Pin
No.
Mark I/O Function
57 LCDCK O LCD clock test signal
output terminal (Connected
to power supply through
resistor)
58 ADRS
TEST
RXD
O Test signal output terminal
(Connected to power
supply through resistor)
59 LCD
DATA
TXD
O Test signal output terminal
(Not used, open)
60 VREF- — Connected to GND
61 TEMP I Temprature sensor amp
input terminal
62 KEY1 I Key input 1 terminal
63 KEY2 I Key input 2 terminal
64 MO
LOAD
I Test signal input terminal
(“L”:Without loading
mechanism) (Open)
65
SRVTEST
I Test signal input terminal
(“L”:Servo test mode)
(Open)
66 LOAD P I Test signal input terminal
(Open)
67 TEST
KEY IN
I Test signal input terminal
(“L”:Unit key mode) (Open)
68 SRV
LOAD
I Test signal input terminal
(“L”:Using for servo
primary values EEPROM)
69 VCC 3V I Power supply terminal (+3V)
70 VCC 5V I Power supply terminal (+5V)
71
SELADDA
I AD/DA converter select
signal input terminal (Open)
72 SLOCK O Spindle lock test signal
output terminal (Not used,
open)
73 TLOCK O Tracking lock signal output
terminal (“H”:lock) (Not
used, open)
74 FLOCK O Focus lock test signal
output terminal (“H”:lock)
(Not used, open)
75 ERROR O Servo error test signal
output terminal (Not used,
open)
50