Samsung HS40 - Page 227

7 – 8 HS40 Service Manual
• Noise occurs in the image format.
Is there any
peripheral likely to
affect the system?
NO
Connect the Probe to another port
and retest it.
Passed all tests?
Noise occurs in images.
Check if the Probe
failed.
Use a diff erent power source
from the noise source or
remove it.
Y ES
Is any noise visible?
PSA board Check
Test the analog part in the
BIST.
Y ES
Y ES
NO
Check the BIST
report.