Clock Section in Desktop Motherboard

Clock Section in Desktop Motherboard 

without Clock any controller motherboard can not work. Even microprocessor clock is required to work. it is provide clock pulses to many sections.

IDENTIFICATION OF CLOCK GENERATOR SECTION

In this section has a IC and also has a crystal 14.318MHz.

How to Check Clock Generator Circuit

·         First check supply volt to clock generator ic , if supply not coming then check mosfet capacitor fuse-able resistance for shorting and open 3.3v.

·         if supply ok then check 1.0v to 1.5v to Crystal both pin (both pin not same volt) 

·         check pf connected to between crystal to clock ic 

=>Hint: if reset not coming from cpu its means clock signal not generate .
desolder clock ic or (Replace IC Same ) and component  connect to clock ic path 
Replace crystal 14.318Mhz and its connected pf (capacitor )
Display are come if clock circuit is ok if display not coming 
and other circuit responsible for no display  check other circuit