JVC AV-48P575


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JVC AV-48P575

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HOPPSTER
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Aug 27, 2009, 5:13 AM

Post #1 of 15 (1451 views)
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JVC AV-48P575	Can't Post

hi i have a jcv av-48p575 tv when i turn it on get the blue led then the relay clicks then nothing i have changed the flyback, 2 resistors by the ic chips , the transistor by the flyback im at a lost any help would be appreciated thanks all

FUXER
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Aug 27, 2009, 8:04 AM

Post #2 of 15 (1446 views)
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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

Do you actually know how to check components- or do you just replace components in the vain hope"gotta be this faulty"- if so you will probably replace every component - then you may get lucky- why don't you take your tv to a tv repair guy- & get orf dem hops- you may end up like me!. Unimpressed

jts1957
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Aug 27, 2009, 10:46 AM

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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

Give "generic" info - Get "generic" response. Angelic

And I suppose you want us to tell you that: "that is caused by a defective part, location number: Q123, Number on Part: ABCcba, available at http//www.wxyz.electronics.com?

Does the transistor "by the flyback" have over 100 volts on its "collector?"
Couldn't resist:

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HOPPSTER
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Aug 27, 2009, 7:50 PM

Post #4 of 15 (1439 views)
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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

yes i do know how to check components i changed the flyback because it was cracked i changed the resistors because they were burt and the transistor was cracked also i changed the obvious because they were bad i not asking you to tell me whats wrong im looking for sugestions on what else could be suspect if all you can do is reply smart comments then dont reply i did not go through all the components yet just changed what looked bad first thanks

jts1957
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Aug 27, 2009, 8:02 PM

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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

You never answered my question: Does the transistor "by the flyback" have over 100 volts on its "collector?" Angelic

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HOPPSTER
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Aug 27, 2009, 11:15 PM

Post #6 of 15 (1429 views)
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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

im out of town till sat. i will check when i return and let you know thanks

FUXER
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Aug 29, 2009, 8:20 AM

Post #7 of 15 (1413 views)
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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

Jts- you gotta tell us- how you do them avaters!. Read an explanation on cr4 by sparkstation some time ago- but I'm basically lazy- seemed like a lot of work(&time!).

jts1957
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Sep 2, 2009, 12:56 AM

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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

CRT driver IC's common failure TDA6111Q.

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HOPPSTER
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Sep 2, 2009, 1:00 AM

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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

that would be on the middle crt correct thanks

jts1957
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Sep 2, 2009, 1:06 AM

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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

Could (and has) been ANY of them. Center one is most common. JVC put out a bulletin.

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HOPPSTER
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Sep 2, 2009, 1:14 AM

Post #11 of 15 (1390 views)
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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

thanks for the help

jts1957
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Sep 2, 2009, 1:23 AM

Post #12 of 15 (1387 views)
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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

You're welcome. Cool

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HOPPSTER
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Sep 2, 2009, 2:59 AM

Post #13 of 15 (1383 views)
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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

one more question what would be the best way to pull those boards to change those ic chips thanks

jts1957
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Sep 2, 2009, 12:17 PM

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Re: [HOPPSTER] JVC AV-48P575 [In reply to]	Can't Post

Check to see how the board is secured to the neck of the tube, some mfg. use clamps, some a blob of hot glue. Some use both.
Take a box cutter and CAREFULLY cut through glue even with where the socket and tube join. "Rocking/pulling" board off as you do so.

If neither method works, you could always take just a little "C-4" ... takes it right off!

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HOPPSTER
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Sep 2, 2009, 8:20 PM

Post #15 of 15 (1373 views)
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Re: [jts1957] JVC AV-48P575 [In reply to]	Can't Post

got them off waiting on parts thanks a bunch jts1957 the one on the left was cracked thanks

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