XL-505/505C,CP-505B
– 36 –
DMFK
H
Motor acceleration
DMSV
PWM
CLV servo ON
DMBK
L
Motor deceleration
DMOFF
VREF
CLV servo OFF
IC802 VHiTC9284BF-1:Servo/Signal Control (TC9284BF) (1/2)
1
GNDA
—
Analog grand terminal fo DA vonverter (R channel)
2
RO
Output
R channel data forward output terminal.
3*
RO
Output
R channel data reverse output terminal.
4
VDA
—
Analog power supply terminal for DA converter.
5*
LO
Output
L channel data reverse output terminal.
6
LO
Output
L channel data forward output terminal.
7
GNDA
—
Analog grand terminal for DA converter (L channel)
8*-10*
TEST3-TEST5
Input
Test terminal. Normally, keep at "H" level or open.
11*
SBOK
Output
Subcode Q data CRC check adjusting result output terminal.
The adjusting result is OK at "H" level.
12
VDD
—
Digital supply voltage terminal. (+5V)
13
GND
—
Digital ground terminal.
14-17
BUS0-BUS3
In/Output
Command and data sending/receiving input/output terminals.
18
CCE
Input
Command and data sending/receiving chip enable signal input terminal.
The bus line becomes active at "L" level.
19
BUCK
Input
Command and data sending/receiving clock input terminal.
20*
PFCK
Output
Regeneration system frame periodic signal output terminal. 7.35 kHz
21
RST
Input
Reset input terminal. The internal system is reset at "L" level.
22*
SUBSYC
Output
Subcode sync signal output terminals.
23*
SUBD
Output
Subcode P~W output terminals.
24*
CLCK
Input
Subcode P~W data readout clock input terminal.
25
VDD
—
Digital supply voltage terminal.
26
GND
—
Digital ground terminal.
27*
DFCT
Output
Defect detection signal output terminal. VREF when defect is detected. Normally, HiZ.
28,29
TEL2,1
Output
Tracking gain adjusting analog switch output terminals VREF or Hiz.
30
TGUL
Output
Tracking servo loop low frequency phase compensator change-over analog switch output
terminal. HiZ (gain up) when detecting shock. Normally, VREF.
31*,32
TGUH2,1
Output
Tracking servo loop middle/high frequecy phase compensator change-over analog switch
output terminals. HiZ (gain up) when detecting shock. Normally, VREF. TGUH1 is used at
normal regeneration and TGUH2 is used at double speed regeneration.
33
TKIC
Output
Tracking actuator kick signal output terminal. Kicks in the outer circumferential direction ar "H"
level and in the inner circumferential direction at "L" level.
34
FMON
Output
Feed servo ON/OFF analog switch output terminals.
Servo on at "Hiz".
Servo off at "VREF".
35*
TEST1
Input
Test terminal. Normally, keep at "H" level or open.
36
FMFB
Output
Feed motor FWD/BWD feeding control signal output terminal. Feed in the outer circumferential
direction at "H" level and in the inner circumferential direction at "L" level.
37*
TEST
Input
Test terminal. Normally, keep at "H" level or open.
38
DMON
Output
Disc motor driving circuit gain change-over analog switch output terminal.
39
DMFC
Output
Disc motor CLV servo AFC signal output terminal.
40
DMPC
Output
Disc motor CLV servo APC signal output terminal.
41
2VREF
Input
Double times reference voltage input terminal. (VREF x2)
42
SEL
Output
Servo mode indicating signal output terminal.
Pin No.
Port Name
Function
Input/Output
COMMAND
DMFC OUTPUT
OPERATION
SEL
LD ON/OFF
L
OFF
OFF
LD OFF
HiZ
ON
OFF
Focus Search
H
ON
ON
Normal play, etc.
Focus Servo ON : FOK
FOCUS SERVO
OPERATION
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.