Genius SW-HF 5.1 6000 - 1.2.2 No sound

Service Guide SW-HF 5.1 6000
1.2.2 no sound
Problem
Analyze and
identify the
causes
Solutions
Version 1.0 Page 8 of 36
PCB broken,
dry-soldered or
short-circuited
Assembled line
defectively
connected
No sound
1. Defective IC2 on CON PCB
2. Defective IC1, IC2 on
INPUT PCB
3. Defective IC1, IC2, IC3, IC4, IC5, IC6, IC7, IC8, IC9, R28,
R29, R52, EC18, EC19, EC20 on
AMP PCB
4. Defective IC1， IC2，R15，R16 on SWAMP PCB
Resolder or
replace
Re-connect
or replace
Check and replace defective
IC or other components.