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4-3
Servicing Precautions
Two optional circuit module extenders are available. One is for use with
the main video processing and control modules located in the front bay of
the switcher. The second is for use with the I/O and communications
modules in the rear bay. The extender modules allow operation of the
system while providing access to test points and adjustments that would
be inaccessible with the module seated normally.
CAUTION
If a circuit module in the switcher 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 the frame power OFF, wait a few seconds,
then turn power back ON again. The power-up sequence will re-synchronize the
microprocessors.
Repairing Circuit Modules
Model 2200 circuit modules are not designed to be repaired in the field.
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. Use of
improper tools or equipment to repair multi-layer circuit modules could result in
expensive damage to your system.
Repairing Power Supplies
GVG does not recommend or support field repair of Model 2200 power
supplies. Failed power supplies should be replaced.