUB
1
2
3
4
5
6
7
8
5
6
7
8
9
10
11
12
11
12
13
14
15
Ver. 1.2
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