knusperfisch Posted January 15, 2014 Share Posted January 15, 2014 Hi, does somebody know the part number of the optcal fork sensor used in Atari 1050 disk drive? thanks! Quote Link to comment Share on other sites More sharing options...
BillC Posted January 15, 2014 Share Posted January 15, 2014 Hi, does somebody know the part number of the optcal fork sensor used in Atari 1050 disk drive? thanks! B&C/myatari.com list the following: PRA048 TRACK 0 SENSOR TANDN 1050 10.00PRA047 TRACK 0 SENSOR WORLD 1050 10.00 Quote Link to comment Share on other sites More sharing options...
ricortes Posted January 16, 2014 Share Posted January 16, 2014 More of a confession then helpful. At some of the track zero sensors can be ~hacked apart. Invariably, it is the infrared LED that has gone out. Just jerking around, I ground a regular red LED down to size, flat and square IIRC, and used it. Worked fine. I wish I still had that much energy and time! Probably only took me 8-10 hours. If you are absolutely sure the sensor is bad, probably would save you a couple of bucks and some delays for shipping. Quote Link to comment Share on other sites More sharing options...
knusperfisch Posted January 17, 2014 Author Share Posted January 17, 2014 Thanks for the answers. I know that there is a small sqare shaped IR led inside the case, but it is glued in place. I need to break the housing to remove it. The LED is dead because one pin broke off with my attempt to pull it out. I don't know if the photodiode works. Maybe not, because I accidentally plugged the header connector on the pins for the drive motor which maybe destroyed the diode as well. I think I'll first experiment with a common fork sensor, to see if it works electrically. To mount that thing in place will be a bit of a challenge... Quote Link to comment Share on other sites More sharing options...
rbeane1956 Posted July 10, 2015 Share Posted July 10, 2015 This is a drop in replacement for the track zero sensor. http://www.newark.com/optek-technology/opb842w51z/slotted-optical-switch/dp/73K1112?CMP=KNC-GUSA-GEN-DSA-PLA-OPTEK_TECHNOLOGY&mckv=sdUBRAClu_dc|pcrid|67429187781|plid||kword|_inurl:_brand:+optek+technology%23inurl:_product_type:+sensors+%26+transducers%23inurl:_product_type:+photo+interrupters|match|b&gclid=Cj0KEQjwiN6sBRDK2vOO_vaRs5cBEiQAfsnJCdmS35JeFxZnBa9W2C7QHapjCFqP197u0X5NCCZkMG4aAsWH8P8HAQ 1 Quote Link to comment Share on other sites More sharing options...
Bikerbob Posted March 24, 2020 Share Posted March 24, 2020 Working on an Indus GT - same mech - tandon. I am getting a G5 error - which is a read error. If I get the diags program running and switch this drive in.. so I can test.. many of the tests pass. But the track Zero sensor I cannot get to work. In fact it should say move in or move out.. but I am just getting msg no feedback from sensor? or is disk inserted. SO I figure the sensor is bad.. is there a test to make sure I am replacing the correct part? I have a bunch of 1050s around.. I am thinking maybe swapping a mech out.. except the part of changing the indus controller card.. so.. maybe swapping a zero sensor in? James Quote Link to comment Share on other sites More sharing options...
manterola Posted March 24, 2020 Share Posted March 24, 2020 (edited) Mouser.com has the replacement of the sensor for 1050 according to some YouTube video I saw. I have not tested myself if it work, but I see no problem with it. The part number is opb842w51z as mentioned before. Not sure it will work with Indus. Edited March 24, 2020 by manterola 1 1 Quote Link to comment Share on other sites More sharing options...
blacka013 Posted March 24, 2020 Share Posted March 24, 2020 Try https://eu.mouser.com and enter Mouser number 828-OPB842W51Z Regards 1 Quote Link to comment Share on other sites More sharing options...
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