Sony MDS-JE700 - Mini Disc Player Service Manual page 59

• IC401 System Control (RU8X11AMF-0113)
Pin No. Pin Name
1
DAOUT 0
2 DAOUT 1
3 to 5
KEY 0 to KEY 2
6
CHUCK IN
7
PACK IN
8
PACK OUT
9
TIMER SW
10
SOURCE SW
11
(AVSS)
12
XINT
13
POWER DOWN
14 REMOCON
15
SQSY
16
DQSY
17 CNTRL A1 IN
18
—
19 —
20
SYSTEM-RST
21 (TEST)
22
3.3V
23 VBAT
24
XOUT-T
25
XIN-T
26
GND
27
XOUT
28 XIN
29
GND
30 (S1)
31
—
32
SENS
33 SHOCK
34
REC/OTHER
35 —
36
STB
37
REC P
38
PLAY
39
LOAD V
40 —
I/O
O Test pin. C1 is output when test mode (Not used)
O Test pin. ADER is output when test mode (Not used)
I Key input pin (D/A input)
I Detection input from the chucking-in switch "L": Chucking
I Detection input from the disc detection switch
I Detection input from the loading out switch. Loaded out position: "L", Others: "H"
I
Key input pin (D/A input)
I
— Ground (Analog)
I Interrupt status input from the CXD2650R
I POWER DOWN signal input "L": Down
I Remote control signal interrupt input
ATP address sync or subcode Q sync (SCOR) input from the CXD2650R
I
"L" is input every 13.3 msec Almost all, "H"
Digital-In U-bit CD format subcode Q sync (SCOR) input from the CXD2650R
I
"L" is input every 13.3 msec Almost all, "H"
I CONTROL A1 signal input
O
Not used
O
System reset signal input
I
For several hundreds msec after the power supply rises, "L" is input, then it changes to "H"
I Test pin (Fixed at "L")
— +3.3V power supply
— Power supply pin to RTC (clock) and RAM
O Clock output (32.768 kHz) (For clock)
I Clock input (32.768 kHz) (For clock)
— Ground
O Main clock output (12 MHz)
I Main clock input (12 MHz)
— Ground
O
Not used
O
I Internal status (SENSE) input from the CXD2650R
I Track jump signal input from the CXD2650R
I BEEP sound output switching signal input (Not used)
I Not used
O Strobe signal output to the power supply circuit Power supply ON: "H", stand by: "L"
I Detection signal input from the recording position detection switch
I Detection signal input from the playback position detection switch
O Loading motor voltage control output
O Not used
— 73 —
Function