de92 0 Posted March 14, 2010 need help finding any circut dirgrams on this model Share this post Link to post Share on other sites
scorpion 0 Posted March 14, 2010 There are no circuit diagrams. You can make your own buy getting the chip manufacture PDF, and connecting the dots. If you DVR is dead start with the oscillators, and make sure they are working. If they are working then you should have a working board. The boards are not worth repairing as it is cheaper to buy another DVR. The replacement boards cost $150.00 to $200.00 for a 4 channel DVR. Share this post Link to post Share on other sites