Isolating The Problem (Camera Mainframe Or Shutter Assembly?) - Polaroid Joshua Vision Service Manual

Isolating the Problem: (Camera Mainframe or Shutter Assembly?)
If you are uncertain whether a failure originates in the Camera Mainframe or in the Shutter/PC Board/Flash
Assembly, connect a known, good Shutter/PC Board/ Flash Assembly in place of the one in the Camera,
using the following parts and procedure:
Parts and Tools Needed
• Known, good Joshua Shutter/PC Board/Flash Assembly (P/N 1A2631A)
• Flex Extension Ribbon Cable (P/N 13562)
• Square drive tool (Handle P/N CPS416, bit P/N 13553)
• Needlenose pliers or tweezers
• Narrow flat-blade screwdriver or dental pick
• Soldering aid (greenstick) (P/N 94168)
Procedure
Note:
1. Remove the Rear Panel from the Camera (Figure 4-1).
2. Remove the Top Cover by removing the hinge pins (Figures 4-15 and 4-16).
3. Remove Link Pin from Shutter Assembly (Figure 4-18).
4. Remove the Bellows Retainer Tabs (access from the front; Figure 4-20).
5. Disconnect the Bellows Assembly from the Shutter Assembly (Figure 4-20).
6. Fold the Erect Linkage down out of the way.
7. Disconnect the Flex from the Shutter Assembly by releasing the Flex Connector Cap with a narrow
screwdriver or dental pick (Figure 4-21).
8. Connect the Flex Cap end of the Flex Extension Ribbon Cable to the Camera Flex tab just disconnected
from the Shutter (Figure 5-5).
9. Connect the other end of the Flex Extension Ribbon Cable to the flex connector in a known, good
Shutter/PC Board Assembly.
Refer to Section 4, Disassembly and Re-assembly, for illustrations and more
detailed instructions, if needed.
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