Comments for Electronics Repair And Technology News https://jestineyong.com Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Sun, 23 Aug 2026 23:11:07 +0000 hourly 1 https://wordpress.org/?v=5.4.21 Comment on Completed Another Higher Advanced Electronics Repair Level 3 Course by Jestine Yong https://jestineyong.com/completed-another-higher-advanced-electronics-repair-level-3-course-6/comment-page-1/#comment-459359 Sun, 23 Aug 2026 23:11:07 +0000 https://jestineyong.com/?p=37917#comment-459359 In reply to Jim.

Hi Jim,
Thanks.

Jestine

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]]> Comment on Completed Another Higher Advanced Electronics Repair Level 3 Course by Jim https://jestineyong.com/completed-another-higher-advanced-electronics-repair-level-3-course-6/comment-page-1/#comment-459358 Sun, 23 Aug 2026 16:07:06 +0000 https://jestineyong.com/?p=37917#comment-459358 Congratulations Everyone!

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]]> Comment on No Schematic? Don’t Worry, Here Is A Way To Solve – PHOENIX Open Care Warmer OCW100 by Parasuraman S https://jestineyong.com/no-schematic-dont-worry-here-is-a-way-to-solved-phoenix-open-care-warmer-ocw100/comment-page-1/#comment-459356 Sun, 23 Aug 2026 10:36:23 +0000 https://jestineyong.com/?p=37887#comment-459356 In reply to Albert van Bemmelen.

Many thanks, I have saved this also and shall try as and when I get back to it.

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]]> Comment on No Schematic? Don’t Worry, Here Is A Way To Solve – PHOENIX Open Care Warmer OCW100 by Parasuraman S https://jestineyong.com/no-schematic-dont-worry-here-is-a-way-to-solved-phoenix-open-care-warmer-ocw100/comment-page-1/#comment-459355 Sun, 23 Aug 2026 10:35:56 +0000 https://jestineyong.com/?p=37887#comment-459355 In reply to Albert van Bemmelen.

Many thanks, I have saved this also and shall try as and when I get back to it.

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]]> Comment on Revisit Of LED TV-32PFL3305-V7 After One Month – The Symptoms Of Complaints Can Be Deceptive by Andrea Del Corso https://jestineyong.com/revisit-of-led-tv-32pfl3305-v7-after-one-month-the-symptoms-of-complaints-can-be-deceptive/comment-page-1/#comment-459354 Sun, 23 Aug 2026 10:09:12 +0000 https://jestineyong.com/?p=37792#comment-459354 Ma che pazienza...Bravo!!
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Wow, what patience... Well done!!

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]]> Comment on No Schematic? Don’t Worry, Here Is A Way To Solve – PHOENIX Open Care Warmer OCW100 by Albert van Bemmelen https://jestineyong.com/no-schematic-dont-worry-here-is-a-way-to-solved-phoenix-open-care-warmer-ocw100/comment-page-1/#comment-459353 Sun, 23 Aug 2026 08:40:40 +0000 https://jestineyong.com/?p=37887#comment-459353 In reply to Albert van Bemmelen.

Additional info: Reading bios or processor chips IN-CIRCUIT often fails simply because the Vcc that comes from your 6 or 10 pin ISP cable and goes to the attached board also drives all other parts simultaneous in your attached circuit. Which may cause databus conflicts or erratic behavior that blocks reading out your data correctly, which shows when you Verify the data in your computer buffer to the data still present in your bios chip or processor chip, when it fails to confirm they are identical!
This In-circuit problem when for instance using a mini programmer like the CH341 with its 8 pin wire clip easily is avoided by cutting the Vcc pin 8 wire on the clip. And then simply feed the board with the intended chip to read-out or program with its original power supply. This then always fixes the Verify failing issue and your read data is okay!

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]]> Comment on No Schematic? Don’t Worry, Here Is A Way To Solve – PHOENIX Open Care Warmer OCW100 by Albert van Bemmelen https://jestineyong.com/no-schematic-dont-worry-here-is-a-way-to-solved-phoenix-open-care-warmer-ocw100/comment-page-1/#comment-459352 Sun, 23 Aug 2026 07:40:20 +0000 https://jestineyong.com/?p=37887#comment-459352 In reply to Albert van Bemmelen.

Interesting read here how to program AVR chips with the CH341 mini programmer: https://ericdraken.com/avr-amtel-attiny-ch341a-isp-programmer/
There even is a CH341 to AVRdude patched version support (fullspeed and bitbang) for Windows WCH official driver and Linux (based on Alexey Sadkov patch and WinChipHead sources) here: https://github.com/maxxproff/avrdude-ch341
or this one here: https://github.com/Trel725/chavrprog

PS: on page 237 of the ATMEGA8535 datasheet it mentions this => The ATmega8535 provides six Lock bits which can be left unprogrammed (“1”) or can be programmed (“0”) to obtain the additional features listed in Table 97. The Lock bits can only be erased to “1” with the Chip Erase command.

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]]> Comment on The Inside Of A USB Portable Rechargeable Soldering Iron by Parasuraman S https://jestineyong.com/the-inside-of-a-usb-portable-rechargeable-soldering-iron/comment-page-1/#comment-459351 Sun, 23 Aug 2026 06:33:18 +0000 https://jestineyong.com/?p=37896#comment-459351 In reply to Imoudu.O.

Many thanks for your comments. Yes, you should go for one.

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]]> Comment on The Inside Of A USB Portable Rechargeable Soldering Iron by Parasuraman S https://jestineyong.com/the-inside-of-a-usb-portable-rechargeable-soldering-iron/comment-page-1/#comment-459350 Sun, 23 Aug 2026 06:31:50 +0000 https://jestineyong.com/?p=37896#comment-459350 In reply to Mark J.

Ha! Ha! Like minded people, though living in different parts of the world! Many thanks for your comments, dear Mark!

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]]> Comment on No Schematic? Don’t Worry, Here Is A Way To Solve – PHOENIX Open Care Warmer OCW100 by Parasuraman S https://jestineyong.com/no-schematic-dont-worry-here-is-a-way-to-solved-phoenix-open-care-warmer-ocw100/comment-page-1/#comment-459349 Sun, 23 Aug 2026 06:29:27 +0000 https://jestineyong.com/?p=37887#comment-459349 In reply to Mark J.

Many thanks, dear Mark!

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