ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hi everyone
After a long period when the MCP5500 has not been used, I recently put in some batteries to give my old BM5500 a spin. From the moment that the batteries were in place, the display has continued to flash. I always thought that a flashing display was a sign of low battery power so I carried out some tests with the following observations.
Even with a flashing display, the MCP5500 is able to talk to the Beomaster and all commands are accepted. The status of the Beomaster is also returned to the MCP.
I tried the same batteries in an MCP5000 where they worked OK and produced a stable display.
I opened up the MCP5500 and measured the voltage across the terminals at 5.8V, equivalent to 1.45V per cell. Since this might be on the low side for a 1.5V battery, I then connected an external 6V power supply which gave 6.3V at the terminals. Still, the display continues to flash.
Clock, date and store functions all work properly.
I have now concluded that there might be an electronic fault. Before I start to butcher this unit, has anyone any ideas on what could be wrong or what I might have overlooked.
Regards
Geoff