Canon GP405 Service Manual page 545

2. DC Controller PCB (DC driver)
LED200: Check it to find out the state of the composite power supply PCB is indicated by
flashing at different intervals. For details, see Table 13-601.
VR200: Turn it to adjust the lamp intensity used when shading auto correction
(FUNCTION>CCD>MAN-ADJ) is executed in service mode. The result is good if
LED201 turns on. Its adjustment range is equal to 3 rotations.
If LED201 does not turn on after a single rotation, try rotating it in the opposite
direction.
LED201: Check it to find out whether VR200 is correctly adjusted (it should turn on).
COPYRIGHT © 1999 CANON INC. CANON 405/335 REV.0 JAN. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
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Figure 14-609
CHAPTER 14 TROUBLESHOOTING
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LED201
LED200
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VR200
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