Sony ZS-M50 Service Manual page 29

MAIN BOARD (2/2) IC405 SYSTEM CONTROL (CXP740096-026Q)
Pin No. Pin name
1 MD
2 RADIO/LINE
3 ACCHK
4 NC
5 NC
6 NC
7 RDS - DATA
8 NC
9 RDS - CLK
10 CD - TURN
11 NC
12 CD - OPEN
13 CD - CLOSE
14 NC
15 NC
16 NC
17 MD - H
18 REC - H
19 MD - RST
20 MD - SCTS
21 MD - SRTS
22 MD - PDOWN
23 D/LCON
24 LCD - RST
25 LCD - CE
26 LCD - A0
27 LED - MD
28 LED - RADIO
29 LED - CD
30 NC
31 RADIO POWER
32 CD POWER
33 NC
34 NC
35 NC
36 NC
37 NC
38 NC
39 TU - SFT
40 RST
41 VSS
42 XTAL
43 EXTAL
44 SELECT - GND
45 HP - SW
46 LCD - DATA
47 LCD - CLK
48 CD - DOOR
49 JOG - A
50 JOG - B
I/O
O MD function output.
O Radio/LINE function output.
I AC power supply detection input. L : Supplied H : Not supplied
– Not used (OPEN).
– Not used (OPEN).
– Not used (OPEN).
I RDS serial data input.
– Not used (OPEN).
I RDS serial clock input.
I CD ON/OFF detection input.
– Not used (OPEN).
O CD tray control output. H : OPEN
O CD tray control output. H : CLOSE
– Not used (OPEN).
– Not used (OPEN).
– Not used (OPEN).
O D/A converter down signal output (MD play).
O D/A converter down signal output (MD recording).
O Reset signal output for MD system control.
O UART send request output to MD.
I UART send request input from MD.
O Notification of power cutoff to MD.
O Back light ON/OFF control output.
O Reset signal output to LCD.
O Chip enable output to LCD.
O Address output to LCD.
O MD LED drive output.
O BAND LED drive output.
O CD LED drive output.
– Not used (OPEN).
O Radio power supply ON/OFF control output.
O CD power supply ON/OFF control output.
– Not used (OPEN).
– Not used (OPEN).
– Not used (OPEN).
– Not used (OPEN).
– Not used (OPEN).
– Not used (OPEN).
O System clock shift output.
I System reset terminal.
– Ground.
I System clock (8MHz) oscillation input.
O System clock (8MHz) oscillation output.
O Destination select terminal.
I Headphone detection input.
O Serial data output to LCD.
O Serial clock output to LCD.
I CD tray Open/Close detection input.
I Jog dial rotation detection input (A).
I Jog dial rotation detection input (B).
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Description