Sony MXD-D40 Service Manual page 78

MXD-D40
Pin No. Pin Name
86 DSENSE
87 PRTC_SW
88
SOFT_TEST
89
KEY3
90
KEY2
91
KEY1
92
KEY0
93 SPEC _IN
94 LEVEL_L
95 LEVEL_R
96 AVSS
97 TE
98 VREF
99 AVCC
100 XRST
78
I/O
Detection input from the disc in detect sensor on the CD mechanism block
I
"H": disc detected Not used (open)
Detection input from the CD tray door open/close detect switch input terminal
I
"L": when CD lid is open, "H": when CD lid is close Not used (open)
I Not used (open)
Key input terminal (A/D input) S741 to S746 (x (MD), X (MD), H (MD), M (MD), RECz,
I
A EJECT keys input)
Key input terminal (A/D input) S731 to S736 (m (MD), MENU/NO, YES, CD SYNCHRO
I
HIGH, CD SYNCHRO NORMAL, A OPEN/ CLOSE keys input)
Key input terminal (A/D input) S721 to S729 (l AMS L PUSH ENTER (MD)
I TIME/CHAR MD, PLAY MODE MD, INPUT, DISPLAY, PLAY MODE CD,TIME CD,
CLEAR (CD) keys input)
Key input terminal (A/D input) S701 to S707 (l AMS L PUSH ENTER (CD),
I
x (CD), X (CD), H (CD), REC-IT, M (CD), m (CD), I/1 keys input)
I Destination setting terminal (fixed at "H")
I L-ch level input from the MD mechanism controller (IC801)
I R-ch level input from the MD mechanism controller (IC801)
— Ground terminal
I Tracking error signal input terminal Not used (open)
I Reference voltage (+5V) input terminal (for A/D converter)
— Power supply terminal (+5V) (for analog system )
O Reset signal output to the CD block
Description