No, not finished yet
Strange, mine is not like yours
An externally hosted image should be here but it was not working when we last tested it.
Regards zeoN_Rider
No, not finished yet
Strange, mine is not like yours
An externally hosted image should be here but it was not working when we last tested it.
Regards zeoN_Rider
I think your pcb is the first edition.
Thank you for the pic.
you're right , but that was obviously mistake in post #2 http://www.diyaudio.com/forums/anal...n-man-optical-volume-control.html#post1675967
whatever , pcb is clearly made for T0220 package , and there is just one - normal and straightforward pinout for T0220 LM317
and , logically , table in Cookbook is having exact T0220 type reg .
as I said - I (we) would never use 100mA capable reg for 70mA CCS duty
so - just untwist those legs 😉 ......... or , even better - put new one in place
whatever , pcb is clearly made for T0220 package , and there is just one - normal and straightforward pinout for T0220 LM317
and , logically , table in Cookbook is having exact T0220 type reg .
as I said - I (we) would never use 100mA capable reg for 70mA CCS duty
so - just untwist those legs 😉 ......... or , even better - put new one in place
I put the LM ok and get the same measurements.
I must revised other parts. Perhaps the resistors. Because the curret go to JMP02.
Thank you very much to alls
Best regards
I must revised other parts. Perhaps the resistors. Because the curret go to JMP02.
Thank you very much to alls
Best regards
Perhaps your neigbors built a new pcbs with smd and two flat for buffer and LS and my pcb will be old too.
The sound must be fantastic in any case.
Best regards
Hello friends:
I stell with the problem. I revised all resistor and gain potentiometer and all looks well, but now my multimeter don´t read mA through the jumper 01 and across the jumper 01 is dangerous high. Any sugestion for the next work?
Perhaps change Q1 and/or Q4?
I stell with the problem. I revised all resistor and gain potentiometer and all looks well, but now my multimeter don´t read mA through the jumper 01 and across the jumper 01 is dangerous high. Any sugestion for the next work?
Perhaps change Q1 and/or Q4?
I wrote - check all surrounding parts ......
whatever - re-read page 4 and page 5 of Cook Book ;
check your parts step by step , according to text
whatever - re-read page 4 and page 5 of Cook Book ;
check your parts step by step , according to text
Goodnight Spavlesky.
Sorry, I wont tell across jumper 02 are more current, 40 mA and the jumper 01 nothing in any position of potentiometers.
Sorry, I wont tell across jumper 02 are more current, 40 mA and the jumper 01 nothing in any position of potentiometers.
That's not good. Power it off, and do as Zen said - re-read cookbook .
http://dl.dropbox.com/u/20665608/PSM LS Cook Book.pdf
http://dl.dropbox.com/u/20665608/PSM LS Cook Book.pdf
Yes I have around 17v. The led shine well. In Q3 2,3V . Across VR1 don´t remember now. I´ll see tomorrow and read again the cook book.
Best regards