![background image](http://html1.mh-extra.com/html/kye-systems-corp/genius-sp-i177/genius-sp-i177_service-manual_2014703008.webp)
Service Guide Model No : SP-i177
1.2 LED no light
Problem
Analyze and
Identify the Causes
Solutions
Power LED no light
Component cold
solder or Short
Circuit
Defective U2,Q1
or Q2
BT1 or LED1 defective
Check solder
point on PCBA
Check and
Replace defective
IC or Transistor
Replace defective LED or
Battery
Page 8/15