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Re: J3 display connector
I'm sending both since I don't know which display you're using. The best thing to do is use your DVM and check the continuity of the plug, paying attention to the key on the plug. I find it useful to print out these figures, write the wire colors, and then do the continuity test. Jack, W8TEE
On Thursday, March 14, 2019, 7:17:16 PM EDT, k7da <k7da@...> wrote:
I need some clarification on the J3 display connector.? which pin is not used? ? the one to the outside or the one inside? |
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Re: UGG worked then it didn't
Put some air flow on the 3.3V regulator and see what happens. Jack, W8TEE
On Thursday, March 14, 2019, 4:06:43 PM EDT, Vince Loschiavo <vince320@...> wrote:
Hi all, Got Teensy loaded, JackAl built, and interfaced with the display. All voltage measurements good to go, Got the display up, can see that the teensy was programmed correctly, but after several seconds (no touch but not worried about that at the moment). Display shut down. weird all voltages still good all over the board. (yea notice no heatsink on the 3.3 reg or 5v reg( will get to that). any quick suggestions that i should take a look at? any way to get the display powered up and get some kind of display to check that separately? Vince |
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Re: UGG worked then it didn't
We have almost doubled the size of the 3.3V regulator because it does get very toasty! Because I run the ?BITX at 12V, it's that regulator that needs an air flow more than the PA transistors. Right now, I'm just running it on a breadboard with a large heat sink, but I have a very small (1.25") fan that will cool it and is very quiet in both an audio and interference sense. If I start using any of the digital modes, I think I'll use one of the empty JackAl pins with a temperature sensor to turn on a second fan over the PA transistors. Jack, W8TEE
On Thursday, March 14, 2019, 4:13:38 PM EDT, Rick Price <rickprice48@...> wrote:
The 3.3 regulator has to have a heat sink or it will go into
thermal shutdown, and sounds like what is happening to yours.? The display
drawa a lot of current.? My heat sink, a CPU finned?block which I
tapped for a screw gets very, very hot.?It is at least twice the size of a
normal TO220 heatsink.? Remember to isolate the heat sink from the
regulator as the tab on the 3.3V is common to the output and cannot be grounded.
?
Rick
KN4AIE From: [email protected] [mailto:[email protected]] On Behalf Of Vince Loschiavo Sent: Thursday, March 14, 2019 4:07 PM To: [email protected] Subject: [JackAl] UGG worked then it didn't Got Teensy loaded, JackAl built, and interfaced with the display. All voltage measurements good to go, Got the display up, can see that the teensy was programmed correctly, but after several seconds (no touch but not worried about that at the moment). Display shut down. weird all voltages still good all over the board. (yea notice no heatsink on the 3.3 reg or 5v reg( will get to that). any quick suggestions that i should take a look at? any way to get the display powered up and get some kind of display to check that separately? Vince |
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?BITX V5 Board compatible with JackAL
All: Al and I have spent considerable time testing a couple of V5 ?BITX boards for use with our JackAl board. (See hamradiodesigns.com) No hardware modifications are required. We did have to make some minor changes in the software because of the new IF frequency. We expect to release a new software release for the V5 board in a few days. I will send out a notice when it is ready for download. We are also expanding the assembly manual with additional photos and narrative. That should be ready next week. The JackAl boards are being sold by QRPGuys.com. Jack, W8TEE |
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UGG worked then it didn't
Vince Loschiavo
Hi all,
Got Teensy loaded, JackAl built, and interfaced with the display. All voltage measurements good to go, Got the display up, can see that the teensy was programmed correctly, but after several seconds (no touch but not worried about that at the moment). Display shut down. weird all voltages still good all over the board. (yea notice no heatsink on the 3.3 reg or 5v reg( will get to that). any quick suggestions that i should take a look at? any way to get the display powered up and get some kind of display to check that separately? Vince |
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Re: Display question?
Al and I are close to releasing v.96, but we want to make sure it runs on the V5 board first. Some other commitments are slowing it down more than I thought it would, but we are both putting in 15 hours days to git'er done. Jack, W8TEE
On Thursday, March 7, 2019, 4:47:46 PM EST, James Zdunic <james_zdunic@...> wrote:
Jack,
My 7” display seems to function correctly with the wiring shown in the photo...
However there are some issues I’m seeing (running v95): ?
After going through the screen cal routine it seems there is some inaccuracy. ?Some buttons will activate the adjacent button, etc. ?
Also the touch is intermittent and at times stops responding completely. ?To the extent it is not useable.
I was thinking I’d bring it up to the bbq and have you guys take a look at it.
Regards,
Jim
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Re: Board powered up - Display works but touches not detected
James Zdunic
开云体育Ben,
I first learned about cutting the teensy circuit trace on the card that came with the teensy (upper right in photo)...
Hope this is helpful.
Jim Zdunic ?KM4TXR
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Re: Display question?
James Zdunic
开云体育Jack,
My 7” display seems to function correctly with the wiring shown in the photo...
However there are some issues I’m seeing (running v95): ?
After going through the screen cal routine it seems there is some inaccuracy. ?Some buttons will activate the adjacent button, etc. ?
Also the touch is intermittent and at times stops responding completely. ?To the extent it is not useable.
I was thinking I’d bring it up to the bbq and have you guys take a look at it.
Regards,
Jim
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Re: Display question?
Jim: Is the display wrong on the wiring. From you photo, it looks okay. Jack, W8TEE
On Thursday, March 7, 2019, 3:55:05 PM EST, James Zdunic <james_zdunic@...> wrote:
Here is a photo of my 7” display connections...
Jim Zdunic ? KM4TXR
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Re: Display question?
James Zdunic
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