Fan issue with hd-52g787 52 inch

It could be dust and or lint in the tv. The bulb has a fan to cool it and if it is plugged with lint can cause the bulb to overheat and fail. Lint or dust that gets on the bulb can also cause premature failure. Remove bulb and lean fan and intake screen thoroughly and check to make sure fan is operating. Then install new bulb. Hope this helps.

"The only things I know of that cause bulbs to blow are, defective product, has been used its average life span, over voltage, heat and vibration.
The implication is that this has happened repeatedly so defective product is unlikely.
If it had lasted its normal life span you would not be asking the question.
Over voltage is out because the switch is off.
Heat is out because the the bulb is not burning when it blows.
That leaves vibration. Some types of candelabrum bulbs seem to quite sensitive.
What's above the ceiling The tink you hear is the filament breaking This most often happens when the bulb is hot. Very unusual to break when cold unless dropped or mistreated.
Don't see a fire hazard because switch is off."

Most Dlp sets have a fan for cooling the bulb this should start at switch on if it doesnt bulb will not light.
Check fan is pluged in & that blades can turn freely.

My guess is that you have gas heat. If this is the case, sounds to me like your main control board or depending on age of furnace, fan controller is not working. With gas furnaces, it utilizes 2 fan speeds. High for cooling, & Low for heating. Your thermostat only controls the High speed - switches when you turn your fan on & when there is a call for cooling. The only other thing I can think of is it is possible that the Low speed windings on the blower motor are open causing it to not turn on. Most motors have 3 to 4 speeds & only 2 are used. Switch the heat motor wires in the furnace (on the control board) with one that is on a spare terminal.

very temper mental these things if it isn't the bulbs it could be one of the control boards that operates the pic and sound, but sometimes you have to keep messing around with the bulbs

The most common problem with JVC LCD rear projection TV is bulb failure. Do not panic, this is normal after 2-5 years of use.

You can change the complete assembly or for less cost just change the bulb. Do not use Osram or other funny brand "rebuilt" or locally made bulb. Use a Philips replacement and all should be good.

Changing the bulb involves removing the lamp assembly and taking it apart like a puzzle and replacing the bulb. JVC are a little more difficult to do than most others because the wires on the original bulb are molded into the glass on the original bulb. Wires must be cut and stripped of insulation before connecting to the new bulb.

All JVC LCD Rear projections TVs use TSCL110 TSCL110U TS-CL110U Lamps.

HD-61FB97 HD-61FC97 HD-61FH96 HD-61FH97 HD-61FN97 HD-61G587 HD-61G657 HD-61G787 HD-61G887 HD-61Z456 HD-61Z575 HD-61Z575AA HD-61Z585 HD-61Z786 HD-61Z886

Check this out for all JVC models to identify the lamp and bulb. JVC Gallery.

easyab

It sounds like you have a thermal issue. The TV is getting too hot or the Thermal Fuse is bad. The thermal fuse detects the temperature in the TV and tells the TV to shut down if it thinks it is too hot. Most likely caused by poor ventilation or clogged fans from household dust. Try moving TV away from wall or cabinet first, if this does not fix the problem, clean ALL the fans in the TV. If problem still persists, replace the thermal fuse.

I would start suspecting a DMD board

HI, this may be a simple cooling issue. try inspecting the cooling fans that are located near the power sector. if these cooling devices are not operational, they will cause the power board to shut down periodically, due to heat build up.

If the fans are operational, this will confirm a weak and defective power power board.

You need a new bulb