Need Midland 79-290 Service Manual

[KennyD]

Thanks for the service manual Sonoma. It helped with some things but it does not contain the alignment procedures for SSB. The manual is lacking a lot. Does anyone have more information on aligning these radios?

 

[sonoma]

that is all the manual has on it. you have to figure it out with the formulas they have in it. it is very confusing since no one ever set down and translated it. here is some notes I had made on my manual years ago. to long ago so not sure how acurate it is. look inside the radio and see if they match, I think the info is right.

am power VR3
amc ( am mod level) VR11
alc ( ssb power) vr8
tx meter adjust VR7
S meter adj am and ssb VR1
squelch threshold VR12
TX only adjustment vr5
AM/USB/LSB OSC ADJUSTMENTS T16-T15-T14

hope this helps. all I can find on that radio. not much was ever put out on it for some reason. maybe some one else will have more on it. I have only seen maybe 2 of this in 15 years. my buddy has been in business at his shop for over 40 years and he has never seen one of these radios.

 

[OH6FJN]

Hi all.

If it's possible. Could someone send that service manual to me.

de, OH6FJN

 

[OH6FJN]

Thanks for pdf:s, KennyD.

de, OH6FJN

 

[KG5ZGG]

Can anyone help me with information on how to fix a dim display for my midland 79-290? Everything else works fine it just does not . Its just very dim. Thank you.

 

[Rick Zuniga]

Before I ask for the service manual for my 79-290, does anyone know if it has the wiring layout for the 4-pin connector of the mic? The 4-pin connector completely disconnected from the wiring, and I don't know what wire goes where to solder it back up.
I even contacted Midland directly, and they said that they no longer offer a replacement mic for this unit, which makes no sense to me, but oh well.

 

[ham0099]

Ii's an old thread but can someone send me the Service Manual of the Midland 79-290. Mny Tnx in advance.
73 ham0099

 

[doffo]

I second this. I have 3 of the radios, but would be nice to have the service manual on hand.

 

[ham0099]

Mny TNX to Sonoma for the service manual.
73 de ham0099

 

[Woody-202]

I second this. I have 3 of the radios, but would be nice to have the service manual on hand.

I'll third that one. I have 2 working and 1 in need of repair

 

[doffo]

I'll third that one. I have 2 working and 1 in need of repair

I have been meaning to do the clarifier unlock, but unsure if I do the Method 1 or method 2 that I found online.

 

[Klondike Mike]

This thread has been going on for over 10 years with no results. If someone would identify what is the main board in this radio, we could probably cross reference another radio with the same board. From my research I think it is a Uniden PC879 or PB010 but am lacking confirmation on the board numbers.

 

[TM86]

This thread has been going on for over 10 years with no results. If someone would identify what is the main board in this radio, we could probably cross reference another radio with the same board. From my research I think it is a Uniden PC879 or PB010 but am lacking confirmation on the board numbers.

Only identifying info I can find on the board in my 79-290:

HWA YUNG
HY290M

Looking down from the top with face of the radio facing towards you it's slightly to the back and left of center between C21 and C302 in a little rectangle if anyone cares to deny or confirm.

 

[Klondike Mike]

HWA YUNG - Yikes!! I have studied schematics for over the 500 kits I have (and more) and not one of them use this manufacturer. Midland picked a real winner with this one.

As for the claim of copyrighted material, that is bogus as the manufacturer is long dead and radio manufacturers make no such claim.