Common Camera Failure Modes And Corrective Procedures - Polaroid Joshua Vision Service Manual

Common Camera Failure Modes and Corrective Procedures

1. Audible or Visual Jam Signal (Film pack in camera, but no film jammed)
(Two-tone beep four times; red LED on flash tower flashes eight times)
• Check camera for mid-cycle condition.
• Check Full Chamber Link and Switch contacts (See Figure 2-28).
• Check position of Storage Pick (See Figure 2-27).
• Check condition of DKEC Switch (See Figure 2-19).
• Check position of Film Shade in door (See Figure 2-22).
• Check position of Actuator Link in door (See Figure 2-27).
• Check Flex connection to Logic Switch (See Figure 5-3).
• Check for short from solder slivers in Flex connection to Shutter, and slivers on Flex itself.
2. No Dark Slide (Camera not erected)
• Check condition of Door Power Actuator (See Figures 2-3 to 2-7).
• Check condition of Door Power Actuator Dark Slide Link/Spring (See Figures 2-4 to 2-7).
• Check DKEC Switch (should be closed) (See Figure 2-19).
• Check Flex connection to Erect (Power) Switch (See Figure 5-2).
• Check condition of B+, VER and GND wireforms in Erect (Power) Switch (See Figure 2-11).
• Check Flex connection to back of Shutter Assembly.
• Check Flex connection to Motor (See Figure 5-1).
• Check condition of battery contacts.
• Check S1A/S1B Switch connections (must not be shorted) (See Figure 5-3).
3. No Dark Slide (Camera erected)
• Check condition of Door Latch (See Figure 2-8).
• Check condition of Door Latch Sensor (See Figure 2-8).
• Check condition of Erect Sensor (See Figure 2-9).
• Check condition of B+, VER and GND wireforms in Erect (Power) Switch (See Figures 2-8
and 2-9).
• Check DKEC Switch (should be closed) (See Figure 2-19).
• Check Flex connection to Erect (Power) Switch (See Figure 5-2).
• Check Flex connection to Motor (See Figure 5-1).
• Check Flex connection to back of Shutter Assemby.
• Check condition of battery contacts.
• Check S1A/S1B Switch connections (must not be shorted) (See Figure 5-3).
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