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Sagem 50 G4: Came to fix Humming

skes

Standard Member
Someone came to fix my humming today on my Sagem 50 G4, he said it wasn't that bad, anyway he pulled it to bits and said feel this, I could feel it vibrating, then he stuck a pad under the front and said feel now, it made a big difference.
I'd say it cut it down by 50% or more, the fan is louder than the humming now.
 

dduck

Standard Member
I have the man from sagem coming out monday to do the same, are you happier with the set now or is the humming still annoying ?
 
L

laupd

Guest
How did you get 'the man' to come to put the pads in ? I have one that is humming, its not too bad, worse when it comes on, but its always noticable.
 

blasthand

Active Member
Skes,

What sort of pad (material used), and what size? And where did he place it exactly?

Cheers,
Mark.
 

SgtHartman

Active Member
You need to phone Sagem support, wait three weeks and thats it. Apart from the bloke who came to fix mine told me my TV is knackered and I need a new one. Great.
 

thfccambs

Banned
skes said:
Someone came to fix my humming today on my Sagem 50 G4, he said it wasn't that bad, anyway he pulled it to bits and said feel this, I could feel it vibrating, then he stuck a pad under the front and said feel now, it made a big difference.
I'd say it cut it down by 50% or more, the fan is louder than the humming now.


How long you had it m8,i was told the problem had been sorted now,im expeceting delivery in the morning.:rolleyes:
 

fizzgog

Well-known Member
skes said:
Someone came to fix my humming today on my Sagem 50 G4, he said it wasn't that bad, anyway he pulled it to bits and said feel this, I could feel it vibrating, then he stuck a pad under the front and said feel now, it made a big difference.
I'd say it cut it down by 50% or more, the fan is louder than the humming now.
hey skes. i had a guy round to fix my 45 g4 yesterday aswell. he also got me to feel the vibrations and said that the feet should reduce the hum by 1/2.
it sounds like the same guy to me. he came around at 2.30pm on wirral.
..pete
 

dduck

Standard Member
hunts1uk said:
How long you had it m8,i was told the problem had been sorted now,im expeceting delivery in the morning.:rolleyes:

Well thats what i had been told too (had mine less than 2 weeks) and was very dissapointed to still get a humming set. The explanation for this was that it must have slipped through the quality checks at the factory. Hopefully the bloke coming on monday will sort the problem as i don't really want to return the set as i think the picture quality is fantastic on HD and Freeview.
 

skes

Standard Member
Hi All

He put on one of them little stick on feet you can buy for various things, it is about half inch square, and he placed it front dead center.
I'd say it halfed the (humming) noise, but there's still noise but mostly from what sounds like the fan, I could always hear two noises the hum and the fan (or is it the colour wheel)
But he did say mine wasn't too bad, I actually got used to it, like the rainbow effect i hardly ever see it now.
I bought mine 4th of Jan
Bye the way from me ringing this number 0844 441 1299 and them taking my details etc it took the man about a month to get here
 

Kidwhizz

Banned
Just a thought but has anyone listened to other televisions? I mean all TVs will hum a certain amount - Samsung, LG DLPs and the Sony 3LCD are all victims of this from threads/reviews that I have read - I have a 32PF9986 Philips LCD TV and that has a noticeable hum when there is no audio coming from the TV! I also have the HD-D45 (old model) and that has a noise (fan/colour wheel) associated with it when there is no audio.
 

thfccambs

Banned
dduck said:
Does it humm ?? what do you think so fasr ? Just curious.... :rolleyes:


I could hear a hum when i first got it friday but not so much now.David @ avwow is going to call me back friday to see if i want it replaced.
Sagems awesome though.:smashin:
 

dduck

Standard Member
hunts1uk said:
I could hear a hum when i first got it friday but not so much now.David @ avwow is going to call me back friday to see if i want it replaced.
Sagems awesome though.:smashin:

Mines easily audible so yours must be alot quieter, hopefully mine will be sorted monday.
I watched "Life in Death Valley" 1080 High Def on the Sagem last night and it was fantastic, amazing picture quality for the price. :clap:
 

wydad0

Standard Member
DDUCK and others please post feedback on whether the humming is fixed to acceptable level for you.

I have listed my experience below.

Firstly I ordered from AVWOW and regardless ofthe SAGEM issues I must highlight how good their customer servie is - I most definitely recommend them.

1) How to tell if you have the new model
Examine the underneath of the TV. If the front half is plastic ridges with a 1" metal bar running the length of the machine at the rear then it is a new 'improved' unit

2) What was the fix ?
Apparently the older units had a larger metal base at the front of the tv which increased the humming issue.

3) What would I find acceptable ?
The noise of the unit with just the fan noise is perfectly ok

3) Identify the noise
a. Switch on the unit and allow to settle for a few minutes because there is noise at startup which is normal. With the unit switched on and the volume muted listen to the unit then use the standby switch on the right side of the unit. Switch to standby so no tv signals and then within 5 seconds press standby again to resume with tv signal.

Switching to standby in this way is how the Sagem engineer checks the difference with fan noise only and with tv signal electronics on. It also establishes a baseline for the humming by comparing to the fan noise only.

b) Repeat this procedure for different signal feeds :
- DTV
- Analogue TV
- XBOX 360 component
- HDMI (ig you have it)

c) My experience is that the unit with any signal other than HDMI makes significantly more noise than just the fan. I have not tested HDMI but the engineer explained that this would bypass the analogue issue.
The engineer explained that the source of the noise if the 'Wobulator' chip which oscillates to modify the analogue signal. The reason for the pitch change is that different signals have different frequencies:
- DTV (50Hz low pitched loud humming)
- Analogue TV (50 Hz low pitched humming)
- XBOX 360 component (60 Hz higher pitched less noticable but still loud humming)
- HDMI (ig you have it) (not tested)


The engineer explained that the wobulator is an integral part of the optical unit and its manufacture is outsourced so there is no cure to the problem without redesigning the whole optical unit. Sagem have been making attempts to reduce the symptom by reducing the whole tv unit resonance which amplifies the wobulator vibration.

I have received 2 units both of which hum loudly and the engineer expressed disappointment that the 'fix' has not worked.


Finally
------
I hope the above helps you identify the extent of the humming issue because it is subjective. Unfortunately I have to reject the Sagem as I do not believe that there is s fix. It is with regret though becuase the unit is good looking with fantastic high def pictures.

Please do post back your own results as if Sagem do solve this then I would not hesitate in buying this unit again.

Good luck
 

dduck

Standard Member
Excellent post , just in time for me to check this all before the engineer arrives. I will give an update after he's been this morning.
As for HDMI i have a HDPC connected via hdmi and i have noticed a definite reduction in the humming when switching to this.
Many Thanks :smashin:
 

fnloud

Active Member
Nearly bought one yesterday but they only had it in silver... yuck ;)

Glad to hear AVWOW sound good, will order from them.

Many thanks for the humming info, guess I still have to try the telly it is the best looking unit around. It does seem the hum isn't as noticable on certain stands. Maybe running a thin bit of material (felt?) under the telly would also help the problem.

Cheers wydad0
 

thfccambs

Banned
hunts1uk said:
I could hear a hum when i first got it friday but not so much now.David @ avwow is going to call me back friday to see if i want it replaced.
Sagems awesome though.:smashin:


Well out of the blue i've just had the Sagem engineer call me up as david (avwow) had informed him i might have a problem.He's gone over a few things with me and he's coming out to look at the sagem.
Can't believe how good avwow have been,i was quite happy to wait a week or 2 and see how i got on with it.:thumbsup:
 

dduck

Standard Member
My 50" Sagem is getting returned for a refund (2nd one) due to excess humming and freeview card faults.
When the engineer came last time to apply the hum fix he informed me Sagem were stopping trying to do the fixes as they rarely worked and wasn't cost effecient.
I have tried 2 different types of rubber mat in an attempt to reduce it but none worked well enough.
This tv has an oustanding picture for the cost and i wish i was one of the lucky ones who got a hum free set :mad:
 

fastshow

Active Member
Just curious,what floor surface do people who report loud humming have. I would have thought that the sound would resonate more on a laminate or wood floor than carpet. I'm probably way off the mark here but like I said, I'm just curious.
 

Phil57

Well-known Member
Glass stand, laminate floor.
Had the `fix`to a 45" (which worked for one day) TV was replaced with a 50"
which does not suffer with the problem.
Purchased from AV Wow, fantasic service.
:clap: :thumbsup: :clap:
 

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