I replaced the electrolytes, but the receiver still worked inadequately on FM. The problem was in the D10 varicap, electrolyte from the nearest capacitor leaked under it. It must be unsoldered and thoroughly rinsed and soldered under it.
My Sony 7600GR doesn't turn on. The display just flashes '0:00' and sometimes with battery empty icon as well, when plugged in or with the batteries. I checked the continuity of the power switch which seems Ok.
Hi I ambfrom India I have the same radio and duecto lack of use it is not in working order. Can you repair it please ? I shall pay for cost of repairing and shipping charges.
This mod is for bypassing high frequencies. C127 is on the primary side of the DC/DC converter, after a choke that's used for blocking RF that might creep back into the supply. Unfortunately for the poor cap, there is no bypass capacitor for it that would work better at high frequencies (the converter itself works at 1.85 MHz), thus keeping most of the high-frequency voltage ripple away. Instead, C127, which has pretty high losses at that kind of frequency, has to endure all the ripple by itself, thus getting heated up and ultimately drying out prematurely. stephan.win31.de/sony76-2.htm
@@ukrainehamradio Wow that is really thorough! Thank you so much for the explanation and the source too. I have it replaced with another electolytic cap. I will open it up and add a ceramic cap. I have these that look like orange lentil. hope i can make it fit.. Thank you again.
Do you have list of those caps? Then I have no need then to open and examine radio. I had this very same years and years ago. In 90's I think. Buying in close fire second hand from ebay but most likely caps in bad condition...
I got SONY ICF-SW7600 and he is die after 10 days beacuse Sony use 1986 -1993 bad caps, and radio die after some 5-7 years......i sold him and buy SONY ICF-SW7600G ...mutch better and caps are god. You must change all caps. I change all caps but didnt work. You got worst model, after that they made better models.
The most unique background music I've ever watch.
I replaced the electrolytes, but the receiver still worked inadequately on FM. The problem was in the D10 varicap, electrolyte from the nearest capacitor leaked under it. It must be unsoldered and thoroughly rinsed and soldered under it.
My Sony 7600GR doesn't turn on. The display just flashes '0:00' and sometimes with battery empty icon as well, when plugged in or with the batteries. I checked the continuity of the power switch which seems Ok.
Здравствуйте подскажите почему на таком же аппарате звук тихий из динамика.?
which liquid utilize for PCB cleaning?
isopropyl alcohol
Hi I ambfrom India I have the same radio and duecto lack of use it is not in working order. Can you repair it please ? I shall pay for cost of repairing and shipping charges.
May I ask, why add the extra cap in the dc area?
This mod is for bypassing high frequencies. C127 is on the primary side of the DC/DC converter, after a choke that's used for blocking RF that might creep back into the supply. Unfortunately for the poor cap, there is no bypass capacitor for it that would work better at high frequencies (the converter itself works at 1.85 MHz), thus keeping most of the high-frequency voltage ripple away. Instead, C127, which has pretty high losses at that kind of frequency, has to endure all the ripple by itself, thus getting heated up and ultimately drying out prematurely.
stephan.win31.de/sony76-2.htm
@@ukrainehamradio Wow that is really thorough! Thank you so much for the explanation and the source too. I have it replaced with another electolytic cap. I will open it up and add a ceramic cap. I have these that look like orange lentil. hope i can make it fit.. Thank you again.
Do you have list of those caps?
Then I have no need then to open and examine radio. I had this very same years and years ago. In 90's I think. Buying in close fire second hand from ebay but most likely caps in bad condition...
Nice video
You can find it in service manual.
What software you was using on pc for radio alignments
www.osa103.ru/ru/software-ru/ This device is very inconvenient and as soon as I have money I will purchase normal equipment.
@@ukrainehamradio access is denied...the page not opening to link..plz check
@@oasishut3120 This is a link to the developer's site. I use the device OSA-103 mini and its software.
I have non working SONY ICF-SW7600. Is it possible to order repairs from you?
пишіть на us7ign на ukr net
Hi please tell where did you get all tantalum smd capacitors ? what size are they ? Do you have any source link so I can order ? Thanks
Hello! You can order them in any electronic parts shop like Mouser or any local. I use size B
I got SONY ICF-SW7600 and he is die after 10 days beacuse Sony use 1986 -1993 bad caps, and radio die after some 5-7 years......i sold him and buy SONY ICF-SW7600G ...mutch better and caps are god. You must change all caps. I change all caps but didnt work. You got worst model, after that they made better models.
There is nothing wrong with the design. The bad capacitors wasn't Sony's fault