Sony KDL-46S4100 no pic or sound help.

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

1- disconnect both ribbon cable from T-CON to LCD, and inspect them if there any line missing or became short not to the end of the cable.

2´- keep them out and play signal from outsource to HDMI 1, you should hear the sound. if yes, get the ribbon cable back, if no Picture you have T-CON fault. or bad soldering, reflow it witth heat gun.. give try you will not lost ..

Thanks Diah; i inspected Ribbon cables and all seems good,and with ribbon cables disconnected i connected video outsource to hdmi 1 and still no sound,
i grabbed my laptop with Sony KDL 46S4100 schematic and checked most of the voltage points that i could check with my Fluke 87, and all components on the A board checked good, i fallowed the fault of no sound tree and it says check for 15V at CN1/pin 1 on A-Board a) 15V Present. Replace A-Board.

either A board that i got from Jimmy is faulty too or is a miss-mach for this model,i heard that most replacement A boards out there will not work with this LCD tv set,i'm going to try to get a refund.and i don't know if i'm going to trust any other a board dealer.

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

Thanks Diah; i inspected Ribbon cables and all seems good,and with ribbon cables disconnected i connected video outsource to hdmi 1 and still no sound,
i grabbed my laptop with Sony KDL 46S4100 schematic and checked most of the voltage points that i could check with my Fluke 87, and all components on the A board checked good, i fallowed the fault of no sound tree and it says check for 15V at CN1/pin 1 on A-Board a) 15V Present. Replace A-Board.

either A board that i got from Jimmy is faulty too or is a miss-mach for this model,i heard that most replacement A boards out there will not work with this LCD tv set,i'm going to try to get a refund.and i don't know if i'm going to trust any other a board dealer.

Also i checked at Jymmy.com the KDL A board and look them closely and KDL46S 4100 A board is the Same as KDL40S4100, is that true?

[Diah]

Re: Sone KDL-46S4100 no pic or sound help.

keep in mind, some HDMI cable not compatible to ARC Signal, so TV will not Change source to HDMI when signal come in. i have one HDMI cable o this unless i change the input source. other one i have i do the job with out going to source input. so check ur cable source on other TV. ARC most working, when you play signal then you turn TV ON. if 15V present, try this before you clame main board fault.

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

keep in mind, some HDMI cable not compatible to ARC Signal, so TV will not Change source to HDMI when signal come in. i have one HDMI cable o this unless i change the input source. other one i have i do the job with out going to source input. so check ur cable source on other TV. ARC most working, when you play signal then you turn TV ON. if 15V present, try this before you clame main board fault.

My HDMI cable works on My LCD VizioVW42L,My Samsung Syn Master

also the Jimmy A board is P#1-857-092-41,LTY460HB10

the original Sony board that was there is;Part# 1-857-092-21, LTY460HB08

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

My HDMI cable works on My LCD VizioVW42L,My Samsung Syn Master

also the Jimmy A board is P#1-857-092-41,LTY460HB10

the original Sony board that was there is;Part# 1-857-092-21, LTY460HB08

Update i removed Jimmy's A board and installed the old A board that came with tv and it does exact same thing,it has the 15v for sound and all the other voltages everything matches,changed HDMI cables same thing,
and with HDMI source connected and video playing i never had sound,i turned tv upright and at one time i had OSD and raster and i could change settings on OSD but at some movement it goes away,i don't have tv on stand i have tv laying flat on the table,when i move a little bit OSD or raster disappears, but when OSD or raster disappears i have turn off and back on and it's not always i get OSD it's just when the tv feels like, what a crazy fault,i think it Also could be T-con or LCD screen go figures.

[Diah]

Re: Sone KDL-46S4100 no pic or sound help.

good, this of sure bad soldering, since you have 2 main board, then i would re solder the PSU it may there dry solder. to the eyes its look fine but in fact its dry one.

also give attention to the socket wiring between PSU and main board

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

good, this of sure bad soldering, since you have 2 main board, then i would re solder the PSU it may there dry solder. to the eyes its look fine but in fact its dry one.

also give attention to the socket wiring between PSU and main board

Thanks Diah; I'm waiting for a T-con, maybe i will be lucky this time, i talked to a person that also repairs old LCDs here in my area and he advised me that it could be T-con despite having the 12v from A board, After i install T-Con if not solve issue will give a try to Power supply solders.

Diah do you know is these boards are soldered with free lead or regular lead solder.

Also Can you please advise which points in the power supply i should re-solder! check the power supply in the link bellow, thanks in advance

http://www.ebay.com/itm/Sony-1-857-0...3D371353169972

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

Thanks Diah; I'm waiting for a T-con, maybe i will be lucky this time, i talked to a person that also repairs old LCDs here in my area and he advised me that it could be T-con despite having the 12v from A board, After i install T-Con if not solve issue will give a try to Power supply solders.

Diah do you know is these boards are soldered with free lead or regular lead solder.

Also Can you please advise which points in the power supply i should re-solder! check the power supply in the link bellow, thanks in advance

http://www.ebay.com/itm/Sony-1-857-0...3D371353169972

Diah maybe with the service manual you will be easier to advise me on what points and components i should retouch thanks

[snme]

Re: Sone KDL-46S4100 no pic or sound help.

I'm waiting for a T-con

I would have wanted to hear sound before ordering more parts.
I suppose you have an antenna attached.
Maybe it is not tuned to an active transmission, thus the earlier suggestion to pump in video and sound via HDMI 1, yet if that input doesn't become selected that would not be a positive test.
The T-Con that I recently replaced in a KDL46W5500 was very crackly with slight bend stress to the board, and attempts at reflow in an oven didn't help, perhaps not hot enough.
It is good that you have backlight, which tends to be provisioned by a significant portion of the land area on Sony power supply boards.
I'm curious that you don't have the equipment mounted on stand. Is that because the disposer wasn't kind enough to supply the stand and remote control!

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

I would have wanted to hear sound before ordering more parts.
I suppose you have an antenna attached.
Maybe it is not tuned to an active transmission, thus the earlier suggestion to pump in video and sound via HDMI 1, yet if that input doesn't become selected that would not be a positive test.
The T-Con that I recently replaced in a KDL46W5500 was very crackly with slight bend stress to the board, and attempts at reflow in an oven didn't help, perhaps not hot enough.
It is good that you have backlight, which tends to be provisioned by a significant portion of the land area on Sony power supply boards.
I'm curious that you don't have the equipment mounted on stand. Is that because the disposer wasn't kind enough to supply the stand and remote control!

Thanks Snme; i did not try antenna with locals ,but i tried RF input chan 3 -4
also vcr RCA input,also my Laptop with HDMI output with a video stream and PC changes sound to tv but no sound on the tv,also tried My Roku 1 with Hdmi and no sound,i notice the optical red light is on on the board thought i did not try it, i do not have the stand and remote control cause the guys only threw out the TV and i don't know who did,
also i was able to see at some point the OSD menu for some time and i could change settings but it was not for long cause at slight tv move it went away,
i guess that upon turning on with HDMI connected to a source playing, at some time it shows OSD but it's not when i want it's only when tv wants,
i'm thinking of building a wooden stand to put tv upright to work better and do not have to move it.

[snme]

Re: Sone KDL-46S4100 no pic or sound help.

also i was able to see at some point the OSD menu for some time and i could change settings but it was not for long cause at slight tv move it went away,

Please elaborate, did you loose backlight when it stopped such display, or was backlight continuous?
How did you change settings without the remote control, and do you know what is the selected input which would be effective at any power on event.
I have an awkward feeling that the input selection can't be altered without a user confirmation, one way or another, but not certain.

[Diah]

Re: Sone KDL-46S4100 no pic or sound help.

Diah maybe with the service manual you will be easier to advise me on what points and components i should retouch thanks

you have 2 A Board. correct, i would consider to reheat the U1901.

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

you have 2 A Board. correct, i would consider to reheat the U1901.

Thanks Diah;can i use a heat gun? same way one uses to re-heat a PS3 CPU?

[Diah]

Re: Sony KDL-46S4100 no pic or sound help.

exactly, only be sure on smd parts around, better to cover all with type from both side top and down of the board.

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

Please elaborate, did you loose backlight when it stopped such display, or was backlight continuous?
How did you change settings without the remote control, and do you know what is the selected input which would be effective at any power on event.
I have an awkward feeling that the input selection can't be altered without a user confirmation, one way or another, but not certain.

Thanks snme;ok i connected my Laptop HDMI connect to HDMI 1 tv input and with Video stream running, the first time i had the display facing down on the table with just a quarter of the screen out of the table, so i could see the screen, and noticed after turn it on and off a couple times i saw raster, but as soon a moved the tv to see the full screen OSD and raster disappeared,then i put the tv upright holding it with one hand, turned it off and on a couple times and at onetime i had full OSD and with one hand i pressed menu and i had perfect OSD i used volume up down to go to pic settings and chan up down to get what setting to adjust, but as i said it's hard cause at slight move it goes to just backlight,i'm trying to build a stand to get the display stand still and try to see if i can try to change inputs, i'll keep you posted,also waiting for the T-con board.

[snme]

Re: Sone KDL-46S4100 no pic or sound help.

Ok i will resume to my thread no big deal.
By the way what is IPA?

Isopropyl alcohol.
It is very volatile and mostly safe to use as a cleaning compound.

[budm]

Re: Sony KDL-46S4100 no pic or sound help.

You should post that you did find blow fuse that I had you checked earlier in the thread and the what you are getting now so people that follow this thread will know what is going on:
https://www.badcaps.net/forum/showth...116#post636116

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

Isopropyl alcohol.
It is very volatile and mostly safe to use as a cleaning compound.

Thanks snme; and sorry to use your t-con board thread.
I figure that it would be alcohol,and i just used 91% Isopropyl alcohol and still same thing ,i'm waiting on the T-con board if the stripe doesn't go away i guess it's time to take it to where it came from ,the dumpster,i assume this could be a bad panel if nobody says otherwise.

[ivtec]

Re: Sone KDL-46S4100 no pic or sound help.

Thanks snme; and sorry to use your t-con board thread.
I figure that it would be alcohol,and i just used 91% Isopropyl alcohol and still same thing ,i'm waiting on the T-con board if the stripe doesn't go away i guess it's time to take it to where it came from ,the dumpster,i assume this could be a bad panel if nobody says otherwise.

And here the pic attach.

[snme]

Re: Sone KDL-46S4100 no pic or sound help.

Thanks snme; and sorry to use your t-con board thread.
I figure that it would be alcohol,and i just used 91% Isopropyl alcohol and still same thing ,i'm waiting on the T-con board if the stripe doesn't go away i guess it's time to take it to where it came from ,the dumpster,i assume this could be a bad panel if nobody says otherwise.

The squirt bottle that I have says 99.8%, but that's probably not important right now.
EDIT: https://www.youtube.com/watch?v=VOmD-xqK2Es
Have you examined the connectors and ribbon with high magnification for any flaws?
To repeat from the other thread, you might have missed? At which time the "above" was some confusing information about when sound was present or not.

I am now quite confused as to when you did and did not have sound. It would help if you can re-express the above comments in more carefully constructed grammar, preferably in the opening thread, with a view to bring conclusion to this story soon.

By the way, that other thread was not mine, but it would help to keep your story in one place.