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Vertical chip blown

Vertical hold chip blown, unable to read number, require if possible, schematics or at least chip number, starts with AL.......

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  • Hans Newland Nov 12, 2007

    Sanyo CP34 ST3T, chassis number AB3L/A34



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Wuts the model number of the set

Posted on Nov 11, 2007


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Its a zenith 27in the sound is good but the picture only shows a line across the screen

Make a fist with ur hand and bang on the tv bazel frame.The tv picture flickers back or bounces back to a normal picture.The tv have a vertical or a horizontal hold ics have coldsoldering joints and requiring resoldering.If u bang on the tv bazel frame picture don't flickers back or bounces back to a normal picture.The tv have a vertical or a horizontal hold ics are dead require changes those ics chips.If u don't have all the tools.Can't do a basic soldering work or able to changes those ics chips.Shop around for tv shops for estamate and repairing prices for repairing.

May 04, 2011 | Zenith C27A24T 27" TV

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I replaced my convergence chips in my mitsubishi projection tv, the convergence is still out and does not move at all when I try, also there is still the bow tie - the top and bottom center pull in. Did i...

Hard to say what might be the problem, but I would be checking for the following:

a) verify all fuses (pico fuses) are not blown. They look like yellow, or green resistors typically and should be marked with some sort of "Fxxx" designator

b) Verify resistors around the STK chips are of the right value

c) Verify your soldering connections

d) It is possible the part you installed was defective. Verify you cannot move any color in any direction. (horizontal or vertical)

e) Try to verify if power is getting to the IC - if so, then likely an IC problem. If not, likely a fuse problem.

f) Finally get a schematic and verify the pinout from the STK chip to the red,blue, green connectors to ensure you did not accidently remove a surface mount resistor.

Mar 20, 2011 | Mitsubishi Televison & Video

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I have a 1983 popeye arcade machine. the circut board that controls the vert hold for the monitor has 4 knobs for vert., sound, horiz., and bright. thevert. hold knob is busted off and the screen has...

VR353 is a 200k pot that feeds directly in to the vertical oscillation input of the chip on the main board at connection B1. If this pot is broken, you must replace the pot in order to get any vertical oscillation at all.

Sep 10, 2008 | X-Gaming X-Arcade PC Joystick (XGMPC)

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Vertical deflection went out and now HV is going into shutdown

Get service manual / schematics from HERE and find why vertical uotput IC is blown in your TV.
Service Manual will also give you info how to perform vertical adjustments.
Hope this info will help you to resolve problem.

Aug 22, 2008 | Mitsubishi CK-31304 TV

1 Answer

Service reqd E511

I was able to get hold of a schematic diagram to locate the part number for sensor :
part code 2090463 SENSOR TR-0
When I inspected the original part the pcb was cracked therefore the sensor was unable to dectect the 'mirror' which is a silver square located on belt on photo con unit.
If you require a copy of the schematic diagram (pdf) let me know an address to send it to.



May 22, 2008 | Epson ACULASER CX11NF All-In-One Printer

1 Answer


This is a vertical chip. Call any electronics parts distributor and order part # TDA 7531. Theyn will know what you're talking about.

Feb 24, 2008 | Philips 27PT6441 27" TV

1 Answer

Bright line coming in center of screen

Hi Shailendrar , your problem sounds like vertical collapse , the whole picture has collapsed into a thin , very bright centre line ? maybe the result of dry solder joints , does banging on the side of the tv temporarily fix ? if so , the circuit board requires inspection for bad solder joints . Alternately the vertical chip/transistor may be blown , replace as required. Cheers T

Dec 05, 2007 | Philips 19PR19 19" TV

2 Answers


replace vertical out deflection ic

Aug 19, 2006 | Jensen J50-MCTV Television

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