Genius SP-HF800A Service Manual page 7

Service Guide
Attention
Please follow the numbered sequence marked within parenthesis given in individual
Flow chat, in that this is the best-recommended sequence to rectify the problems.
1.2.1 One or more channels no sound
Problem
Analyzer and
Identify the Causes
Solutions
One or more channels no sound
Broken or short circuit
Check solder points on
PCB
Version : 1.0
Defective U1，K3，K2
Check and Replace
defective U1,K3,K2
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SP-HF800A
Speaker cable dis-connect or
speaker damaged
Re-connect speaker cable or
replace defective speaker(s)