Static During Calls And/Or Dropped Calls - Motorola V60 Series Manual

No - Reinstall original Y harness and substitute a known good coil cord. Go to STEP 16.
15. Power up phone and listen for tones when handset keys are pressed.
Tones heard at speaker?
Yes - Defective coil cord. END
No - Reinstall original coil cord and substitute a known good PSE. Go to STEP 17.
16. Place a hands-free call (coil cord plugged in) with handset in cradle.
Can both parties be heard?
Yes - Original PSE faulty. Perform "Initial Installation" checks. END
No - Reinstall original PSE. Call Mercedes-Benz Regional Technical Support for further
assistance. END
17. Check for tight/good connections of the Y harness and PSE.
Place a hands-free call. Can you hear the land party?
Yes - Loose connections caused problem. END No - Go
to STEP 19.
18. Substitute a known good PSE. Place a hands-free call.
Can you hear the land party?
Yes - Original PSE faulty. Perform "Initial Installation" checks. END
No - Reinstall original PSE. Call technical support number for further assistance. END

4.4.5 Static During Calls And/Or Dropped Calls

These types of problems usually require detailed input from the customer. The questions asked of
the customer will greatly assist in obtaining a correct conclusion. MOST OF THE PROBLEMS
IN THIS AREA ARE RELATED TO POOR COVERAGE BY THE SYSTEM PROVIDER.
Most complaints relating to the performance of the cellular telephone are not due to a malfunction
of the Telephone System or the Cellular Network itself. It is more likely that the cause lies in the
characteristics inherent to wireless communications. Radio signals both transmitted and received
by the cellular telephone work best when there is an unobstructed path between the phone's
antenna and the network's "base site" antennas. Because of the reflecting characteristics of the
cellular phone radio signal, directed and reflected signals may reach the antenna at the same time
("multi-path"). They cancel each other out, creating small "islands" where audio "nulls" occurs.
As the car moves through these spots, the caller will hear a momentary flutter. This same
characteristic causes "ghost" images in television when an airplane flies over. Multi-path can also
cause a "cross-talk" phenomenon, where the driver may temporarily hear another cellular
conversation.
Common symptoms, which may occur in a cellular conversation, are:
Static, Lack of coverage or "multi-path" condition.
Mercedes Benz Telephone Manual v4.6
4.0 Troubleshooting Section
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Date: 09/01/2004