Daewoo DVDP485, Руководство по обслуживанию

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CT908
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE CTK CONFIDENTIAL, NO DISCLOSURE
The above information is the exclusive intellectual property of Cheertek Inc. and shall not be disclosed, distributed or reproduced without permission from Cheertek Inc.
Copyright (C) 2003 Cheertek Inc. All Rights Reserved.
4.6 RF/Servo/Motor Drive Interface Signals
Pin name Type Description DVD/CD input
alternative
RFVT AI RF ADC top reference voltage input (1.4V)
RFIN AI RF signal input
AVD33S AP 3.3v analog power supply for servo ADC/DAC
LE AI Lens error input
FE AI Focus error input
TE AI Tracking error input
RFENV AI RF envelope input
FS AI Focus sum input
SRVM AI ADC/DAC center reference voltage input (1.65V)
FODAC AO Focus control DAC output
TRDAC AO Tracking control DAC output
AVSSS AG Analog ground for servo ADC/DAC
SLPWM/SMA I/O Sledge control PWM output/Stepping motor PWM
output A; SLPWM is default
D_SYNC
SPDPWM O Spindle PWM control output
GPB[5:0] I/O General purpose IO bus B, default in input state.
Specifically, this bus is used as following definition:
GPB0: TRAYCLOSE, tray-close control output
GPB1: TRAYIN, tray in inside position input
GPB2: TRAYOUT, tray in outside position input
GPB3: SLHOME, sledge motor in home position input
GPB4: MTRSTBY, motor driver enable output
GPB5: LDON, RF-Amp enable output
DVD[5:0]
SPDFG/GPB6 I/O Spindle FG signal input/General purpose IO bus B bit 6
that could be specifically used as MOCTL, spindle
reverse rotation indication signal input; SPDFG by
default
DVD[6]