Uploaded March 2025 | Updated September 2026, 2 weeks ago
In this video we repair a SNR8503M Brushless DC motor controller. These are cheap, but also take a while to get. That is why I am taking time to repair this one in this video. It will help with a project I am currently working on while I have another one on order. We also learn a lot more about a board while working on it and testing. I will also share the manual for these cheap controllers that some may find helpful. You can also find it as a pdf file on our FB page called On The Bench. I hope you find the video helpful and thanks for watching.
Amazon Affiliate links to some of my favorite Tools/Items if interested:
Any links you click on helps support the Channel and I greatly appreciate it!
80V BLDC Controller (Hall Less) as shown: amzn.to/4ioh7qH
Controller for manual link (Hall Feedback type) : amzn.to/4hYIM1H
*(requires hall sensors on motor to run it)
Heatsink I am testing with if needed: amzn.to/3Xl2KeX
(may require larger heat sink above 15A or so)
ELKLIV Autofocus Microscope if needed: amzn.to/3PpuDho
Fnirsi Micro Soldering Pen if needed: amzn.to/42l3dkL
Fnirsi Component Tester if needed: amzn.to/40jgGrJ
Jumper lead set if needed: amzn.to/3D32bj5
Solder Flux if needed: amzn.to/4gGnO79
Low Temp Solder for Removal if needed: amzn.to/4fPNBIO
Leaded 63/37 Solder if needed: amzn.to/4gGnO79
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Weller 200W Iron if needed: amzn.to/30nzhT2
Hakko 888D Iron if needed: amzn.to/36TDWyv
Hakko Curved Tip if needed: amzn.to/44LC49s
Quick 957DW Hot Air Station if needed: amzn.to/3E5xcTx
Extra Long Security bits if needed: amzn.to/3KVQNGQ
AwithZ spotwelder if needed: amzn.to/48SRkUi
you can select 14KW or 24KW Model
Performance Tools Cutter if needed: amzn.to/4d8NyYb
example Flat Jaw pliers if needed: amzn.to/3WydMwg
Mini Pliers set if needed: amzn.to/3WQnxXY
Cheap spot welder if needed: amzn.to/46D8CU0
High Output Spot welder if needed: amzn.to/3YsXs2m
Magic Power Gel if needed: amzn.to/3WRufNa
DeWalt Cordless Gyroscopic Screwdriver if needed: amzn.to/3Eevk8f
Aftermarket 8V Battery for DeWalt screwdriver if needed: amzn.to/3Ix4euv
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Extra Long Security bits if needed: amzn.to/3KVQNGQ
0-60V 0-5A Power Supply if needed: amzn.to/4158YzL
Similar to Drok DC-DC Converter if needed: amzn.to/3eUJZYk
OFLA Locking Blade knife if needed: amzn.to/3BxMbSO
WD-40 Contact Cleaner (Plastic Safe): amzn.to/2Yjo6e5
FlirOne USB C if needed: amzn.to/36VX1jn
Rigol DS1102E Scope if needed: amzn.to/35UVLvI
Atlas ESR-70 if needed: amzn.to/2QR1z4W
150W Load Tester if needed: amzn.to/30i8sn8
Northridge Fix Affiliate Links. Any purchase you make with below links helps support the channel. Thanks for your support!
NF AMTECH NC-559-V2 Flux 10mL if needed:
northridgefix.com/product/amtech-nc-559-v2-tf-flux-10ml-syringe-plunger-2-needle-sizes/?ref=thriftytoolshed
NF Low Melt Solder PK of 6 sticks if needed:
northridgefix.com/product/low-melt-solder-pack-of-6-sticks/?ref=thriftytoolshed
NF Premium Desolder Braid Wick if needed:
northridgefix.com/product/premium-desolder-braid-wick-10ft-length/?ref=thriftytoolshed
NF Mechanic Tweezers if needed:
northridgefix.com/product/mechanic-diamond-high-precision-tweezer-non-stick-carbon-coating/?ref=thriftytoolshed
Solder wire 100g 60/40 if needed:
northridgefix.com/product/best-solder-wire-roll-100g-choose-from-0-3mm-and-0-8mm/?ref=thriftytoolshed
NF.Short Voltage Injection tool if needed:
northridgefix.com/product/power-supply-short-injection-detector-with-voltage-and-current-control/?ref=thriftytoolshed
NF HEPA Fume Extractor smoke absorber if needed:
northridgefix.com/product/hepa-fume-extractor-smoke-absorber-purifier-nf-fume/?ref=thriftytoolshed
NF Atten ST-862D Hot Air Station if needed:
northridgefix.com/product/atten-st-862d-hot-air-station-with-4-nozzles/?ref=thriftytoolshed
NF Grinding Pen with 7 tips if needed:
northridgefix.com/product/grinding-pen-for-traces-repair-chip-grind-cut-hole-7-tips-battery-operated/?ref=thriftytoolshed
In this video we repair a SNR8503M Brushless DC motor controller. These are cheap, but also take a while to get. That is why I am taking time to repair this one in this video. It will help with a project I am currently working on while I have another one on order. We also learn a lot more about a board while working on it and testing. I will also share the manual for these cheap controllers that some may find helpful. You can also find it as a pdf file on our FB page called On The Bench. I hope you find the video helpful and thanks for watching.
Amazon Affiliate links to some of my favorite Tools/Items if interested:
Any links you click on helps support the Channel and I greatly appreciate it!
80V BLDC Controller (Hall Less) as shown: amzn.to/4ioh7qH
Controller for manual link (Hall Feedback type) : amzn.to/4hYIM1H
*(requires hall sensors on motor to run it)
Heatsink I am testing with if needed: amzn.to/3Xl2KeX
(may require larger heat sink above 15A or so)
ELKLIV Autofocus Microscope if needed: amzn.to/3PpuDho
Fnirsi Micro Soldering Pen if needed: amzn.to/42l3dkL
Fnirsi Component Tester if needed: amzn.to/40jgGrJ
Jumper lead set if needed: amzn.to/3D32bj5
Solder Flux if needed: amzn.to/4gGnO79
Low Temp Solder for Removal if needed: amzn.to/4fPNBIO
Leaded 63/37 Solder if needed: amzn.to/4gGnO79
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Weller 200W Iron if needed: amzn.to/30nzhT2
Hakko 888D Iron if needed: amzn.to/36TDWyv
Hakko Curved Tip if needed: amzn.to/44LC49s
Quick 957DW Hot Air Station if needed: amzn.to/3E5xcTx
Extra Long Security bits if needed: amzn.to/3KVQNGQ
AwithZ spotwelder if needed: amzn.to/48SRkUi
you can select 14KW or 24KW Model
Performance Tools Cutter if needed: amzn.to/4d8NyYb
example Flat Jaw pliers if needed: amzn.to/3WydMwg
Mini Pliers set if needed: amzn.to/3WQnxXY
Cheap spot welder if needed: amzn.to/46D8CU0
High Output Spot welder if needed: amzn.to/3YsXs2m
Magic Power Gel if needed: amzn.to/3WRufNa
DeWalt Cordless Gyroscopic Screwdriver if needed: amzn.to/3Eevk8f
Aftermarket 8V Battery for DeWalt screwdriver if needed: amzn.to/3Ix4euv
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Extra Long Security bits if needed: amzn.to/3KVQNGQ
0-60V 0-5A Power Supply if needed: amzn.to/4158YzL
Similar to Drok DC-DC Converter if needed: amzn.to/3eUJZYk
OFLA Locking Blade knife if needed: amzn.to/3BxMbSO
WD-40 Contact Cleaner (Plastic Safe): amzn.to/2Yjo6e5
FlirOne USB C if needed: amzn.to/36VX1jn
Rigol DS1102E Scope if needed: amzn.to/35UVLvI
Atlas ESR-70 if needed: amzn.to/2QR1z4W
150W Load Tester if needed: amzn.to/30i8sn8
Northridge Fix Affiliate Links. Any purchase you make with below links helps support the channel. Thanks for your support!
NF AMTECH NC-559-V2 Flux 10mL if needed:
northridgefix.com/product/amtech-nc-559-v2-tf-flux-10ml-syringe-plunger-2-needle-sizes/?ref=thriftytoolshed
NF Low Melt Solder PK of 6 sticks if needed:
northridgefix.com/product/low-melt-solder-pack-of-6-sticks/?ref=thriftytoolshed
NF Premium Desolder Braid Wick if needed:
northridgefix.com/product/premium-desolder-braid-wick-10ft-length/?ref=thriftytoolshed
NF Mechanic Tweezers if needed:
northridgefix.com/product/mechanic-diamond-high-precision-tweezer-non-stick-carbon-coating/?ref=thriftytoolshed
Solder wire 100g 60/40 if needed:
northridgefix.com/product/best-solder-wire-roll-100g-choose-from-0-3mm-and-0-8mm/?ref=thriftytoolshed
NF.Short Voltage Injection tool if needed:
northridgefix.com/product/power-supply-short-injection-detector-with-voltage-and-current-control/?ref=thriftytoolshed
NF HEPA Fume Extractor smoke absorber if needed:
northridgefix.com/product/hepa-fume-extractor-smoke-absorber-purifier-nf-fume/?ref=thriftytoolshed
NF Atten ST-862D Hot Air Station if needed:
northridgefix.com/product/atten-st-862d-hot-air-station-with-4-nozzles/?ref=thriftytoolshed
NF Grinding Pen with 7 tips if needed:
northridgefix.com/product/grinding-pen-for-traces-repair-chip-grind-cut-hole-7-tips-battery-operated/?ref=thriftytoolshed
