I am having problems getting power to the keypad and the auxillary lights. There is no power there but there is power to the main unit. There is power to the computer but there is nothing coming out. I have tried everything to fix this and now need a wiring schematic to trace the problem.
SOURCE: Looking for a schematic so i can trace the power
GO TO THE FCC WEBSITE:
https://fjallfoss.fcc.gov/oetcf/eas/reports/GenericSearch.cfm?calledFromFrame=N
ENTER THE FCC ID # YOU MUST ENTER IT CORRECTLY.
FOR INSTANCE...MY FCC ID # IS G9H3-5810 ENTERD CORRECTLY WOULD BE ON THE FIRST LINE
G9H AND THE NEXT LINE 3-5810.
TRY THIS FIRST UNTIL YOU GET USE TO IT AN IT WILL BRING UP ANOTHER MENU. UNDER DISPLAY EXHIBIT CLICK ON DETAIL
THEIR YOU WILL SEE BLOC DIAGRAMS,SCHEMATICS ETC. HOWEVER NOT EVERY RADIO WILL DISPLAY THIS,IF THE COMPANY PAYS EXTRA $ TO THE FCC CERTIAN THINGS WILL NOT BE DISPLAYED LIKE SCHEMATICS.
THERE IS A WAY AROUND THIS ALSO, THE US PATENT OFFICE. TYPE IN THE PANTENT NUMBER AND EVERYTHING WILL BE DISPLAYED, IF YOU CAN FIND THE PATENT ID #.
HOPED THIS HELPED
KEVIN
SOURCE: LG 42KK Power Supply Schematic Requested
you won't find any just ,
use a thermal probe or thermal gun as heat is likely the issue ,
if nothing else replace the main diode /rectifier and caps.
I find that if I replace the hottest items that usually the fix
if there is room for a small fan you will be doing them a great service and extend the life of the tv.
you may find some info on the power supply from one of these links they are generic enough
http://www.pacificdisplay.com/links.htm
SOURCE: No power
Hi Jerry,
The power wires are usually numbered 11 & 22 (one winding) and 33 & 44 (the other winding) Because it makes 190VAC on one side only I'd suspect that the AVR output got burned trying to force the rotor to make voltage it couldn't sense. If I remember correctly the AVR will have wires 11 & 22 connected to it as the sense input, so if that side of the stator is open or shorted, or if the sense wires got broken the AVR will be mased out trying to get the right voltage.
You don't specify which model this is but some of the manuals are available here.
Regards,
Carl
SOURCE: PCM Troubleshooting Check light on with no code reader power
You can't jump the connector to get codes on OBD II. (Pre 1996) Try hooking back up you code reader. If it doesn't communicate, check the fuse for the cig lighter. This fuse should also power up the diagnostic plug.
SOURCE: Casio CT-670 Tone Bank keyboard completely dead
How familiar are you with schematics? I've just found my CT-670, There where marker marks on the keys. I cleaned it up. I took it apart as one channels had no sound. I love this machine. I want to find a manual for it also schematics would be very helpful for me too.
I would suggest looking inside for burns on semiconductors. or loose soldering. I need to replace a chip that has no cross reference... that I've found yet... I think it's an amplifier but need to spend more time on it....
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