Question about Yamaha RX-V661 Receiver
Yamaha rx v661 front display is very dim, it suddenly lost luminosity. how to fix it.
Yamaha RX-V661 LCD / Front panel. I keep the 220uf the same to be Good luck everyone, JimmySCW
Symptom: when you first turn it
on, you can see a VERY little light but after 5 sec, you cannot see it anymore
or for most of us, we started using a flash light. Here is the summary of the solution and I know that it works
because I fixed it today 3/16/2011, 30 minutes ago. As many pointed out that there is a
"light" 12v - 14v in the back but there is NONE. How do I know? I listened and searched and
there are NONE. The whole LCD in the front is air seal like a light bulb so it
is a light bulb already. Also, you might
see a little burn/gray smoke on the left hand side, don't worry about it
because if the light comes on, it stills work but not enough power. If the LCD
is broken, please don't try by the part and replace it because by the time you
read this, the parts and labor cost as much as buying a new one (on eBay and
not Best Buy).
Problem: in the middle of the unit near the back near the "surround
sound back", there are 3 capacitor rated at (2 units) 35v 220uf 85'C and
(1 unit) 50v 220uf 85'C. What Yamaha did wrong, base on my guess is that they
put the 85'C too close to the heat sink.
The heat causes the capacitor to slowly blown that is why you still get
your power to the LCD but not enough.
Solution: remove the top, unscrew EVERYTHING in the back and there are about 20 ~ good luck. For
those that don't have good memory, please take a picture. There are many plugs inside
that you need to unplug before you can remove 1st layer (audio/ video input)
2nd player (HDMI and Optical input), the last layer you will see 3 capacitors that
are kind of "blown" up (google "bad capacitors" pictures or
video). Remove them then replace them, which you can Google this on tube and
they should teach you how. It was very easy for me but then again, please don't
try to do it if you cannot even change your car oil or build a computer because
I believe that is the difficulty level.
solder iron: $9-$20 get it on eBay or radio
(2 units) 35v 220uf 105'C and (1
unit) 50v 220uf 105'C or what I got was (3 units) 50v 220uf 105'C
safe but increase the voltage and heat to increase the life of the capacitors.
I keep the 220uf the same to be
Good luck everyone,
Posted on Mar 17, 2011
You can change the LCD brightness in the Setup / Display menu.
Posted on Mar 02, 2010
I have also the same problem, brightness was full when display was very dim. Now display is black but all other works correct. Probaby I have to buy new display.
Posted on Apr 21, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
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click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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