Question about Toshiba CZ32V51 32" TV

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Still no picture, but there is sound

Okay, resoldered many connections and checked the fusible resistor by the vert out. Now, there is NO intermittent white line across the screen...Fuse by the FBT still blows....static felt on the TV screen, but that's it. Have we narrowed it down to the FBT or sound like another component?

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Re: Still no picture, but there is sound

If you are getting static on screen you dont necessarily rule out the FBT, but if there is a fusible resistor by the FBT that is blowing it may be supplying current to the vert IC, the IC may be shorted internally or externally, check your connections and try replacing IC. Also check the pump up cap and if it is powered off the FBT the rectifier diode.

Posted on Jul 09, 2007

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White line in center..sound iis fine

Most common are soldering problems on the vertical deflection IC's.
If this line is quite bright: shut down the set, it might damage the picture tube permanently. Resolder all pcb connections under the vertical defl. part. With a magnifier you can see "craters" around the footprints. Where is the vert. deflection. ? Mostly an integrated circuit
on a vetically mounted heatsink . Typnumber: mostly something TDA53xx like. Gently knocking with a screwdriver and observing the screen might lead you to it's location if you're not familiar with TV's.
Watch out: lethal voltages !

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Oct 14, 2010 | RCA F27442 27" TV

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My tv has a line through the centewith half o the picture at the bottom!

It is vertical stage problem .check supply voltage,and output voltage of ver ic,If it is upnormal find reason,and also resold the ver.ic .and change vert stage electrolytic filters.finaly replace vertical ic.

Aug 11, 2010 | Sony FD Trinitron WEGA KV-36FS120 36" TV

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Have you vertical deflection circuit checked for bad Vertical IC, and or Bad vertical Capacitors in the vert output section for the deflection board. Also have Vertical output Pump up Capacitor replaced, also have B+ voltage check coming from flyback transformer, for any open fusible resistors

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1 Answer

Model: CM21AF8A

the picture is produced by the following,
check the power supply, making sure that a high voltage is produced of about 90-110 volts, which later triggers a line transformer to oscilate.
a power supply is suppose to be checked expecialy semi conductors and diodes, also fusible resistors be checked make sure that the switch is okay power is passing through it.

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2 Answers

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Dec 04, 2007 | Sylvania SRT2232S 32" TV

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Vertical Diffusion

completely resolder the virtical circuit, including the vert. ic. i have also at times found an open resistor near the flyback that provides b+ to the vert. ic. if you can find a pinout if the ic, find the b+ pin & trace it back to the fluyback. good luck.

Dec 17, 2006 | Quasar SP-3235 32" TV

2 Answers

No picture

If you know how to trouble shoot solid state electronics, you should not have a problem trouble shooting this set. it sounds like a bad solder connection But these sets are not made for a consumer to repair as they are all soldered into placxe and inside a TV set is not tyhe place for a peep to br if he doesent uinderstand thongs

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4 Answers

Thin horizontal line

Defective components in vertical deflection and output circuit inclusive of vertical output device, coupling capacitors, and yoke connectors. Passive devices such as electrolytic capacitors, coils, and resistors to/from power supply circuits. If your tele is more than 10 years old dump it and get a newer product. $100 USD is a fair price to diagnose and attempt service, depending on age and configuration. Older products may not have replacment parts available at any repair cost. There may be a pot for adjusting the vertical size. If so, it may be dirty. If you can find it, try adjusting it which could clean it. BE CAREFUL -voltages are very high.

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