Elo TouchSystems ET1587C - b. LED FLASHING

- 37 -
TROUBLE SHOOTING CHART
A. POWER SUPPLY CIRCUITS
a. POWER NO GOOD
Check UC3842
Yes
Power No Good
Test
C611 Voltage
?
Check
AC Input Circuit
No
Test
Output Voltage
?
Check
Q602,D612
?
Check
Circuit
?
Restart
PAD OR Trace
Shorting
No
Change Bad
Components
No
No
Check Power
Saving Circuit
Yes
Yes
Yes
Yes
OFF