I know this is a bit off group but someone might know .I have a client that
has brought in a FT857 
Which had a burned out cap in the head unit c4029 and damaged q4002 
Reg .I have replaced the cap and 
I have a replacement reg supplying 5v to the micro chip and the 8v rail 
Is ok but I have no operation out of the head unit .All I get is a 
Blank screen with no operation from anything .I have the service manual 
And are checking different components.Can anyone suggest what might be 
Wrong or where to check .thanks Ian


 
Thank You,
Ian Wells,
Kerinvale Comaudio,
361 Camboon Road.Biloela.4715
Phone 0749922574 or 0409159932
www.kerinvalecomaudio.com.au
 
 
 
 

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