Pelco SD5 User Manual download pdf (Page 51)

Pelco Manual C1456M-D (10/98) 51

6.0 TROUBLESHOOTING

Symptom: Unit does not operate.

1. Make sure your controller is trying to communicate with the unit and not an-

other camera.

2. Turn off power.

3. Remove the lower dome:

In-Ceiling Models - Insert the flat blade of a screwdriver into one of the slots on

the trim ring and twist the screwdriver to pop loose the trim ring and lower dome.

Pendant Models - Remove the two screws that hold the trim ring to the back

box. Insert the flat blade of a screwdriver into the slots on the trim ring and

twist the screwdriver to free the lower dome from the back box.

4. Remove the dome drive: Push in on the green drive eject tab on the side of the

dome drive and gently rock the dome drive to release the latch. When the

green latch releases, pull the dome down.

5. Turn on power.

6. If the red power LED on the door of the interconnect circuit board in the back

box does not light, turn off power.

a. Open the door to the interconnect circuit board and check the fuse.

Refer to Figure 9 for the location of the fuse. If the fuse is bad, replace

it. To order a replacement fuse from Pelco, specify the part number

FUS1.6-5X20FAST. This is a 1.6-ampere fuse, 5 x 20 mm, fast blow.

b. If the fuse is good, turn on power and use a voltmeter to check if 24 VAC

is getting to the power connector on the interconnect circuit board. Refer

to Figure 9 for the location of the AC power connector.

c. If there is 24 VAC to the power connector, turn off power and return the

back box electronic assembly to the factory for repair. Refer to Section

6.1, BACK BOX ELECTRONIC ASSEMBLY REMOVAL.

d. If there is no voltage at the power connector, check your power supply.

7. If the red power LED is lit, turn off power.

a. Open the door to the interconnect circuit board and check that all con-

nectors are fully seated.

b. Make sure the wiring is correct between the unit and controller.

c. Close the door. Check the switch settings on the dome drive (refer to

Tables C, D, and E) and reinstall the dome drive.

d. Turn on power. If the unit still does not operate, turn off power and re-

place the dome drive with a unit that is good, if you have a spare. Check

the switch settings on the substitute dome drive before installing it. If you

do not have a spare, return the dome drive to the factory. Also return the

back box electronic assembly. Refer to Section 6.1. BACK BOX ELEC-

TRONIC ASSEMBLY REMOVAL.

e. If you substituted a dome drive, turn on power. If the unit operates, the

original dome drive is bad. Return it to the factory. If the unit still does not

operate, then the interconnect board is bad. Return the back box elec-

tronic assembly to the factory; refer to Section 6.1, BACK BOX ELEC-

TRONIC ASSEMBLY REMOVAL.

NOTE:

The dome drive contains no

user-serviceable parts. If there is a

problem with your dome drive, it

must be returned to Pelco as a com-

plete unit for servicing.

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Pelco SD5 User Manual Page 51

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