Radio Shack SYSTEM 440 owner manual Troubleshooting, Data

Models: SYSTEM 440

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TROUBLESHOOTING

Having a problem? Here are some of the most common problems and how to resolve them.

Problem

Solution

 

 

 

 

 

Blank screen

Battery installation — Replace or rein-

 

stall the battery, as described in “Installing

 

the Battery” on Page 10.

 

 

AC power — Plug in the adapter. If the

 

adapter is plugged into an outlet that is

 

controlled by a switch, turn on the switch.

 

Contrast control — Adjust the contrast

 

as described in “Adjusting the Display

 

Contrast” on Page 12.

 

 

 

You have an incoming

• You picked up a telephone that is not

call, but do not receive

connected to your module.

 

any Caller ID informa-

• No data was sent by the phone com-

tion.

pany with the call (-NO

DATA

 

 

SENT- appears on the display). This

 

is not a malfunction.

 

 

 

 

 

 

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Radio Shack SYSTEM 440 owner manual Troubleshooting, Data