How to Motherboard No Display Repair

No display repair Clock generator circuit

Many reason of no display in the motherboard.
First check Basic Faults :

1. Check Connectivity CPU to monitor check VGA cable
2. Check Ram (random Access memory )
3. Micro processor Faulty check CPU
4. 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.......

Check memory controller for no display

Check PIIX fo Nodisplay

Check Memory slot for no display
Check Any signal path shorting for no display