I have a Apex DT250A Digital Converter Box. I have almost no audio. If I turn up the volume on the box to max and the volume on the TV to max then I can hear the audio very faintly.

The picture is great and closed captioning works great.

To make sure it is not a TV/cable problem I swapped the cables from the DTV converter with that of the DVD player and still no audio. Used the same cable with the DVD player to the same inputs on the TV and I have audio. So it is not the TV or the cable. -

 

Hello,

Is there a mute function somewhere activated?

Bertus

 

Hello,

Is there a mute function somewhere activated?

Bertus

Thanks bertus; mute is not activated,i have another same model box that works good,besides there is still sound but it's too low, one has to turn sound on tv max to be able to listen good sound but very faded awy

 

Hello,

Is MTS activated (select second audio channel) ?
See manual page 15.

Bertus

 

Hello,

Is MTS activated (select second audio channel) ?
See manual page 15.

Bertus

Thanks Bertus; but it's not it,MTS is audio 1 or Audio 2 depending on the station,some station only provide Audio 1 and those that provide audio 1 and Audio 2 the volume on them is the same

 

Hi guys; i had this Ota converter box in my scrap and the issue is sound is too low ,could it be this Chip U4 D4558?http://www.powermos.com/Uploads/download/D4558-40V SPEC Simplication.pdf

 

Thanks bertus; mute is not activated,i have another same model box that works good,besides there is still sound but it's too low, one has to turn sound on tv max to be able to listen good sound but very faded awy

 

HI folks thanks for helping; ok i tested U4 and Q19 and results are in pic; also i have another Apex same model# and swapped the Power Sup and same result,also the mute is ok,the sound is audible mut has to all the way up on the box and on the TV,thanks again and have a Happy New Year

 

Here U4 D4558 , i had previous taken measurements with tuner as ground ,but i learned that pin 4 and 5 are ground , i went to take measurements again but now i used pin 4 as ground and pin 8+ and i have 4.8 volts DC.