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Preliminary Information 42PQ30
MAIN PWB
Main PWB Crystal X1 and X501 Check
Main PWB Crystal X1 and X501 Check
Crystal Location
X1 (1.5V DC) / (2.4V p/p)
12Mhz
X501 (1.5V DC) / (110mV p/p)
25Mhz
Runs all the time
Runs only at first turn on when
LD501 is illuminated.
LD501
X1 X501
