SAL500F80 - Sony Digital Camera Service Manual (repair manual). Page 51

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SAL500F80 (REFLEX 8/500) (500mm F8 Reflex)
3. In case of error display in the Focus Hold Button
1)
When the Focus Hold Button cannot be pressed within a certain period of time or the button is defective, the window below appears.
Fig.4-6-5
2)
In case of error caused by time-out of key pressing, perform the work with caution so as to press the focus hold button within a
certain period of time.
3)
If the “NG” appears, confirm or perform the following.
• Cleaning of the signal PC board of main flexible unit or perform the solder.
• Perform the click plate, and perform or cleaning of the FH pattern of main flexible unit.
• Perform or replace the solder of main flexible unit.
4)
Perform “2. Checking Method”again, repeat the inspection until “OK” appears on the pop-up window.
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