panasonic travel tv 1 inch screen

[timmy]

Originally Posted by jhalphen

Hi Timmy,

I pulled from the Web the spec sheet on the AN5760, the Vertical processor & output chip of the TR-1010P. It's clipped to this message.



Alas, there is a standard fault with a given model of TV. There are a fair amount of elecrolytic caps - i counted 7 in the Panasonic application note and as you said you had changed all the electrolytics, i would carefully go over each and check that one was not mounted with the + & - terminals reversed. In tight circuitry or when tired, even trained technicians sometimes make mistakes.

Of course a new Cap mais sometimes be bad but if yours are from a reputable brand, Panasonic, Nichicon,... this very seldom happens.

If you like repairing electronics, an ESR capacitor checker would be a valuable tool to have. ESR stands for Effective Series Resistance. The great advantage of this type of checker is that you can check electrolytic Caps in-circuit without desoldering them - a phenomenal time-saver when troubleshooting.

With an ESR meter you can check electrolytics from 1µF to the sky.
Under 1µ & non-electrolytic caps, the meter is useless.

to buy one, search a reputable test gear dealer such as this one:
http://www.tequipment.net/index.html

Other members may suggest a brand/model they like.

Best Regards

jhalphen
Paris/France

well that is one thing i did do and check the polarity, the neg of the caps is the half circle on the board so i ruled that out thank i didnt make a mistake. its just that what i did and checked seems not to be whats wrong and that im overlooking what it really is. but yes its really tight in there to work on. i did change both ics vert and horiz.