Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
TROUBLESHOOTING & REPAIR
FIELD EFFECT TRANSISTOR/SWITCH BOARD TEST (continued)
FIGURE F.20 - RESISTOR LOCATIONS
5 PAIRS OF RESISTORS CHECK VOLTAGES BETWEEN EACH TERMINAL AND FROM EACH RESISTOR TO CASE GROUND
Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
7.Locate the two sets of two resistors on the left side of the machine and three sets of two resistors on the right side of the machine. See Figure F.20. Do not touch the resistors or any other internal machine component. Using a DC voltmeter, check for any DC voltage that may be present across the terminals of each resistor and from each resistor to case ground (20 mea- surements in all). If a voltage is present, be careful not to touch these resistors.
WARNING
ELECTRIC SHOCK can kill.
Proceed with caution. Be careful not to touch any internal machine components during the dis-
charge procedure.
8.Locate terminals #9 and #12 on the switch boards. They can be identified by the “Discharge” labels, which are located on each of the four switch boards. See Figure
F.21.
