34
CRX-E300
CRX-E300
●
KEY INPUT (A-D) PULL UP RESISTOR 33k
Ω
Ω
V
KEY 0
KEY 1
KEY 2
0
0 — 0.556
STANDBY/ON
PRESET/BAND
DISPLAY
+6.8k
— 1.111
PRESET/TUNING
AUTO/MAN'L
TIMER
MEMORY
TIME ADJ
+8.2k
— 2.222
OPEN/CLOSE
NO KEY
NO KEY
+5.6k
— 1.667
PRESET/TUNING
STOP
PLAY/PAUSE
● TUNER MARKET SELECT IN (IC202 1 pin) PULL UP RESISTOR 10k
Ω
Ω
V
Market
0
0 — 0.556
R, K models R, K models
(50k / 9k)
2k
— 1.111
(100k / 10k)
6.2k
— 2.222
B, G models
10k
— 2.778
U, C models
16k
—3.333
J model
3.9k
— 1.667
A model
No. Name Function
14Destination select input (Input) [Pull Up → VREF at 10kΩ]
26
3 COM
47
5 5 Headphone detect IN [0: SP, 1: HP]
6 INHIBIT
7 VEE
8 GND
9C
10 B
11 A
12 3 KEY 2 input [Pull Up → VREF at 10kΩ]
13 0 Expansion IN port 2 (TC74HC4051A) OUT intake IN [Connected to pin No. 3 of 4051A]
14 1 KEY 0 input [Pull Up → VREF at 10kΩ]
15 2 KEY 1 input [Pull Up → VREF at 10kΩ]
16 VCC
16
VCC
6
INHIBIT
11
3
9
A
C
B
8
GND
7
VEE
13
0
14
1
15
2
12
3
1
4
5
5
LEVEL
CONVERTER
10
BINARY TO 1-OF-8
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
2
6
4
7
SW
SW
COM
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
"ON" CHANNNEL
0
1
2
3
4
5
6
7
NONE
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
IC202: TC74HC4051AF (OPERATION P.C.B.)
Analog Multiplexer/Demultiplexer
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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