If you open your tv , you have to put back the board, there are 2 clips one on left other in the right that keep the board to the case of tv( you have to disconnect the cable AC before open the tv) you can see the fuse easely ( if i remember good there is only one fuse about near the switch on /off
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Check the fuses.Blown fuse conditions FU1 - 6,3A Doors/covers open is displayed. FU2 - 6,3A Doors/covers open for the finisher is displayed. FU3 - 4A paper end condition. FU4 - 6,3A SC 121 is displayed. FU5 - 6,3A one of SC302 or SC403 or SC405 is displayed. FU101 - 15A no response. Fu 102 - 8A no response. FU103 - 1A normal operation,optional heaters do not work. If FU or 102 is the problem,verify the main motor and the fusing unit heater lamps and thermofuses.After change the problematic fuse removal the fusing unit and turn ON the copier.
Please, never try to replace a fuse, without checking for any short circuit inside. You will only increase the damage inside. It is advisable to call in a qualified service technician as opening back cover by unqualified personnel is hazardous.
A blown fuse is a very common type of fault due to poor design very often triggered by power surges due to outages or lightning storms. However, the most likely parts to short are easily tested, usually in-circuit, with an ohmmeter and then easily removed to confirm.
Note that it *may be* useful to replace a fuse the *first* time it blows (though it would be better to do some basic checks for shorted components first as there is a small chance that having a fuse blow the second time could result in additional damage which would further complicate the troubleshooting process). However, if the new one blows, there is a real problem and the only use in feeding the TV fuses will be to keep the fuse manufacturer in business!
Sometimes, a fuse will just die of old age or be zapped by a power surge that caused no damage to the rest of the TV. However, it must be an EXACT replacement (including slo-blow if that is what was there originally). Else, there could be safety issues (e.g., fire hazard or equipment damage from too large a current rating) or you could be chasing a non-existent problem (e.g., if the new fuse is not slo-blow and is blown by the degauss circuit inrush current but nothing is actually wrong).
If the fuse really blows absolutely instantly with no indication that the circuits are function whenever the TV is turned on.
It takes a star driver if I am not mistaken to take the back off probably two different sizes one for the top bottom and sides and one size for where the rca jacks are.. I only recommend checking the fuse...if blown never put foil around it. Takes a 4 amp. 5 amp would be ok. Dont go over this. If the fuse is good you should take to a good tv repairman. If blown and blows the fuse you put in take to tv repairman. Anything past this is highly technical. Hope you have a blown fuse only.