No guide matches your search.
Try a board number (e.g. 820-3476) — or use the board lookup →
Try a board number (e.g. 820-3476) — or use the board lookup →
13 guides
Apple Logic Boards
MacBook Pro 13-inch M1 A2338 — Logic Board Repair
Board-level repair guide for MacBook Pro 13-inch M1 A2338. PP3V3_S5, PP5V_S5, SMC_BC_ACOK, PPBUS_G3H voltage measurement…
Apple Logic Boards
MacBook Pro 16-inch M1 Pro A2485 — Logic Board Repair
Board-level repair guide for MacBook Pro 16-inch M1 Pro A2485. PP3V3_S5, PP5V_S5, SMC_BC_ACOK, PPBUS_G3H voltage measure…
Apple Logic Boards
MacBook Pro 16-inch M2 Max A2780 — Logic Board Repair
Board-level repair guide for MacBook Pro 16-inch M2 Max A2780. PP3V3_S5, PP5V_S5, SMC_BC_ACOK, PPBUS_G3H voltage measure…
Apple Logic Boards
MacBook Pro M3 Max A2991 No Power Board Repair — Apple Silicon Logic Board
Board-level repair guide for MacBook Pro M3 Max A2991. Fix no power on Apple M3 Max logic boards — USB-C, PPBUS_G3H and …
Apple Logic Boards
MacBook Pro 14-inch M2 Pro A2779 No Power Repair — Apple Silicon Logic Board
Board-level repair guide for MacBook Pro 14-inch M2 Pro A2779. Fix no power on Apple M2 Pro logic boards — USB-C PD, PPB…
Apple Logic Boards
MacBook Pro 14-inch M1 Pro A2442 No Power Repair — Logic Board 820-02098
820-02098
Board-level repair guide for MacBook Pro 14-inch M1 Pro A2442 (820-02098). Diagnose no power on Apple M1 Pro boards — US…
Apple Logic Boards
MacBook Air M3 A3114 No Power Board Repair — Apple Silicon 15-inch
Board-level repair guide for MacBook Air M3 A3114 (15-inch). Fix no power on Apple M3 logic boards — USB-C PD, standby r…
Apple Logic Boards
MacBook Air M2 A2681 No Power Board Repair — Apple Silicon, USB-C PD
Board-level repair guide for MacBook Air M2 A2681. Fix no power on Apple M2 logic boards — USB-C power delivery faults, …
Apple Logic Boards
MacBook Air M1 A2337 No Power Board Repair — Apple Silicon Logic Board (820-02016)
820-02016
Board-level repair guide for MacBook Air M1 A2337 (820-02016). Diagnose no power on Apple Silicon logic boards — PPBUS_G…
Apple Logic Boards
MacBook Air A1932 Not Charging Repair — CD3215 USB-C, No Power (820-01521)
820-01521
Board-level repair guide for MacBook Air A1932 2018 (820-01521). Fix no power and not charging via CD3215 USB-C PD contr…
Apple Logic Boards
MacBook Air A1466 No Power Repair — PPBUS_G3H Short, ISL6259, Liquid Damage (820-3437)
820-3437
Board-level repair guide for MacBook Air A1466 (820-3437-B). Diagnose PPBUS_G3H shorts, ISL6259 charging faults and liqu…
Apple Logic Boards
MacBook Pro 820-3209-A No Power Repair — NVIDIA GPU, SMC, PPBUS (A1278 / A1286)
820-3209
Board-level repair guide for MacBook Pro 820-3209-A (A1278, A1286, 2011–2012). Fix no power, NVIDIA GPU failures, SMC fa…
Apple Logic Boards
MacBook Pro A1502 No Power Repair — PPBUS_G3H, ISL6259, LP8550 Backlight (820-3476 / 820-4924)
820-3476
Board-level repair guide for MacBook Pro A1502 (820-3476, 820-4924). Diagnose no power with PPBUS_G3H voltage map, ISL62…
3 guides
Gaming Consoles
PS4 CUH-1200 Board Repair Guide — BLOD, MN864729 HDMI, No Power, UART Diagnostics
PS4 CUH-1200 board-level repair guide: diagnose and fix BLOD, MN864729 HDMI encoder faults, no power, APU VCORE issues a…
Gaming Consoles
Xbox Series X No Power Board Repair — Southbridge, HDMI NB7N621M Diagnostics
Board-level repair guide for Xbox Series X. Fix no power, southbridge faults and HDMI NB7N621M encoder failures — voltag…
Gaming Consoles
Nintendo Switch Not Charging Repair — BQ24193, M92T36 Chip-Level Guide (HAC-001)
Board-level repair guide for Nintendo Switch HAC-001. Fix not charging and no power — BQ24193 battery IC diagnosis, M92T…
Technical Resources
Repair Knowledge Base
Repair glossary, real-world case studies with full diagnostic process — updated continuously.
Tools & Equipment
Got the right tools for Level 3?
Board-level repair requires precise equipment: hot air stations, oscilloscopes, DC power supplies. See the curated list used in these guides.
View tools & equipment →
No affiliate links — just what works.
Repair Case Studies
1 documented board-level repairs — full diagnostic process, measurements and fix.
820-01521
MacBook Air A1932 820-01521 — No Battery Support, Full Fan Speed, Internet Recovery Loop Fix
Fix MacBook Air A1932 820-01521 booting only on AC, full fan speed, and Internet Recovery Wi-Fi loop caused by a non-ori…
→ Browse all case studies
Documented board-level repairs with full diagnostic process, measurements and fix.
Latest articles
All articles →BoardView Software: OpenBoardView and Alternatives
Technical review of BoardView software tools: OpenBoardView, Altium Viewer, KiCAD alternatives. Board-level re…
Hot Air Soldering Station: Buying Guide
Technical buying guide for hot air soldering stations. Temperature accuracy, airflow control, nozzle compatibi…
What is a Ground Plane and Why It Matters for Measurements
Learn how ground planes affect voltage measurements, signal integrity, and repair diagnostics. Essential knowl…
→ Browse all blog articles
Diagnostic methods, components explained, tools, workshop tips.