Honeywell Vocollect, Справочник по аппаратуре

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| Troubleshooting Equipment Problems | 264
The following steps will need qualified Honeywell technical support to determine the specific malfunction of a non-
working VMT:
Gain access to the power supply used by the VMT (this is likely mounted inside the vehicle). Remove the four screws
that attach the lid of the power supply to expose the input and output wiring as illustrated in the diagram below.
• Test the input terminals to determine if voltage is being supplied and matches that of the vehicle power system.
• If the voltage supplied does not match that of the vehicle power system, professional attention is needed to
determine why the vehicle power system is not providing the correct voltage.
• If no voltage is being supplied, check the fuses on the input cable, replace if they are blown. If the fuses
immediately blow after replacement, determine if the input cable to the VMT power supply has a short circuit.
If there is no short then it is likely there is a problem with the VMT power supply.
• If no voltage is being supplied and the fuses are not blown, check the integrity of the input cable for a break.
If there is a break, replace the cable. If not, there is likely a problem with the vehicle power system that needs
professional attention.
• If input voltage is being supplied to the power supply, check the output voltage.
• If there is input voltage but no output voltage or the output voltage does not match 13.2V DC then the power
supply is likely in need of replacement.
• If there is output voltage in the 13.2V DC range then the problem is likely in the cable to the Battery Adapter
or the Battery Adapter itself. Try a known, working Battery Adapter. If that does not work then it is likely that
the cable between the power supply and Battery Adapter is in need of replacement.
• A Battery Adapter may be tested by checking the output of the adapter. Note that to rule out problems with
the power supply or cable to the Battery Adapter, a known, working Battery Adapter should be tested first
before testing a suspect Battery Adapter. The two outermost points of a working Battery Adapter should read
approximately 3.9-4.2V DC as illustrated in the figure below.
Troubleshooting Problems Indicated by LED
Vocollect Talkman devices, chargers and the SRX headset and its charger have LEDs that indicate the state of the
equipment. These LEDs may be on, off or blink. In some cases an LED will blink, alternating between two colors.
If the LEDs indicate that there is a problem, follow the troubleshooting steps to solve the problem.