Bush 50/122f no audio at all

[comptek]

Hi this has no audio output either on speakers /headphones, i have checked settings and service menu for problems all ok
all voltages are ok

mainboard is a horrid T.MSD309.B81C 12176 all voltage regulators check out ok

any pointers will be great thanks guys

[ReeceyBurger123]

Re: Bush 50/122f no audio at all

Let me guess this uses a 1517P Ic for the audio ?

[comptek]

Re: Bush 50/122f no audio at all

not the big 14 pin one like the old ones this is surface mount

[ReeceyBurger123]

Re: Bush 50/122f no audio at all

Got an image of the Ic buddy ? Also have you checked the output and input for it ?

[comptek]

Re: Bush 50/122f no audio at all

Got an image of the Ic buddy ? Also have you checked the output and input for it ?

Here you go bud

[ReeceyBurger123]

Re: Bush 50/122f no audio at all

Hmm looks like these boards use the main speaker amp to drive the headphone out as well. Have you checked the voltages going to the amp against the schematic ? On my channel I have a video called "Technika Led Tv No Sound Repair" the amp Ic was getting the voltages but nothing was coming out.

[comptek]

Re: Bush 50/122f no audio at all

Hmm looks like these boards use the main speaker amp to drive the headphone out as well. Have you checked the voltages going to the amp against the schematic ? On my channel I have a video called "Technika Led Tv No Sound Repair" the amp Ic was getting the voltages but nothing was coming out.

hi Reece i did see your video and yes no audio at all signal going in but nothing out robbed a TPA3123 off a board and its now working great its now 25w instead of 15w lol

[ReeceyBurger123]

Re: Bush 50/122f no audio at all

Wow can you feel the audio power from the speakers with 25w ? Haha lol glad to hear its fixed, my suggestion would be to heatsink that Ic mate Have you an image of your work ?

[comptek]

Re: Bush 50/122f no audio at all

Wow can you feel the audio power from the speakers with 25w ? Haha lol glad to hear its fixed, my suggestion would be to heatsink that Ic mate Have you an image of your work ?

Here you go bud
The sound is amazing when the Base line kicks in "NOT" 😊

[comptek]

Re: Bush 50/122f no audio at all

** ADMIN** can you edit the title heading should read BUSH 50/211F and not Bush 122f thank you

[comptek]

Re: Bush 50/122f no audio at all

Wow can you feel the audio power from the speakers with 25w ? Haha lol glad to hear its fixed, my suggestion would be to heatsink that Ic mate Have you an image of your work ?

put a thermal pad underneath

[ReeceyBurger123]

Re: Bush 50/122f no audio at all

Wait is that a different board lol the cap is different ? Also yeah TP will work

[comptek]

Re: Bush 50/122f no audio at all

Wait is that a different board lol the cap is different ? Also yeah TP will work

no its not, the original cap bulged with the heat lol
it was not quite under the foil i took the big one out lol

[ReeceyBurger123]

Re: Bush 50/122f no audio at all

Lol fair enough