Communications Ic501 - Ic101 - Sony CDP-CX235 Training Manual

Communications IC501 – IC101
Communications from Syscon to Servo Control IC101 does not occur
until the disc is chucked on the spindle motor and ready to play (after the
loading motor finishes chucking the disc). This communications is shown
below:
P M 3 3 9 4 , F L U K E & P H I L I P S
ch1
ch2
1
ch3
2
T
3
C H 1 5 . 0 0 V =
C H 2 ! 5 . 0 0 V =
C H 3 ! 5 . 0 0 V = C H P M T B 1 . 0 0 m s - 3 . 2 4 d v c h 3 -
IC501 Activity at CD Play
Channel
1.
2.
3.
Time base = 1msec/div
Name CN502/pin
Data 18
CLK (Clock) 20
XLT (Latch) 19
13