Digital Equipment FR-902AA-A3, Service Maintenance Manual

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Digital STARION 400i - 900i PC Preface
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Preface
The Digital Starion 400i/500i/600i/700i/800i/900i PC Family Service Maintenance Manual is a
troubleshooting guide that can be used for reference when servicing the Starion 400i - 900i line of PC’s.
Digital Equipment Corporation reserves the right to make changes to the Digital Starion 400i - 900i series
without notice. Accordingly, the diagrams and procedures in this document may not apply to the
computer(s) you are servicing since many of the diagnostic tests are designed to test more than one
product.
CAUTION
Digital recommends that only A+ certified engineers attempt to repair this equipment.
All troubleshooting and repair procedures are detailed to support subassembly/module
level exchange. Because of the complexity of the indivual boards and subassemblies, no
one should attempt to make repairs at component level or to make modifications to any
printed wiring board. Improper repairs can create a safety hazard.
Any indications of component replacement or printed wiring board modifications may
void warranty or exchange allowances.