Pin
No.
Mark I/O Function
23 PC O Spindle motor ON signal
output (“L”: ON)
24 ECM O Spindle motor drive
signal output (forced
mode output)
25 ECS O Spindle motor drive
signal output (servo error
signal output)
26 KICK O N.C.
27 TRD O Tracking drive output
28 FOD O Focus drive output
29 VREF I D/A (drive) output
(TVD,ECS, TRD, FOD,
FBAL, TBAL) reference
voltage input
30 FBAL O Focus balance
adjustment output
31 TBAL O Tracking balance
adjustment output
32 FE I Focus error signal input
(analog input)
33 TE I Tracking error signal
input (analog input)
34 RFENV I RF envelope signal input
35 VDET I Vibration detection signal
input (“H”: detection)
36 OFT I Off-track signal input (“H”
: off track)
37 TRCRS I Track cross signal input
38 /RFDET I RF detection signal input
(“L”: detection)
39 BDO I Dropout signal input (“H”:
Dropout)
40 LDON O Laser on signal output
(“H”: ON)
41 PLLF2 I/O N.C.
42 DSLF2 O Tracking Offset
alignment output/DSL
Balance Output (DA
Output)
43 WVEL O N.C.
44 ARF I RF signal input
45 IREF I Reference current input
39