|
|
ECN-0151 |
| Title |
Boris3 Real Time Clock Modification |
| Equipment |
Boris 3 Motherboards used in:-
Azure, Pearl 2000/2004, Sapphire 2000 |
| Author |
Alwyn Fernandes |
| Drawing
No |
n/a |
| Date |
27th February 2003
|
| Reason
for ECN |
The original RTC chip (DS1202) used on Boris motherboards has become
obsolete.
It been superseded by a pin compatible device (DS1302).
As a result, the RTC clock sometimes gets corrupted on the Boris3
motherboard.
The solution is to fit A 470pF between pins 4 & 5 of the DS1302 chip (U22) |
| Special
Parts Required |
470pF capacitor (06-03-0016)
|
| Special
Tools Required |
None |
|
Work
Required |
|
Fit the 470pF
capacitor as shown above
|
|
