Sony HMD-M11 Service Manual page 84

DIGITAL BOARD IC100
Pin No. Pin Name I / O
1 DAOUT0 O
2 DAOUT1 O
3 KEY0 I
4 KEY1 I
5 KEY2 I
6 CHACK-IN I
7 PACK-IN I
8 PACK-OUT I
9 I
—
10 I
—
11 AVSS
—
12 XINT
I
13 PDOWN
I
14
— I
15 SQSY
I
16 DQSY
I
17
— I
18
— I
19
— I
20 SYS-RST I
21 TEST
I
22 +3.3V
—
23 VBAT
I
24 XOUT-T
O
25 XIN-T
I
26 GND
—
27 XOUT
O
28 XIN
I
29 EXMEM
I
30 S1 O
31 I
—
32 SENS
I
33 SHOCK I
34
— I
35 I
—
36 STB O
37 REC P I
38 PB P I
39 LD LOW
O
40
— O
41 MNT2 I
42 MNT3 I
RU8X12MF-0012 (MECHANISM CONTROLLER)
Output terminal for the test
Output terminal for the test
Key input terminal Not used (fixed at "H")
Detection input from the disc chucking-in detect switch (S685)
Detection input from the disc detect switch
Detection input from the loading-out detect switch (S686)
Not used (fixed at "L")
Not used (fixed at "L")
Ground terminal
Interrupt status input from the CXD2650R (IC121)
Power down detection signal input terminal
Not used (fixed at "L")
Subcode Q sync (SCOR) input from the CXD2650R (IC121)
"L" is input every 13.3 msec
Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2650R (IC121)
"L" is input every 13.3 msec
Not used (fixed at "L")
System reset signal input from the master controller (IC700)
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
Input terminal for the test Fixed at "L" in this set
Power supply terminal (+3.3V)
Power supply terminal for the backup (for internal RAM)
Sub system clock output terminal (32.768 kHz)
Sub system clock input terminal (32.768 kHz)
Ground terminal
Main system clock output terminal (12 MHz)
Main system clock input terminal (12 MHz)
Selected terminal for the RAM device
"L": used for internal RAM, "H": used for external RAM device (fixed at "L" in this set)
System clock output terminal
Not used (fixed at "L")
Internal status (SENSE) input from the CXD2650R (IC121)
Track jump detection signal input from the CXD2650R (IC121)
Not used (fixed at "L")
Not used (fixed at "L")
Strobe signal output to the main power supply circuit
Detection input from the recording position detect switch (S688)
Detection input from the playback position detect switch (S687)
Loading motor voltage control signal output to the loading motor driver (IC361)
Not used (open)
Monitor 2 signal input from the CXD2650R (IC121)
Monitor 3 signal input from the CXD2650R (IC121)
– 89 –
Function
C1 is output when test mode
ADER is output when test mode
Not used (fixed at "H")
"L": power down, normally: "H"
Almost all, "H" is input
Almost all, "H" is input
Not used (open)
"H": power on, "L": standby mode
"L": chucking
"L" at a load-out position, others: "H"
"L": reset
"L" active
"L" active