SW-HF 5.1 4500 SERVICE GUIDE.pdf - Genius
SW-HF 5.1 4500 SERVICE GUIDE.pdf - Genius
SW-HF 5.1 4500 SERVICE GUIDE.pdf - Genius
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1.2.10. LED indicators abnormal<br />
Problem<br />
LED indicators no light<br />
Analyze and<br />
identify the<br />
causes<br />
1. Defective, dry-soldered, or broken <strong>SW</strong>-<strong>HF</strong><strong>5.1</strong> <strong>4500</strong> MCU<br />
PCB<br />
2. LED1, IC2, IC1 damaged<br />
3. R3-R10 <strong>SW</strong>-<strong>HF</strong><strong>5.1</strong> <strong>4500</strong> MCU PCB<br />
Solutions<br />
Check and replace<br />
Version 1.1 Page 16 of 33
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