[TechAssist] Re: Sony KP53S25 IK problem???
- From: Jim Myers <jr.myers@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Mon, 23 May 2005 10:45:36 -0500
Try the 18K resistor trick, one connected to each cathode and the other
ends all connected together. This should allow the picture to slowly
fade in as the heaters warm up with no led flashing. You still won't get
a good picture (weak green) but you should get A picture.
********************************
Since 1972 *
Jim Myers *
Telrad Electronics *
Fort Wayne Indiana *
********************************
Larry E wrote:
> Hi Guys, Sony KP53S25, chassis # unknown, turn on set, audio works, tube
> filaments
> light up, no video for 10-12 minutes, constant blink code. Once video comes
> on it will
> stay on all day unless you change the channel ( or shut off the set)then the
> process
> repeats itself, set worked on by another tech before we went out, he has
> already turned up
> screen controls, green is at max, almost no green in picture, I don`t have
> the prints for this set,
> sounds like the green tube is shot so no IK pulse back to the chip??? Never
> seen the problem
> with the IK circuit activated by changing the channels, customer is looking
> for a "bandaid fix"
> needs 1-2 months to save up the money for a new set, If no IK pulse why does
> the set run
> after a 10 minute warm up time? Anybody seen this before? Thanks in advance,
> Larry E
>
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
>
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