Macbook Pro A1990 820-01326 Short on G3H Dead Liquid Damaged | Macbook repairs New Zealand

 Macbook pro 15.6 A1990 water damaged. Board number 820-01326.

Macbook repair experts AppleFix 125 ward street Hamilton New Zealand Call 078394111 mail in repair instructions read here https://applefix.co.nz/send-your-device/ A general guide to macbook a1990 repair Repairing a shorted G3H issue on a MacBook A1990 involves troubleshooting and locating the component or area that is causing the short. This process requires a good understanding of electronics, proper tools, and caution. If you're not comfortable with electronics repair or don't have experience with MacBook repairs, it's strongly advised to seek professional assistance, as attempting repairs without proper expertise can lead to further damage. Here's a general guide for informational purposes only. Note that specifics can vary based on the nature of the short and the MacBook model: Tools and Materials Needed: Multimeter. Schematics and boardview files for MacBook A1990. Isopropyl alcohol and a brush. Thermal camera (optional). Soldering iron and soldering equipment. ESD-safe workspace and wrist strap. Procedure: Prepare Your Workspace: Ensure you're working in an electrostatic discharge (ESD)-safe environment to prevent damage to electronic components. Disconnect Power: Power off your MacBook and disconnect it from any power source. Disassemble the MacBook: Follow a disassembly guide specific to your MacBook model to expose the logic board. Inspect for Visible Damage: Visually inspect the logic board for any signs of physical damage, burnt components, or liquid damage. Clean the board with isopropyl alcohol and a brush. Check for Short Circuits: Using a multimeter in continuity mode, check for short circuits on the main power rails, especially G3H. Compare your readings to the expected values from the schematics. Identify Components: Use the schematics and boardview files to identify the location of the G3H power rail and the components connected to it. Thermal Imaging (Optional): Use a thermal camera to identify hotspots on the logic board. Overheating components may indicate the area of the short. Isolate Components: Remove or lift components connected to the G3H power rail one by one and check for changes in the multimeter readings. Inspect the Battery: The battery could be a source of a short. Disconnect and inspect the battery, checking for any signs of damage. Soldering Work: If you identify a shorted component, carefully desolder it and replace it with a new one. Pay attention to proper soldering techniques. Test After Each Step: Power on the MacBook after each step to check if the short has been resolved. Reassemble and Test: Once you've identified and resolved the issue, reassemble the MacBook and perform a thorough test to ensure proper functionality. Remember, MacBook logic board repairs, especially dealing with shorts, can be intricate and challenging. If you're not confident in your skills, it's advisable to seek the help of a professional technician or a reputable repair service. AppleFix Hamilton are experts in macbook repairs call 078394111 or visit 125 ward street hamilton new zealand

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