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	<title type="html"><![CDATA[ChipMusic.org - Backlight/bivert problem DMG]]></title>
	<link rel="self" href="https://chipmusic.org:80/forums/feed/atom/topic/19598/"/>
	<updated>2018-07-09T09:28:40Z</updated>
	<generator>PunBB</generator>
	<id>https://chipmusic.org/forums/topic/19598/backlightbivert-problem-dmg/</id>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/258349/#p258349"/>
			<content type="html"><![CDATA[<p>ok, hope you done this fix, i have an issue with the hex vibist chip also, take a look:<br /><a href="https://chipmusic.org/forums/post/258348/#p258348" target="_blank">https://chipmusic.org/forums/post/258348/#p258348</a></p>]]></content>
			<author>
				<name><![CDATA[zensir]]></name>
				<uri>https://chipmusic.org/zensir</uri>
			</author>
			<updated>2018-07-09T09:28:40Z</updated>
			<id>https://chipmusic.org/forums/post/258349/#p258349</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252424/#p252424"/>
			<content type="html"><![CDATA[<p>Haven&#039;t done the fix yet.</p>]]></content>
			<author>
				<name><![CDATA[irony7]]></name>
				<uri>https://chipmusic.org/irony7</uri>
			</author>
			<updated>2017-04-26T11:20:25Z</updated>
			<id>https://chipmusic.org/forums/post/252424/#p252424</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252423/#p252423"/>
			<content type="html"><![CDATA[<p>did you fix this? i think i have same issue. How did it go?</p>]]></content>
			<author>
				<name><![CDATA[zensir]]></name>
				<uri>https://chipmusic.org/zensir</uri>
			</author>
			<updated>2017-04-26T10:44:35Z</updated>
			<id>https://chipmusic.org/forums/post/252423/#p252423</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252304/#p252304"/>
			<content type="html"><![CDATA[<div class="quotebox"><cite>catskull wrote:</cite><blockquote><p>Here&#039;s a thing I had an issue with a while back: <a href="http://chipmusic.org/forums/topic/18845/help-bivert-mod-only-shows-two-shades/" target="_blank">http://chipmusic.org/forums/topic/18845 &#133; wo-shades/</a></p><p>Note where I cut the traces. Make sure you&#039;re not having the same issue.</p></blockquote></div><br /><p>Tha nk you for that link, Catskull, looks to be exactly the same problem.&nbsp; As soon as I get home from work I&#039;ll gewt my head around it and do the fix.&nbsp; <img src="https://chipmusic.org/forums/img/smilies/smile.png" width="15" height="15" alt="smile" /></p>]]></content>
			<author>
				<name><![CDATA[irony7]]></name>
				<uri>https://chipmusic.org/irony7</uri>
			</author>
			<updated>2017-04-20T06:46:58Z</updated>
			<id>https://chipmusic.org/forums/post/252304/#p252304</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252292/#p252292"/>
			<content type="html"><![CDATA[<p>Here&#039;s a thing I had an issue with a while back: <a href="http://chipmusic.org/forums/topic/18845/help-bivert-mod-only-shows-two-shades/" target="_blank">http://chipmusic.org/forums/topic/18845 &#133; wo-shades/</a></p><p>Note where I cut the traces. Make sure you&#039;re not having the same issue.</p>]]></content>
			<author>
				<name><![CDATA[catskull]]></name>
				<uri>https://chipmusic.org/catskull</uri>
			</author>
			<updated>2017-04-19T21:40:57Z</updated>
			<id>https://chipmusic.org/forums/post/252292/#p252292</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252291/#p252291"/>
			<content type="html"><![CDATA[<p>Understood, Apeshit. And it makes a lot of sense.&nbsp; I&#039;ll do your suggestion with a lead first, but will at the same time check out moving the board to tge other side of the LCD pcb.</p>]]></content>
			<author>
				<name><![CDATA[irony7]]></name>
				<uri>https://chipmusic.org/irony7</uri>
			</author>
			<updated>2017-04-19T21:34:14Z</updated>
			<id>https://chipmusic.org/forums/post/252291/#p252291</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252289/#p252289"/>
			<content type="html"><![CDATA[<p>I never said they shouldn&#039;t use a PCB. It&#039;s just mounted in a bad spot. Of course it will work, but it&#039;s bad practice to mount components under such a vulnerable spot. You could effectively use up half the space and still mount it on the back of the PCB.</p>]]></content>
			<author>
				<name><![CDATA[Apeshit]]></name>
				<uri>https://chipmusic.org/Apeshit</uri>
			</author>
			<updated>2017-04-19T21:19:08Z</updated>
			<id>https://chipmusic.org/forums/post/252289/#p252289</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252288/#p252288"/>
			<content type="html"><![CDATA[<div class="quotebox"><cite>Apeshit wrote:</cite><blockquote><p>Just keep them well trimmed, since that kit is mounted right under the ribbon cable carrying the high voltage for the LCD.</p></blockquote></div><p>Will do.</p><div class="quotebox"><cite>Apeshit wrote:</cite><blockquote><p>These kits really should be designed to be mounted on the back of the PCB...</p></blockquote></div><p>I&#039;ve had success biverting with chips before, it&#039;s just that the pcb seem are so much sexier and take up less space.</p>]]></content>
			<author>
				<name><![CDATA[irony7]]></name>
				<uri>https://chipmusic.org/irony7</uri>
			</author>
			<updated>2017-04-19T19:50:03Z</updated>
			<id>https://chipmusic.org/forums/post/252288/#p252288</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252287/#p252287"/>
			<content type="html"><![CDATA[<div class="quotebox"><cite>irony7 wrote:</cite><blockquote><p>I will do it,&nbsp; Apeshit!&nbsp; Tried to reflow the solder through the the holes to ensure contact with the pads underneath, but that is a definite possible culprit.</p></blockquote></div><p>Just keep them well trimmed, since that kit is mounted right under the ribbon cable carrying the high voltage for the LCD.</p><p>These kits really should be designed to be mounted on the back of the PCB...</p>]]></content>
			<author>
				<name><![CDATA[Apeshit]]></name>
				<uri>https://chipmusic.org/Apeshit</uri>
			</author>
			<updated>2017-04-19T19:42:44Z</updated>
			<id>https://chipmusic.org/forums/post/252287/#p252287</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252286/#p252286"/>
			<content type="html"><![CDATA[<p>I will do it,&nbsp; Apeshit!&nbsp; Tried to reflow the solder through the the holes to ensure contact with the pads underneath, but that is a definite possible culprit.</p>]]></content>
			<author>
				<name><![CDATA[irony7]]></name>
				<uri>https://chipmusic.org/irony7</uri>
			</author>
			<updated>2017-04-19T19:39:47Z</updated>
			<id>https://chipmusic.org/forums/post/252286/#p252286</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Re: Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252285/#p252285"/>
			<content type="html"><![CDATA[<p>Does the installation really not call for pins to be put through the pads? That&#039;s super janky. It&#039;s probably just not making full contact. Try adding a metal lead through the pads. Clip one off of a resistor or LED or something.</p>]]></content>
			<author>
				<name><![CDATA[Apeshit]]></name>
				<uri>https://chipmusic.org/Apeshit</uri>
			</author>
			<updated>2017-04-19T19:35:42Z</updated>
			<id>https://chipmusic.org/forums/post/252285/#p252285</id>
		</entry>
		<entry>
			<title type="html"><![CDATA[Backlight/bivert problem DMG]]></title>
			<link rel="alternate" href="https://chipmusic.org/forums/post/252284/#p252284"/>
			<content type="html"><![CDATA[<p>I did a backlight and bivert mod on A DMG-01, using a Deadpan Robot backlight kit and a Hand Held Legend pcb. After modding, all grey tones have disappeared, as shown in the following image:</p><p><a href="http://smg.photobucket.com/user/marineboy/media/20170419_192617_zpsej1cgvht.jpg.html" target="_blank"><a class="postimg" href="http://img.photobucket.com/albums/v720/marineboy/20170419_192617_zpsej1cgvht.jpg" title="http://img.photobucket.com/albums/v720/marineboy/20170419_192617_zpsej1cgvht.jpg" id="forum_image_51004727"><img src="http://img.photobucket.com/albums/v720/marineboy/20170419_192617_zpsej1cgvht.jpg" /></a></a></p><p>The connections on the bivert pcb seem correct according to HHL&#039;s instructions, can read any short circuits across the pins and the ribbon cable seems properly seated. Image of the pcb here:</p><br /><p><a href="http://smg.photobucket.com/user/marineboy/media/20170419_192801_zpsrlugtm2m.jpg.html" target="_blank"><a class="postimg" href="http://img.photobucket.com/albums/v720/marineboy/20170419_192801_zpsrlugtm2m.jpg" title="http://img.photobucket.com/albums/v720/marineboy/20170419_192801_zpsrlugtm2m.jpg" id="forum_image_20769413"><img src="http://img.photobucket.com/albums/v720/marineboy/20170419_192801_zpsrlugtm2m.jpg" /></a></a></p><br /><p>Before I pull the bivert pcb to test if the system is otherwise working properly, I&#039;ve gotta ask - has anyone else run into this problem, and, if so, any ideas on the cause?</p>]]></content>
			<author>
				<name><![CDATA[irony7]]></name>
				<uri>https://chipmusic.org/irony7</uri>
			</author>
			<updated>2017-04-19T18:24:45Z</updated>
			<id>https://chipmusic.org/forums/post/252284/#p252284</id>
		</entry>
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