One Or More Channels No Sound - Genius SP-HF1800A Service Manual

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