Old Galaxy DX99v Echo Board EPTOSSB50B

[2315 Robert]

Looking for this board. My talk back still works but no echo. Which is interesting. Anybody know which smd could be the culprit. Thank you.

 

[Robb]

http://www.cbtricks.com/radios/galaxy/dx99v/dx99v_talkback_mod_smt.htm

http://www.cbtricks.com/radios/galaxy/dx99v/graphics/dx99v ssb50c_echo_sch.gif

http://www.cbtricks.com/radios/galaxy/dx99v/index.htm

 

[2315 Robert]

http://www.cbtricks.com/radios/galaxy/dx99v/dx99v_talkback_mod_smt.htm

http://www.cbtricks.com/radios/galaxy/dx99v/graphics/dx99v ssb50c_echo_sch.gif

http://www.cbtricks.com/radios/galaxy/dx99v/index.htm

Thank you for the reply. Do you know which IC's on this board actually echo time and delay? I appreciate you responding to my posts. It really does help.

 

[2315 Robert]

Forgot to add that resistors, caps. and diode all check good. Thanks again.

 

[Robb]

Think it might ne best to start out a bit simpler. Like, making sure all of the header cables are seated and have good connectivity. Be surprised how many Galaxy problems are found in these areas. Never overlook the obvious . . .

 

[2315 Robert]

Think it might ne best to start out a bit simpler. Like, making sure all of the header cables are seated and have good connectivity. Be surprised how many Galaxy problems are found in these areas. Never overlook the obvious . . .

Copy, will DVOM those to connects before continuing with the search for a new board. Smart. Thank you.

 

[2315 Robert]

Copy, will DVOM those to connects before continuing with the search for a new board. Smart. Thank you.

While probing the board orange and green wire came off.

 

[2315 Robert]

While probing the board orange and green wire came off.

Cant find a good pic of the solder side of the B. That would be to easy.

 

[2315 Robert]

Think it might ne best to start out a bit simpler. Like, making sure all of the header cables are seated and have good connectivity. Be surprised how many Galaxy problems are found in these areas. Never overlook the obvious . . .

Figured out where to reattach. Robo and VC still works. Good advice but no dice. Thank you again for your input.

 

[Robb]

Did you say that you already checked the diodes on that board?
Cleaned the switches for it?

 

[2315 Robert]

Did you say that you already checked the diodes on that board?
Cleaned the switches for it?

Affirm. Have had this radio for 20 years and has been a love/hate relationship. It is super stable now so I want it to work right. Boom echo gone. Got the green and orange reattached robo and vc works. The 1 diode shows good. Do not have a great magnifier but I think I can see everything.

 

[2315 Robert]

Affirm. Have had this radio for 20 years and has been a love/hate relationship. It is super stable now so I want it to work right. Boom echo gone. Got the green and orange reattached robo and vc works. The 1 diode shows good. Do not have a great magnifier but I think I can see everything.

Going to give another day and have another look.

 

[2315 Robert]

Going to give another day and have another look.

Think the diode was showing 533 on the meter. Correct polarity required for measure.