34
CRX-E300
CRX-E300
KEY INPUT (A-D) PULL UP RESISTOR 33k
Ω
+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
1
4
Destination select input (Input)
[Pull Up
→
VREF at 10k
Ω
]
2
6
3
COM
4
7
5
5
Headphone detect IN
[0: SP, 1: HP]
6
INHIBIT
7
VEE
8
GND
9
C
10
B
11
A
12
3
KEY 2 input
[Pull Up
→
VREF at 10k
Ω
]
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 10k
Ω
]
15
2
KEY 1 input
[Pull Up
→
VREF at 10k
Ω
]
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
www. xiaoyu163. com
QQ 376315150
9
9
2
8
9
4
2
9
8
TEL 13942296513
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