[TechAssist] Re: Need some help on a Sony KV-32XBR400
- From: Wayne Vanaman <Wayne@xxxxxxxxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 03 Dec 2005 05:22:04 -0600
Ed:
I have had intermittent problems with the regulator ICs, MCZ3001D.
There are two on that chassis. First choice is the one towards the
center of the set. See if those voltages come up when you hit power.
Wayne Vanaman
Omega Electronics
6904 W Fairfield Dr
Pensacola, Fl. 32506-3310
Wayne@xxxxxxxxxxxxxxxxxxxxx
WWW.PensacolaTVRepair.Com
850-456-5995 voice
850-458-6369 fax
Tel-Tek Electronics wrote:
> Damon;
> That all makes sense to me. I don't presume it was a Vertical Failure, since
> he left it running for 2 months. and never mentioned a vertical problem.
> I suspect it will end up in the "start/run" section such as Regulator. But
> since I'm asking...and not helping..all scenarios will work.
>
> As I mentioned...this set has way too much circuitry, for my liking. I have
> pulled the Deflection board, gone over it with a Magnifier, and all look OK.
> Resoldered anything "questionable"..to no avail.
>
> Sony has always been my weak point, till I started with TechAssist, and
> found Tech's that see them on a regular basis, the "Beast" was fixable.
>
> How many manufacturers take the trouble to defeat the "Video" with an I-K
> circuit, so if the CRT becomes "questionable" cut the Video.
>
> Good for Sony...Bad for the Customer. (And the Technician).
>
> This set was manufactured in 2000, and presume it's going to be a
> "Regulator" "Cap" problem...but I'm searching for "expertise".
>
> Not much on this set...in Winstips, Jeff's Database, or a couple of other
> Databases I use.
>
> -Ed-
>
>
> "Seasons Greetings" .. " Merry Christmas" and "Happy New Year" has worked
> for years. Still works for me.
>
> Tel-Tek Electronics
> Ontario-Canada
>
> teltek3@xxxxxxxxxxxx
> teltek@xxxxxxxxx
> ----- Original Message -----
> From: "DAMON BRUNGER" <damoneb@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Friday, December 02, 2005 6:39 PM
> Subject: [TechAssist] Re: Need some help on a Sony KV-32XBR400
>
>
>
>>Ok, 4 means Vert failure, 7 means.....what?
>>My experience has been the vert failure can actually show you the
>>Horiz/IHVT
>>is the problem since it supplies the power to the Vert ciruit.
>>
>>And 7 means the Horiz Deflection has stopped......
>>Don't look for shorted Horiz parts, look for something that will stop the
>>Horiz signal from being created.
>>Video Jungle, 9 V supply, Horiz osc, bad connects from jungle to the H
>>driver.....
>>
>>Damon B
>>Telrad Electronics
>>Fort Wayne IN
>>----- Original Message -----
>>From: "Tel-Tek Electronics" <teltek3@xxxxxxxxxxxx>
>>To: <techassist@xxxxxxxxxxxxx>
>>Sent: Friday, December 02, 2005 12:20 PM
>>Subject: [TechAssist] Need some help on a Sony KV-32XBR400
>>
>>
>>
>>>This thing has more parts to what I'm used to.
>>>Customer said the set would sometimes not start up, so he left it on 24/7
>>
>>and worked fine. About 2 month ago, when he was in, I told him "with price
>>of electricity" may be cheaper to have it fixed in the long run. Not sure
>>about that now.;-)
>>
>>> Problem with the "flashing" fault indicator, sometimes it will flah
>>>in
>>
>>series of 7, and if I turn it off, and back on, will flash series of 4.
>>According to Bob Waterman and others, this "flashing" is not always a true
>>indicatior.
>>
>>>When I power up, set makes a rattling sound, but I believe this is a
>>
>>modification on the degausing coil. Not concerned about that.
>>
>>>I hear a relay click on, then off. After about 5 seconds, I hear another
>>
>>Relay click, then standby light will flash either 4 or 7 times.
>>
>>>Sorry...not much to go on, H/O transistor is not shorted, so if anyone
>>>has
>>
>>any tips for caps in Regulator, or other fixes along this line would be
>>appreciated.
>>
>>>I have the manual,but apparently not the experience on this one. Plus I'm
>>
>>working at Floor Level, which doesn't make it any easier. Thing weighs a
>>ton, and have had no help getting it up on the bench. Some of you older
>>techs can probably relate to this.....Have you ever noticed all our
>>"circle"
>>of friends seem to have Heart or Back trouble. They can lift that cup of
>>coffee, but anything over 20 pounds creates problems.;-)
>>
>>>Thanks;
>>>
>>>-Ed-
>>>Tel-Tek Electronics
>>>Ontario-Canada
>>>
>>>teltek3@xxxxxxxxxxxx
>>>--------------------------------------------------------------------------
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