R873
R875
47k
47k
R871
R874
R877
47k
47k
47k
1
RB531
RET-CN
100
7
CN7
(20/35)
20
RET-1-ON
5
CN7
(21/35)
21
RET-2-ON
3
CN7
(19/35)
19
RET-3-ON
1
CN7
(18/35)
18
RET-INCOM2-MIC-ON
CN7
(17/35)
17
RET-INCOM1-MIC-ON
R882
D521
CN7
(22/35)
22
GND
100
1SS388(TPL3)
D525
GND
1SS388(TPL3)
2
IC585
TC7W53FK(TE85R)
+3.3V(STBY)
R878
0
A10(AK9813) H:MIX
013
STBY-VR-MIX
5
006
Front-vol-in(STBY)
3
3
006
VR-INCOM-ENG(STBY)
6
+
1
R872
R885
2
-
220k
220k
IC581
(2/3)
GND
TLC272CPWR-12
TLC272CPWR-12
A09(AK9813) H:Disable L:Enable
013
STBY-VR-FRSW-EN
Front/Rear Select SW Enable
TC7WH157FK(TE85R)
UC
R886
ST-INC-ENG(FR)
R887
ST-INC-FR(ENG)
CE
005,013
INCOM-SW(STBY)
4
UC:0V CE:5V
013
PANEL-ID5(INCOM)
+5V(STBY)
R883
47k
CE:3.3V UC:0V
CN5
(23/25)
23
PANEL-ID(INCOM)
R881
CN5
(1/25)
1
GND
47k
NM
CN5
(24/25)
24
R889
GND
1k
2
CN5
(25/25)
GND
25
26
1
GND
5
SW PANEL
UC
CE
Rear ON (MIC ON)
PROD
Rear OFF
OFF
Font OFF
ENG (MIC ON)
PROD
Rear
ENG
Front
A
B
+3.3V
C761
1uF
IC584
TC74LCX245FT(EKJ)
20
GND
RET-CN-IN
004
8
18
VCC
2
RETCN-RET1
B1
A1
6
17
3
RETCN-RET2
B2
A2
4
16
4
RETCN-RET3
B3
A3
2
15
5
RETCN-INC2MIC-ON
B4
A4
14
6
RETCN-INC1MIC-ON
B5
A5
13
7
B6
A6
12
8
B7
A7
11
9
B8
A8
19
OE
1
DIR
GND
10
GND
RET-INCOM1-MIC-on
013
+5V(STBY)
C763
0.1uF
8
7
1
GND
VCC
CH0
COMMON
FrontVR-DC-out
006
L
6
CH1
H
5
A
2
INH
VEE
GND
3
4
C762
0.1uF
GND
-5V(STBY)
+5V(STBY)
C766
0.1uF
JC501
0
NM
GND
8
+
7
7
1
VCC
CH0
COMMON
STBY-VR
014
L
-
IC587
6
TC7W53FK(TE85R)
CH1
H
5
A
2
IC581
(1/3)
INH
VEE
GND
3
4
C765
0.1uF
GND
-5V(STBY)
+5V(STBY)
IC582
+5V(STBY)
IC581 (3/3)
TLC272CPWR-12
+5V(STBY)
R888
R891
C767
5
8
2
47k
47k
0.1uF
4
100
1
VCC
5
1
A
L
Y
100
2
3
V+
3
B
H
Y
C768
6
GND
GND
0.1uF
SELECT
7
IC586
ST
GND
TC7SH32FU(T5RSOYJF)
GND
-5V(STBY)
4
Front/Rear VR Select
GND
PANEL-ID5(INCOM)
013
+3.3V
C764
1uF
5
DAP-PLD
4
GND
PANEL-ID(INCOM)
008
R893
100
3
IC583
TC7SH32FU(T5RSOYJF)
GND
C
SY-363 (13/15)
SY-363 (13/15)
CN1
(65/200)
65
Stanby-RET2-SW-in
CN9
(9/15)
9
Incom-ON(Buildup)-in
005
013
RET-INCOM1-MIC-on
UC L:Rear MIC ON
ST-INC-PRD(RE)
ST-INC-ENG(FR)
CE L:ENG
005,013
INCOM-SW(STBY)
UC:0V CE:5V
013
PANEL-ID5(INCOM)
008
INCOM-3W
RB532
100
7
8
INC3W-DIN
5
6
INC3W-CLK
3
4
INC3W-LD
1
2
INC3W-DOUT
R898
10k
GND
IC590
TC7SH04FU(T5RSOYJF)
+5V
+5V(STBY)
R895
2
10k
5
TC7WH123FK(TE85R)
VDD
1
2
4
OUT
3 1
C771
0.1uF
4
5
1SS362-TE85L
NC
CD
C770
GND
0.1uF
3
NM
GND
GND
C760
IC589
2.2uF
R3112N451A-TR-FA
1608
IC591
TC7WH123FK(TE85R)
+5V(STBY)
D524
+5V(STBY)
1SS362-TE85L
C780
0.1uF
R897
680k
8
VCC
GND
7
RX/CX
5
C769
Q
4.7uF
6
3216
CX
1
005
PW-SW-OFF
A
2
+5V(STBY)
B
3
CLR
GND
4
GND
3-68
3-68
D
E
IC594
TC7SH04FU(T5RSOYJF)
IC595
TC7SH08FU(T5RSOYJF)
+5V(STBY)
C777
R913
0.1uF
100k
R926
R901
47k
100
GND
5
5
D523
2
4
2
R906
DAP222-TL
FB581
100
3
1
1
3 1
C772
2
GND
3
0.01uF
GND
R929
GND
C776
100
R930
0.01uF
100
Handle-INC-SW
NM
R879
100
GND
+5V(STBY)
R904
R905
10k
10k
013,014
STBY/NRML
8
R902
100
1
VCC
5
A
L
Y
R903
100
2
3
B
H
Y
6
SELECT
7
ST
GND
C773
0.1uF
4
IC592
TC7WH157FK(TE85R)
GND
R911
+5V(STBY)
100
C774
IC593
C775
10uF
AK9813BF-E2
0.1uF
14
13
Hi=0.5VCC
VCC
VDD
C779
20
17
C778
0.01uF
DI
DO
0.01uF
R907
100
22
12
R914
100
EA1
AO12
21
11
R915
100
GND
EA0
AO11
R916
1k
R908
10
100
AO10
R917
1k
19
9
CLK
AO9
8
R918
1k
R909
AO8
100
R919
1k
16
7
R899
R900
ECL
AO7
10k
10k
R920
1k
6
AO6
18
5
R921
1k
CS/LD
AO5
R922
100
4
AO4
R923
1k
3
AO3
2
R924
1k
iG1-1
AO2
LD
15
1
R925
1k
iG1-0
SEL
AO1
GND
VSS
23
24
GND
Q621
DTC114EE-TL
GND
IC588
STBY/NRML
013,014
+5V(STBY)
R927
D522
1k
R894
680k
8
+5V(STBY)
7
VCC
IC596
RX/CX
TC7SH32FU(T5RSOYJF)
5
5
2
Q
4
6
1
STBY-MUTE
014
CX
R896
1
1k
3
A
2
GND
B
3
CLR
GND
4
GND
F
4
Standby-MIC-ON/OFF
014
(74/200)
CN1
FAN(Rear)-Cont-out
74
FAN(Front)-Cont-out
68
(68/200)
CN1
STBY-VR-MIX
013
STBY-VR-FRSW-EN
013
MIC/RTS-Talk
014
INCOM-RTS/CC
014
incom1-UNBAL-ON/OFF 014
incom1-pw-ON/OFF
014
incom1-GAIN
014
10
11=-20dB
01=-40dB
00=-60dB
CA-PW-CTL
005
SY-363 (13/15)
BOARD NO. 1-879-606-11
HSC-300_SY-363_011_13
HXC-100/V2 (J, E)
G
H