S4 Sedan L5-2226cc 2.22L DOHC Turbo (AAN) (1992)
Cellular Phone: Component Tests and General Diagnostics
Roam Characteristics, Checking
The roam characteristics of the phone can be changed to allow the type of service provided (non-wireline A, or wireline b) to be programmed and in
what preference.
Complaints of the "NoSvc" light or "Roam" light illuminating constantly can be the result of incorrect or undesirable roam characteristics.
Check roam characteristics as follows:
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Switch telephone ON.
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Press "Rcl" and "*" buttons.
Current roam selection displayed.
NOTE: Five roam selections are available: standard (Ab or bA), inverted (bA or Ab), home, non-wire line only, and wire line only.
Selection
Display shows
Standard (prefer home-type systems):
Prefer A systems, accept B systems, or
Std Ab
Prefer B systems, accept A systems
Std bA
Inverted (prefer non-home type systems):
Prefer A systems, accept B systems, or
SCAN Ab
Prefer B systems, accept A systems
SCAN bA
Home only:
Do not allow roaming
HOME
Non-wireline only:
Accept A systems ONLY
SCAN A
Wireline only:
Accept B systems ONLY
SCAN b
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Press "*" button repeatedly to advance through the selections.
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Press "Sto" button to enter desired choice (standard).
NOTE: The best telephone performance is usually obtained with the standard roam selection setting. Set roam selection to standard, unless otherwise
preferred by customer