If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ Service mode entry, adjust and exit procedure to many popular brand TVs are given. Never forget to exit the service mode, after all adjustments have been done. Search the site by type in the "brand name" to your device; (Exclude the model number), in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
SOURCE: primo sharp 21v-L70m model the
These sets are quite outdated, there are fewer and fewer repair shops out there for them.
The problem is most likely the power supply (internal), this can be repaired quite simply if you know what to look for. Other problems may or may not include a blown IC, fuse, lamp, or the tube itself.
The cheapest option you've got is to buy a new TV I'm afraid.
SOURCE: i want to know the resistance value of r704 in my
leo_arsolaci,
sir here is the exact value of resistor R704- 220 ohms and please check also the zener diode D732- 8.2 volts....
SOURCE: i have a sharp tv model 21v-s100, if you turn on the tv. the fuse is always damage.
You have a direct short in the power supply or the high voltage stage, without more data it is hard to be more precise. But let us speculate, if the fuse blows right away, "power supply issues" If the fuse takes several seconds it is more than likely, " flyback problems "
SOURCE: I am looking for schematic diagram of sharp tv model 21v-l230s
you have many options go www.retrevo.com +www.repairmanualdownloads.com+www.servicemanuals.net+www.schematicsforfree.com
www.manualesdeservice.com.ar +www.clubdediagramas.com(very important) +www.yoreparo.com
God bless you
SOURCE: How do get to service mode for Sharp TV
Hold volume up and channel up when you plug the power cable in. Hope this helps.
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