JVC FS-A52 Service Manual page 32

FS-A52
3. Pin function (1/2)
Symbol
Pin No.
1 FAUX2
2 NC
3 RDSDATA
4 MPX
5 TUST
6 NC
7 FTUNER
8 FCD
9 VDD
10 NC
11 PBMUTE
12 NC
13 PIN
14 LEDCTL
15 BUZER
16 MDPOUT
17 MDRESET
18 SMUTE
19 NC
20 NC
21 POUT
22 VPP
23 UP
24 RMT0
25 RMT1
26 MIDDLE
27 DOWN
28 RMSPEED
29 VOLCK
30 VOLCE
31 VOLDA
32 AHB
33 BUB
34 BTCL
35 NC
36 XKILL
37 VDD
38 X1
39 X2
40 VSS
41 XT2
42 XT1
43 RESET
44 REM
45 RDSCK
46 NC
47 PHOTO
48
SAFTEY4
49
NC
50 NC
1-32
I/O
Not connected
-
Not connected
-
Not connected
-
I Stereo detection
Stereo indicator detection
I
Not connected
O
Tuner switch output
O
CD switch output
O
- Connected with VDD
Not connected
-
PB mute output
O
Not connected
-
Power key input
I
O LED control output
Buzzer output
O
MD PB output
O
MD reset output
O
System mute output
O
- Not connected
Not connected
-
Power-on control output
O
GND
I
Door position detection - UP
I
O Door open/shut motor control output
Door open/shut motor control output
O
Door position detection - MIDDLE
I
Door position detection - DOWN
I
Door open/shut motor speed control output
O
O Volume control clock
Volume control chip enable
O
Volume control data
O
Active hyper bus control
O
Backup detection
I
O Battery control
Not connected
O
Power-off clock oscillator control
I/O
Power supply
I
Master clock
I
O Master clock
GND
I
Clock for timer
O
Clock for timer
I
Power-on reset
I
I Remote control sensor
Not connected
-
Not connected
-
Reel pulse detection
I
Current detection
I
-
Not connected
- Not connected
Description