Canon 1000 Service Manual page 554

7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
b. E194=0001, 0002
Cause Step
Shutter drive
motor (M25)
Shutter open
sensor (PS40)
Shutter closed
sensor (PS39)
Shutter drive
system
Parts (deforma-
tion, dirt)
Correcting E194=0001/0002
1) Turn off the power switch.
2) Open the front cover.
3) Remove the image position correction CCD unit. (See the descriptions under "Removing the Image
Position Correction CCD Unit" in Chapter 4.)
4) Remove the drive releasing pin [1], and dry moving the shutter [3] while holding the mobile member.
7-118
COPYRIGHT © 2001 CANON INC.
Checks
1 Execute 'UFNC > F-MISCp > MTR'
in service mode to operate the
shutter. Does the shutter drive motor
operate normally?
2 Is the shutter open sensor (PS40)
normal? (in the case of E194-0001)
3 Is the shutter closed sensor (PS39)
normal (if E194=0002)?
4 Check the shutter drive system as
shown below. Does it move
smoothly?
5 Is the shutter screw assembly
soiled?
Yes/No
[2]
[3]
Figure 7-404
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
Action
YES Check the drive system; if
normal, replace the motor.
NO Replace the sensor.
NO Replace the sensor.
YES Check the wiring; if
normal, replace the DC
controller PCB.
NO Check the wiring; if
normal, replace the CCD
unit used for image
position correction.
YES Disassembly/clean the
parts as shown next page.
[1]