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	<title>Blog</title>
	<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php" />
	<modified>2026-07-18T05:46:48Z</modified>
	<author>
		<name>Márton Miklós</name>
	</author>
	<copyright>Copyright 2026, Márton Miklós</copyright>
	<generator url="http://www.sourceforge.net/projects/sphpblog" version="0.5.1">SPHPBLOG</generator>
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	<entry>
		<title>DOT320 PDA pinout</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry260621-143932" />
		<content type="text/html" mode="escaped"><![CDATA[I have repaired a VTS air handler unit commanded by this PDA.<br />The cable was like this when I found it:<br /><br />Some trial and error led to the following pinout:<br /><br />PDA conn:<br />LCD is upwards<br />18 pin<br /><br />pin 1 left<br />1 green<br />2 purple  - VBAT<br />3 X<br />4 Brown<br />5 X GND<br />6 BLUE GND<br />7 X<br />8 X GND<br />9<br />10<br />11<br />12<br />13 black tx<br />14<br />15<br />16<br />17 VCC<br />18<br /><br />Maybe it will be useful for someone.]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry260621-143932</id>
		<issued>2026-06-21T00:00:00Z</issued>
		<modified>2026-06-21T00:00:00Z</modified>
	</entry>
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		<title>Érdi kutyás tábla</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry260330-140322" />
		<content type="text/html" mode="escaped"><![CDATA[Itt volt:<br /><a href="https://www.google.com/maps/place/47%C2%B025&#039;20.5%22N+18%C2%B053&#039;08.5%22E/@47.4224958" target="_blank" >https://www.google.com/maps/place/47%C2%B025&#039;20.5%22N+18%C2%B053&#039;08.5%22E/@47.4224958</a>,18.8859329,3a,75y,252.5h,82.31t/data=!3m8!1e1!3m6!1sOoxUZeMA_SVPqlilWdqDdg!2e0!5s20190701T000000!6shttps:%2F%2Fstreetviewpixels-pa.googleapis.com%2Fv1%2Fthumbnail%3Fcb_client%3Dmaps_sv.tactile%26w%3D900%26h%3D600%26pitch%3D7.6881557249066645%26panoid%3DOoxUZeMA_SVPqlilWdqDdg%26yaw%3D252.50196738331323!7i16384!8i8192!4m4!3m3!8m2!3d47.4223611!4d18.8856944?entry=ttu&amp;g_ep=EgoyMDI2MDMyNC4wIKXMDSoASAFQAw%3D%3D<br /><br />Google maps alapján 2019 után eltávolították.<br />]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry260330-140322</id>
		<issued>2026-03-30T00:00:00Z</issued>
		<modified>2026-03-30T00:00:00Z</modified>
	</entry>
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		<title>Saleae Logic 1.2.40 - Unable to &#039;dlopen&#039; so/dylib error on loading custom analyzer</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry250818-213328" />
		<content type="text/html" mode="escaped"><![CDATA[New lessons learned <a href="http://users.atw.hu/balubati/blog/index.php?entry=entry180710-141302" target="_blank" >after a 7 year old adventure</a>:<br /><br />The libanalyzer.so shipped in the appimage differ from what they have in <a href="https://github.com/saleae/AnalyzerSDK/tree/master/lib_x86_64" target="_blank" >their repo</a>.<br /><br />Extract the appimage with Logic-1.2.40-Linux.AppImage --appimage-extract<br /><br /> and link with the libanalyzer.so found in the extracted squashfs-root/usr/lib/ folder. Be careful about the case of the &#039;A&#039;: in the appimage it is lower case a....]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry250818-213328</id>
		<issued>2025-08-18T00:00:00Z</issued>
		<modified>2025-08-18T00:00:00Z</modified>
	</entry>
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		<title>MB 211 545 08 32 01 pinout</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry240912-212206" />
		<content type="text/html" mode="escaped"><![CDATA[Tried to repair an MB 211 545 08 32 01 trailer connector controller. Not much results, sharing the pinout discoveries with the posterity.<br /><img src="images/MB_211_545_08_32_01_pinout.jpg" width="500" height="391" border="0" alt="" /><br /><br />CAN looks to be operating at 40 kb/s]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry240912-212206</id>
		<issued>2024-09-12T00:00:00Z</issued>
		<modified>2024-09-12T00:00:00Z</modified>
	</entry>
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		<title>LG air conditioner power module troubleshooting</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry240707-201114" />
		<content type="text/html" mode="escaped"><![CDATA[I came across an inverter board from an LG ASUW1865DH0 outdoor unit.<br /><br />Someone tried to repair it but failed.<br /><br />It shown some manual soldering marks around the graetz bridges and the PFC IGBT but all looked good. <br /><br />The unit had a nice looking scheme in the cover of the wiring connectors:<br /><center><img src="images/LG_ASUW1865DH0_sheme.jpg" width="500" height="280" border="0" alt="" /></center><br /><br />By looking it more closely I realized that I have not disassembled the PFC Reactor coil out from the unit. Unfortunately starting the power supplies was not possible without it. <br /><br />Shorting the reactor coil would likely kill the PFC IGBT, however I have not too much mood to climb up and disassemble the coil. <br /><br />So I started to look after some old PC power supplies for a salvagable PFC coil, but I failed to find one even by looking around at several friends with similar interests. I  have had salvaged a PFC coil 15-20 years ago, but at some point  discarded it. <br /><br />Anyway one of my friends recommended that I could simply block the gate of the PFC IGBT from being driven and the power rails should came up.<br /><br />I did exactly this, and the DC link nicely went up. However no voltages were present on the low voltage side.<br />The low voltage rails were powered by this module:<br /><center><img src="images/LG_1515752_populated.jpg" width="500" height="478" border="0" alt="" /></center><br /><br />The board is very nicely equipped with silkscreen: we know that the low voltage rails is 15V. I looked around for schematics of the board, however it does not seems to be exists in the wild. <br /><br />I started to look for the 1515752 power module ID and in many places it was sold with URM1515-2B RM1515-2B PM1512-C2 UPM1512-C2. <br /><br />By looking up these partnumbers I managed to find an LG service manual which contained this schematic:<br /><center><img src="images/uRM1515-2B.png" width="500" height="292" border="0" alt="" /></center><br /><br />Aha, this is not a transformer but a complete SPMS potted into a transformer shape.<br /><br />The schematic power part very closely matches what I have.<br /><br />I could not resist to take apart the module. With some hot air gun I managed to dig out the PCB. <br />Unfortunately the some coil windings got damaged, so reparing it is out of question.<br />The module uses a different SPMS IC: TNY266 which is a lower power rated than the TNY268 which is in the uRM1515-2B.<br /><br /><center><img src="images/LG_1515752_disassembled.jpg" width="500" height="226" border="0" alt="" /><br /><img src="images/LG_1515752_top.jpg" width="500" height="478" border="0" alt="" /><br /><img src="images/LG_1515752_bottom.jpg" width="500" height="478" border="0" alt="" /></center><br /><br />The board/module has markings Tamura 4P-P1-10465C<br /><br />After looking about the Tamura corporation they website has a very similarly looking module called EPM:<br /><a href="https://www.tamuracorp.com/electronics/en/powermodule/" target="_blank" >https://www.tamuracorp.com/electronics/en/powermodule/</a><br /><center><img src="images/Tamura_EPM.png" width="500" height="222" border="0" alt="" /></center><br />]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry240707-201114</id>
		<issued>2024-07-07T00:00:00Z</issued>
		<modified>2024-07-07T00:00:00Z</modified>
	</entry>
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		<title>Entrematic Zen remote radio IC</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry240502-120716" />
		<content type="text/html" mode="escaped"><![CDATA[It is supposedly an Silicon labs Si4012-C1001<br />Marking (12C1) confirms it, pinout matches.<br /><br /><img src="images/IMG20240502115926.jpg" width="500" height="487" border="0" alt="" /><br /><img src="images/IMG20240502115938.jpg" width="500" height="487" border="0" alt="" /><br /><img src="images/SI4012.png" width="500" height="198" border="0" alt="" />]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry240502-120716</id>
		<issued>2024-05-02T00:00:00Z</issued>
		<modified>2024-05-02T00:00:00Z</modified>
	</entry>
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		<title>Ezért ne rakd sose a botmixer adaptert mosogatógépbe</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry240325-091926" />
		<content type="text/html" mode="escaped"><![CDATA[A napkerék fogaskerekei sajnos elolvadtak a tengelyeknél..<br /><br /><a href="javascript:openpopup('images/IMG20240325090352.jpg',2613,2384,false);"><img src="images/IMG20240325090352.jpg" width="500" height="456" border="0" alt="" /></a><br /><a href="javascript:openpopup('images/IMG20240325090401.jpg',2613,2544,false);"><img src="images/IMG20240325090401.jpg" width="500" height="487" border="0" alt="" /></a><br /><a href="javascript:openpopup('images/IMG20240325090431.jpg',3076,2322,false);"><img src="images/IMG20240325090431.jpg" width="500" height="377" border="0" alt="" /></a>]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry240325-091926</id>
		<issued>2024-03-25T00:00:00Z</issued>
		<modified>2024-03-25T00:00:00Z</modified>
	</entry>
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		<title>DRC320SH-7H800A motor details</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry231103-221401" />
		<content type="text/html" mode="escaped"><![CDATA[It took me a while to find a proper replacement motor (identical to the original) for a front brush of a Sencor SRV4250 hoover. Motor gearbox nr. BL500-T2<br /><br />No load current consumption at 12V: 15 mA<br />No load current consumption installed into the greased gearbox 12V: 25 mA<br />Stall current: 190 mA @ 12V<br /><br />Outer diameter: 32 mm<br />Shell length: 18 mm<br />Shaft diameter: 2 mm<br />Shaft length: 9,5 mm<br /><br />If you need one in Hungary drop me a message I have some for sale.<br />]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry231103-221401</id>
		<issued>2023-11-03T00:00:00Z</issued>
		<modified>2023-11-03T00:00:00Z</modified>
	</entry>
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		<title>UX-52 VFD frequency controller teardown images</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry230818-150130" />
		<content type="text/html" mode="escaped"><![CDATA[I bought one and opened up, to save you from doing that :D.<br /><br />tldr: no H bridge, no frequency modulation, just the oldschool phase dimming circuit with a Triac.<br /><br /><img src="images/20220720_090918.jpg" width="500" height="752" border="0" alt="" /><br /><br /><img src="images/20220720_090934.jpg" width="500" height="599" border="0" alt="" /><br /><br /><img src="images/20220720_090946.jpg" width="500" height="491" border="0" alt="" />]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry230818-150130</id>
		<issued>2023-08-18T00:00:00Z</issued>
		<modified>2023-08-18T00:00:00Z</modified>
	</entry>
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		<title>QTableView scrollToBottom anomaly</title>
		<link rel="alternate" type="text/html" href="http://balubati.userweb.hu:443/blog/index.php?entry=entry230221-203655" />
		<content type="text/html" mode="escaped"><![CDATA[Never call <a href="https://doc.qt.io/qt-6/qabstractitemview.html#scrollToBottom" target="_blank" >QTableView::scrolltoBottom</a> from slots connected to the model&#039;s <a href="https://doc.qt.io/qt-6/qabstractitemmodel.html#rowsInserted" target="_blank" >rowsInserted</a> signal because as the rows added they will start to appear partially:<br /><br /><img src="images/scrolltobottom_in_rowsinserted.png" width="500" height="110" border="0" alt="" /><br /><br />Connect your slots to the <a href="https://doc.qt.io/qt-6/qabstractscrollarea.html#verticalScrollBar" target="_blank" >QTableView::verticalScrollBar&#039;s</a> <a href="https://doc.qt.io/qt-6/qabstractslider.html#rangeChanged" target="_blank" >rangeChanged</a> signal<br /><br /><img src="images/Screenshot_20230220_211709.png" width="500" height="251" border="0" alt="" />]]></content>
		<id>http://balubati.userweb.hu:443/blog/index.php?entry=entry230221-203655</id>
		<issued>2023-02-21T00:00:00Z</issued>
		<modified>2023-02-21T00:00:00Z</modified>
	</entry>
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