How to Repair No display Clock generator circuit

Sumer August 01, 2014

How to Repair Motherboard (No Display)

Many reason of no display in the motherboard.
=>First check Basic Faults :
=>Check Connectivity CPU to monitor check VGA cable

Check Ram (random Access memory )
Micro processor Faulty check CPU
Check SMPS for bad supply

=>If above method and parts are ok Then Check Motherboard
>Check Cpu Core volt come, if not coming cpu cove volts then check VRM Circuit
>Check Clock Signal is coming, if clock singal not coming then check Clock Generator Circuit

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 .
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
Soon.......