DOCUMENT 1025
REV. B
Instruction Manual
858 LED Series
Sizes 1, 2, 3, 4 and 5
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| CAUTION: |
CAUTION |
| Do not over tighten hex nut on stud retaining bridge recttifier. |
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| max. (See F igure 18) Also, remover carriers from thermmal pad |
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| adhesive surfaces before installing. |
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WARNING:
IMPORTANT When tightening cover screws, do not use power drivers as you may exceed the maximum torque of 75
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| DANGER: |
DANGER |
| When replaacing parts inside the circuit box or sign housiing, lock out |
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| series circuiit power at its source. |
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10.2Problem Solving Guide
| PROBLEM |
| POSSIBLE CAUSE | CORRECTIVVE | ACTION |
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| (P.1) Sign will | No inpput current. (LEDs on Power | Measure input cuurrent |
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| not light | Supplyy board not lit) | according to Secctions 10.3 and |
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| 10.4. If the measured input |
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| current is not within spec (see |
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| Tables |
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| isolation transformer, and |
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| primary power connections. |
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| 7 |
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