Canon EOS D60 Service Manual page 211

User Internal
Notice Error
99 80 This error occurs in the following
conditions:
1) When initial position of X contact and
CN2 are not detected.
2) When the shutter operation sequence
was not completed correctly.
3) When the built-in flash cannot be
recharged after the E-TTL pre-flash but
before the main exposure.
99 81 This error occurs in the following
conditions:
1) When the mirror-down status with
SW1 ON cannot be verified.
2) When the condition of the phase switch
is not changed during shutter release.
99 82 This error occurs when the built-in flash
cannot be charged.
99 83 This error occurs when the built-in flash's
pop-up signal cannot be detected even
after requested three times.
1 84 This error occurs in the following
conditions:
1) When electronic communication with the
lens in main SW ON or SW1-ON
condition cannot be established.
2) When the lens diaphragm cannot be
controlled during shutter release.
99 85 In case of communication error between
digital board and camera's MPU.
99 86 In case of communication error between
digital board and camera's MPU.
99 87 In case of damage or abnormality in the
digital firmware. (Does not occur to the
cameras for mass production.)
Contents
Report No. ACD-0054 3/3
Probable Cause and
Countermeasure
・Shutter Defect
・Replace the shutter unit
(CG2-0761-000).
・Clean and check the phase
switch
・Replace the mirror box unit
（CY3-1394-000）.
・Charging circuit base or
main capacitor defect.
・Charging defect could occur
even with X-contact short circuit.
・Top cover
・Clean the electronic contacts on
the lens mount.
・Lens defect (main circuit base,
EMD etc.)
・Digital board
・Camera main board
・Digital board
・Camera main board
・Rewrite the firmware.