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Integra 400 Plus — Service Manual Cobas

If the machine goes completely dark or resets randomly do not touch the CPU board first. Turn to the "Electrical" section. The Integra 400+ has a known weak spot: the capacitors. The service manual contains the voltage pin-out chart (Pins 1-5 on J28). If your +5V rail is at 4.2V, you have found your ghost. Don't pay for a motherboard; pay for a $30 capacitor kit.

Regular maintenance is crucial to ensure optimal performance and extend the lifespan of the instrument. The following procedures should be performed:

Some tasks are performed by operators, while others, like internal cleaning, are critical service steps.