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UD-301/351
2-2. Pin Description (u.PD75217GF-616)
Pin No.
Name
CIRCUIT DESCRIPTION
2-3. IC5 Pin Description (I/O EXPANDER:
Description
1
| RESET
Reget input terminal
2to11_| 1G~10G
L digit contro! terminals.
12 to 17 | p~k
L segment control terminals
KEY SCAN).
egative power supply for FL
river (~35 V)
egative power supply for FL
grid driver (—5 V}
20 to 25
FL segment control terminals
(KEY SCAN)
Power supply (+5 V)
27 to 30
FL segment control terminals
(KEY SCAN)
31
SENSE detection termina!
from signal processing IC
32
Q-data reading clock output
terminal
33
Q-data input terminal
Mechanism
photo-interpreter
input (PHI)
Data input terminal from
TC74HC165
Sub-code frame sink detection
signal terminal
FOK
|
POK signal input termina!
GFS
I
Frame signal input terminal
DIRC
O
Direct control terminal of ser-
vo IC
40
LDC
O
Laser signal output terminal
MUTG
O
1)
41
42
Digital mute output terminal
Clock output terminal of sigm-
nal processing IC
Data output terminal of signal
processing IC
Latch output termina! of signa!
processing IC
SL
Latch output terminal of
TC74HC165
CK
Clock output terminal of
TC74HC165
SDATA
DATA signal input/output for
serial communication
BUSY
BUSY signal input/output for
serial communication
DOORSW
Mechanism
door SW input
terminal (SW)
UNLOADM
echanism
unloading motor
control (L. M.)
UPM
Mechanism
UP motor conytrol
V.M.)
DOWNM
Mechanism
DOWN
motor
control (V. M.)
SOL
Mechanism
solenoid control
LOADM
echanism
loading motor
control (L. M.)
H. SPEED
0
Circuit switching output during
double speed operatiopn (Ac-
tive L)
System clock input terminal
Unused
GND
GND connection
Unused
(Open)
Key return input of key matrix
TC74HC 165AP)
Name
Description
SL
Shift load input terminal
PCLK
Clock input terminal
MAGSW
Magazine switch input ter-
minal (SW4)
MRYSW
Memory switch input termi-
nal (SW3)
UNLOADSW
Unload switch input termi-
nal (SW5)
LOADSW
Load switch input terminal
(SW5)
Unused
GND
GND
PDATA
Data output terminal
oa
Unused
HOMESW
Home position switch input
terminal (SW2)
SLTSW
Start limit switch (SW 1)
CLSSW
Close switch input terminal
(SW6)
OPNSW
Open switch
input terminal
(SW6)
Unused
Power supply (+5 V)
TEST MODE
1)
2)
The operation gets in the test mode when pins (2)
and (3) of X32-2280 are short-circuited.
Load the compact disc (CD) for check in the #6
magazine pack.
Enabled keys and functions
Key name
Function
Indication
Disc No. key] The disc is loaded
STOP
Focus servo
Tracking servo
Feed servo
RANDOM
Focus servo
Tracking servo
Feed servo
Servo ON
605
Trays of DISC 1 to DISC
6 are pulled
Trays of DISC 3 to DISC
6 are pulled and TOC is
read.
TEST MODE is cancelled
after finishing that, and
DISC6 is played back.
flickers
[B] flickers
All FL light up.
TRACK No.
flickers
Ali FL are light OFF
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