| Author |
Message |
    
Dale
Senior Member
Username: Dale
Post Number: 2420
Registered: 12-2002
| | Posted on Saturday, January 08, 2022 - 10:11 am: | 
|
this version is the black face one ..everything works tx and rx ..the problem is theres no sound coming outta the speaker...i tried several mics including the stock mic but didnt change a thing . so i tried a external speaker thinking that was it nope didnt work ..double checked the squelch and rf gain there where they should be ...im stumped guys
dale/a.k.a.hotrod
cef426
cvc#64
454 [dx numbers]
38lsb
|
Dale
Senior Member
Username: Dale
Post Number: 2424
Registered: 12-2002
| | Posted on Wednesday, March 23, 2022 - 8:52 pm: |
|
just weanted to bump this back up to the top
dale/a.k.a.hotrod
cef426
cvc#64
454 [dx numbers]
38lsb
|
Ke0koy
Member
Username: Ke0koy
Post Number: 51
Registered: 12-2018
| | Posted on Sunday, March 27, 2022 - 3:53 am: |
|
With no audio, how do you know the RX is working? The S-meter?
Does the PA work?
If not, the audio IC might be bad, but it could also be a bad capacitor. I am no expert, but if it were me and I had no real test equipment, I would first touch pin one of IC5 with a piece of wire to see if the noise my body is picking up makes it into the speaker. If it does, then the audio amp is working and the problem is before it. If that does nothing, I would still test to see if the audio is making it to the IC by connecting my computer's mic or line-in jack to IC5's input (pin 4 is ground and pin 1 is audio in) and let my PC sound card try to do the amplifying (be sure the sound card is passing that jack to the PC speakers first). That will tell you if audio is at least making it there.
I'll wait to hear back before making further guesses as that will narrow it down significantly. |
Dale
Senior Member
Username: Dale
Post Number: 2425
Registered: 12-2002
| | Posted on Saturday, April 02, 2022 - 10:28 am: |
|
yes i can tell radio is reciving thru the s meter..if i crank the volume all way up and put radio right to my ear i can just hear it.lol i dont have a pa speaker so i didnt try that..
dale/a.k.a.hotrod
cef426
cvc#64
454 [dx numbers]
38lsb
|
Ke0koy
Member
Username: Ke0koy
Post Number: 52
Registered: 12-2018
| | Posted on Sunday, April 03, 2022 - 5:59 pm: |
|
First try another speaker to see if that is the problem. It might also be that the ext. speaker jack is not passing the audio to the speaker. There's a little spring contact that disconnects the internal speaker when a plug is inserted. Test it with an external speaker next. You said you don't have one, but if you can't at least fashion one, I would recommend you stop here and send it to a tech. |
