Sony MXD-D40 - Md Player, Руководство по обслуживанию

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