Question about Toshiba 42H81 42" Rear Projection Television

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Fuses where are the F850 & F851 fuses at?

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Black,soldered in micro fuses near front edge of main PCB

Posted on Nov 04, 2008

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Toshiba 50H72 problem plz help!


ok well both of you have had the same problem i did... to fix the picture problem check the circuit board pd0074 its the yellowish looking one next to the green one which has the ic's on them... ok on the pd0074 board look for fuses f470, f850, and the f851 to see if they are blown the f470 is what turns the tv on and the f850 and f851 are what protect the convergence ic's chances are they are blown.... the sound i don't know how to fix that problem but i would check all the fuses on that board to find out if one more is blown that what i did but the only thing is that i could get the actually fuses for the tv i was told by a tv repairman in my town to just take 2 wires sodder them on to the fuse and take a glass fuse and put electrical tape around them and it worked like a charm... so i hope this helps you.... the most i spent was 30 dollars for the ic's and the fuses all together and i was quoted at 450 to do what i did myself

Oct 31, 2008 | Toshiba 50H72 50" Rear Projection...

1 Answer

Toshiba 65HX81 red blinking led


If HV comes up briefly,then TV shuts down = possible bad yoke and CRT...

If open fuse F850 / F851 etc = bad convergence IC's STK392-110

Either way = a major repair ! HTH.............................T.

Oct 22, 2008 | Televison & Video

1 Answer

Toshiba 42H81 Fuse Type


Speed rating is micro = any chemical micro fuse will work,5 amp, of course.Not necessary to use Mfr. part........T.

May 27, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Oshiba 42H81 42


Check F850,F851 fuses = 5 amp micro ( black ) soldered in.
Did you use -150's from kit X480293 or ? What price did you pay?...............................T.

May 27, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

F850/F851/F852


www.partstore.com will have the fuses you need F850 and F851 are part number 23144627 125V 5.0A axial and F852 is part number 23144624 125V 2.0A axial just enter those part numbers in the search box for part number and they will have your fuses.

Apr 25, 2008 | Toshiba 50H82 50" Rear Projection...

1 Answer

Problem with tv


If your Model is Tosh 43H71,then pull chassis and locate F850,
F851 soldered-in fuses...check with meter..if open,replace with
proper value micro fuse(s) and solder jumper wires 008,010,017,
048,600 located on signal board.Replace convergence IC's
STK392-110 with IC's from kit # X 480295 ( upgrade )...........T.

Mar 31, 2008 | Toshiba 43H71 43" Rear Projection...

1 Answer

Toshiba TV 50HX81


Check fuses on Power Supply board (F850, F851, F852) and all other fuses. Replace blown fuses (will need an ohm meter to check fuses). I would also replace the two convergence amps (STK392-110's on the signal board, the big black ICs on the two heat sinks). This worked for me.

Mar 30, 2008 | Toshiba 50HX81 50" Rear Projection...

2 Answers

Convergence


Convergence amps can be upgraded from STK392-110 to
Hitachi brand STK394-160E Part # CZ 01341.....
+ Check B+ micro fuses F850,F851,etc.
+ solder bad connects on wire jumpers 008,010,017,048,600.
If you don't solder jumpers,you may blow fuse ( again )......T.

Let me know.............................

Nov 27, 2007 | Toshiba 42H83 42" Rear Projection...

1 Answer

Toshiba TZ50V51


First step is to use an ohmmeter and check all fuses including
small,soldered in kind called micro-fuses.....F850,F851,F852 etc
.................................T.

Oct 03, 2007 | Toshiba 50HX81 50" Rear Projection...

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