KYE Systems Corp. Genius SP-HF850X, Service Manual, Page: 8 / 15

Service Guide
SP-HF850X
Version : 1.0
Page 8 of 15
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 K1,F2,R21
LED
Ac cord of transformer
disconnected or defective
Re-solder or replace
defective component(s)
Analyzer and
Identify the Causes
Volume no function
Broken or short circuit Defective U2,K2,K3,C13,C14
Check solder points on PCB
Analyzer and
Identify the Causes
Check and Replace defective
components