Jvc tv circuit diagrams

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular brand TVs are given.

I've the schematic diagram, but it can't be send it to you by this windwo. It is a PDF document.

The on button activates a micro switch (all the front controls) and you would have to unsolder that switch to take it out of circuit----two pins.

If taking it out of circuit allows set to work just use a remote.

Hi,

I have the copy of JVC LT-42X579 service manual that covers the following :

precaution
specific service instructions
disassembly
adjustment
troubleshooting
wiring diagram
block diagram
circuit diagrams
pattern diagrams
voltage charts
waveforms
using p.w. board & remote control unit
exploded view parts list
exploded views
printed wiring board parts list
remote control unit parts list (rm-c2050-1c)
packing
packing parts list

If you want the copy click it HERE.

Jdvillanueva

i circuit diagram of jvc tv

mi brothers,help mi, diagram panasonic/ tv /TC-36SX31 /circuit pin 13 off fly back ,tank you>>> [email protected] ///

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 (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. 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.

Try checking the filter in the 116v line. You may have an intermittent spike coming through the B+ line.(The filter may have decreased in value) Also a small filter in the X-ray circuit could have lost capacitance. There is a low value capacitor (about .047uf @400v) in the collector circuit of the horizontal output transistor that will detune the horizontal circuit causing the HV to go too high. If this cap is intermittent it may be causing your problem. Stargazer Hope this helps

I'll bet you have vertical output IC with some pins not soldered. This IC ( integrated circuit) is a "chip" that makes the picture fill out from top to bottom. After a period of time heat will cause the pins to crack loose on the circuit board. You need to have a tech check it for you. Stargazer

the problem in my tv is the sound no have