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Revision to Connector and spare part numbers

Tony

[summary_image|350]
 
[title|Connector and spare part numbers]
 
[summary]This is a growing list of connectors and spare part numbers. If a spare part is required that is not on the list please check the source on github or ask on the forums[/summary]
 
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== Duet 3 ==
 
Coming soon.
 
== Duet 2 ==
 
===== Molex Style Connectors =====
===== Molex Style Connectors =====
 
The connectors for the stepper motor, endstop switch, thermistors and fans on the Duet 2 are Molex KK type. The Dupont-style connectors typically used with RAMPS and other electronics will also fit them. However, for maximum reliability we recommend using the correct Molex female connectors or compatible connectors, because they lock in place and will only fit one way round.
Please note, the shells and crimp pins that we supply with Duets are usually made by Würth Elektronik. The crimp pins made by Würth should only be used with shells made by Würth. In particular, they will not lock into Molex 22-01-20x5 shells.
 
===== Screw Terminals =====
===== Screw Terminals =====
 
The large terminals (6.35mm spacing) used for VIN and bed are:
this is compatible with the [http://www.farnell.com/datasheets/2336353.pdf|Metz connect 3.5mm equivalent]
 
===== Replacement parts =====
===== Replacement parts =====
 
======= Fan mosfet =======
======= Fan mosfet =======
 
If you short out a PWM fan, the fan driver mosfet will burn out. The replacement part number is '''PMV40UN2''' or '''PMV40UN2R''' which is available from the usual electronic component distributors such as Farnell/Newark/element14, Digikey, Mouser and RS. The component identifiers on the board are:
To remove the old mosfet, you will need either a hot air desoldering tool with a small nozzle, or low melting point solder such as ChipQuik . If using hot air, use a shield made from e.g. corrugated cardboard covered with Kapton tape to shield connectors and other plastic components from the hot air. The new mosfet can be soldered in place using a fine-tipped soldering iron, or by putting a little no-clean flux on the pads, placing the new mosfet on top, and using hot air again. Hot air soldering/desoldering is easier if you heat the whole board to about 100-125C on an electric hotplate.
 
======= Heater MOSFETs =======
======= Heater MOSFETs =======
 
Note when removing any of the heater MOSFETs there is significant heat-sinking into the copper of the board. A combination of hot air rework, Chipquick, and a heated plate may be needed to remove one successfully.
 
========= Bed Heater =========
========= Bed Heater =========
 
TR2: this is an IPD036N04LGBTMA1
 
========= E0, E1 Heaters =========
========= E0, E1 Heaters =========
 
1.04a and later, TR3, TR4: this is an AOD4184A
Prior to version 1.04a it was a IPD036N04LGBTMA1
 
======= VSSA fuse =======
======= VSSA fuse =======
 
If you get a short in your wiring between your heater or fan wiring and the VSSA side of a thermistor connection, and you have a Duet 2 board revision 1.0 or 1.01 or a white Duet 2 Wifi pre-production board, then fuse F1 will blow. The symptoms are:
The small green component bearing the letters 'bF' is the self-resetting fuse, and the component with stripes is the optional 10K resistor. A piece of Kapton tape was put on the board first to provide additional insulation.
 
======= Blade fuses =======
======= Blade fuses =======
 
PCB revisions 1.03 and later have a 1A mini auto blade fuse protecting the fan circuits when the fan voltage selection jumper is in the VIN position. Here is an example of a suitable replacement: https://www.ebay.co.uk/itm/20-x-1Amp-Mini-Blade-Fuses-car/172805157976. You can increase the fuse rating to 2A or even 3A if your fans, air pumps etc. draw more than 1A in total.
PCB revision 1.04 has the same 1A fuse for the fan circuits and also a 15A fuse for the bed heater circuit and a 7.5A fuse for everything else. These are mini blade fuses. The 1A can be a little hard to find but the other ratings are widely available.
 
======= TFT panel backlight inverter IC =======
======= TFT panel backlight inverter IC =======
 
If the TFT panel of a '''non-integrated''' PanelDue assembly suddenly refuses to light up, chances are that the backlight inverter chip has failed. This is a 6-pin chip marked L6CE or L6EN or L6GE or similar (the Pin 1 marking bar can easily be mistaken for a letter I in front of the L). The part number is MP3202DJ. It is available from RS Components, Digikey and Mouser, and also on eBay and Ali Express.

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