[TechAssist] Re: Sony KV-32s20 No Audio or Video? flashing panel light continuously?
- From: "Bruce Tiedeman" <btied@xxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sat, 17 Dec 2005 12:00:25 -0500
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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