Aiwa 990 regulator and resistance burned
Hello dear, I managed to get the diagram thank you very much! There I uploaded a PDF photo can not see the values of the components that are marked diodes regulatory resistors of that stage. I don't want to abuse your kindness but can you help me with this? I can not find or not look in the diagram the values of these components marked in the photo since a thousand thanks!
d107 is 1sr139-200 code diode d114 30 volt zener diode * 1/2 watt r127 1/4 watt 47k resistor
Age of LEA?
THE Q BOXES MENTIONED ARE STILL USED IN MY COUNTRY THE DANCES HOUSEHOLD
Hello dear this week the spare parts that I am missing from the aiwa 990 arrive. I ask you another question my sister. He brought me an aiwa nsx 777 with a lot of noise in the traffic ... he says that with the original speakers he didn't make that noise. But yesterday he was connected to a 15-inch 50-inch generic speaker at an exit and after a few hours that loud frightful noise began !! But the functions of the team is normal .. I tested it with and without speakers and with volume and without volume and the eq is going well. Except that the source's traffic makes a bit of noise ... from now on, thanks for some advice, kind regards!
Friend if it sounds sometimes it is due to the current consumption that the team is required to be a little higher than what this is capable of supplying but since you say that it does so after a while it could be turned to some filter sieve in the amplifying stage or the heat that this emits and the plaxas open this would be discarded giving an electrist varnish bath or I think that it is also not well fixed and the bibrasions so that this effect is produced
Hello dear friend, I hope you are well. I still around with the spare parts of the aiwa 990 .. could you tell me what the diodes located on the board are called 106 and 107? I went to the electronics house and they gave me Zetner diodes in replacement for them. Original diodes because they say that they are not there anymore ... that's why they gave me zetner and with an approximate value of the original value and that I don't know what it is ... Many apologies and thanks for your collaboration!
I already check my friend and I tell you, do you want the correct 106 and 107 location?
replace them with normal 5 amp diodes friend, the zeners do not deal with this type of damage for putting zener you can try this series D5A100
I do not want to abuse your kindness but I tell you I have an aiwa z650 without audio by rca but I discovered that there audio by headphones and the display and all the functions are fine. Solve components and the stk does not indicate anything to me the tester in terminals 1 and 18 and I assumed that the stk was screwed is a 4132 ll. Thanks for your help cordial sdos !!
Today they also brought me an Aiwa NSK 350, it turns out that it took me to fix it because it didn't have Audio and it was fixed, but half the power and volume could be heard ... than when I was walking. Ok, check it out and I see that you have already missed the exits! I place the tester on the RCA audio output and on a channel they give me - 27volt. And on the other channel 5volt. What will be the short stk on a friend channel?
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