3-13
138
139
IC501
C541
C543
X501
The waveform and the block diagram as below show a clock input and output between IC501 and X501.
Clocks generated in X501 is output and input into pin138 and pin139 of IC501.
The clock frequency is 13.5MHz.
If this clock is abnormal or does not appear, replace the X-tal or MPEG IC
IC501
pin139
IC501
pin138
A diagram for a colck input of IC501
MPEG CLOCK
23. System clock of MPEG IC
