Hey,thanks for help but i made a mistake.I've missunderstood.The items with the problem are the one in the next pic and they have the series erased.
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I will be forever gratefull.
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I will be forever gratefull.
On the right side of the driver board, the one at the top is an LM211. You will find pins 1 and 4 directly connected.
The one below it is likely a TL072 but could possibly be a TL071. If pin8 is directly connected to pin 8 of the LM211, it's a TL072. If pin 7 is directly connected to pin 8 of the LM211, it's a TL071.
The one below it is likely a TL072 but could possibly be a TL071. If pin8 is directly connected to pin 8 of the LM211, it's a TL072. If pin 7 is directly connected to pin 8 of the LM211, it's a TL071.
Can you please make some marks on the picture just to be sure? Cause i have to explain to another person and i don't wanna make any mistake.Thanks a lot.
I didn't understood corectly and thats why i've asked you to show me on the pic'. It would help a lot,please.
The person repairing the amp is not an "internet guy". i have talked with him at the phone and i didn't know how to explain exactly.If i had a pic i would go tomorrow and show it. He lives pretty far from me 🙁
I don't know how I could be more clear. Precisely what is it that you don't understand about what I wrote. The answer is NOT definitive. You have to check the pins to confirm.
Print out the text and bring it to him.
If he's doing repair work and doesn't use the internet, he's making his life MUCH more difficult. Without the internet, he can't even look up datasheets.
Print out the text and bring it to him.
If he's doing repair work and doesn't use the internet, he's making his life MUCH more difficult. Without the internet, he can't even look up datasheets.
You say that nr.1 in the pic is LM211 and nr. 2 TL072 or TL071? Or nr.1 and nr.2 are TL071/72 and the six one at the top of the board are LM211?
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#1 is an LM211.
#2 is most likely a TL072 but on at least one driver board, a TL071 was used there. That's why I told you how to confirm which #2 was definitively. If the resolution were better, I could tell you for sure.
#2 is most likely a TL072 but on at least one driver board, a TL071 was used there. That's why I told you how to confirm which #2 was definitively. If the resolution were better, I could tell you for sure.
I've found in my pc a clearer picture.Hope it will help.
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Looks like imageshack turned the picture 180 degrees. So in this last pic the one from above is TL072 and the other one is LM211. Thanks a lot!
Those six at the top and bottom of card are sot-89 transistors.
AG = 2SA1797 PNP
DK = 2SC4672 NPN
If you must..you can replace those with (for example) AG -> PBSS5480X .. DK -> PBSS4480X
AG = 2SA1797 PNP
DK = 2SC4672 NPN
If you must..you can replace those with (for example) AG -> PBSS5480X .. DK -> PBSS4480X
Unfortunately even though the pieces above has been changed the amp is overheating and it blow the tranzistors.The one who tried to repair the amp said that won't be able to repair it without the amplifier scheme.
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