Huvitz HRK-9000A, Service Manual

Page: 65 / 77

64 Auto Ref/Keratometer HRK-9000A ------------------------------------------------------------------------------------------------
Phenomenon1: When Power is ON, there is no action
Check whether power cable is inserted well
check Fuse in the bottom side
1. Check whether the cable from SMPS to Main Board is
instered well
2. Check the v5V) of connector by using DMM
*Please refer to 3-3 section of Service Manual for Electrical
Wiring
V5V) OK?
Take off the head Top cover
Replace Main Board
(In this case, you should do Model Eye Setup process
again)
Yes
1. Take off the bottom case
2. Check whether the power
voltage is 110V or 220V by
DMM
Is voltage 110 or 220V ?
Yes
No
Replace SMPS
Check and Replace
Fuse socket
No