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Discussion Starter · #1 ·
Would everyone that has as HD100 with a loud fan call and complain? My kicks out 60db of noise. I called today and they have NO reports of complaints about this.


Is everyone just complaining here? We'll never get any results if the can't hear us complaining!


Call sony 800-686-7669, then option 1, option 4, option 3 and wait, wait wait.


Then tell them about the problem(s) you have. Ask them to ask a specialist if they know about a problem.
 

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"I can't hear you." With that kind of attitude, what makes you think they care about fan noise. They expect you to enclose it in a cabinet or build a hush box for it!!! (I'm sure glad I returned mine. I don't miss the loud whoosing noise at all. I thought Superman was flying through my room!)


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Steve Bruzonsky
 

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Since the HD-100 is on my list, I wonder how difficult it would be to open the case and replace the fan? If the fan size is reasonably standard, you could buy a high-quality ball bearing fan and just replace it?


Also, in case the fan's vibration is transmitted to your cabinet, have any of you tried putting, for example, a soft rubber computer mouse pad underneath the unit to dampen the vibration?


Just curious about possible solutions apart from returning the unit.
 

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This is an interesting approach Rich has. I might just look into replacing the fan this weekend. My wife LOVES this new receiver over the old ugly (in her view) and hard to use DTC-100. The only thing she can't stand is its loud fan. I'll definitely look into the fan solution this weekend. Thanks. I'll report what I find if I have a chance to do this.


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CC
 

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Discussion Starter · #6 ·
I got to admit, that before I got the unit I was already questioning opening the box and looking at the fan.


After hooking it up, I was blown away how it makes a sound like a refrigerator. I called up the good guys in sunnyvale and asked if they had heard of other complaints about the fan noise. Sure enough the first one that left the store came back because of the fan.


My box is serial numbered in the 400's, maybe the had an early production problem, I don't know. I've got a replacement unit ordered with this one going back as defective. Maybe sony will get the hint that this isn't acceptable.
 

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i have my screwdriver all set. someone tell me what i need to get.

shame is that i have my "stack" in a 17 1/2" wide cabinet of a huge entertainment center and it is a pain to move switch compents. maybe i should have thought to put a pull out thing in there anyway where can i get a "quite fan"

if i plug it into reciever switched then its slow to start up i think and would be hard for unattended taping.

 

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What do you think it would take to get a company like Sony to get a tech to monitor and relply to posts in a forum like this (on an official level)?


We all know that a forum can be a lot more help than calling a non-tech who reads scripts from a book. AND it has the added benefit of reaching more than one person at once.


Dave
 

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Discussion Starter · #10 ·
I'd also like to be able to report bugs, last night I tried a channel scan in my directv setup and when the scan was done all the items in the list had the wrong icons. I don't remember exactly what it was showing, but it seemed all the boxes in a column had the same icon.


Well, if people call and complain sony will listen. You should of seen how much I had to go through with my STR-DA50ES before they understood the problem. I had to drive to sony and show tech a clip of a movie on two different receivers with two different dvd players before they understood the problem. But the guy I delt with at sony was very helpful, and the problem got fixed.
 

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Changing the fan is not an easy option. Its a 5 volt three wire fan. The third wire is to monitor the speed. The connector is not the same as the one you would normally find on a computer.


While you are in there make sure the heat sink on the OTA HD tuner actually touches the chip.


Good luck


John
 

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Another problem with replacing the fan is its size. It sounds like a dinky unit about the same size as that in the Dish 6000. If that's true, even with a more efficient blade configuration (if even available) you're still dealing with the physics of moving a given volume of air by using a relatively high rotational speed - ergo the objectionable woosh. The receiver everyone loves to hate (RCA's DTC100) uses a relatively large fan (and that's the reason for the bulbous hump in its top cover) that can maintain the desired airflow at a more leisurely speed. Careful with the mouse pad idea. While it would undoubtedly make a difference in the noise level, it's heat insulating and air restriction properties could come back to bite you on the butt. It mystifies me why most receivers are designed with cooling as an afterthought exercise for the college engineering major interns. It seems like it wouldn't take a rocket scientist to figure out designing the case to have a removable top cover, but fixed side panels. The hot running chip(s) could then have been heat-sinked directly to the case side(s) a la the way audio amplifiers are built. Even more efficient heat transfer would be available in that same vein by using extruded aluminum fined heat sinks as the case sides instead of sheet metal if necessary. And, it would've been dead silent.
 

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Well I know that the Dtc-100 has a simple computer fan so I don't think it will be that hard.


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What I suggested was to find ways to reduce the noise, so feel free to adapt any useful ideas.


How much of the noise comes from the fan itself and how much from the vibration? Forget about the mouse pad if it creates a new problem - what about using felt/soft rubber stick-on stands on the bottom of the case? You could even raise the case's height for better air flow.


If the noise comes from the fan itself, the ONLY solution is to replace it or return your box (or get it fixed by Sony).


If the noise comes from the case's frame, then you could take the fan out and put rubber gaskets around the screwholes and screw it back in. The gaskets will absorb vibrations. You could even try a dab of silicone below the screw heads.


Here's a good test - take the fan out and run it by itself. Is it still noisy? If it is, the fan may be bad. If not, try rubber gaskets or do not tighten the screws all the way, etc. You may need to be creative. For example, a fan can be mounted on the inside but you can also move it to the outside of the case to pull air out - it may help silence the fan if the noise is created by the area in which the fan is installed.


In the past, instead of screwing a fan to the case, I have used cable ties to attach the fan's frame to the case. It works and those ties are very strong. No vibration was transmitted and the fan physically moves very little.


Just some ideas. Use at your own risk, so please be careful!
 

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Wow am I glad I didn't buy an HD100. I got sick of waiting for it to come out and instead got the DTC-100. Just my two cents.
 

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Discussion Starter · #16 ·
AtlPaul,


The HD100 is my personal favorite, and I've got a dtc-100 had a dst-3000 and this box is by far my favorite. I love it, well except for the fan noise.


Someone in another thread said that the later numbered units seem to have quieter fans. I've got another on order, with this one going back defective. I hope I get lucky next time, if not... I don't know what I'll do then.
 

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Why do Sony and RCA have internal noisy fans and Toshiba,Mits, and panasonic do not? I know my DST-3000 runs very warm but, don't you think they would have put a fan in the enclosure if they thought it would help?


I also believe that the cheap fan they install in the Sony's box will only get louder over time. Listen to how loud your computer's chip cooling fan is now, for example. It's also a shame that Sony has the worst customer service dept. in the world too. I have never had good luck with Sony products over the years(many years)and stay far away from anything they make. I may be in the minority here but that's my personal experience.
 

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Anyone come up with a fan solution yet or a source for a replacement fan? I don't think serial number make a difference as everyone who has actually measured the DB level of their unit has found at least 50db, low and high serial numbers.


Roger
 

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As an owner of a SD100 I called Sony. 800-282-2848 Dial 0. This will take you to a tech. He said it will always be a problem. But he would register my concern.
 
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