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Service Guide
SP-i355
Version : 1.0
Page 7 of 15
Attention
1.2.1 One or more channels no sound (Line in jack no function)
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 U1,
U2 , U3 , VR1
Speaker cable
dis-connect , JACK1 or
JACK2 defective or
speaker damaged
Check solder points on
PCB
Check and Replace
defective IC , VR
Re-connect speaker
cable or replace
defective speaker(s)
Analyzer and
Identify the Causes