| Author |
Message |
    
Panamared
New member
Username: Panamared
Post Number: 1
Registered: 1-2005
| | Posted on Thursday, January 13, 2005 - 2:07 am: | 
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I'm new to the board so hello every one.
I used a freq. mod from this board on my mirage 2950 and it works great! It's the mod for 26.000-to 32.000.. Is there any others?also I've heard 1000 ways to put talk back into these radios but none have worked so far.any suggestions?
thanx. Justin |
Kid_vicious
Intermediate Member
Username: Kid_vicious
Post Number: 138
Registered: 9-2004
| | Posted on Thursday, January 13, 2005 - 4:16 pm: |
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welcome to the forum! i have a lot of mods for this radio. tell me what you want to do specifically and i'll see if i have the mod. here are a couple to get you started.
here's a good talkback mod. it will provide a nice sounding audio.
remove D-78 or install a SPST switch in line to turn it on and off.
replace D-115 with a .0047uf ceramic disc capacitor.
thats it!
for a much improved receiver, remove Q18 (a 2sc1674) and replace with a 2sc2999. retune L8 and L9 at center of band for best rx.
hope this helps. |
Panamared
New member
Username: Panamared
Post Number: 2
Registered: 1-2005
| | Posted on Friday, January 14, 2005 - 4:20 pm: |
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Thanx Kid vicious.I forgot to mention the board in this rig is EPT2950132 I don,t know if that makes a difference for the mods?
I would like to try any mod that does'nt require major surgury..lol..
Do you have a schematic for this board?
I can't seem to locate D-78 or D-115.
Some times I over look stuff..
I also did the mod where you program the split to 6.000 Mhz (because this radio only goes 26-32.000) set the split to neg. then push manual
set to channel 1 and key the mike then push manual agin to get the freq. display and your on 20.965 or if you set the split to (+) and set to ch.40 and key the mike you go to 33.4050 only thing is when I go low I can only tune freq. up and ond 33.405 I can only tune down.
any way thanx again if you could send me a schematic I would owe you 1000 favors..
panamared420@gmail.com |
Panamared
New member
Username: Panamared
Post Number: 3
Registered: 1-2005
| | Posted on Friday, January 14, 2005 - 6:41 pm: |
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I made a type-o the board in my Mirage is a
EPT295013Z
sorry... |
Kid_vicious
Intermediate Member
Username: Kid_vicious
Post Number: 141
Registered: 9-2004
| | Posted on Saturday, January 15, 2005 - 7:46 pm: |
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i think thats the same board i have, i'll check tonite when i get home. i dont have a schematic but i will give you a link for a parts layout tomorrow.
matt |
Vtex1
New member
Username: Vtex1
Post Number: 1
Registered: 3-2005
| | Posted on Thursday, March 10, 2005 - 2:37 pm: |
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i have a ?????. i have a rci 2990 i got use. it was working fine for a year then it just quit. the tx lighs comes on when you key up .but the needel wont move evey on my dosy.i can hear it click like it always has done in the pass... would it be some thing in the amp??? or is it just junk now.. ??? thanks... oh ya by the way i am new to the bord so hi to every body.. 73's phil |
Inspector
Intermediate Member
Username: Inspector
Post Number: 137
Registered: 12-2001
| | Posted on Thursday, March 10, 2005 - 8:08 pm: |
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If the recieve AND transmit are dead, I would look at the main-board's driver and final. Also, if the radio has been tuned-up for more output, you may want to look at the power supply's voltage regulators mounted on the rear or the radio...these tend not to last too long after a BIG tune up, without an almost total re-build of the power supply and adding cooling fans. |
Kid_vicious
Intermediate Member
Username: Kid_vicious
Post Number: 278
Registered: 9-2004
| | Posted on Thursday, March 10, 2005 - 9:48 pm: |
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vtex1, the 2990,if its the old style, (not DX)
has a common problem. when you leave the power button "on" and remove power from the radio, it can mess up the microprocessor. if this is the case, i dont know what the cure is, short of replacing it. check ranger's website for more info on this.
if its really old, it has a watch style battery behind the display that needs to be changed after years of use. i would do a search on this forum, i know this subject has been discussed many times on here.
matt |
