Led Indicator Unlight - Genius KYE Systems SW-HF5.1 4000 Service Manual

S
ervice
G
uide
1.2.2 No response when power on
Problem
Analyze and
Identify the
Causes
Solutions

1.2.3 LED indicator unlight

Problem
Analyze and
Identify the
Causes
Solutions
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No response when power on
Defective SW1,U9(2323)
U10(2258)
Replace defective parts
Defective LED
Replace defective LED
Version: 1.0
Resolder or reconnect
MCU PCB OR AMP PCB
LED indicator unlight
Replace defective U5(78L05)
Page 8/17
SW-HF5.1 4000
MCU PCB disconnected
from amp PCB
Defective U5(78L05)