PAMS Technical Documentation
Troubleshooting and Tuning Instructions
NHM-7
,VVXH
1RNLD&RUSRUDWLRQ
3DJH
Display fault 3
Display
faults 3
Does the display start ?
Try change UI module
Is it working now ?
No
Retest
Yes
Measure
VDD (2.78V) and
VDDI (1.8V).
Is it OK?
Check C303
and lines.
If OK,
Change UEM
No
Measure
VOUT voltage.
Is it ~8.1V?
Yes
Check C302,
X300 and lines.
No
Measure
XRES, XCS.
Is it ~1.8 V?
Yes
Check X300
and lines.
If OK, change
UPP
No
END
Yes
Yes
Check X300
No