User Guide

CCS Technical Documentation BB Description & Troubleshooting
Company Confidential RH-4
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Start
Are the Flip LEDs
working?
No
Change A-Cover
Assy. Are the LEDs
working now?
Retest failing
A-Cover Assy.
Yes
End
Check X307 (solder
joints). Is it OK?
Change X307No
Yes
Yes
No
Measure Voltage of LED+
LED+ = ~3.2V when LED
driver (V303) is enabled.
Is it OK?
N
o
Check V303, V329, R307, and
R305.
If not OK, change defect part
Yes
Retest
Check L301 and
L302.
Is it OK?
Change L301
and L302
No
Yes