iMAX B6 Charger Repair | CONNECTION BREAK | How to repair iMAX B6 Charger.
iMAX B6 LiPo Balance Charger Repair
IMAX B6ac LiPro Balance Charger Repair
iMAX B6 Mini LiPo Balance Charger Repair
iMAX B6 LiPro Balance Charger Repair | LiPo, LiIon, LiFe, NiMH, NiCd, Pb2
Airsoft GUN , RC CAR, Drone
2H3LL (N-channel Mosfet) VDSS : 30V, RDS(ON) : 10mΩ, ID : 12A
AO4468 (N-channel Mosfet) VDSS : 30V, RDS(ON) : 14mΩ, ID : 11.6A
IRF7413 (N-channel Mosfet) VDSS : 30V, RDS(ON) : 11mΩ, ID : 12A
4920N (N-channel Dual Mosfet) VDSS : 30V, RDS(ON) : 18mΩ, ID : 8.2A
CONNECTION BREAK fix
00:00:00:00 00:00:08:27 Hello~~ Today I will repair the IMAX B6 charger.
00:00:11:00 00:00:19:27 If you try to charge the battery without the battery installed, a message is displayed with a warning sound.
00:00:20:26 00:00:29:23 For this reason, check the battery connection cable.
00:00:46:04 00:01:10:04 If the cable is normal but "CONNECTION BREAK" is still output, there is a problem inside the charger.
00:01:24:25 00:01:29:18 Unscrew the 8 screws on both sides.
00:02:00:14 00:02:04:17 Remove the 4 buttons of the operating switch.
00:02:47:16 00:02:55:27 Remove the 3 screws securing the PCB.
00:03:15:22 00:03:24:19 Check the bottom of the case, which acts as a heatsink.
00:03:31:16 00:03:40:13 This is because if the bottom and the MOSFET are in direct contact, they can receive damage from the outside.
00:03:42:04 00:03:51:01 I checked the Schottky Diode and MOSFET and they were fine.
00:03:54:07 00:04:03:06 No damage was visible on the surface of any part.
00:04:05:17 00:04:14:14 "CONNECTION BREAK" error code is most likely a problem with the battery output part..
00:04:18:15 00:04:26:20 I checked the datasheet and confirmed that the 12H3LL is a MOSFET. Let's check.
00:04:42:21 00:04:54:16 GATE and SOURCE are shorted to each other.
00:04:56:23 00:05:08:20 I'm going to replace the MOSFET.
00:05:18:02 00:05:26:29 Removing the resistor makes it easier to swap out the MOSFET.
00:06:34:22 00:06:42:15 I used a 4920N mosfet from an old lcd inverter.
00:06:43:21 00:06:52:18 Because I didn't have the 12H3LL, nor the replacement parts IRF7413 or AO4468.
00:06:58:09 00:07:08:19 However, the circuit needs to be modified to use the 4920N.
00:09:06:02 00:09:32:10 Connect jumper wires.
00:10:06:04 00:10:23:19 Restore the resistor that was removed.
00:10:30:13 00:10:39:09 The parts replacement is complete, and I will assemble in the reverse order of disassembly..
00:11:44:10 00:11:55:02 It's done, let's test it.
00:12:35:02 00:12:45:24 It's working fine past the point where the error was displayed.
00:12:52:04 00:12:59:13 Today's video will end here.
#batterycharger