Shop OBEX P1 Docs P2 Docs Learn Events
Hardware Troubleshooting Sick BS1-IC Rev A — Parallax Forums

Hardware Troubleshooting Sick BS1-IC Rev A

ArchiverArchiver Posts: 46,084
edited 2001-10-09 03:06 in General Discussion
Does anyone know the hardware troubleshooting sequence or
troubleshooting tree for a BS1-IC Rev A (cira 1994?)(PIC16C56) used
with a 93LC56????

Visual exam is unrevealing. Nothing unusual.

Voltage regulator is out.

Using a 5 Volt power source applied to BS1, pin 5 (VDD), I'm getting
oscillations on the PIC, pin 18 (.2VPP) and pin 17 (.6VPP).

When I ground the reset on the BS1, pin 6, I read 0.81A on my power
supply.

From here I don't know where to go. Anyone have any ideas??

Sure would save me the trouble of pouring thru old data sheets.

Don
Sign In or Register to comment.