Question about Apex Digital GB65HD09W 65" Rear Projection Television

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Apex GB65HD09W ''Convergence'' issue

Well I basically got a 65'' Apex HDTV from my friend for free since he got a nice Mitsubishi DLP and figured it was awesome besides the fact that the thing weighs 368lbs.

Anyway he said he was getting rid of it because of a ''convergence'' issue...honestly I've always preferred Projection/CRT based display devices. After I hooked the mammoth up I went through the instructions and lined up the reds/yellows/blues/greens/cyan and eventually when I changed to the ''White'' grid it seemed pretty even.

Watching TV is great, love this thing but when I hook up the Xbox I noticed some issues with the Red and for some reason there seems to be a ''Warped'' or ''warbled'' issue in difference sections of the screen. I know that I can move the convergence lines either UP or DOWN and LEFT or RIGHT.

Is there any better way of going about this? Also he mentioned something about having to replace some ''chips'' on the board that controls the Convergence, not really sure what they are specifically or how to go about doing this.

Any help would be greatly appreciated.


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Posted on Jan 02, 2017

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SOURCE: 51 big screen apex tv, convergence or verticle IC?

If the lines are thin and close together running horizontally, it may be the vertical driver, but that usually takes out the resistor and sometimes the diode in the B+ for the vert. Also you must replace the caps that caused the problem in the first place.

Posted on Apr 15, 2008

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SOURCE: my apex gb65hd09w has power

Pull out Power supply board you will find Poor solder connection around the tyrisitor..And maybe a BAD capacitor 100uf 250v?

Posted on Aug 08, 2009

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SOURCE: convergence out of line

STKs must not have held up Look in back of set they are 2 Big Black ICs will have part number on them example STK392-110,if 110s use can order parts from MATs 1-800-628-1118.

Posted on Aug 20, 2009

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1 Answer

I have an apex model, GB65HD09W with convergence problems. I have already replaced both stk 392-020 chips Is ther a fuse or resister feeding the B= to the chips? I checked all the resisterts in the area.

After a repair to convergence circuit, you should do the convergence adjustments. If you wish to get more details about this, check the site linked here. it is difficult to type in all here by this window.
Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

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which of the three lights is flashing red?Let me know and I will assist you with the issue.

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Mitsubishi WD-73286 is DLP tv that does not have any convergence circuit inside.
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Hope this info will help.

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After the Tv has been on for 15 mins the color shifts and gets blurry. How can i fix it?

I have the same TV and same issue. Sometimes I can whack it on the side and it is ok for a while.

Was told most likely cracked solder joints on the ICs. Plan on taking a look at resoldering mine.

Oct 06, 2009 | Apex Digital GB65HD09W 65" Rear Projection...

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My apex gb65hd09w has power going to it but it is not coming on no fuses appear to be blown is there some manual rest on this device.

Pull out Power supply board you will find Poor solder connection around the tyrisitor..And maybe a BAD capacitor 100uf 250v?

Aug 07, 2009 | Apex Digital GB65HD09W 65" Rear Projection...

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APEX GB65HD09W Convergence Issue!

You need to re-solder the circuit board that contains the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall, about dead center in the circuit board. You may be able to recreate the problem by gently moving the heat sink (which the modules are connected to). This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. This is a caused by a minimum effort (a.k.a. minimum cost) solder job, probably done in some 3rd world sweat shop. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. take the appropriate cautions working around the high voltage of the set & use a non-conduting piece of wood to push the heat sink when we doing tests.
Best of luck, hope ya fix it.

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1 Answer

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To reset the convergence EEPROM, press "menu 0359 to enter the convergence menu, then press "8970" to reset.

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