Installation guide

Chapter 4

Troubleshooting

This section provides basic solutions for problems that installers might encounter. For additional

assistance, please contact Motorola Technical Support for a complete copy of the latest Motorola

eMTA Troubleshooting Guide.

Description of the Problem Solution

POWER

The LEDs on the power supply module and/or

the Blade(s) are not on.

• Verify that the HFC Power is properly con-

nected. (See Connecting the AC HFC Power

Source.) For more information, see “Con-

necting the AC HFC Power Source” on

page 23. Verify that F1 and F2 are installed

and not open.

• Verify that the Facility Power is properly con-

nected. For more information, see “Con-

necting the AC Facility Power Source

(Hardwire)” on page 18. Verify that F1 and

F2 are installed and not open.

• Verify that the UPS power is properly con-

nected. For more information, see “Con-

necting the UPS DC Power Source” on

page 25. Verify that F3 is installed and not

open.

The LEDs indicate abnormal on the power sup-

ply module and/or the blade(s):

• If the Power Supply AC LED is on, but the

DC LED is off, or

• The Blade Power indicator is off...

• Replace the power supply module.

• Replace the blade after verifying that the

power supply is working properly or that the

UPS input is working.

• Blades cannot find the DS.

• Blades cannot complete US power ranging.

• Blades do not come on-line.

• Verify the connection and the RF input level

to the M-EMTA.

• Verify that the upstream plant is working

properly.

• Verify the provisioning server is working

properly.