This is how I test the TPA3116 PBTL board with only the IC in place.
All inductors, caps, resistors, etc. are on the board closest to the board under test.
Spring loaded pins connect between boards...some connecting to SMT pads and some to through-hole connection points.
Both inverting and non-inverting inputs are tested. (with the other input to gnd)
Switches (L-R): power for each board half; AF input for each half; + or - input selection.
Caps are used to strip DC from outputs in case of errors.
Speakers only cost $10 each...keeps cost down.
#17 drill bits serve as guide pins.
Current is monitored with 1R0 in supply line.
30 out of 30 so far at 100% OK.
Wow, that is very clever handywork. I never imagined a home made test jig like this can work...
Dug,
Would be interested in getting the 4 boards (2 pair) if still available, with 3116 already solder on.
Thx
on the list
I'll take 2 connected boards with IC soldered.
BK
One pair with IC's installed & tested...on the list.
Waiting for my boards and kits
Just got the kit parts this week.
I will be putting together kits this weekend.
(I also need to estimate shipping with weight of kits)
To those that have requested kits:
I have requests for 16 kits...watch your PM for e-mail requests for invoicing.
I will also revise the BOM to reflect the parts I could get.
Thank you for your patients.
Doug
afoor, randytsuch, col_s, ChrisMmm
Your boards (and ic's) were mailed out on Friday.
I am almost finished the test bed and then can get out some others that are waiting for testing.
Doug
I received mine. Now I have just have to buy parts and build it.
Dug,
What is the price for 2 kits (I have PCB's and TPA3116D2 already)? I did not even know this was being offered...
I bought parts for 20 kits...16 have been spoken for...$25CDN each.
IC and board not included in kit. (nor input connectors)
Start putting them together this weekend.
Hi Dug,
I'll take 2 connected boards with IC soldered.
Thanks in advance
On the list.
Hi Dug,
I'll take 2 x 2 connected boards with ICs soldered.
Thank you
2 pair with IC's installed
On the list.
Hi Doug,
Is it too late to get two separate boards with two TPA chips? (not soldered)
Thanks
2 boards with IC's supplied
On the list
OK, kits are kitted (first 18 anyway) 2 more to kit but parts shortage...complete midweek)
In order of kits requested:
johnnygrace
tabarddn
birca1987
undefinedza
Alfi
number9
I have enough to cover these requests.
I will be sending pm's with cost and request for e-mail for invoicing on Sunday. (some I already have)
Postage will not be too much more...One kit is 34gms. (all in pairs 66-68 gms)
Brain fried so I am going to sleep soon.
After this I will get back to non-kit orders.
Thank you for your patients.
Doug
In order of kits requested:
johnnygrace
tabarddn
birca1987
undefinedza
Alfi
number9
I have enough to cover these requests.
I will be sending pm's with cost and request for e-mail for invoicing on Sunday. (some I already have)
Postage will not be too much more...One kit is 34gms. (all in pairs 66-68 gms)
Brain fried so I am going to sleep soon.
After this I will get back to non-kit orders.
Thank you for your patients.
Doug
Hi Doug
Wondering if you can make the schematic available to those of us who bought boards?
I know I can look at my PWB and figure it out, but a schematic would make it easier.
BTW, I'm figuring out what I need to order to build my board, will be placing my digikey buy pretty soon.
Randy
Wondering if you can make the schematic available to those of us who bought boards?
I know I can look at my PWB and figure it out, but a schematic would make it easier.
BTW, I'm figuring out what I need to order to build my board, will be placing my digikey buy pretty soon.
Randy
- Status
- This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
- Home
- Group Buys
- GB for TPA3116/8 PBTL bare pcb