Sanyo DS32225 loss of vertical. I have soldered around the vertical circuit thinking bad solder joint. Bad IC maybe?

think you have bad solder the best way to find out if you do have bad solder take tool that is rubber and tap on the bord of the big screen to see whear the bad solder I thinking it maybe by the conv chip are at stk392-120 or 110.. thear are two of them mit are knowing for bad solder.. I done a lot of them I been doing them for 13 or more.. STK392-110 - Stk392-110 Sanyo IC 18-pin SIP
The STK392-110 is a convergence correction circuit IC for video projectors. It incorporates three output amplifiers in a single package, making possible the construction of CRT horizontal and vertical convergence correction output circuits for each of the RGB ...

On most , it is caused by Vertical IC and sorrounding components

Guide on How to find Vertical IC

Look and check for cold solder joints for IC501

part number
LA7840


Resolder the pins of the IC , and replace if necessary

Let us know if you need further assistance.

It sounds like the vertical output IC may have some solder issues. Often bad solder in the vertical circuit will cause the CRT'S ( Picture tubes) to shutdown for protection during loss of deflection and audio will continue to function. I would inspect the solder on the Vertical IC first.

Hello,this is vertical IC loose connection. The vertical output components either a transistor or an IC is probaly got a bad solder joint. Also another possibility is the deflection pins. Buy soldering iron and solder from electronic work to repair the connections.Take the back off of it after it is unlpugged and disconnected from the computer and check the bottom of the circuit board for bad solder joints.I recommend you to be serviced by a technician.

Vertical output IC bad capacitors in vertical circuit 100uf 35v sometimes vertical IC needs to be resolder and that fixes problem look for poor solder joint s.

look for the vertical section of the printed circuit board.there is a vertical driver ic and it is maybe bad...... either the soldering,or the ic.
if you bang on the tv and the picture regains deflection,there is a bad solder joint or connection.
there are a few capacitors too 100mf 25 volt 4.7 50v also 22mf at 50v

If the line is vertical then the problem is no horizontal deflection. The vertical chip is probably fine.

Check connections around yoke (thats the connector with at least four wires that goes up to the coils around the neck of the tube)

Maybe that TV has two horizontal output transistors. One for deflection and one for high voltage? Check both of them. Look for bad solder joints!!!

Sounds like vertical deflection circuit problem. Could be as simple as a bad solder joint around a heavy component such as a transformer, a bad capacitor, overheated resistor, bad IC or transistor, or combination of these. Repair would require knowledge and experience.

If the line is "vertical" then the vertical circuit sounds OK. The problem would be in the horizontal deflection.

Check yoke connection and solder around horz defl circuit.

If the line is horizontal then I would suspect the vertical IC.

i also suspect its just bad solder connections, the vert. o/p ic is maked ic451 look for all the ic's on heatsinks. it should have 10 to 15 pin all in a straight line & be attached to a small heatsink. if i remember right i think if you are looking at the tv from the back it is on the left side near the front (by the buttons/swtitches). resolder all the pins on the ic & resolder the parts just around the ic as they too also develop bad solder connections. just remember to check for shorted pins after soldering. good luck.