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southernpridesd
Joined: 22 Apr 2008
Posts: 16
Location: Nashville
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 Posted: Tue Apr 22, 2008 9:57 pm Post subject: Mitsubishi VS-5051 no picture |
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i recently bought this tv. when its working properly it works great and the picture is really good for a tv that was made in 1995. but sometimes the picture goes out. still have sound but no picture. sometimes it works all day no problem. other times it doesnt work at all?
i havent found anything for this exact tv. but through my searches i have found alot of things that sound like what my problem is. i am a mechanic but not a tv repair person. i would like to try and fix this beast on my own. but i dont understand all the terms and abreviations. maybe some of yall can help me? or maybe a picture step by step tutorial?
thanks in advance,
Josh |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2580
Location: Overland Park, KS
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| Posted: Wed Apr 23, 2008 8:08 am Post subject: |
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| are the CRT filaments glowing? |
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southernpridesd
Joined: 22 Apr 2008
Posts: 16
Location: Nashville
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| Posted: Wed Apr 23, 2008 5:26 pm Post subject: |
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| the three tubes behind the speaker grill are glowing orange but very dimly |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2580
Location: Overland Park, KS
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| Posted: Thu Apr 24, 2008 6:35 am Post subject: |
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Check the connections around the vertical IC401 (LA7845)
if it checks out OK, I would replace it. |
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southernpridesd
Joined: 22 Apr 2008
Posts: 16
Location: Nashville
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| Posted: Thu Apr 24, 2008 5:43 pm Post subject: |
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| hey man im sorry but im not sure what that is.... ill check it as soon as i get home if you can describe what im lookin for. thanks |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2580
Location: Overland Park, KS
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| Posted: Thu Apr 24, 2008 5:52 pm Post subject: |
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its a chip that is attached to a heatsink. on the board it will will have the label IC401. on the chip itself will be the LA7845
if you want to replace it, you'd order an LA7845 |
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southernpridesd
Joined: 22 Apr 2008
Posts: 16
Location: Nashville
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| Posted: Thu Apr 24, 2008 6:05 pm Post subject: |
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| ok so this will be on the main board that spans like the entire bottom of the tv? what do i need to do to not be electricuted while removing it from the tv housing for a closer inspection? |
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kuhurdler
Joined: 28 Dec 2006
Posts: 2580
Location: Overland Park, KS
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| Posted: Thu Apr 24, 2008 10:02 pm Post subject: |
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| read all the safety labels on your TV, and the sticky post at the top of this forum on not killing yourself |
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southernpridesd
Joined: 22 Apr 2008
Posts: 16
Location: Nashville
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| Posted: Thu Apr 24, 2008 10:09 pm Post subject: |
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| i have and of course they say "dont mess with me unless your trained" ive been zapped by ignition coils on cars and ive taken a hit from 220 single phase before....... lemme tell you it wakes you up quick. |
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southernpridesd
Joined: 22 Apr 2008
Posts: 16
Location: Nashville
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| Posted: Fri Apr 25, 2008 5:47 pm Post subject: |
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| welp i re-soldiered that.... and its alive for now.... i hope its fixed for good ill let yall know after this weekend.... THANKS!!!!!! |
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