Flow Of Functional Operation Until Toc Read - JVC MX-G500 Service Manual

Flow of functional operation until TOC read

Power ON
Tracking error waveform at TOC reading
Pin 34 of
Approx.3.7sec
KB9226
(IC101)
Approx
0.4V
2.50V
Disc states
to rotate
Play Key
RESET a CD LSI
SET Default value of
TE gain, TE balance
Automatic adjusting of
Automatic adjusting of
Automatic adjusting of
Automatic adjusting of
Automatic adjusting of
LIMIT SW ON
focus bias
FE offset
TE offset
LASER power ON
Detection of disk
Disc is rotated
TE balance
TE gain
TOC reading
Play a disc
MX-G500
Check Point
Confirm that the voltage at the pin17
of KB9226(IC101) is "L" "H".
Confirm that the voltage at the pin33
of KB9226(IC101) is "H"
Confirm that the voltage at the
pin37 of KB9226(IC101) is 3.5V.
Confirm that the signal from pin24
of KB9226(IC101) is 3.5V as a
accelerated pulse during
approx.1.96s.
Confirm the waveform of
the Tracking error signal
at the pin 34 of KB9226(IC101).
Confirm the eye-pattern
at the pin2 of KB9226(IC101).
"L" "H".
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