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Section 4 — Maintenance
Servicing Circuit Boards and Modules
All of the video processing and control processing in the system takes place on
circuit modules in the Signal Processor Frame and Control Panel.
CAUTION
When removing circuit modules place them on a flat non-conductive surface.
Failure to follow this precaution can result in loss of SRAM data due to battery
discharge or component damage due to electro-static discharge.
CAUTION
If a circuit module in the Signal Processor Frame is removed or reinstalled while
the power is on, it is unlikely that permanent damage will occur to the module or
system. Microprocessor messages, however, may become scrambled. This may
result in system errors and improper operation. If these problems occur, the only
sure way to restore proper operation is to turn power to the frame OFF and then
back ON again. The power-up sequence will re-synchronize the microprocessors.
Repairing Circuit Modules
Model 4000 circuit modules are not designed to be repaired in the field unless a
repair is authorized by Customer Service, usually in the form of a Field
Modification Note. Failed modules should be replaced.
Surface mount technology and multi-layer printed circuit manufacturing
techniques have been used in many of the circuit modules. Specialized equipment
and training are required to properly repair these modules.
CAUTION
Do not attempt component-level field repair on these circuit modules unless
directed to do so. Use of improper tools or equipment to repair surface mount
components and multi-layer circuit modules could result in potentially expensive
damage to your system.
WARNING
When installing or removing control cables for installation or
troubleshooting purposes, follow recommended anti-static procedures at all
times. All connectors are subject to static discharge damage. Use the same
precautions as when handling static sensitive circuit boards.
Summary of Contents for Grass Valley 4000
Page 3: ...iii Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 4: ...iv Tektronix Grass Valley Products P O Box 1114 Grass Valley CA 95945 916 478 3800 ...
Page 34: ...1 20 Section 1 System Overview ...
Page 138: ...2 104 Section 2 Installation ...
Page 196: ...3 58 Section 3 Functional Description ...
Page 286: ...Index 6 Index ...