Vari Lite VL550 Service Manual

Also see for VL550: User manual

Contents

Vari Lite VL550 Service Manual Manual pdf 57 page image

MAINTENANCE : 202.96 83.001 0 0 2 5 Marc h 2 011 39Low Voltage Supply (LVS) ReplacementParts:69.3178.0121 1 EA POWER SUPPLY, 120W, 24VDCTools:• #2 Phillips ScrewdriverWARNING: Remove power from luminaire before performing maintenance.WARNING: With power applied, LIVE AC is present at heatsink. Do not touch when unitis powered.To remove and replace LVS:Step 1. Remove power from luminaire.Step 2. Remove yoke arm cover opposite display side by removing four 6-32x3/8" PTBscrews.Figure 17: LVS ReplacementStep 3. Disconnect the following wiring connections:a. 3-position connector (AC Input)b. 6-position MTA connector (DC Output)Step 4. As shown in Figure 17, remove four 6-32x3/8" PPZ, SEMS screws.Step 5. Remove LVS. Note fish paper (Wire Shield) behind LVS, save and reuse withreplacement LVS.Step 6. Replace by performing steps 2 through 5 in reverse order.LVS Power Supply6-32x3/8" PPZ (x4)Some components not shown for clarity.NOTE:Wire Shield (fish paper)