2 IC PIN FUNCTIONS
−
3
−
Pin No.
PIN NAME
I/O
1
FUNC MUTE
O
Function, Mute ON/OFF Output
2
-20dB MUTE
O
-20dB Mute ON/OFF Output
3
POWER MUTE
O
Power Mute Output
4
SOURCE REC, OUT
O
Source recoding Output
5
OPTION
6
OPTION
7
PROTECT IN
I
Protect Input
8
STAND BY
O
Stand by LED ON/OFF Output
9
POWER ON/OFF
O
Power ON/OFF Output
10
AUX
O
Function, LED ON/OFF Output
11
PHONO
O
Function, LED ON/OFF Output
12
N/C
-
Non connection
13
TUNER
14
CD
15
TAPE 1
16
TAPE 2
17
Vss
I
GROUND
18,19
N/C
-
Non connection
20
RESET
I
Divice reset pluse input
21
XL 1
O
Crystal Output
22
XL 2
I
Crystal Input
23
TAPE 2 1
O
TAPE 2 Recording Output
24
TAPE 1 2
O
TAPE 1 Recording Output
25,26
KEY OUT
O
Key matrix signal Output
27,28
KEY IN
I
Key matrix signal Input
29
TAPE 2 REC IN
I
TAPE 2 Recording Input
30
TAPE 1 REC IN
I
TAPE 1 Recording Input
31
SOURCE REC, IN
I
Source recoding Input
32,34
N/C
-
Non connection
33
FUNCTION DOWN
I
Function Down Input
35
FUNCTION UP
I
Function Up Input
36
BUS IN
I
System control Input
37
REMOTE IN
I
Remote control Input
38
N/C
-
Non connection
39
Vdd
I
+5V
40
BUS OUT
O
System control Output
41
N/C
-
Non connection
42
VOLUME DOWN
O
Volume DOWN Output
43
VOLUME UP
O
Volume UP Output
44
CD DIRECT
O
CD Direct led ON/OFF Output
DESCRIPTION
Option port "HIGH" LEVEL
Function, LED ON/OFF Output
O
I
HVIANAM1224A
Содержание A-H300mk II
Страница 6: ...4 PC BOARDS AND PARTS LIST 6 INPUT PCB...
Страница 7: ...7 FRONT PCB VR CONTROL PCB POWER SWITCH PCB HEADPHONE PCB...
Страница 8: ...8 AMP PCB...
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