Polaroid SX70 manual Camera Analysis Charts, Test points on SX-70 shutters

d. With the 1000 ohm resistor still in place, connect a jumper wire between the motor (minus TP9 contact) and the battery (minus TP1 contact) for a moment :

(1)If the motor runs, the MMC is defective.

(2)If the motor does not run, the motor is defective

e. Remove the jumper immediatly after determining the fault aera.

2.Camera Analysis Charts

Once familiarity with the system is gained, repair people can rely on the failure analysis charts to troubleshoot camera problems. When the charts lead you to a repair procedure, refer to Section IV, Repairs and Adjustments for the necessary

information. Set up the test equipment as shown Figure 3-18 Testing instrument connections in Figure 3-18. The film pack simulator is inserted

into the camera and the negative lead from the VOM is connected to camera ground through the power supply. This allows all the tests to be completed simply by moving the VOM lead as a probe from point to point. Figure 3-19 will assist you in locating the test points or terminals called out.

Figure 3-19 Test points on SX-70 shutters