Pelco 9770 HOW to Replace the Fuse in a Power Supply Module, How to Replace a Power Supply Fuse

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HOW TO REPLACE THE FUSE IN A POWER SUPPLY MODULE

The matrix bay is shipped from the factory configured for the correct input power. The power input panel, on the rear panel of the matrix bay, provides two separate power input receptacles, one for each power supply.

NOTE: The power input panel is not serviceable and should be removed or installed only by Pelco.

Each power input receptacle is equipped with a fuse assembly. In addition, each fuse assembly also provides a spare fuse. Refer to Figure 18. WARNING: Always replace blown fuses with fuses of the same rating. Failure to do so could result in serious damage to the unit.

1.Remove the power cord from the power input receptacle.

2.Using a small screwdriver, pry the fuse holder out of the socket. The complete fuse assembly comes out of the unit.

3.Replace the fuse using a 1.6 ASB fuse. If using the spare, be sure to replace the spare with one of the same rating.

4.Plug the power cord into the power input receptacle.

FUSE HOLDER

REPLACE

IF NECESSARY

SPARE FUSE

Figure 18. How to Replace a Power Supply Fuse

C1555M-G (12/07)

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Contents System C1555M-G 12/07 Contents List of Illustrations List of Tables Description Network Interface Unit ModelsController and CPU Components Matrix BayKeyboards Optional ComponentsCompatible Receivers CM9770-MXB InstallationUnpacking CM9700-CC1CM9770-MXB Mounting Baffle MountingMounting the CM9770-MXB on Top of the Mounting Baffle Mounting the CM9700-CC1 Opening the CM9770-MXB Front Cover Video INPUT/OUTPUT ConnectionsRemove a Video Card Installing Video Input Cards CM9770-VCCHow to Turn On the Pelco V-Sync Signal Insert or Replace a Video CardInstalling Monitor Output Cards CM9770-VMC Insert or Replace a Monitor CardRemove a Monitor Card Color Diagnostic Check Performing a Basic LED CheckTable A. LEDs Illuminated During a Basic Check Installing Rear Panel BNC Cards Insert or Replace a Rear Panel Video BNC Card CM9770-RPCRemove a Rear Panel Video BNC Card CM9770-RPC CM9770-RPC Termination Jumpers-Right Card Looping Video Out from the CM9770-MXB Looping VideoInsert or Replace a Rear Panel Monitor BNC Card CM9770-RPM Single Bay Video INPUT/OUTPUT CapacityMultiple Bays, Single Node Sample Sideframing System Using an Output Bay Sample Single-Node System with Downframing Sample Networked System Networked SystemPower Supply Module CM9700-MPS Install a Backup Power SupplyRemove a Backup Power Supply How to Replace a Power Supply Fuse HOW to Replace the Fuse in a Power Supply ModulePower Supply Alarm Speaker Switch HOW to Turn OFF the Audible Power Supply AlarmCM9700-CC1 Device Connections System Device ConnectionsCM9700-MGR PC Pin-Out Detail RS-422 COM Port Sercom Connections As necessary NIU connectionNot have to be in sequential ports MXB connections Table D. Data Connections-Single Node, Hot-Switched SystemSwitch Switch NIU connectionSample CM9770-MXB to CM9700-CC1 Connection Initialize the CC1 System Start-UpInitialize Keyboards Verify System OperationMonitor Color Adjustment Display the CM9770-MXB Software Version LevelDisplay a Blue Raster Screen Programming Your System Sample Wizard Getting Help Using CM9700-MGROperating Your System OperationHOW to Expand Your System AppendixSystem Architecture Sideframing Downframing Downframing with DFC Cards Downframe Cards DFC Card ISA Slot Number W1 IRQ Setting HOW to Install or Replace a CM9700-SER Card in the CC1How to Install a CM9700-SER Card Video Input Card CM9770-VCC Detail When LED Is OnMonitor Output Card CM9770-VMC Detail Color When LED is on or blinkingData Protection Test ModeColor System Port 1 RS-422 Baud RateNetworking Programming Satellite Devices Connecting Satellite DevicesCM9700-VPP Vertical Mount HOW to Install Video Patch Panels CM9700-VPPMounting the CM9770-MXB in an Open Rack Mounting the CM9770-MXB in AN Open RackInvoking the CM9700 Executable DOS Environment and Command ReferenceBoot Process AUTOEXEC.BAT and the Boot ProcessExample PATH=c\c\dosc\windows DOS CommandsFile Names and DOS Navigating the DOS Directory TreeChange to the 9700 directory Using the Wild Card CharacterManipulating Files in the DOS Environment Example\CD DOS ReferenceBy default, DOS searchers just the current directory Help commandFloppy of a disk formatted using this switch Backslash \ symbolVCC Card CF LED Is Illuminated and the AUX LED Is Blinking TroubleshootingProblems with the CC1 Symptom Possible Cause Corrective ActionFront Panel Label Color Monitor Display ProblemsLED Indicators on the Power Supply Module SwitchSpecifications Communication Differential Gain 51% Differential Phase DegreesSignal to Noise Ratio 71dBrms Input VoltageCM9780-MXB Regulatory NoticesProduct Warranty and Return Information ISO9001