Hi Dan, what could happen is that you repeat the fault, so it counts on this fault, the Backlights circuit or its power supply (Inverter), it can have some false contact, in solders or connection
To the extent that you can, check this stage of the TV, so that it does not go back to repeat the failure
If you have technical knowledge, I will send you a link to download the service manual
But use it and when it fails again, take it to a specialized technical service
I hope I can solve your concern
Greetings Franco Dosil
Hola Dan, lo que podria pasar es que repita la falla, por lo que cuenta sobre esta falla, el circuito de Backlights o su fuente de alimentacion (Inverter), puede tener algun falso contacto, en soldaduras o conexion
En la medida que pueda , revise esta etapa del televisor, para que no vueva a repetir la falla
Si tiene conocimientos tecnicos le envio link para descargar el manual de servicio
Sino, uselo y cuando vuelva a fallar llevelo a un servicio tecnico especializado
Espero logre resolver su inquietud
Saludos Franco Dosil
https://data2.manualslib.com/pdf4/85/8403/840220-sanyo/leddp32242.pdf?a6c42aad4b6fa0452f633fecebdd9289&take=binary
Thank you very much. Most helpful
Thank you very much Dan for your comment, I hope you manage to repair your TV Sanyo, luck
Greetings Franco Dosil
Muchas gracias Dan por tu comentario, espero logres reparar tu TV Sanyo, suerte
Saludos Franco Dosil
I got it working but now picture is backward. Any idea what I've done or not done
Hi again, Dan, for what you have to say, you had to have entered the service mode of the television, looking at what I attached, I see that it is the service manual, you have to re-enter the service mode;
In any input source, then press the "?", "EXIT" and "OK" (remote control) keys to enter the factory mode, then go to the point;
NVRAM CLEAR
Initialize the program defaults to the NVRAM to achieve the accuracy of the following adjustment items.
In factory mode, it is the first and important step to ensure that all values ??are default and correct values.
(Position H / V, Clock, Phase), Source-dependent configuration
To avoid an error, the initial process after making the factory settings. This element will have a verification dialog box "yes or no" to do the initial or not.
News:
After processing this element, the DUT must be turned off and then the AC turned off.
Follow the steps and you will have the image again
I hope you see correctly again
Greetings Franco Dosil
Hola nuevamente Dan, por lo que cuentas, tuviste que haber entrado en el modo de servicio del televisor, mirando lo que te adjunte, veo que es el manual de servicio, tienes que volver a ingresar en el modo servicio;
En cualquier fuente de entrada, luego presiona las teclas “?”, “SALIR” y “OK” (control remoto) para ingresar al modo de f?brica, luego ir al punto;
NVRAM CLEAR
Inicialice los valores predeterminados del programa a la NVRAM para lograr la precisi?n de los siguientes elementos de ajuste.
En el modo de f?brica, es el primer e importante paso para asegurarse de que todos los valores sean valores predeterminados y correctos.
(Posici?n H / V, Reloj, Fase), Configuraci?n dependiente de la fuente
Para evitar un error, el proceso inicial despu?s de realizar la configuraci?n de f?brica. Este elemento tendr? un cuadro de di?logo de verificaci?n "s? o no" para hacer la inicial o no.
Noticia:
Despu?s de procesar este elemento, el DUT debe apagarse y luego apagarse la CA.
Sigue los pasos y volver?s a tener la imagen bien
Espero que vuelvas a ver correctamente
Saludos Franco Dosil
I put the screen in backwards. I flipped it around and perfect. Thank you for your help. I got an extra tv now.
Hello, Dan, you're welcome, I'm glad you could solve the problem and have an extra television, enjoy it
Greetings Franco Dosil
Hola Dan de nada, me alegro que hayas podido resolver el problema y tengas una televisi?n extra, disfr?tala
Saludos Franco Dosil
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SOURCE: Sanyo DP40142 LCD backlight not working... How do I replace backlight inverter?
Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
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