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Old 7th April 2011, 03:33 AM   #4621
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hi Erik,
did you make the board on your motors?
since it's just a few connections I was going to vector board it ,
Are those power supplies doing what you wanted,I used some and they just sat and pulsed,so I returned to the lm 7808 it was before and it's fine maybe I'll build a 7805 and connect it,did you tie in the 5 volts as PD had on his?
Cheers!
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Old 7th April 2011, 03:50 AM   #4622
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Default hi,

Quote:
Originally Posted by syklab View Post
Hi All,
I have been reading from this project for sometimes and decided to give it a try but after a month of sourcing for the JVC RC EZ31/32/51 and not able to find any available in HK. Finally found one JVC RD EZ11 (actuall the only JVC boombox available), bought it and hope it will be similar. I will take it apart and post some picture of the boards and the laser in a day or two. I am a newbe in this area would need all your help.

Thanks
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Old 7th April 2011, 03:52 AM   #4623
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Default hi

Quote:
Originally Posted by syklab View Post
Hi All,
I have been reading from this project for sometimes and decided to give it a try but after a month of sourcing for the JVC RC EZ31/32/51 and not able to find any available in HK. Finally found one JVC RD EZ11 (actuall the only JVC boombox available), bought it and hope it will be similar. I will take it apart and post some picture of the boards and the laser in a day or two. I am a newbe in this area would need all your help.

Thanks
good place to start is here,
The CD Transport
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Old 7th April 2011, 06:43 AM   #4624
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Hi,

I do not know exactly what you mean so I aswer what I think you mean...

On my PiTbull I made my own laserboard out of alu and an rvs laser-guidance rod together with a homemade platform with laser-end-switch etc.

On the Mini-Pitbull I bought a ready assembled laser and motor unit with a laser-end-switch and used a 6 wired plug out of the boombox to connect it (see previuos pics) to the electronic-board.

I use the 8V and 5 V connections on the mini-PiTbull as mentioned in this thread.

Since in my opinion this contraption thrives under a good power supply (which audio component does not) I am heavy on the supplied juices
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Old 7th April 2011, 09:56 AM   #4625
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hi Erik,
Sorry I wasn't clear but line #3ready assembled laser was what I was wanting to know ,I think the boards we ordered have them on them,
How about a pic of the laser rod mod? Did you have to align it afterwards?
Thanks,
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Old 7th April 2011, 01:43 PM   #4626
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Quote:
Originally Posted by noSmoking View Post
hi Erik,
Sorry I wasn't clear but line #3ready assembled laser was what I was wanting to know ,I think the boards we ordered have them on them,
How about a pic of the laser rod mod? Did you have to align it afterwards?
Thanks,


Click the image to open in full size.

You can read about this somewhere around post 1544
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Old 7th April 2011, 03:00 PM   #4627
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ok thanks!
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Old 8th April 2011, 03:37 PM   #4628
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Hi guys, good news-have had a look at the LA6541 data sheet and the VREF pin is definitely high impedance as it is the input to an opamp (see page 3 of data sheet).

This means it will benefit hugely from the JohnW VREF circuit described earlier.

http://www.datasheetcatalog.org/data...f_e/LA6541.pdf
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Old 9th April 2011, 04:10 PM   #4629
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Default Bybees

Since I heard the Bybees implemented in a Shiga (straight out of the boombox) and implemented on the Mini-PiTbull it was more or less a safe bet to try them out on my own PiTbull....
This time I use the double-barrelled..
Not disapointed...

BEFORE
Click the image to open in full size.

DOUBLE BARRALLED
Click the image to open in full size.

AFTER
Click the image to open in full size.

In case you do not spot them Top-Right-Corner of the Digital Out Connectionbox...
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Old 11th April 2011, 10:38 AM   #4630
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Quote:
Originally Posted by Dr.H View Post
Hi guys, good news-have had a look at the LA6541 data sheet and the VREF pin is definitely high impedance as it is the input to an opamp (see page 3 of data sheet).

This means it will benefit hugely from the JohnW VREF circuit described earlier.

http://www.datasheetcatalog.org/data...f_e/LA6541.pdf

Hi dr H,
Where are you sorcing parts for the Vref,I have looked and the reg requires programming and they want to sell tape and reels only where for the diode in a few quanties?
Thanks!
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