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Service Guide
SP-i205U
Version : 1.0
Page 8 of 14
1.2.2
Power LED (indicator) no light
Problem
Solutions
1.2.3 Volume no function
Problem
Solutions
Power LED (indicator) no light
Power switch or LED
defective
Defective
U1, Q1, Q2
USB cable disconnected
or defective
Re-solder or replace
defective component(s)
Analyzer and
Identify the Causes
Volume no function
Broken or short circuit
Defective U1, SW1, SW3
Check solder points on PCB
Analyzer and
Identify the Causes
Check and Replace defective
components
Check the
USB cable