PLASMA PBG12201 VU KITS-AS PROMISED!

[Igor]

Hi, here's build and support tread for plasma VU's.

You can find some pictures of previous version PCB here:

http://www.groupdiy.com/index.php?topic=29123

Photos:

http://i251.photobucket.com/albums/gg291/diy33609/P1010031.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010033.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010035.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010037.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010038.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010045.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010048.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010050.jpg
http://i251.photobucket.com/albums/gg291/diy33609/P1010052.jpg

New:

-Lin/log scale pin and external input for applications like
compressor gain reduction metering
-Highlighted segments at -30, -20, -10, -2, 0, 2, 10, 20 dB added
-Highlighted segments added to linear scale as well
-Power supply can be hooked up to any unit using 2x(15...24)V 1A
power transformer.

Schematics, pcb drawings:

http://i251.photobucket.com/albums/gg291/diy33609/Plasma/PBG_PCB.gif
http://i251.photobucket.com/albums/gg291/diy33609/Plasma/PBG_PCB_BTM.gif
http://i251.photobucket.com/albums/gg291/diy33609/Plasma/PBG_SCH.gif
http://i251.photobucket.com/albums/gg291/diy33609/Plasma/PS_SCH.gif
http://i251.photobucket.com/albums/gg291/diy33609/Plasma/PS_pcb.gif
http://i251.photobucket.com/albums/gg291/diy33609/Plasma/sw_assy1.gif
http://i251.photobucket.com/albums/gg291/diy33609/Plasma/sw_assy2.gif


Normally, microcontroller comes pre-programmed for
highlighted segments as shown on pictures.
However, I have two different versions
which can be used for 0dbFS and tube compressor's GR metering.
Please ask here.


For more displays, you just need stabilized 245V power supply.
Each display runs on approx. 20 mA 245V, 30 mA +/-15V.

If some people interested to build crazy 16x or even more meters
in-addition to their consoles....
:shock:
Will post here good stabilized PS schem and help with pcb's.


Ordering:

http://www.groupdiy.com/index.php?topic=29771

BOM FOR PBG PCB:

                               

• CONNECTORS                                   
  1       MOLEX 3 PIN                 EXT_LIN_INP                           
  1       MOLEX 4 PIN                 PS                                   
  1       MOLEX 5 PIN                 J2
  2       CONNECTOR 10 PIN DUAL ROW MALE             
  2       CONNECTOR 10 PIN DUAL ROW FEMALE           
  3       SWITCH PCB DPDT             S1
  
  C-POLY
  4    0.47U 35-100V PITCH 5..10MM   C15, C16, C19, C20
  1    68n 400V  PITCH 15MM          C1
  
  C-CERAMIC
  2   .1U 50V       PITCH 5MM       C5, C6
  6   224  .22U 50V PITCH 5MM       C2, C4, C8, C9, C11, C12
  2   100p    50V PITCH 2.5MM       C13, C17
  
  C-ELECTROLYTHIC
  2   100u 25-50V PITCH 2.5MM DIAM 7MM       C7, C10                                   
  3   10u 25-50V  PITCH 2.5MM DIAM 6MM       C3, C14, C18
  
  RESISTORS
  2   22        0.25W               R20, R19
  2   100       0.125W 1%         R33, R50                               
  2   1k5       0.125W 1%         R36, R53                             
  7   4k7       0.125W              R6, R8, R10, R12, R13, R15, R18       
  6   5k0       0.125W 1%         R25, R26, R27, R42, R43, R44         
  2   10k0      0.125W 1%         R22, R39                             
  2   15k6      0.125W 1%         R31, R48                             
  8   20k       0.125W 1%         R21, R23, R29, R32, R38, R40, R46, R49
  2   22k       0.125W 1%         R34, R51                             
  2   24k       0.25W         R14, R17                             
  2   24k3      0.125W 1%         R35, R52                             
  1   33k       0.5W              R1                                   
  2   36k       0.25W         R3, R4                                                         
  4   100k      0.25W         R5, R7, R9, R11                       
  4   909k      0.125W 1%         R30, R37, R47, R54                             
  2   1m        0.125W 1%         R2, R16                             
  2   10m       0.125W         R28, R45             
  
  MISC
  2   50k       TRIM_25T            R24, R41
  6             MPSA42              T1, T2, T3, T4, T5, T6               
  8             1N4148              D2, D3, D5, D6, D7, D9, D4, D8
  1   68v ZENER 0.5W PITCH 10MM     D1
  1   7805      78LXX               IC2                                   
  1   PBG12201. PBG12201.           PBG                                   
  1   PIC       DIL18               IC1                                   
  1   TL072     TL072P ETC          IC4                                   
  2   TL074     TL074P ETC          1C1, IC3                                   
  
  
  BOM FOR POWER SUPPLY:
  
  CONNECTORS       
  1          MOLEX 3 PIN           AC_IN         
  1          MOLEX 4 PIN           V_OUT
  
  RESISTORS
  1   470r     0.25W         R9
  2   1k       0.25W         R4, R5       
  3   10k      0.25W         R1, R2, R7
  1   33k      0.25W         R3
  1   220k     0.25W         R6
  
  CAPACITORS-ELECTROLYTHIC         
  1   4u7 400v        PITCH 5 DIAM 10MM      C9           
  2   100u 35-50V     PITCH 3.5 DIAM 8MM     .C1, .C2   
  
  CAPACITORS-CERAMIC           
  1   56p  200V     PITCH 5-7.5 MM     C10           
  1   2n2  50-200V  PITCH 5-7.5 MM     C11
  5   224  .22U 50V PITCH 5MM          C8, C1, C3, C4, C6
             
  1   470u     CPOL-EUE5-10.5      C7           
  2   1000u    CPOL-EUE7.5-18      C2, C5       
             
  2   7815     78XXS               IC1, IC3     
  1   7915     79XXS               IC2           
  1   IRF740 (840, 830)            Q1           
  1   NE555N   NE555N              IC4           
  1   byv95c   400V FAST DIODE     D5           
  1   mpsa42   MPSA42-NPN-TO92-CBE T1
  1   1k  TRIM RJ9W 25 TURN        R8
  4            1N4004              D2, D3, D4, D1
  1   100uH_1A INDUCTOR            L1

 

[gyraf]

PBG12201 display - http://www.die-wuestens.de/dindex.htm?/trafo.htm

 

[Igor]

Thanx Yakob!

Jan selling PBG12201 for very affordable price as well.
http://www.die-wuestens.de/eindex.htm

 

[Igor]

Price of kits droped down, but now you have to buy all misc stuff by yourself.
10 plasma display kits are ready to ship.

 

[Gilbert]

Hello

Just finished building this awesome meter. Thanks Igor for such a cool project. I'm having a bit of a problem that I'm hoping someone could shed some light on for me.

The meter works for a few minutes, and then it just shuts off. When this happens the high voltage rail drops to around 65v or so. If the power supply has no load on it the high voltage out will stay at 245v where I have it set.

I've checked for any shorts or misplaced components. Can't see anything out of sorts. I'm very much still a newbie,  any help is most appreciated.

Thanks
Jon

 

[Igor]

Hi Jon, please check if high voltage diode BYV95 is not changed with 1N4004.
Is the PS high voltage with load 245V as well?
What trafo are you using?
What is the voltage on C2 and C5?
Maybe, 7815 before HV converter getting too hot and enters in thermal shutdown?
Check the voltage after 7815 (on C7) when it shuts down.
Heatsink will help.

 

[Gilbert]

Thanks Igor

I added heatsinks and that seemed to fix the problem. I guess it was a thermal issue. I had it on for about 2 hrs without it shuting off.
killer meter  , thanks once again.
Jon

 

[Igor]

YAP. Enjoy

 

[flight]

Hi ,

Is this one can be used as a peak meter ??
Thanks

 

[Igor]

Yes, both peak/average detectors are on-board, you can switch between them
with external switch or install jumpers on board. See schem. as well for details.

 

[flight]

HI igor ,
12201 are really hard to  find ...http://www.die-wuestens.de  is now Sold out for this product .

-Anyone know where to find 12201 because every reseller give me price about 350 and 400 $ !! 

 

[Igor]

I think I can help you with 1 or 2. Lemmie check this.
Please PM.

 

[flight]

Pm !!
Ty igor

 

[yosh]

Yeah, I'm in the same boat. I think the cheapest price I found for the pbg12201 was 293 US$. Anyone found a cheaper price anywhere? I'm looking for one for one of Igor's CRM kits. Thanks!

-Josh

 

[Igor]

I can help with one pbg display, please pm.

 

[yosh]

PM sent.

 

[TheGuitarist]

I'm getting a bit confused. I'm getting some mixed messages... the schamatic says 18v... and 15v... and there is another ac input..

So what do i actually need? Just a 15v hooked up to the PS? or an 18 and 240v mains?

 

[Igor]

Wait. Please specify your question.
Power supply transformer: 2x(15-22V) AC 25VA min.
The voltages on plasma board are  +/-15V (analog supply),
+5V (local stabilizer on plasma PCB for microcontroller, it takes power from 15V analog),
and  +245V for plasma display.

 

[TheGuitarist]

Wait, i was looking at the schematic funny. The psu puts out 245v yes? That was my confusion (being that europe and austraian mains beeing 230/240v.)

So there is no real difference between using a 15v transformer to a 25v one.

 

[Igor]

The PSU puts out +/-15V and +245 V DC.
245V DC voltage used to fire up the plasma.
Power supply trafo is: (your country AC mains voltage) -> (2x(15...22V) AC), 25 VA min.
I used 230-> (2x18V, 0.7A) rated trafos. Israeli people used to think we're the part of Europe,
(ahem.... and here mains voltage is 230V, 50Hz, same as in Europe.
Hope now all is clear...anyway, ask in case of whatever.