Question about Apex Digital AT2702 27" TV

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Vertical adjustment Is there a vertical adjustment for the APEX TVs?

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No .
if the sreen is not full then there is a problem with the vertical circuit

Posted on Jan 16, 2009

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Apex gt2715 vertical sweep capacitors


Check the filter capacitor to the power supply to vertical output section. Normally, this supply will be provided by LOT. Check the rectifier diode and smoothing capacitor. Replace all the electrolytic capacitors [5 or 6 of them] in the vertical output section. It will be the best remedy. Never forget to replace the supply smoothing capacitor described above.
Visit the site named 'Electro-help' for more details. Click this link. View it in "Timeslide" or "Flipcard" option, which can be selected from the drop down box menu by the [Sidebar] tag, at the top left corner of the display window. It will make search easy. There are more than 1250 posts to different brand TVs now. Pull up older posts there.

Nov 21, 2012 | Apex Digital AT2708S 27" TV

5 Answers

Apex AT2702 27" color television under scan


well most of the modern tv today doesnt have vertical hold anymore.
this symptom is caused by a trouble in the IC integrated circuit or the vertical oscillator circuit. let the service guy do the job if u dont know anything about this. good luck!

Sep 18, 2008 | Televison & Video

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On my Apex TV screen, some of the picture is cut out. How can i adjust the TV resolution?


You cannot adjust the resolution in CRT TVs. Its not like a monitor that is compatible with a number of resolutions from a computer for example. CRT TVs resolution's dont work like that.They take an input usually from a composite, Svideo or coaxial source and display it on the screen.

When you say the picture is cut out is there a black bar on top/bottom/middle of the screen? In older CRT TVs that usually means a problem with the TV itself and would need to be taken in for repairs or replaced.

Mar 05, 2011 | Apex Digital AT2708S 27" TV

1 Answer

Horizontal image is stretched beyond the screen borders


the problem is inside your TV , check the capacitor in vertical section of the TV.

Jul 31, 2009 | Apex Digital PF3220 32" TV

1 Answer

Apex out of convergence


I have this TV and have fixed this issue. If you cannot adjust Red or Blue convergence, then your STK ICs are defective. The signal board or Digital convergence board is not able to adjust sig lines on the deflection board so pushing buttons does nothing. The STK's are your amplifiers for vertical and horizontal. This will require dissassembly and soldering. You'll need 2 STK392-020 IC's and 125v/5A pico fuse or buss fuse..

The STK's are mounted on 2 massive heatsinks. Can't miss it. Word of advice, LABEL the 3-4 Pin plugs B,G,R from left to right. These are your Vertical and Horizontal coils for each tube. Don't mix them up. I did and the tv survived luckily. Chances are if your STK's poped, then they took out the -25v line. Take out the power supply that is mounted vertically on the right. Look for a row of axiel lead fuses with "SOC 5000" printed on it. They look like white rectangular blocks with leads. Check them all. Particularly RF817. Sits next to RF814. The service manual lists it as a fuse and NOT a Resistor-Fuse like the label suggests. I found more than one typo like this. I replaced mine with a generic 125v/5A fast blow buss fuse. Soldered in a holder for it. Should work the same.

Took me abit to realize it was a fuse on the power supply. This -25 line traces to W057/W058 next to the first STK chip. Explains the symptoms.

May 12, 2009 | Apex Digital GB55HD09W 55" Rear Projection...

1 Answer

Vertical roll


I get Vertical roll on my Apex AD1000 DVD player and need a schematic. I don't know where to get a schematic but I have the necessary test equipment to troubleshoot the problem. Do you know where to get a schematic or know what causes the vertical roll problem?

Solution:

Program the setup menu screen to NTSC instead of "PAL" or "Auto"

Oct 05, 2008 | Apex Digital AD-1110W DVD Player

1 Answer

Over projection on apex hd 51"


try to go to menu using ur remote and adjust the v-size/vertical size....

Jan 29, 2008 | Apex Digital GB51HD09 51" Rear Projection...

1 Answer

SCROLLING LINES AT BOTTOM OF TV SCREEN


need replace the capacitors at side of the ic vertical marked on the , init to the big first.

Jan 11, 2008 | Apex Digital AT2708 27" TV

1 Answer

Apex model GB4308 Vertical Deflection failure


Sears used to sell these TVs, therefore they are likely to have parts, check with them.

Oct 17, 2007 | Apex Digital GB4308 43" Rear Projection...

1 Answer

Image on my Apex TV/DVD combo is too large for the screen


deer joe you need da service manual,becouse your tv is altereyted the memori,you moust going the center service for definetival reset

Jun 02, 2007 | Apex Digital GT2715DV 27 in. TV/DVD Combo

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