Question about Sony KV-32V36 32" TV
My wife was watching the tv when it powered down on it's own. It would not
turn back on via remote or top touch pad. The surge protector didn't fault out, as the other components plugged into it remained powered up. I looked on the back side of the tv for a fuse holder, but did not see one. I would like to know if there is a fuse inside the tv that may have blown, or if it finally bit the dust. Any help would be greatly appreciated.
I have not worked on this model for a very long time. But, if you look
down the centre of the main board, I believe that there are a number of
voltage regulators in a row that are heatsinked to the top frame, using
a metal bar, or something like that. Re-solder all the pins on these.
Also resolder very well, the leads of the horiz line drive transformer,
that drives the HOT (horizontal output transistor). This is the small
transformer after the horiz line drive pre-amp stage that is before the
Because you say that the set is going back to Input 1, this means that
something is doing a full reset. This means that the uPC is loosing its
supply, and thus re-setting. If this set is properly turned off and
back on again, it should come back to where it last was. In some models
of the Sony, there is a separate standby supply for the uPC. In your
model, I think that that the standby supply is part of the main power
supply. If this is so, this means that something is putting the complete
power supply in to protect, or it in itself is failing.
Also do an ESR test on all the electrolytic capacitors in the power
supply, the horizontal output stage, CRT board, and the vertical
deflection amp. I've seen problems with these in all of these areas,
especialy when these sets were getting old.
This is what I can remember that I used to do with these sets. If it
beyond this, then you will have a challenging job to find the fault. It
is able to be found, but you will need a lot of experience, and the
proper setup with the proper service information to find it.
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Posted on Jan 02, 2017
SOURCE: TV will not switch on
this can be caused from numerous reasons, I will specift only the most common ones which doesn't require professional skills to deal with. The "easy" initial technical troubleshooting that can be performed, without a schematic and without a service manual, is using your DMM to make voltage readings and test components, also do a careful visual inspection and make not of any faulty or cracked solder connections around the high heat producing components and other pertinent details. Given the symptoms you reported, it should be obvious that the areas of initial troubleshooting interest in the television circuitry are the main PS, B+ regulation, and B+ distribution, standby B+ , the HV and HOT area.... also pay attention to the and flyback derived B+ circuitry and components.
Posted on Mar 27, 2006
SOURCE: Sony 27S15
You Probably have a bad flyback transformer(The HI VOLTAGE) and a defective horizontal output transistor. I you have training in the tv repair , then you can go to http://www.partstore.com and getthese parts. they arte soldered in so your gonna have to know how to solder and unsolder as well. You should also know all the safety issues regarding the HI voltage in these sets. If you dont I highly advise that you take this set to a pro for repair as theres hi voltage inside these sets even when they are unplugged. Good Luck
Posted on Jun 25, 2006
SOURCE: No picture on a Sony KV-32V65 TV
AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the Cboard, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking.
Posted on Jul 04, 2007
SOURCE: sony trinitron 32
Hi, tubes getting tired, band-aid fix you can do is remove back of set and turn up(clockwise) the screen control( small black plastic control mounted on side of flyback transformer, do not turn the knob marked focus) until you see a whole bunch of white lines across the screen, then turn same control counter-clockwise until all the lines go away, try several different channels to be sure all the retrace lines are gone, you`ll get up to 1 year more use out of it, than she`s done, good luck, BMW Rider
Posted on Dec 12, 2007
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