Goodmorning everybody,
I'm looking for a schematic for an adp-30hf. This is a smps coming out of an Apple Time Machine. Replaced all capacitors, but still is dead.
Thanks and greeting from Amsterdam,
Gerrit
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Re: Samsung UE55h6640 purple and black color artifacts
Thanks for the answer,
No that
's a bit purple, but now there are more spots on the screen, black in the upper right corner.
After a while they vanish a little bit, but I have no idea as where to look.
Trying to get/buy a diner tv but so far no luck.
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Samsung UE55h6640 purple and black color artifacts
Hi everybody,
I was wondering if anyone could help me with this set,
There is a black and purple spot on the tv, as it warms up it gets worse.
Any idea??...
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Dag Semerchet,
Dank voor je aanbod. Toevallig woon ik ook in Amsterdam. Wat kan je mij bieden? Ik kreeg nog de goede tip om PC7703/PC123Y22FZ te vervangen, dat had ik nog niet gedaan. Ja, ik heb de orginele transistroren bewaard. je kan me mailen op [email]altijdvoorwaarts@gmail.com[/email]Dag Semerchet,<br /> Dank voor je a...il.com[/email]
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Re: Manson hcs 3202
Hi, I don'y know if it was C38 or the transistors. However I did know that the fault had to be there somewhere, so I thought I am gonna replace the 4 transistors and C38 and see where that gets me. Btw in the beginning I already replaced the Tl494, but with no effect.
I did measured C38 but it looked ok, and now whenever I find smd parts I am just gonna replace them. They cost nothing.
Greetings from a snowy Amsterdam.
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Re: Manson hcs 3202
Hello Longbow, What do you know; I got it up and running!!!!!
Replaced C38 and Q3,4,5, and 6. While replacing the transistors I -just to be sure- looked for a datasheet and it turned out that instead of the original types of transistors there were something like a 2sb805 of 8055 something like that (not readable). The transistors I replaced also have a different pin configuration. Well anyway I no have a working power supply. I real, really appreciated your afford and help. Have a nice weekend....
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Re: Manson hcs 3202
[url]https://www.youtube.com/watch?v=pffOJdCQ7kw[/url]
explanation of mine power supply (sort of)Re: Manson hcs 3202<br /> <br /> [...pply (sort of)Re: Manson hcs 3202
[url]https://www.youtube.com/watch?v=pffOJdCQ7kw[/url]
explanation of mine power supply (sort of)
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Re: Manson hcs 3202
Bought 4 transistors and a soon as I have them, I let you know the results.
Sofar you were very helpful for me.
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Re: Manson hcs 3202
Hi, Don't change professions, what else you wanna do? Growing bonsai? In any case the blue screen belongs to emitter Q3/Q4. I'm gonna exchange those transistors anyway, cause of the weird square wave, just to be sure.
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Re: Manson hcs 3202
Allright Longbow,
Pin 1 0 16 0
2 2,5 15 2,5
3 0,07 14 5.04
4 0,08 13 5,04
5 1,5 12 12,3
6 3,6 11 6,3
7 0 10 0
8 7,3 9 0
And enclosed a pic of U 5 pin 8 and 11....Last edited by semerchet; 02-05-2017, 03:58 AM.
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Re: Manson hcs 3202
Ok, Longbow, picture of the primary site of T2 dual trace.
Is this helpful...
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Re: Manson hcs 3202
Oh U4 1 and 7 and U3 pin 16 are all 0 volt I'll check the inputs on T2 this weekend
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Re: Manson hcs 3202
Yeah I have seen that video,
thanks anyway.
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Re: Manson hcs 3202
Just one last question, why should I trace on T2, the pict on the waveform on C38 are those waveforms, and they are not the same waveforms.
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Re: Manson hcs 3202
Ok, I'll do that tomorrow. The frontpanel says 0 volt after doing " booting ".
On the rear there is a knob so you can choose different kind of voltages -say 5.0 volt or 13.8
When I use that knob, the display say 13.8 but there is no output. The micro is plugged in cause otherwise the whole thing does nt work
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