Troubleshooting Flow Charts
Pervious Page
Correct? No MP7(+5.0v) and between test point MP10 (ground) to MP6(-5.0v)
Refer to main board layout.
Yes
Correct?
Yes
MP2(+9.0v) and between test point MP10 (ground) to MP3(-9.0v)
Refer to main board layout.
Yes
Correct?
Power supply on connection board faulty. Replace connection board and reset
pressure channel. Refer to system wiring diagram and main board
replacement procedure.
Check power supply at transducer plugs.
Measure between B (ground) and A = +5V.
Measure between B (ground) and C = -5V.
Correct?
No
Faulty wiring. Check wiring of pressure transducer cable.
Yes
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