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Re: SONY KDL 43w805c does not accept commands
No, I forgot it switched on during the night and now i think it is completly dead
Looks there is nothing more i can do but to buy new main board 
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Re: SONY KDL 43w805c does not accept commands
Ok, my main board model is 1-893-880-21.
I the same boards on Internet but for different tv models. Do you think they will be suitable:
Board 1 - 65W855C
Board 2 - 65W857C
Board 3 - 55W800CComment
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Re: SONY KDL 43w805c does not accept commands
Does this tv use an external power supply?Comment
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Re: SONY KDL 43w805c does not accept commands
different size could be different Screen driver.. this will put you again in headache get one as yours model and size for example
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Re: SONY KDL 43w805c does not accept commands
Check if the power supply has the required voltage and is steady if you haven't already.Last edited by nomoresonys; 03-15-2021, 03:09 PM.Comment
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Re: SONY KDL 43w805c does not accept commands
OK guys, i have some progression. I bought another main borad from 43w809c. When i switched the set on for the first time with all connected i saw again that self diagnostic screen with colours changing. Reset the TV - was the same. Then i switched off the TV, dosconnected the LVDS cable, switched it back on and connected that cable after few seconds when i could hear the sound from welcome screen and the picture came on. Now it is working but has some strange behaviour at moments - like does not hold the settings after retsrat and others. I can see the TV in my network as 43w809c, do you think it is good idea to change the model number from the service menu?Comment
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I have a strange fault on a Sony amplifier. The volume control varies the display from MIN, then 1 up to 30 and then MAX as expected. At MIN there is no sound. However, at 1 it is quite loud and increasing above 1 does not change the sound level.
I have tried a Cold Reset as per the service manual.
I have looked at the I2C clock and data to volume control chip IC501 (BD3499FV). Data is only sent to IC501 when the volume is set to MIN or 1. At any other setting no data is sent to IC501.
I have looked all the way through the service manual and tried many online... -
On this Vizio D65x, the volume will change on its own. I don't mean like during commercials where the volume will increase. I mean its like the (+) volume button on the remote is pressed and the actual volume dialog is displayed on the screen going up. It will do this, then the volume may start going down. It might go all the way to "0"or it might stop at a different number, then start going back up. The whole time its doing this, the volume dialog is shown on the screen.
It wont do it until it has been "ON" for 20 or 30 minutes, so it does seem to be heat related.... -
Buenas mi nombre es carlos me uni al foro porque estoy buscando el schematic de una sony vaio pcg-41217u otras formas de escribirlo son 1p-0117j01-a012 mbx-237 numero de placa revision 1.2 o Sony VPCSB (MBX-237), en fin me gustaria y ayudaria un monton si alguien me puede dar dichi svhematic para hacer las mediciones de una laptop de la mencionada anteriormente(Sony VAIO PCG-41217U) con el fin de repararla dejo de funcionar solo prende el led de la bateria al pulsar el boton de power el disco empiesa a hacer ruido de actividad pero los leds del frontas no reflejan acividad y no enciende la pantalla.... -
Has anybody had the problem of the digital clicking from the volume control coming through the speakers. I guess the mute should activate as everything seems to have a mute from the analogue switch LC7822 to prevent output of stuff on the speakers but the mute circuits are really complex. The pcb is very badly manufactured as if it is over etched and not cleaned properly before being screen printed because I have fixed one fault but a wide track lifted off real easy with very little heat requiring extra repair. I dread touching the board so would like to go straight to the problem if someone has...05-21-2023, 05:32 AM -
New to Audio equipment. Received this 7.2 Surround Sound system - had a blown channel and fixed that (0.22 ohm resistor, 2 transistors, and 1 100 ohm replaced)
All channels now work. However, when I raise the volume with knob or remote, it doesn't work smoothly - you can heard distortion, and some speakers don't seem to work at max or somewhere in between..
First thought was the actual audio switch - but then Remote volume control shouldn't have this problem, but it does.
Second thought was the ribbon cable from front display to control board (V-Flex,...
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