Question about Toshiba 53H71 53 in. Rear Projection Television
I have a Toshiba 53HX71 and over time it lost vertical and horizontal hold. You can see the image but it is scrolling/rolling horz/vert. The problem is on the following inputs video 1,2,3 and ant 1, 2.
Component 1 and 2 are working great.
Also audio is working great on all inputs.
I have replaced the surface mount 10uF capacitors on the hyper board, also found a blown capacitor (330 uF 160V) on the main power board. I have replaced these and no change. Any ideas?
Also does anyone know where to download a service manual?
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Posted on Jan 02, 2017
SOURCE: problem with y toshiba 53hx71
There is a fairly common problem with those symptoms. Try removing the srs-wow board, stand-up audio board next to the tuner. If the picture clears up it's likely QD01 on the srs-wow board loading down the scl & sda lines. QD01 is an Njm1136d Toshiba p/n# 23009142.
Posted on Dec 01, 2007
You do not remove the screen on that TV. Doing so will mess up your convergence.
Chassis must be removed by a professional.
Call the manufacturer to find you nearest authorized service center.
Posted on Mar 24, 2009
check for shorted horizontal output transistor and there is an open high voltage capacitor around horizontal driver.
Posted on Aug 26, 2009
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