I have a Fan-tastic 600 Vent in my van. There is a problem with the cover going up and down. I have checked all the switches and wiring. The problem appears to be in the control circuit for up/down lid, the MC 103 PCB. I have trawled the web and can find no circuit diagram. Does anyone have a diagram?
Thanks for the reply, I have already been thru those.
Kevin
03_troopy said
04:02 PM Mar 23, 2014
Can you post a closeup view of the component side of the board. Although if you are looking for a schematic of the board, it sounds like you know enough to check the most common components likely to cause a problem. With products like this, it's fairly unlikely you'll get a schematic unless someone has sat down and traced out the board.
rmb3218 said
05:55 PM Mar 23, 2014
03_troopy wrote:
Can you post a closeup view of the component side of the board. Although if you are looking for a schematic of the board, it sounds like you know enough to check the most common components likely to cause a problem. With products like this, it's fairly unlikely you'll get a schematic unless someone has sat down and traced out the board.
I'll try to get a photo up. It's got a couple of NAND Scmidt triggers 4 transistors and a voltage regulator to reduce 12v down to about 10v for the motor. There a no open/closed switches it appears to sense a rise in motor current at open/closed position to turn off. There are no relays.
Kevin
-- Edited by rmb3218 on Sunday 23rd of March 2014 06:10:24 PM
DeBe said
06:58 PM Mar 23, 2014
Need pics, the 4 Transistors are probable a H bridge for motor direction F/R. For any attempt to draw the circuit there will need to be clear photos of both sides on the circuitboard.
-- Edited by DeBe on Sunday 23rd of March 2014 10:08:22 PM
Hi All,
I have a Fan-tastic 600 Vent in my van. There is a problem with the cover going up and down. I have checked all the switches and wiring. The problem appears to be in the control circuit for up/down lid, the MC 103 PCB. I have trawled the web and can find no circuit diagram. Does anyone have a diagram?
Kevin
First start is take some good clear Macro pictures of both sides of the Circuit board & post here.
Is this any good ????? Bit hard to see though;
https://www.google.com.au/#q=fantastic+vent+wiring+diagram
More diagrams on this link too;
https://www.google.com.au/search?q=fantastic+vent+wiring+diagram&tbm=isch&tbo=u&source=univ&sa=X&ei=IV4uU-TSA8eKkgXjyoHQAg&ved=0CDwQ7Ak&biw=1067&bih=496
I'll try to get a photo up. It's got a couple of NAND Scmidt triggers 4 transistors and a voltage regulator to reduce 12v down to about 10v for the motor. There a no open/closed switches it appears to sense a rise in motor current at open/closed position to turn off. There are no relays.
Kevin
-- Edited by rmb3218 on Sunday 23rd of March 2014 06:10:24 PM
Need pics, the 4 Transistors are probable a H bridge for motor direction F/R. For any attempt to draw the circuit there will need to be clear photos of both sides on the circuitboard.
-- Edited by DeBe on Sunday 23rd of March 2014 10:08:22 PM