Mac Tools Et 955 Manual Free
I have an old Mac Tools ET955 multimeter. It is also identical to a unit provided by Matco. The circuit board has the inscription 'Actron 400-1486' on the solder side. The problem is it constantly displays the count of '23' or '2.3' or '.23' with nothing connected, depending on the range selector. A 9-volt battery displays '+14v' or '-24v' depending on polarity. Adjusting the pots has no effect. I removed the MM5601BN quad 2-input NOR IC and the 7555 timer and the display reverted to all zeroes. So I assume either the 7555 timer chip or the 5601 chip is bad - not sure.
Anyway, does anyone have any suggestions on what could be the problem and where I could get a schematic and repair manual for the unit. I assume it is American made.
Thanks.
Anyway, does anyone have any suggestions on what could be the problem and where I could get a schematic and repair manual for the unit. I assume it is American made.
Thanks.
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Mac Tools Et 955 Manual Download
You are bidding on the following item: Mac Tools ET-920 Tach-Dwell-Volts-Ohms-Amps meter in case w/ cables and manual. This is being sold as collectable vintage tool. FREE SHIPPING!!!! The condition of the item is as follows: Used and untested. This is a vintage tool and it does show some minor signs of age. This unit has not been tested and is being sold as a vintage display piece. 14003518-1 CJG Please read the following before bidding: We are a new store so this is a new eBay account. We have been selling item on eBay for the last 11 years and we always strive to ensure that our feedback scores were in the top 99% over the 11 year span. We guarantee that you will be satisfied with our customer service.It is very important to us that we receive feedback, if you do have a complaints with anything at all, please contact us so that we can fix the problems for you. We are a business and our hours of operation are: Monday - Friday, from 9:30 a.m. until 6:00 p.m., Saturday from 9:30 a.m. until 5:30 p.m. (ALL TIMES ARE E.S.T.) Please direct your questions within our business hours for a fast response. Some payments may take up to 5 days to process Some items may take up to 10 days to ship.Mac Tools Et 955 Manual Download
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