7 - 6 HS70A Service Manual
Image
2D Mode: There is No IMAGE ECHO or IMAGE FORMAT
Contact between the probe and the product may be poor, or the Main Board or DDM may have
failed.
1. Check whether the contact between the probe and the system is poor.
2. Check the probe for vibrating sound. If you can hear the sound, it is likely that the DDM
has failed.
3. If the methods in "1" and "2" fail to solve the problem, it is likely that the Main Board has
failed.
Lines (Noise) Appear in 2D Mode Image
Power noise and/or Main Board failure may have occurred.
1. Check whether the product is sharing its power outlet with another appliance.
Sharing a power outlet with a motor or other appliance that consumes large amount of
power may cause noise.
2. Check whether the symptom persists when you plug the system into an outlet in a
different room.
If the noise occurs, it is caused by power noise.
3. If the methods in "1" and "2" fail to solve the problem, it is likely that the Main Board has
failed.
M, C, PW, CW Mode Trouble
It is likely that Main Board has failed.