SELF TEST FEATURE

Your Bathy-500MF contains an automatic self-test, which is initiated each time the unit is turned on. The display shown below generally indicates a properly functioning Bathy-500MF. Upon normal self-test (no errors found), this display screen will automatically clear itself.
As shown above, the designation "ok" next to the PCB designation indicates normal (proper) functioning of that specific PCB.
		Should the self-test routine detect an error, the self test will halt after the last operational PCB is tested; The procedure will not continue until the first PCB found to have a problem is replaced. Then upon power-up again, the procedure will continue. For example, the display shown at left indicates proper operation of the CPU and Print/Drive PCB's but a failure with the T/R PCB. The Data I/O PCB cannot thus be tested until the T/R PCB is replaced.