[TechAssist] Re: Sony KV-32s20 No Audio or Video? flashing panel light continuously?Fixed!!
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 19 Dec 2005 08:43:16 -0500
tHE FULL DULL SCREEN HAD ME FOOLED.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, December 17, 2005 7:31 PM
Subject: [TechAssist] Re: Sony KV-32s20 No Audio or Video? flashing panel
light continuously?Fixed!!
> Yes Al, thank you very much. It is the vertical I.C. I unsoldered the I.C
> and checked the screen and the vertical deflection was collapsed but very
> bright. I had a NTE 1788 which is a cross for the vertical output and it
> works.
> I still have no audio(may have caused this myself) but will trouble shoot
> that circuit tomorrow. Thanks a million . Now I am sorry I did not check
> the
> voltages at the vertical output.
>
> Bruce.
>
>
> ----- Original Message -----
> From: "al m" <ampm@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Sunday, December 18, 2005 12:45 PM
> Subject: [TechAssist] Re: Sony KV-32s20 No Audio or Video? flashing panel
> light continuously?
>
>
>> Had the same thing and it turned out to be a bad vertical output. Was
>> wondering why no retrace and the vertical out was the answer.
>> Al Marquardt
>> ampm@xxxxxxx
>> Al Marquardt Electronic Repair
>> 206 W Main
>> Girardville Pa. 17935
>> ----- Original Message -----
>> From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
>> To: <techassist@xxxxxxxxxxxxx>
>> Sent: Saturday, December 17, 2005 12:00 PM
>> Subject: [TechAssist] Re: Sony KV-32s20 No Audio or Video? flashing panel
>> light continuously?
>>
>>
>>> Yes Al, I am not familiar with this condition., hoping some one has had
>>> this
>>> problem before. With no signal to the T.V and the screen control up all
>>> the
>>> way I see a weak blue deflection with a faint green horiz bar about 4"
>>> wide
>>> on right side of CRT. The filament voltage is good 24VPP. I also forgot
>>> to
>>> mention that the CRT is OK, I did check it originally thinking this was
>>> the
>>> problem. I will have to order and try the jungle I.C, must be the
>>> problem?
>>> It is not the price of the part as much as the wait. I also checked the
>>> blink codes and it said could be jungle I.C or IK circuit when the panel
>>> light blinks continuously.
>>> thanks
>>> Bruce
>>>
>>> ----- Original Message -----
>>> From: "al m" <ampm@xxxxxxx>
>>> To: <techassist@xxxxxxxxxxxxx>
>>> Sent: Sunday, December 18, 2005 11:11 AM
>>> Subject: [TechAssist] Re: Sony KV-32s20 No Audio or Video? flashing
>>> panel
>>> light continuously?
>>>
>>>
>>>> With the screen control all the way up, shouldn't you get retrace lines
>>>> with
>>>> white raster?
>>>> Al Marquardt
>>>> ampm@xxxxxxx
>>>> Al Marquardt Electronic Repair
>>>> 206 W Main
>>>> Girardville Pa. 17935
>>>> ----- Original Message -----
>>>> From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
>>>> To: <techassist@xxxxxxxxxxxxx>
>>>> Sent: Friday, December 16, 2005 4:55 PM
>>>> Subject: [TechAssist] Sony KV-32s20 No Audio or Video? flashing panel
>>>> light
>>>> continuously?
>>>>
>>>>
>>>>> Help appreciated,
>>>>> I suspect the jungle I.C, but want to check in before ordering the
>>>>> part..
>>>>> I
>>>>> have high voltage. Turning up the screen control fully produces a dark
>>>>> raster. If I remove the CRT video board, the light on the front panel
>>>>> still
>>>>> is flashing . I do have 203 volts at each cathode on the CRT board. I
>>>>> can
>>>>> follow the video signal into IC 351 but at pin 4(6) it is gone only a
>>>>> curved
>>>>> trace. The IK input to this I.C has 2.5 volts. I have checked all the
>>>>> caps
>>>>> around IC351. I did change the 3.57 MHZ crystal but still have poor
>>>>> reading
>>>>> there with my scope .I suspect this T.V was worked on previous showing
>>>>> I.C
>>>>> 351 and I.C 1261 freshly soldered.
>>>>> I can change the tuner channels and send a RF signal through so figure
>>>>> the
>>>>> tuner is OK. I do not have a trouble shooting guide so this is what I
>>>>> have
>>>>> checked.
>>>>> Any help would be appreciated,
>>>>> I do have a print,
>>>>> thanks
>>>>> Bruce.
>>>>>
>>>>>
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