Cisco Headend System Release 2.7 Maintenance Manual

Cisco

Chapter 5 Troubleshooting

124

4024836 Rev D

Symptom

Equivalent Possible Solution

DHCT blinks 8 times

quickly, pauses, repeats

(continuously)
[SARA only]

– – – – (four

dashes,

stuck in

Brick mode)

1

Follow these steps:

a

Confirm that the CableCARD module

MAC address matches the billing

MAC address and that the

CableCARD module is authorized for

service.

b

Ask the DNCS operator to correct any

mis-match and send a hit to the

DHCT and CableCARD module.

2

See PowerKEY/EA Issues (on page 131)

for more information.

3

If these steps do not work, return the

DHCT to us for repair. Mark the repair

tag with one of the following:
–

S2. Stays in Brick Mode (– – – –)

–

S3. Invalid Sub Expire Date

–

S1. No EMMs/ISE/EA

Single-LED DHCT:

POWER LED blinks

once every half-second

(continuously)
Triple-LED DHCT:

LEDs blink twice, rotate

left, repeats

(continously)

h.xxx -

DHCT will

not

download,

stays in

hunt mode

1

Connect the DHCT to a known good RF

cable.

2

Power cycle the DHCT.

3

Force a download by following these

steps:

a

Unplug the DHCT power cord from

the power receptacle.

b

Plug the DHCT power cord into the

power receptacle while pressing and

holding the POWER button until

either the POWER LED (on single-

LED DHCTs) or the REMOTE LED

(on triple-LED DHCTs) begins

blinking.

c

Press the POWER button again so the

LED blinks faster. In a few seconds,

the DHCT will begin downloading

code.

4

Have the DNCS operator confirm that the

hardware type on the DHCT label is

associated with the correct ROM version

file on the DNCS. Compare to a known

good DHCT of the same type.

5

If these steps do not work, return the

DHCT to us for repair. Mark the repair

tag with D6. DHCT in Hunt Mode

(hXXX).