| Author |
Message |
    
615_ri
New member
Username: 615_ri
Post Number: 7
Registered: 5-2006
| | Posted on Tuesday, May 30, 2006 - 12:19 am: | 
|
i recently did the npc-rc mod to my 9000. i had to go back and realign one of the pots to the correct wattage so i went back and resoldered tp7, now i canot get a voltage reading form the other test points. was wondering if you could point me in the right directions. the radio was working perfect even when i ran it but the relizaed that i could get a reading. the radio still powers up .thanks ken. |
Dale
Intermediate Member
Username: Dale
Post Number: 433
Registered: 12-2002
| | Posted on Tuesday, May 30, 2006 - 9:50 am: |
|
why did ya have 2 resolder tp7?should of retuned all the vrs for best pep |
615_ri
New member
Username: 615_ri
Post Number: 8
Registered: 5-2006
| | Posted on Tuesday, May 30, 2006 - 10:16 am: |
|
i had to resoulder it so i could se the last two pots at 50ma and 100ma and without tp7 it wouldnt let me. |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1725
Registered: 9-2004
| | Posted on Tuesday, May 30, 2006 - 6:00 pm: |
|
is the mirror board making good contact with all the prongs?
take it out, and squeeze the prongs together gently with a pair of needle nose pliers, and then re-insert the mirror board.
make sure the cap is oriented the right way.
matt |
615_ri
New member
Username: 615_ri
Post Number: 9
Registered: 5-2006
| | Posted on Wednesday, May 31, 2006 - 12:18 am: |
|
the mirror board needs to be in when stestings those test points? if so then can i test tp7 with out tp7 soldered in some how??
thanks for the help guys i really cant wait tog et the raido back on the air. |
Tech808
Moderator
Username: Tech808
Post Number: 10150
Registered: 8-2002
| | Posted on Wednesday, May 31, 2006 - 12:30 am: |
|
615_ri,
Go to the area/topic below and follow the Step by Step instruction's with pictures.
Subscriber (Preview)
» Tips and Tricks
» Voyage VR9000 NPC-RC Modification
» NPC-RC Modification
OR
VR9000 NPC-RC MODIFICATION CLICK HERE!
Hope this help's,
Lon
Tech808
CEF808
N9CEF
CVC#2 |
615_ri
Junior Member
Username: 615_ri
Post Number: 10
Registered: 5-2006
| | Posted on Wednesday, May 31, 2006 - 8:30 am: |
|
ok tech 808, i did all that but my problem is i canot get a reading off the test points with my multimeter.... not sure the symptoms... |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1734
Registered: 9-2004
| | Posted on Wednesday, May 31, 2006 - 10:53 pm: |
|
ahhh, i think i may have the solution here.
you are testing for current right?
to do that, its not the same as testing for voltage.
instead of red lead to positive and black to ground, you need to insert the meter leads "in line" with the wire coming from TP7.
in other words, unsolder the wire coming from TP7. black lead to TP7, and red lead to the wire coming from it. if the current reads negative; switch the leads.
make sure you have the meter set on milliamps.
if you have already attempted to measure the current in the incorrect fashion you may have blown the internal fuse in your multimeter.
open it up and check the fuse; then do it the way i layed out here.
good luck, i hope thats it,
matt |
615_ri
Junior Member
Username: 615_ri
Post Number: 11
Registered: 5-2006
| | Posted on Thursday, June 01, 2006 - 8:41 am: |
|
sorry vicious but i dont understand |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1742
Registered: 9-2004
| | Posted on Thursday, June 01, 2006 - 6:40 pm: |
|
no, I am sorry.
i did not pay enough attention to your posts, and was confused.
please disregard my previous posts. DOH!
now, i went through the mod that Tech 808 provided, and you should too, just to make sure we are on the same page.
"i recently did the npc-rc mod to my 9000. i had to go back and realign one of the pots to the correct wattage so i went back and resoldered tp7"
i think you meant that you had to realign one of the pots for correct CURRENT, not wattage.
i dont know why you had to do this unless you messed with it after you already set it, as the bias adjustment is made before you even volt the final.
it seems to me that if you made the adjustment correctly the first time, you should be able to do it again.
something doesnt add up here.
i dont understand how you could have done it correctly once, and now cant do it???
seems more likely that you got a radio with the mod already done to it, and turned the wrong VR looking for more power.
hmmm????
assuming that you were the one to do the mod, then the only thing i can guess is that you have the multimeter set on voltage instead of current.
although i doubt that if you had done it once already that you would have made this mistake.
again, something doesnt add up here.
matt |
615_ri
Junior Member
Username: 615_ri
Post Number: 12
Registered: 5-2006
| | Posted on Thursday, June 01, 2006 - 7:47 pm: |
|
yeah, im not sure what the problem is, tp7 is now gone and i cant adjust those pots. they arent set right now |
615_ri
Junior Member
Username: 615_ri
Post Number: 13
Registered: 5-2006
| | Posted on Thursday, June 01, 2006 - 8:20 pm: |
|
its vr 10 20, and 11 i need to adjust using the tp7 tp8 and tp9 |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1747
Registered: 9-2004
| | Posted on Friday, June 02, 2006 - 12:10 am: |
|
reomve the wire you added going from TP7 (rear hole) to 13.8 volts.
remove it completely.
using a short piece of wire, jumper the two holes left after TP7 clip was removed.
make sure your meter is set to milliamps.
to set driver bias:
Connect the DVM-Red meter lead to TP9
Connect the DVM-Black meter lead to TP8
(mirror board OUT of radio)
Turn the radio ON
Adjust the radio controls to SSB LSB or USB mode, No Modulation (mic gain all the way down)
Depress the microphone key
Using a PLASTIC (or other non-metallic) tuning tool
Adjust VR11 for 50ma reading
Turn the radio OFF
to adjust the final bias:
leave the red meter lead on TP9.
move the black lead to the jumper you just added.
turn VR 10 and VR20 all the way counterclockwise.(all the way down)
turn radio on to LSB or USB.
mic gain all the way down.
key mic.
adjust VR20 until the meter reads 50mA. (milliamps)
now adjust VR10 until the meter reads 100mA.
remove jumper, replace wire going from TP7 REAR HOLE (closest to the rear of the radio) to the 13.8 volts trace.
replace mirror board.
you should be good to go.
good luck,
matt |
615_ri
Junior Member
Username: 615_ri
Post Number: 14
Registered: 5-2006
| | Posted on Friday, June 02, 2006 - 8:43 am: |
|
thanks alot matt, thats exactly the answer i needed.
i did try to re solder tp7 back in there iwth no luck, ill try using the wire. ill get back to you when i get out of work. |
Therealporkchop
Advanced Member
Username: Therealporkchop
Post Number: 780
Registered: 11-2002
| | Posted on Friday, June 02, 2006 - 12:43 pm: |
|
It kinda sounds like he left the modifications in place and then put that test point connection back in place and inserted the mirror board.
If he did that, wouldn't you basically be sending too much voltage to some parts of that radio? If so, then something could be blown and that could be the reason why he isn't getting a reading.
Of course you might have a voltmeter that doesn't read milli-amps. If it just shows regulars amps on your meter you might as well forget it. You won't get any reading like that either. Been there, done that.
In the words of Rocky The Flying Squirrel..."Now here's something you're really gonna enjoy"...
I just crank those pots wide open cuz. I usually like to set mine the totally incorrect way and it's been running like that for 3 years now without any trouble and it's loud and proud. I set mine while whistling into the mic and watching the wattmeter. Once I see it all peaked out with nothing more to give, it's over...tuned.
Boy howdy...I hate to admit that one. But I did my 77 that way after I installed matched finals and it's been like that for 3 years or better. No problems at all. However I don't suggest you do it that way...wait around here until you figure it out or someone helps you figure it out.
Good Luck!!!! |
615_ri
Junior Member
Username: 615_ri
Post Number: 15
Registered: 5-2006
| | Posted on Friday, June 02, 2006 - 6:23 pm: |
|
i did the mod but missed the step to set vr10 and vr20 so now i needa go back and do that. |
615_ri
Junior Member
Username: 615_ri
Post Number: 16
Registered: 5-2006
| | Posted on Saturday, June 03, 2006 - 2:12 am: |
|
and i was using the correct meter. |
615_ri
Junior Member
Username: 615_ri
Post Number: 19
Registered: 5-2006
| | Posted on Monday, June 05, 2006 - 7:54 am: |
|
any other suggestions? |
Dale
Intermediate Member
Username: Dale
Post Number: 443
Registered: 12-2002
| | Posted on Monday, June 05, 2006 - 11:47 am: |
|
try posting somewhere else i guess |
615_ri
Junior Member
Username: 615_ri
Post Number: 20
Registered: 5-2006
| | Posted on Monday, June 05, 2006 - 5:36 pm: |
|
i dont know of any other websites. sorry thanks for the help |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 1760
Registered: 9-2004
| | Posted on Tuesday, June 06, 2006 - 12:20 am: |
|
615 ri, have you tried what i posted last?
if so, what happened?
matt |
