Huvitz HLM-1, Service Manual

Page: 45 / 52

44
AUTO
-
LE
NSMETE
R
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.
Y
E
S
NO
Y
E
S
Y
E
S
Y
E
S
NO
NO