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(12) Place the tester probes between pins 9 (signal) and 11 (ground) of connector J6 on the driver
board. There should be a square wave signal alternating between 0 and 5 Vdc. Using a tester,
the reading should be 2.5 Vdc.
(13) Place the tester probes between pins 4 (signal) and 5 (ground) of portable connector CN28.
There should be a square wave signal varying alternating 0 and 5 Vdc. Using a tester, the
reading should be approximately 2.5 Vdc.
(14) Place the tester probes between pins 9 (signal) and 11 (ground) of connector K4 on the CPU
board. There should be a square wave signal alternating between 0 an 5 Vdc. Using a tester,
the reading should be approximately 2.5 Vdc.
(15) Place the tester probes in series with the motor cable. When the elevation changes the steady-
state measured value should be less than 4-5 A.
Page 6.32
SPAZIO FORMA: Service & Maintenance manual - rev. 1.0
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