System Clock Of Mpeg Ic - LG GoldStar DVD5185 Service Manual

23. System clock of MPEG IC

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
138
X501
C543
A diagram for a colck input of IC501
139
pin139
C541
pin138
3-13
IC501
IC501
MPEG CLOCK