Hashboard Diagnostics & Micro-Soldering Workshop
Practical lab session focused on identifying faulty ASIC chips, testing LDO regulators, and basic SMD rework techniques.
Target Audience & Prerequisites
Who this is for: Intermediate operators and technical hobbyists who want to diagnose and repair common hardware faults rather than shipping units overseas.
Lead Instructor: Marcus Finch (Electronics Specialist)
Preparation: Basic familiarity with electronics and using a digital multimeter is recommended.
Safety Constraints: Work involves high heat tools (350°C+). Adherence to eye protection and ventilation guidelines is mandatory.
Delivered Outcome & Real Result
The ability to systematically trace test-point signals (CLK, TX, RX, RST, BO) using multimeters and oscilloscopes, pinpoint dead chips, and re-flow cold solder joints safely.
Curriculum & Technical Scope
Core Topics Covered
- ✓ ASIC domain architecture: series voltage drops and signal propagation
- ✓ Using digital test fixtures and serial log debugging
- ✓ Hot air rework stations: temperature profiles and flux chemistry
- ✓ Replacing buck converters, crystal oscillators, and PIC microcontrollers
Inclusions & Exclusions
- Access to individual microscope and hot-air rework station
- Scrap boards for soldering practice before working on live test units
- Test-point cheat sheets for Antminer S19 and Whatsminer M30 series
- Safety equipment and ESD grounding gear
- Mass production repair services during class hours
- Warranty fulfillment on personal customer boards
Operational Stages & Delivery Breakdown
1. Signal Flow Theory
Understand how clock, reset, and serial data travel through daisy-chained ASIC chip series.
2. Test Fixture Analysis
Connect boards to diagnostic fixtures and decode kernel logs to identify the exact failing chip number.
3. Physical Rework Practice
Practice controlled heating, solder paste application, and chip alignment on test boards.
4. Verification & Stress Test
Re-test repaired boards under simulated load in our isolated test chamber.
Ready to Secure Your Placement?
Direct hands-on bench allocations are strictly capped to ensure individual instructor supervision and complete access to electrical and diagnostic equipment.
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