Huvitz HLM-7000P - LCD Test; LED Test

48
AUTO
-LENSMETER
4.2. Inspecting SMPS
Check1. Check if POWER SWITCH and RUG is connected properly.
Check2. Check FUSE in POWER SOCKET with DMM.
Check1. Is Power LED on in SMPS MODULE?
Check2. Check the voltage of DC POWER Cable with DMM.
(It should be AC100 - 220V)
*REFERENCE: “ELECTRICAL CONSTRUCTION DIAGRAM”
Check1. Check BUZZER beeps after 2 seconds when
you turn on the power switch
MODULE TEST for each module
Change SMPS MODULE
Change MAIN BOARD
LCD MODULE TEST
Check1. Is power LED on in MAIN BOARD?
Check2. Check whether the voltage of MAIN BOARD is 5V.
YES
NO
YES
YES
YES
NO
NO