Valley FABRICATOR 251 Service Manual - Service Manual
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104
August 22, 2008
7-13
SERVICE MANUAL
FABRICATOR 251
7.16 Rectifier Assembly Test
1. Disconnect one of the Main Transformer connections from the rectifier assembly.
2. Disconnect and isolate wires from the Negative output of the Rectifier Assembly See Figure 7-3.
3. Disconnect JB connector from MAIN PCB 1.
4. Using a meter check the diode readings between the following points:
Forward biased diode junction:
Positive meter probe on rectifier plates 2 and 3 to plates 1 & 4
Negative meter probe on rectifier plates 1 & 4 to plates 2 & 3
Art # A-07575
1
2
3
4
Remove and isolate from rectifier assembly
Figure 7-3: Rectifier Assembly Test
Double forward biased junction:
Positive meter probe on rectifier plates 1 & 4 to positive rectifier output terminal (Picture needed)