Flow of functional operation until TOC read
RESET a CD LSI
Set A servo coefficient
Is focus search done properly ?
Does SLED move to INNER
Detection of disk
Disc is Rotated
Limit SWITCH on
Automatic adjusting of focus,
tracking servo
Power ON
Play Key
Confirm that the signal from pin59,
60 of IC327 is as a accelerated
pulse during approximations.
CD-DA, VCD, Detection.
TOC reading
Play a disc
CD-DA
Check Point
Confirm that the voltage at the pin38
of IC327 is "L" "H".
Confirm that the voltage at the pin63
of IC327 is "H" "L" "H".
Confirm that the signal at the pin39
(SDA), 40(SCLK), 41(RAB) is output.
Set A decoder register
0 F
Confirm that the signal at the pin39
(SDA), 40(SCLK), 42(SILD) is output.
Check IC327 #16resonator signal
(16.93MHz)
Check IC327 #56(SL)
Check IC073-2 #9
#12
Confirm that the voltage at the pin63
of IC327 is "H" "L" "H".
Confirm that the voltage swing at
the pin #55 of IC327 and the pin
13, pin16.
With servo coefficient.
Communication with VCD micom
MI1.
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