MicroGem DTV converter gets pretty hot
in [Design]
|
From: franksmith on 30 Jun 2010 15:39 I just bought a used MicroGem DTV converter at an auction. The price was right, and it works ok. But I noticed that it gets pretty hot compared to my other converters (other brands). I also read on several websites that these converters are known to die in a short time because of excess heat, and many were sent back to the manufacturer for replacement. Because of the way I bought it, there is no warranty. Rather than let it burn out, I would like to add a heat sink to whatever part(s) gets hot. Does anyone know what part(s) overheats? (I might also enlarge the tiny holes in the case, or maybe even install a small fan (like a CPU fan, if there's a proper voltage source to run a CPU fan). Thanks Frank
From: news on 30 Jun 2010 16:26 On Wed, 30 Jun 2010 14:39:01 -0500, franksmith(a)nospammie.com wrote: >I just bought a used MicroGem DTV converter at an auction. The price >was right, and it works ok. But I noticed that it gets pretty hot >compared to my other converters (other brands). I also read on >several websites that these converters are known to die in a short >time because of excess heat, and many were sent back to the >manufacturer for replacement. Because of the way I bought it, there >is no warranty. Rather than let it burn out, I would like to add a >heat sink to whatever part(s) gets hot. Does anyone know what part(s) >overheats? (I might also enlarge the tiny holes in the case, or maybe >even install a small fan (like a CPU fan, if there's a proper voltage >source to run a CPU fan). > >Thanks > >Frank The original power supply supply may not have the spare capacity to run even a small fan. You might be better served with a fan powered by a wall wart of the proper voltage. John
From: TTman on 30 Jun 2010 17:10 <franksmith(a)nospammie.com> wrote in message news:e57n26ljo6qt099srkbaoh8d8jo80uoms8(a)4ax.com... >I just bought a used MicroGem DTV converter at an auction. The price > was right, and it works ok. But I noticed that it gets pretty hot > compared to my other converters (other brands). I also read on > several websites that these converters are known to die in a short > time because of excess heat, and many were sent back to the > manufacturer for replacement. Because of the way I bought it, there > is no warranty. Rather than let it burn out, I would like to add a > heat sink to whatever part(s) gets hot. Does anyone know what part(s) > overheats? (I might also enlarge the tiny holes in the case, or maybe > even install a small fan (like a CPU fan, if there's a proper voltage > source to run a CPU fan). > > Thanks > > Frank > Run it with the lid off...... ( if that's feasible)
From: Jim Thompson on 30 Jun 2010 18:06 On Wed, 30 Jun 2010 22:10:59 +0100, "TTman" <someone.pc(a)ntlworld.com> wrote: > ><franksmith(a)nospammie.com> wrote in message >news:e57n26ljo6qt099srkbaoh8d8jo80uoms8(a)4ax.com... >>I just bought a used MicroGem DTV converter at an auction. The price >> was right, and it works ok. But I noticed that it gets pretty hot >> compared to my other converters (other brands). I also read on >> several websites that these converters are known to die in a short >> time because of excess heat, and many were sent back to the >> manufacturer for replacement. Because of the way I bought it, there >> is no warranty. Rather than let it burn out, I would like to add a >> heat sink to whatever part(s) gets hot. Does anyone know what part(s) >> overheats? (I might also enlarge the tiny holes in the case, or maybe >> even install a small fan (like a CPU fan, if there's a proper voltage >> source to run a CPU fan). >> >> Thanks >> >> Frank >> >Run it with the lid off...... ( if that's feasible) > Nothing quite beats a fan. ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | Obama: A reincarnation of Nixon, narcissistically posing in politically-correct black-face, but with fewer scruples.
From: Dave Platt on 30 Jun 2010 18:19
>>> Does anyone know what part(s) >>> overheats? (I might also enlarge the tiny holes in the case, or maybe >>> even install a small fan (like a CPU fan, if there's a proper voltage >>> source to run a CPU fan). >>Run it with the lid off...... ( if that's feasible) >Nothing quite beats a fan. Enhanced convection cooling can also be worthwhile... i.e. a cardboard "chimney" seated around the existing ventilation holes. This trick was used to cool the original Macintosh and Fat Mac, which had no fan and whose power supply really didn't have enough reserve current capacity to run one. -- Dave Platt <dplatt(a)radagast.org> AE6EO Friends of Jade Warrior home page: http://www.radagast.org/jade-warrior I do _not_ wish to receive unsolicited commercial email, and I will boycott any company which has the gall to send me such ads! |