Huvitz HLM-1 - Lcd Test; Led Test

Auto Lensmeter HLM-1
45
4.3. LCD TEST
 Measurement screen is not displayed…
4.4. LED TEST
 Cross mark (+) isn’t displayed in measurement waiting state…
Check1. SMPS TEST
Check1. LCD is bright but there is no
character or figure.
Check2. There are horizontal lines on LCD
and screen display is malfunctioned.
Check if connector of LCD is
connected correctly to MAIN
BOARD.
YES
YES
Change LCD
Check1. Place white paper on FILTER COVER and
check if circular green light comes out from it.
Change LED module
Check1. Change MAIN BOARD PCB ASS’Y and test again.
Change CCD module
YES
YES
YES
YES