If your tuner is REV: J, K
try fixing Capacitor 680uF 10V as shown in the attached image.
540uF 10v also works.
Hi
I have a dm800se clone with bcm4505 tuner rev:G
the system recognize the tuner,
on satfinder I have very good signal strength but when I scan
for chanells I can not find nothing.
100% completed, 0 chanels found
Can you help me please?
by the way this box with healthy 401A tuner works fine with HD signals ?
I'm also facing same problems with DM 800HD PVR(original)(401A REV.K) are discussed in above posts and much impressed by DM300's replies/support...this box reached to me in faulty condition and even I dont know the tuner supports HD channels or not..if I try to repair it accoding to instructions ..can it be able to access HD signals?
by the way this box with healthy 401A tuner works fine with HD signals ?
thanks for extra feedback :thum:Thanks for your kind words my friend.
I am glad that you got the tuner working.
As for re installing the image, it is a matter of what you prefer.
Normally we have a latest image in the internal flash and install various images (to test) on extenal flash (USB or HD) using the multiboot feature.
If everything is working fine, and you are happy with image you are using, I would leave thing as they are and enjoy the box.
Later on you can start experminting.
Have fun.
by the way if (though there are least chances)I wanted to change current tuner with M tuner ,an alteration will be needed on mainboard to reduce compatibility issue ?
if you have tuner empty, nothing.buy a tuner Alps M 801A ..
Your 401A and certainly ... have problems with HD