JVC RC-BX33SL User Manual

RC-BX33SL
Flow of functional operation until TOC read
Check Point
Check that the voltage at the pin
17 of CN901 is OV (a moment)?
Check that the voltage at the
pin1 of IC902 + side is + 5V?
Confirm that the Focus error
s-cuve signal at the pin16 of
IC902 is approx.2V p-p
Confirm that the signal from
TE waveform at TOC reading pin14 IC902 is 0V as a
accelerated pulse during
approx.400ms
Confirm the waveform of
the Tracking error signal
at the pin14 of IC902 (R926)
(See fig-1)
Confirm the eys-pattern
at the lead of TP1
Power Key
Slider turns
REST SW ON.
Automatic tuning
of TE offset
Laser ON
Detection of disc
Auto tuning of
Focus offset
Auto. measurement of
focus A-curve amplitude
Disc is rotated
Focus servo ON
(Tracking servo ON)
Auto. measurement of
Tracking error amplitude
Automatic tuning of
Tracking error
Automatic tuning of
Focus error balance
Automatic tuning of
Focus error gain
Automatic tuning of
Tracking error gain
TOC reading
Play a disc
Approx 3sec
pin 25 of
IC601(TE)
Approx
1.8V
Trackin
g
servo
Tracking
servo on
statues
Disc to be
braked to
stop
TOC reading
finishes
Disc status
to rotate
Auto
measurement
of TE amplitude
and auto tuning
of TE balance
500mV/div
2mS/div Fig.1
VREF
1-11

JVC RC-BX33SL Specifications

General

Brand	JVC
Model	RC-BX33SL
Category	CD Player
Language	English