User Guide

PAMS
Technical Documentation
RAE-3
8. Troubleshooting
Page 8 – 32
Issue 1 06/01
2.9.2 CMT display backlight blinking 2 times in a loop
CMT display backlight blinking 2 times in a loop (”Flash fault”):
Manufacturer and device id read from FLASH 1 (D352) or FLASH 2 (D353) or
from both fails.
ID read from FLASH1 or
Flash the device
D352 ID read
fails during flashing
D353 ID read
fails during flashing
Check:
negative pulses
on J339
(1.8V)
OK?
Check:
negative pulses
on J340
(1.8v)
OK?
Problem in
D300 (MCU)
Problem in
D300 (MCU)
Change
D352
Change
D353
NO
YES
NO
YES
FLASH2 fails
Figure 20.
See FLASH signal pictures later.