Comments on: Non Repairable Of UNITY 830D Multimeter https://jestineyong.com/non-repairable-of-unity-830d-multimeter/ Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Tue, 21 Feb 2023 22:46:56 +0000 hourly 1 https://wordpress.org/?v=5.4.23 By: GS https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-400050 Tue, 21 Feb 2023 22:46:56 +0000 https://jestineyong.com/?p=25976#comment-400050 EIA-96 - 30C = 20Kom

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]]> By: Adilson https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-398308 Fri, 02 Dec 2022 06:28:13 +0000 https://jestineyong.com/?p=25976#comment-398308 Muito obrigado, você salvou meu multímetro que Deus te ilumine sempre
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Thank you very much, you saved my multimeter may God bless you always

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]]> By: Yogesh Panchal https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-375855 Sun, 12 Sep 2021 08:31:16 +0000 https://jestineyong.com/?p=25976#comment-375855 In reply to Albert van Bemmelen.

Albert, Thanks! for the Link.
frankly Albert i assumed some resistor may out of the value but it was not.
and secondly i can get 3 same new meters in the cost of new IC.that's why
concluded the repair by taking note of all SMD resistor Value and shared here for reference whoever needs the detail.

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]]> By: Yogesh Panchal https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-375854 Sun, 12 Sep 2021 07:57:09 +0000 https://jestineyong.com/?p=25976#comment-375854 In reply to Parasuraman S.

Thank You! Sir,

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]]> By: Yogesh Panchal https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-375853 Sun, 12 Sep 2021 07:53:57 +0000 https://jestineyong.com/?p=25976#comment-375853 In reply to Anwar Y Shiekh.

Anwar Y shiekh,
How you conclude repair without diagnosis???, I did my best to repair the unit. I shared here because if someone needs circuit layout and SMD Component location with value.this may helpful to them to figure out the problem and newbie will learn the process how to troubleshoot and by this they can understand "that why not all repairs end in success".
Thanks for your Comment.

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]]> By: Albert van Bemmelen https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-375843 Fri, 10 Sep 2021 12:19:28 +0000 https://jestineyong.com/?p=25976#comment-375843 The used processor controller is probably a ICL 7106 or comparable chip. See here.
Or if it really use 44 pins it can be a chip like the 44 pins chip used in the DY-294 semiconductor tester. So replacing is possible like I did in the DY 294 repair!

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]]> By: Parasuraman S https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-375842 Fri, 10 Sep 2021 12:19:18 +0000 https://jestineyong.com/?p=25976#comment-375842 A creditable attempt and learning and that is what matters at last! Good job there, Yogesh!

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]]> By: Anwar Y Shiekh https://jestineyong.com/non-repairable-of-unity-830d-multimeter/comment-page-1/#comment-375840 Fri, 10 Sep 2021 12:05:27 +0000 https://jestineyong.com/?p=25976#comment-375840 Sometimes we forget about repairs that are not possible and only post those that are; so it is good to be reminded that not all repairs end in success.

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