Flow Of Functional Operation - JVC CA-MXS6MDR Service Manual

Flow of functional operation until TOC read (MD section)
Power ON
MD play Key
Slider turns REST
switch ON
Mechanism operation ON
Laser ON
Disc detection
Automatic tuning of
Focus S-curve amplitude
Disc is rotated
Focus servo ON
(Tracking servo ON)
Automatic tuning of
Focus error gain
Automatic tuning of
Tracking error gain
TOC reading
Play a disc
Check point
Confirm that the voltage
at the pin 9 of CN408 are
0V.
Confirm that the voltage
at the pin 50 of IC500 are 4V.
Confirm that the Focus error
S-curve signal at the pin 34 of
IC310 is approx.2Vp-p.
It is confirmed that pin 2 of CN408
become 0V from VREF as an acceleration
pulse between about 400ms.
Confirm that the eye-pattern
at the pin38 of IC310.
CA-MXS6MDR
SP-MXS6MD
1-37