Re: Marantz NR1501 HDMI Board CHK CPU Error

I've been working on two NR1501's for a few days now, with different defects.
One had similar problems with digital signals. Analog signals only worked with Source Direct enabled.
I discovered that when heating up the HDMI board with a hair dryer digital HDMI and analog normal signals are working again. Cooling one part of the HDMI PCB, the HDMI audio stopped and eventually all HDMI signal went dead.

On both receivers I've discovered pretty strange behavior with a 1.8v regulator on the HDMI board. Its IC1606 (in...