Hello, hopefully someone can help me here. I do not have the service manual
for a Pioneer DEH-P7400MP thus I can not look up a particular part # for
this stereo. I am in need of the Pioneer part # and "value" of Q803 located
on the top front left side of the main board. Or if anyone can get a copy of
the service manual that may work as well. Thanks in advance and please email
me at if you can help.