Vector 9050 Fault Troubleshooting
Contents
1. the chassis assembly out If it does not slide out easily try to loosen the screws more Also you may try to gently wiggle the back panel up and down2. y77Ransburg SERVICE INSTRUCTION SI 06 03 SER VICE INSTRUCTION INST ALLING A REPLACEMENT 79390 XX PC BOARD IN A 79513 XXX 9050 CASCADE CONTROL UNIT Required Tool List 2 Phillips head screwdriver e Flathead screwdriver e Adjustable wrench 1 Determine which software version is currently installed in the control unit a Cycle the power by turning it off then on b Once the power supply is back on note the version number in the right hand LED display the uA display This number is displayed for only 2 3 seconds after cycling the power If the version number is 2 66 or greater do not replace the PC board Return the replacement PC board to your distributor lftheversionnumberislessthan 2 66 continueto install the replacement PC board per the instructions on this service instruction 2 TURN OFF THE CONTROL UNIT AND UNPLUG THE AC LINE CORD 3 Unplug or remove everything from the back of the control unit 4 Loosen the four 4 screws on the front face of the control unit using a 2 Phillips head screwdriver 1 TURN OFF THE CONTROL UNIT AND UNPLUG THE AC LINE CORD NOTE gt Do not remove the screws entirely this will make the reassembly process easier Figure 1 Front Face of Control Unit With Screw Locations Noted 5 Push on the back panel of the control unit chassis asshownin Figure2 allowingthechassis assembly to slide out the front of the control unit case NOTE gt Do not force
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