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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Sat Jan 31, 2015 11:31 pm Post subject: |
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i will pull the amp board out once again and test the transistors, luckily i ordered more than just the one.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Sun Feb 01, 2015 12:00 am Post subject: |
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i hope he does keep at it Nashou66, but i will understand if he eventually gives up on me. i feel like if i just knew half of what mac knows i would have already gotten this up and working.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun Feb 01, 2015 12:01 am Post subject: |
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Try to see if you can find where that arc came from. Doing the adjustment would not of caused it.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Sun Feb 01, 2015 2:41 am Post subject: |
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it did not come from doing the adjustment, it came from me accidently touching something when the meter probe slipped.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun Feb 01, 2015 3:00 am Post subject: |
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| jgrice53 wrote: | | it did not come from doing the adjustment, it came from me accidently touching something when the meter probe slipped. |
Ahhhh, been there. Get out that file and put a nice sharp point on those probes. Almost never slip then.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Sun Feb 01, 2015 3:10 am Post subject: |
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Q424 is testing bad and possibly R485
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Sun Feb 01, 2015 3:33 am Post subject: |
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I've got .115 on emitter to collector and .115 collector to emitter with the DMM on diode check
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sun Feb 01, 2015 4:16 am Post subject: |
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| jgrice53 wrote: | | I've got .115 on emitter to collector and .115 collector to emitter with the DMM on diode check |
Yes. it looks ill, lol.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Mon Feb 02, 2015 3:51 pm Post subject: |
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okay mac, i am trying to go over this circuit for bad parts before placing an order so that i can order just once. R483 is reading 115 ohm in circuit, R458 is reading open while all the rest of the resistors in this circuit location are reading dead on 100 ohm. should i be looking at other parts that would cause R458 to read open or just replace it? the same with R485, it is reading 2.3k ohm and all the other resistors in this circuit location are exactly 1.2k ohm. it is coming off the emitter of Q424 that is testing defective. should i remove it and test or should i be looking for what is causing the incorrect reading. I am going to order them either way, i just am trying to make 1 order .
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Feb 02, 2015 4:40 pm Post subject: |
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Replace them. Anything that is reading off, replace. Also, since you are ordering, I would also order most of the caps in that circuit. Most look like very cheap price ones and sometimes it is easier to just replace them, then remove and test, especially the decoupling caps. That distortion has to still be considered,
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Mon Feb 02, 2015 5:56 pm Post subject: |
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yes, i already have them all in the list to be ordered
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Mon Feb 02, 2015 5:57 pm Post subject: |
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what are the de-coupling caps?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon Feb 02, 2015 6:33 pm Post subject: |
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Google it. 
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Tue Feb 03, 2015 4:02 pm Post subject: |
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i've got everything ordered through MCM, i will let you know when they get here and i get them installed....i am hoping by the end of the week.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Tue Feb 03, 2015 4:37 pm Post subject: |
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Sounds good.
Hey, is that liquidation center still open on the back road between Mullins and Marion?
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Tue Feb 03, 2015 6:34 pm Post subject: |
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are you talking about the one on the bypass? if it is, i am not sure if its open. the last time i went by there did not seem to be any activity there. like there had not been anyone there in a while.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Tue Feb 03, 2015 6:36 pm Post subject: |
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i was only in there 1 time and that was when it first opened. from what i remember they had these pallets of stuff, some of it good and some of it junk. almost like buying sight unseen.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Tue Feb 03, 2015 8:08 pm Post subject: |
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| jgrice53 wrote: | | are you talking about the one on the bypass? if it is, i am not sure if its open. the last time i went by there did not seem to be any activity there. like there had not been anyone there in a while. |
It was near the bypass but not on it. I bought a lot of stuff there when I was down there.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Tue Feb 03, 2015 8:38 pm Post subject: |
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i don't know of another liquidation center, but we might be talking about 2 different places. the one i am talking about was next to the road rescue building.
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jgrice53
Joined: 10 Dec 2014
Posts: 165
Location: marion, sc 29571
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| Posted: Tue Feb 03, 2015 8:43 pm Post subject: |
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the one that i am talking about is called the BARGAIN WAREHOUSE
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