Question about Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV

1 Answer

SONY KDF-50WE655 Cooling Fan

Hi, I'm trying to find the part number for my SONY KDF-50WE655 cooling fan in the back of my set. It's making a whining noise and I need to replace it. Thank you for your help and time, Rob

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.

    Vice President:

    An expert whose answer gotĀ voted for 100 times.


    An expert who has posted more than 50 answers, of which 90% or more were rated as helpful.

  • Expert
  • 140 Answers
Re: SONY KDF-50WE655 Cooling Fan

There are three fans: 1)Cooling fan(on the optical block)part# 1-787-057-11 2)Ballast fan part# 1-787-081-11 3)Upper optics fan part# 1-787-460-11 Also make sure you don't have a noisey iris motor in the optical block (verify by adjusting the iris settings in the menu and see if the noise level changes)

Posted on Sep 20, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

SONY KDF-50WE655 Cooling Fan has become too noisy. It's not the little horizontal fan that is easy to see but something else near it that keeps whining after the little fan stops.

You have a total of 4 fans in this unit.
Fan# 1 - Optics unit ( left side )
Fan# 2 - Large fan facing rear of set, behind metal shield
Fan# 3 - Optics unit ( right side )
Fan# 4 - Mounted directly above the chassi assy

Jun 19, 2012 | Sony Grand WEGA KDF-50WE655 50" Rear...

2 Answers

Hi I have a Sony Grand WEGA KDF-60XS955 TV

Ur right the cooling fan is defective,check it,clean it might work normal again.Not, than the cooling fan must be change.

May 04, 2010 | Sony Grand WEGA KDF-60XS955 60" Rear...

2 Answers

Tv turns off for a minute and comes back on

if tv turns On itself after shuts down then its symptom of weak lamp as current lamp is reaching to end of its working life, tv requires lamp replacement.
Lamp replacement procedure would be written in user manual and its easy. Please buy Sony original lamp for good picture.
Let me know if you have additional question.

Apr 17, 2010 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer


Dust has accumulated inside the optical assy and cooling fans espesialy on the lamp cooling fan.

Mar 22, 2010 | Sony Grand WEGA KDF-50WE655 50" Rear...

2 Answers

KDF60XBR950 doesnt turn is on just flashes green

There is no less than two Cooling Fans on the right side. Either one of them could cause the problem. The one that turns slow or stops turning quickly is the one that is probably causing the problem.
I hope this helps,
Sky Assoc

Sep 11, 2009 | Sony Grand WEGA KDF-60XBR950 60" Rear...

1 Answer

I have no picture on my sony KDF-50WE655

check the fan again with a flash light. I had this same problem and changed out the large fan behind the more problem. my brother has the same tv and he has had to replace the fan at least three times.

Jun 08, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

2 Answers


The lamp is going bad. If it was the thermal fuse it would not be intermittent. It is very common for some Sony sets like yours to do exactly what you describe when the lamp is going bad.

May 17, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Is the t603 and r672 part of the tv or the actual circuit breaker

Three blinks - B over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

DOES THIS ABOVE issue have anything to do with Cooling FAN?
I cannot hear the cooling fan come on when first turned on like
before THANKS

May 05, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

Not finding what you are looking for?
Sony Grand WEGA KDF-50WE655 50" Rear Projection HDTV Logo

835 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Projection Televisions Experts

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1128 Answers


Level 2 Expert

103 Answers

Jason Harris
Jason Harris

Level 2 Expert

256 Answers

Are you a Sony Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides