V911's NEW RX!
Yesterday I bought two 9998 and four V911.
I found V911's RX is changed!
REV01 is newest number(perhaps......)
...and more photos,so see next pages.
Perhaps I have all version of V911's RX.
If You have REV03,please tell me.
KKDDMM, Thanks for sharing all the photos. It's very interesting.
Where did you buy all these 9998, and v911s? The 9998 looks new. However, one flybar weight is already missing? Since you have almost all versions of the V911 Rx, you might want to compile a list of Board name, Rev, and Release Dates. I did such a reference table for the WL-V929. I noticed that the V911 did a similar thing here. The board name went from WL-4CH01R to WL-4CH02R and then they reset the Rev number.
Daryoon had already pointed out that the later Revs have replaced the cylindrical crystal with a SMD. It will make repair more difficult in the future. But I also hope that the new SMD crystal will hold up better than the cylindrical one, so that replacing it would be a moot point.
What caught my eyes was the writings on the "new" WL-4CH02R REV 01 2012.05.29 board. If you read a little bit of Kanji, you might pick up that it says: 老飞机, I think. I couldn't make out the 2nd word, because the wire was in the way. But if it is what I think it was, it means "old aircraft".
Then you also see in a couple places, where it say "Old_Sev..." Part of it is covered with white glue. It makes me wonder, why this "newest" board has all the references to "old" stuff?? :confused:
>KKDDMM, Thanks for sharing all the photos. It's very interesting.
You are welcome.
>Where did you buy all these 9998, and v911s?
I bought at TRADE-CENTER of TOYS in SHENZHEN.
I bought a lot of TOY-Helis at there.
>The 9998 looks new. However, one flybar weight is already missing?
Yes,already missing one weight,but it does not become a problem.
Because I am thinking to make NEXT TANDEM-MOD.
The MOD needs two frame and two RX(so I bought two 9998),
one flybar of 9998 and one flybar of V911.
I got two 9998,and one of them has a perfect flybar,so it is enough for me.
>I noticed that the V911 did a similar thing here.
>The board name went from WL-4CH01R to WL-4CH02R and then they reset the Rev number.
I noticed "WL-4CH02R", after reading at your comment.
>It makes me wonder, why this "newest" board has all the references to "old" stuff??
Yesterday,I compared "WL-4CH01R REV05","WL-4CH01R REV06" and "WL-4CH02R REV01"
I found WL-TOYS changed servo-case(It is unknown whether contents have changed or it is not).
Only servo-case of "WL-4CH01R REV06" has a stamp as "WL-TOYS".
So that plint"OLD SEV"means "OLD SERVO",I think.
And I think that this plint is "cautions at the time of repair."
And now,I don't know,what is the best RX.
"WL-4CH01R REV05 Old-servo"?
"WL-4CH01R REV06 New-servo plus-repair"(see my other photos)?
"WL-4CH02R REV01 Old-servo"?
Oh, I didn't pay attention to your Location. Guess reading Chinese shouldn't be a challenge for you. :) Shenzhen must have an abundance of these toys. You are in a good place.
I thought for a moment that Old_Sev means Old_Servo, especially that they have a pair of them written right next to the servos. But they sure have an interesting way of coming up with abbrev. ;)
When you get a chance, could you post pics of these different servos?
10 hours later...
(I'm now working.)
I compared 3 version.
01R Ver05 (20111207)
02R Ver01 (20120529)
01R Ver06 (20120615)
Only Ver06's servo has seal as "WL"
Ah thanks, I see what you mean now. Can't see what has been changed from the old to the new. And with the newer picture, I see that I made a mistake on that 2nd word. May be it just means old servo after all. But again, newer R2 board sports older servo? Confusing.
I'm not too sure what you meant by Rev06 is repaired? Actually lots of solder points didn't look factory. Perhaps these have all be repaired and resold?
KKDDMM, dear friend, I'll be at Shenzhen next mont and im looking for to go to some RC stores, and toys when I'm there.. Can you suggest to me any place?
You can go trade-center of TOYS.
I always buy V911 at there.
I have REV:07 :)
But cannot say what advantage or disadvantage this version has. I only own this one.
Now,I can not understand the reason of "02R-VER01"......
REV.11 - Is this the latest one?
Here is the front view of the receiver controlling my stock V911 Pro, bought from BG last September and delivered last week. Markings read «WL-4CH01R REV:11», dating December 30, 2013.
I guess the main difference from the earlier revisions in what looks like the latest V911 receiver is a new, flat 16.000 MHz crystal which takes the place of the old cylindrical one.
Aside from the new crystal I spotted a couple more things on the newer PCB which still puzzle me. One is a diode symbol amidst two adjoining solder points, regularly tinned yet untouched, placed just above the upper set screw - guess what that means.
There's another suspicious pair of solder points - as above - with L1 and L2 markings on the left side above the servo's motors line. That is, left side holding the heli upturned in nose-in position - V911's receiver is actually mounted upside down on the frame.
My small fleet is comprised of three CP and three FP birds. However, since this is the first and only V911 I have, I can't go through any former PCB revisions so I cannot do any comparison.
I may as well have missed possible further deep info but this bird earned so many praises, comments, upgrades, mods and whatnot that I really can't spend all of my free time going hog-wild through hundreds of threads spread over many forums... So I'll stay tuned here for further informations or useful links nailing the subject from other V911 pilots. Anyone deep into V911, please chime in!
Back to the point. After having read many forum pages about homemade navigation lights circuits, I wonder... I wonder...
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