Aiwa LCX-K277 User Manual download pdf (Page 25)

Output terminal for focus error amplifier. Internally connected to window comparator

input for bias condition.

Input terminal for focus error.

Capacitor connection terminal for time constant used when there is defect.

This pin is connected to GND via capacitor when high frequency gain of the focus

servo is attenuated.

This is a pin where the time constant is externally connected to raise the low frequency

gain of the focus servo.

Focus drive output.

Focus amplifier inverted input pin.

This is a pin where the time constant is externally connected to generate the focus

search waveform.

This is a pin where the selection time constant is externally connected to set the

tracking servo the high frequency gain.

This is a pin where the selection time constant is externally connected to set the

tracking high frequency gain.

Pin for setting peak of the phase compensator of the focus tracking.

Tracking amplifier inverted input pin.

Tracking drive output.

Sled amplifier non-inverted input pin.

Sled amplifier inverted input pin.

Sled drive output.

The current which determines height of the focus search, track jump and sled kick is

input with external resistance connected.

Power supply.

“L” setting starts sled disorder-prevention circuit. (Not pull-up resistance)

Clock input for serial data transfer from CPU. (No pull-up resistance)

Latch input from CPU. (No pull-up resistance)

Serial data input from CPU. (No pull-up resistance)

Reset system at “L” setting. (No pull-up resistance)

Signal output for track number counting.

FZC, DFCT1, TZC, BALH, TGH, FOH, or ATSC is output depending on the

command from CPU.

DFCT2, MIRR, BALL, TGL or FOL is output depending on the command from CPU.

Output terminal for focus OK comparator.

Input pin where the DEFECT bottom hold output is capacitance coupled.

DEFECT bottom-hold output terminal. Internally connected to interruption comparator

input.

Connection terminal for DEFECT bottom-hold capacitor.

Connection terminal for MIRR hold-capacitor.

Anti-reverse input terminal for MIRR comparator.

FEO

FEI

FDFCT

FGD

FLB

FE_O

FEM

SRCH

TGU

TG2

FSET

TA_M

TA_O

SL_P

SL_M

SL_O

ISET

Vcc

LOCK

CLK

XLT

DATA

XRST

C_OUT

SENS1

SENS2

FOK

CC2

CC1

IC, CXA1992AR

Pin No. Pin Name I/O Description

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 43 44

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Aiwa LCX-K277 User Manual Page 25

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