Genius SP-HF800A Service Manual page 8

Service Guide
1.2.2 Power LED (indicator) no light
Problem
Analyzer and
Identify the Causes
Solutions
1.2.3 Volume no function
Problem
Analyzer and
Identify the Causes
Solutions
Power LED (indicator) no light
Power switch or LED defective
Broken or short circuit
Check solder points on PCB
Version : 1.0
Defective K3,U3,
F1,R21
Re-solder or replace
defective component(s)
Volume no function
Check and Replace defective
components
Page 8 of 15
SP-HF800A
Ac cord of transformer
disconnected or defective
Defective K3，J3