Re: LM-2 burned a resistor inside 3 months old.
[Re: Clanton]
#2951105
08/06/21 03:42 PM
08/06/21 03:42 PM
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Joined: Jan 2003
Posts: 4,270
Morrow, OH
markz528
master
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master
Joined: Jan 2003
Posts: 4,270
Morrow, OH
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Looks like a ceramic capacitor to me............
67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......
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Re: LM-2 burned a resistor inside 3 months old.
[Re: Clanton]
#2951107
08/06/21 03:43 PM
08/06/21 03:43 PM
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Joined: Jan 2003
Posts: 2,915
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,915
A shed in England
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That's a Tantalum capacitor, they are polarity conscious.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: LM-2 burned a resistor inside 3 months old.
[Re: Tig]
#2951111
08/06/21 03:49 PM
08/06/21 03:49 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
OP
master
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OP
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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That's a Tantalum capacitor, they are polarity conscious. I was using the cigarette lighter power adaptor so IDK if it can get shorted inside.
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Re: LM-2 burned a resistor inside 3 months old.
[Re: Clanton]
#2951282
08/07/21 06:21 AM
08/07/21 06:21 AM
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Joined: Jan 2003
Posts: 2,915
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,915
A shed in England
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That's a Tantalum capacitor, they are polarity conscious. I was using the cigarette lighter power adaptor so IDK if it can get shorted inside. Is the top, two pin dark coloured block the I/P for the power supply? (I'm guessing it is since it's the only two pin socket). You may need to check the polarity of your cig lighter. Something tells me in the dark recesses of my mind, that they are wired reverse to what most manufacturers of cig lighter PSU adapters expect. But I could be wrong  . It's worth checking. HTH's 
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: LM-2 burned a resistor inside 3 months old.
[Re: Tig]
#2951301
08/07/21 09:30 AM
08/07/21 09:30 AM
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Joined: Feb 2005
Posts: 143
North America
kwikblownhemi
member
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member
Joined: Feb 2005
Posts: 143
North America
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That's a Tantalum capacitor, they are polarity conscious. I was using the cigarette lighter power adaptor so IDK if it can get shorted inside. Is the top, two pin dark coloured block the I/P for the power supply? (I'm guessing it is since it's the only two pin socket). You may need to check the polarity of your cig lighter. Something tells me in the dark recesses of my mind, that they are wired reverse to what most manufacturers of cig lighter PSU adapters expect. But I could be wrong . It's worth checking. HTH's You are correct, it's labelled Power. Interesting that there appears to be a reverse-polarity protection diode beside it. If the OP has been using the same cigarette lighter plug for three months, it probably isn't a case of reverse polarity. That capacitor, along with two others, a jumper and a resistor are post-production modifications.
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Re: LM-2 burned a resistor inside 3 months old.
[Re: kwikblownhemi]
#2951329
08/07/21 10:56 AM
08/07/21 10:56 AM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
OP
master
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OP
master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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That's a Tantalum capacitor, they are polarity conscious. I was using the cigarette lighter power adaptor so IDK if it can get shorted inside. Is the top, two pin dark coloured block the I/P for the power supply? (I'm guessing it is since it's the only two pin socket). You may need to check the polarity of your cig lighter. Something tells me in the dark recesses of my mind, that they are wired reverse to what most manufacturers of cig lighter PSU adapters expect. But I could be wrong . It's worth checking. HTH's You are correct, it's labelled Power. Interesting that there appears to be a reverse-polarity protection diode beside it. If the OP has been using the same cigarette lighter plug for three months, it probably isn't a case of reverse polarity. That capacitor, along with two others, a jumper and a resistor are post-production modifications. I have been using the same power port without trouble and yes the left plug is power but is a 4 prong.  
Last edited by Clanton; 08/07/21 11:01 AM.
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