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Pin description
PIN
NAME
UD-300
CIRCUIT DESCRIPTION
1/0
FUNCTION
Reset input
(ACTIVE:L)
RESET
Tt —
FL digit control terminals
T10~T13
NC
16
ar
T14
17
18
19
|
FL driver negative power supply
-30V
FL predriver power supply
-5V
SEG
C,D,E,F,M,S
C and D also used for key scan SIGNAL
26
SEG
Y,R,J,K
SENS
Signal detection terminal for sense signal from processor and
servo IC
SQCK
Q data read clock input terminal
SQso
Q data input terminal
NC
WIRD OR
Display select
Sub-code frame sync detection signal input
FOK signal from RF amp
focus OK:H
Frame sync signal input
H:Frame sync
Analog mute control
ACTIVE:L
Not use
Dire terminal of servo IC
Not use
+5V ON/OFF control for CD
SLED LIMIT switch
INNER:L
OPEN
SW
|_/
CLOSE
SW
TRAY OPEN switch
OPEN:L
TRAY CLOSE switch
CLOSE:L
SBUSY
SDATA
CLSM
OPNM
TRAY motor close
ACTVE:H
TRAY motor open
ACTIVE: H
DATA
Signal processor and servo IC control
DATA
Signal processor and servo IC control
LATCH
Signal processor and servo IC control
CLOCK
Laser ON/OFF signal output
ACTI VE:H
—-|/O|/O};/O/}/O;O;O0);0 Systemclock terminal
Systemclock terminal
GND
GND
NC
27
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