Nokia 920C - Page 16

5 Troubleshooting
5-2 720C/920C
5-1-2 DPMS Failure
Check signal source
H/V sync video level.
Make no H/V sync (power off mode)
LED blinks
Check IC201 Pin 39.
Yes
No
+12 V line off
Check IC201 Pin 9.
Yes
No
Q632 Base driving voltage exists?
Check IC201 Pin 10.
Check and replace Q632.
Yes
No
Done