Power Led (Indicator) No Light; Volume , Treble, Bass No Function - Genius SP-HF1800A Service Manual

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Service Guide
1.2.2

Power LED (indicator) no light

Problem
Analyzer and
Power switch or LED
Identify the Causes
Solutions
1.2.3 Volume , Treble , Bass no function
Problem
Analyzer and
Identify the Causes
Solutions
Power LED (indicator) no light
Q101, R6, Z101,
Re-solder or replace
defective component(s)
Volume, Treble, Bass no function
Broken or short circuit
Check solder points on PCB
Version : 1.0
Page 8 of 16
SP-HF1800A
Defective JK2, AC cord of transformer
disconnected or
CON4 defective
Defective VR1, VR2, VR3,
C13, C23, C14, C24, C15,
C25, R15, R25
Check and Replace defective
components