[TechAssist] Re: Sony KP53S35 Chassis-SCC-N22B-A
- From: Ed Gaidies <teltek@xxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 10 Mar 2005 19:27:17 -0500
So we are suspecting that it is a bad Red CRT. Right?
Now...has anyone ever tried tried clearing the short with a Sencore CR70?
-Ed-
Ed Gaidies
Tel-Tek Electronics
Est-1969
Ontario/Canada
teltek@xxxxxxxxxx
> From: Larry E <videotech@xxxxxxxxxxxx>
> Reply-To: <techassist@xxxxxxxxxxxxx>
> Date: Thu, 10 Mar 2005 17:58:21 -0500
> To: <techassist@xxxxxxxxxxxxx>
> Subject: [TechAssist] Re: Sony KP53S35 Chassis-SCC-N22B-A
>
> Ed, Jim is right, no IK pulse return if the red cathode isn`t active, don`t
> know
> what I was thinking (old guy brain fart ?) I have a description of the whole
> circuit
> from one of the Sony trainers if I can find it I can send it to you, (rather
> long) but
> if the red crt is bad the customer probably won`t fix it anyway, sorry for
> the
> mis-information, Larry E
>
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
> ----- Original Message -----
> From: "Jim Myers" <jr.myers@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, March 10, 2005 2:40 PM
> Subject: [TechAssist] Re: Sony KP53S35 Chassis-SCC-N22B-A
>
>
>> With the red anode lead pulled you should have IK blanking and no
>> picture because the red CRT can't light up! If the set stays on and has
>> sound and HV when the red anode lead is pulled but shuts down and burps
>> when it is connected then you have a bad red CRT. Be careful when you
>> try to remove the red neck board, the neck may come out with it.
>>
>>
>> ********************************
>> Since 1972 *
>> Jim Myers *
>> Telrad Electronics *
>> Fort Wayne Indiana *
>> ********************************
>>
>>
>> Larry E wrote:
>>> Ed, sounds like you may have 2 problems, with the red anode out, your
>>> getting
>>> a constant blink code right? That indicates jungle or IK circuit video
> path,
>>> once
>>> you attatch the red anode the set shuts down so obviously either the HV
>>> splitter
>>> or the red tube is drawing too much current, I would leave out the red
>>> anode for the
>>> time being, turn up the screens for the green and blue to see if it is
> an IK
>>> problem,
>>> once you get those two tubes lit you can then remove either the green or
>>> blue anode
>>> insert the red anode in that slot of the HV splitter and if the set
> still
>>> shuts down it
>>> has to be the red tube, hope this helps, Larry E
>>>
>>> Larry Eastman
>>> American TV & Electronics
>>> Crystal River, Fl. 34428
>>> ----- Original Message -----
>>> From: "Ed Gaidies" <teltek@xxxxxxxxx>
>>> To: <techassist@xxxxxxxxxxxxx>
>>> Sent: Thursday, March 10, 2005 2:00 PM
>>> Subject: [TechAssist] Re: Sony KP53S35 Chassis-SCC-N22B-A
>>>
>>>
>>>
>>>> I may have mis-stated.
>>>> The 2nd anode lead had been pulled out of the HV splitter, (RED CRT),
>>>> which gave me sound.
>>>> But after I re-inserted it...the set just blurps in one second
> intervals.
>>>> So basically, returning it to the way it should be, before someone
>>>> (customer) had pulled the anode lead for the Red CRT...there is no
>>>> sound...just blurp....blurp....blurp...;-).
>>>>
>>>> -Ed-
>>>>
>>>> gulftech@xxxxxxxx wrote:
>>>>
>>>>
>>>>> Ed,
>>>>>
>>>>> Don't know about the Sony PTV's, but on the direct view TV's IK
> shutdown
>>>>> only affects the video, not the audio. Sony has a lot of protection
>>>>> ckts. Flashing power light indicates some failure.
>>>>>
>>>>> Does it flash constantly or, say five flashes, pause, repeat? There is
> a
>>>>> code for that.
>>>>>
>>>>> Maybe that would be a good start.
>>>>>
>>>>> Good luck,
>>>>>
>>>>>
>>>>> Ken Smith
>>>>> Gulf Technical Services
>>>>> 3034 Gulf Breeze Parkway
>>>>> Gulf Breeze, FL 32563
>>>>> 850-934-8324 (Voice), 850-932-0819 (fax)
>>>>>
>>>>> On Thu, 10 Mar 2005 12:52:46 -0500 Ed Gaidies <teltek@xxxxxxxxx>
> writes:
>>>>>
>>>>>
>>>>>
>>>>>> IK shut down shouldn't kill the whole set? should it?
>>>>>>
>>>>>> -Ed-
>>>>>>
>>>>>> LeRoy Westlund wrote:
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Ed,
>>>>>>> The set could be in IK shut down.
>>>>>>> Look directly into the tubes, and you will see a horz line at the
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> very
>>>>>>
>>>>>>
>>>>>>
>>>>>>> bottom of the raster on each tube. If this is the case, one of the
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> CRTs
>>>>>>
>>>>>>
>>>>>>
>>>>>>> could be weak. Start with the blue tube first, and turn the screen
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> up a
>>>>>>
>>>>>>
>>>>>>
>>>>>>> little bit at a time, then do the same with the other 2 tubes. If
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> one is
>>>>>>
>>>>>>
>>>>>>
>>>>>>> weak, it should come out of IK shut down.
>>>>>>>
>>>>>>> Also, check close for coolant leakage, most likely the blue tube.
>>>>>>> Check for coolant on the ckt. boards directly under the leaky tube.
>>>>>>> (Very common problem.)
>>>>>>>
>>>>>>> HTH,
>>>>>>> LLW
>>>>>>>
>>>>>>> LeRoy Westlund
>>>>>>> Westlund TV & Electronics
>>>>>>> 97 North Main " I forgot,..to
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> remember,..
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Centerfield, UT 84622-0087 to forget "
>>>>>>> Ph./Fax 435-528-3822
>>>>>>> mailto:LLW@xxxxxxxxxx
>>>>>>>
>>>>>>> -----Original Message-----
>>>>>>> From: Ed Gaidies <teltek@xxxxxxxxx>
>>>>>>> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
>>>>>>> Date: Thursday, March 10, 2005 9:44 AM
>>>>>>> Subject: [TechAssist] Sony KP53S35 Chassis-SCC-N22B-A
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>> Guys;
>>>>>>>> Need some advice on this R/P set.
>>>>>>>> Customer brought it in, and said he had sound...but no picture.
>>>>>>>> When I tried it...he was right, but power light was continually
>>>>>>>> flashing, but did have sound.
>>>>>>>> When I pulled the back off, I noticed the Anode lead for the Red
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>> CRT had
>>>>>>
>>>>>>
>>>>>>
>>>>>>>> been pulled from the Splitter. I re-inserted it, and now when I
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>> turn it
>>>>>>
>>>>>>
>>>>>>
>>>>>>>> on...set tries to start, but just blurps about every second. By
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>> pulling
>>>>>>
>>>>>>
>>>>>>
>>>>>>>> the red 2nd anode...does this point to a bad splitter or bad Red
>>>>>>>> CRT...or what?
>>>>>>>>
>>>>>>>> This Sony is my first of this breed. Thanks.
>>>>>>>>
>>>>>>>> -Ed-
>>>>>>>>
>>>>>>>> --
>>>>>>>> Ed Gaidies
>>>>>>>> Tel-Tek Electronics
>>>>>>>> Ontario-Canada
>>>>>>>>
>>>>>>>> teltek3@xxxxxxxxxxxx
>>>>>>>> teltek@xxxxxxxxx
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>
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>>>>>> --
>>>>>> Ed Gaidies
>>>>>> Tel-Tek Electronics
>>>>>> Ontario-Canada
>>>>>>
>>>>>> teltek3@xxxxxxxxxxxx
>>>>>> teltek@xxxxxxxxx
>>>>>>
>>>>>>
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>>>> --
>>>> Ed Gaidies
>>>> Tel-Tek Electronics
>>>> Ontario-Canada
>>>>
>>>> teltek3@xxxxxxxxxxxx
>>>> teltek@xxxxxxxxx
>>>>
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