Service Guide
SP-HF1800A
Version : 1.0
Page 7 of 16
Attention
1.2.1 One or more channels no sound
Problem
Solutions
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 .
One or more channels no sound
Broken or short circuit
Defective IC50,
IC1, IC2, CON3,
CON5
Speaker cable
dis-connect or
speaker
damaged
Check solder points on
PCB
Check and Replace
defective IC
Re-connect speaker
cable or replace
defective speaker(s)
Analyzer and
Identify the Causes
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