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CLD-S360, CLD-S260
@ PDO171B (IC101)
Mechanism Control
i
a
Outputs tilt drive after PWM, and is used in
3 | RECORR | O | RF correction switching signal output pin
H: increases gain
15 | SQOUT
DSP read command data input pin
SUBQ is read.
Increases gain at internal circumference of
116{ COIN.
| O| DSP write command data output pin
CAV.
17 | CQCK
DSP read/write command clock output pin
#8000 to #8100.
Reads at rise edge.
pa Nc. [O]Nouwed
Outputs slider drive after PWM and is used
in slider servo-mechanism.
19) Si
Data input pin from mode control IC
Serial front TO mechanism.
Shared with data signal to character
generation IC.
20} SO1
Seria] data output to mode control IC
Serial front TO mechanism.
Fixed to gain increase side, except for CAV.
SLD DRV
Slider control signal output pin
Cycle 910 msec., ternary control: H, L, Z.
21| SCK1
Clock for serial communication with mode
control IC
Becomes input mode, except during
communication with mode control IC.
Shared with clock signal to character
generation IC.
ep
Control focus balance
1: RFMAX; 0: TEMAX
SLD ERR
Changes only in test mode.
SLD POS
Fixed to "High" in normal mode.
Slider error signal input pin (A/D input port)
This is an A/D converted signal that is input
as slider servo control.
Pickup position detection switch input pin
(A/D input port)
Divides resistance among switches, reads
the value of the A/D input, and detects the
position.
= ae
TBALERR
Tracking balance error signal input pin.
(A/D input port)
Signal is A/D converted and is input as the
Tracking error zero cross signal input pin
tracking offset control.
This signal is a comparator tracking error
Tilt sensor output signal input pin.
signal.
ial
23; WRQ
Subcode Q read OK signal input pin
OK: h; NG:L
If sub-code Q data passed CRC check, this
pin becomes H.
Corresponds to SCOR of 2500.
24| RWC
DSP read/write command signal output pin
READ: L; WRITE:H
25| SHAKE
/|I/O! Handshake signal pin for data
communication with mode control IC
This pin has a bi-directional data line, and
each microcomputer transmits timing of
data transfer by switching outpul/input
mode.
26| XPBV
LD/CDV playback vertical synchronous
signal input pin
During vertical synchronization: L
This IC basically operates synchronizing
with this signal (fall edge). In CAV special
playback mode, jump timing is generated
using this signal as a reference.
Bi ehae
a GND ground pin for A/D conversion.
(A/D input port)
Slider motor is controlled during a track
Inputs signal of amplified output of tilt
count search by counting this signal.
sensor at 40 to 50 dB (0 to SV).
Signal is A/D converted and is input as the
tilt servo control. Controls the tilt motor
until this signal is 2.5V.
Focus servo lock signal input pin
Lock: L; unlock: H
Used to detect lock of focus servo-
mechanism.
Subcode synchronization coincidence
detection signal input pin
Match: H; other: L
Becomes "H" if SYNC (true frame sync)
detected from EFM signal and SYNC
(inserted frame sync) of counter match.
Latches output during 1 frame.
Tracking offset control signal output pin
Outputs tracking offset to PWM and uses it
as auto tracking offset. Cycle 910msec.,
ternary control: H, L, Z.
DACR digital filter PD2026 serial control
Latch signal output pin.
Latches at fall edge.
64
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