No circuit board. The Model Power 4-6-2 Pacific is all hardwired with the correct color-coded wires coming from the locomotive (orange and grey, red and black). The decoder was also hard-wired with the correct color-coded wires from the decoder. Everything works fine on the decoder except for the high-pitched whine. I can't hear it once the locomotive starts chugging away, but when it stops, I hear it.
Any other ideas...?
You still have not mentioned if the decoder is wired through a circuit board.
I had an N scale Bachmann 4-8-2 I installed a sound decoder through the circuit board in the tender and it had a whine. Could never figure out why even muted it whined. So I eliminated the circuit board and hard wired the decoder, and the whine went away. You just have to figure out what wires from the tender go to motor, track and light on loco. Mine were all black. So I used an ohm meter to figure out what wires went were. Sometimes the OEM circuit boards have issues.
Truck.
I removed the capacitor to see if that was causing the problem. Did the same with the motor wires to see if the motor connectors or the motor was causing the hum. The high-pitched squeal persisted when those things were removed. The squeal only comes on when the speaker is installed.
The Digitrax speaker I got was the 13mm 8-Ohm speaker. The Soundtraxx decoder requires an 8-Ohm speaker.
http://www.modeltrainstuff.com/Digitrax-SP13138-Speaker-13mm-Round-8-Ohms-p/dig-sp13138.htm
Soundtraxx features:
I might have to call Soundtraxx and ask them that question. All the wires were hooked up correctly.
Phone or send a email to SoundTraxx and see what they think the problem might be if you still hear the sound even when it is supposedly muted. Something is not wired right or the decoder is defective. You may have a defective speaker. Do you have another one that you could substitute and see if the whine goes away? Are you absolutely sure the Digitrax speaker is 8 Ohms? They used a different speaker for some of their sound decoders -- something like 50 or 100 Ohm.
You should not have removed the capacitor, but at this point in time I don't think that is causing the whining noise.
It's a Model Power 4-6-2 Pacific with a modified Kato tender.
It's a constant high-pitched whining sound, and it's NOT the headlight or dynamo. I can turn the headlight on and off even though nothing is connected to the light wires. I hear the dynamo spooling up whenever I turn on the headlight. However, this sound coming out of the speaker STILL persists when ALL sounds have been muted.
Any other guesses?
Then again Cacole and Randy could be right, even though the head light is not connected if the light function is on you will still here the dynometer whinning.
If you want to rule out the dynometer find the sound volume CV for it and give it a value of zero and see if the whine goes away.
If you have the headlight function turned on, it may be the dynamo sound you're hearing. Try turning the headlight function off and see if the noise slowly stops.
The dynamo was a steam-powered electrical generator on steam engines that powered the headlight, and they made a high-pitched whining noise when running.
What brand 2-10-2 is it ? Does it have a curcuit board ? If you wired the decoder through the cucuit board your problem could be there.
The headlight was not on. Also, the headlight is not connected. I only made eight connections: two for the track, two for the motor, two for the capacitor, and two for the speaker.
It's very annoying. Anyone know what it could be?
Turn the headlight off. What you think is a hum might be the sound of the turbogenerator.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
I took out the capacitor, and the hum still persists. I also tried a different 8-Ohm speaker, and the buzzing humming noise still comes out of the speaker. It does this when the steam locomotive is stilling on the track and when it's moving.
Once again, it's not the motor, as the sound disappears once the speaker is disconnected.
Is this a sound output problem with the decoder?
The speaker hum still persists when the speaker is connected and the sound is supposedly muted.
It's a Digitrax 8-Ohm speaker, and according to Soundtraxx, it doesn't matter which of the purple wires go to the + or - on the Digitrax speaker.
OK,. I take that back. The hum is only when the speaker is installed.
What if there is a slight hum to the decoder, even without the speaker installed? Sort of like a high-pitched squeal. I connected orange to orange, red to red, grey to grey, and black to black.
No, the decoder is not making the humming noise if there is no speaker attached; it's probably the motor that is making the high pitched squeal you hear.
ok, It works fine now. from my programming track the decoder never took the 4 digit address. It was still operating on 0003. I realized this by trying 0003 instead of the 4 digit number that I had thought I programmed into the locomotive. When I entered 0003, it came to life.
I then put it on the main line and was able to program it to the 4 digit number. Everything works fine now.....
Thanks for all of your help althought I still don't really understand why it wouldn't program correctly on the programming track in the first place.....
Ok, after reading the responces so far written here, I downloaded the Tsunami ops manual and am able to confirm that the red light that is glowing on the decoder when I try to operate the locomotive is indeed the Pilot light. According to the manual, this light indicates that the decoder is getting power. The fault light is not flickering at all.
I am going to try to reset the decoder as the manual suggests and see what does.....
rrinker wrote:The red light indicates a short or overload. I suspectyou have miswired the motor connections or the motor is not truly isolated. Verify your wiring. The meaning of the red light is in the Tsunami manual. --Randy
There are two red lights on the Tsunami; one is a pilot light and the other is a fault light; the one near the center of the assembly is the pilot light and "on" indicates the decoder is receiving power; if this light does NOT come on, it may indicate an improperly wired decoder. for the Fault light see the manual excerpt:
Fault Light
During normal operation, the fault light will turn on and off with the headlight, and is useful for establishing basic control of the decoder. Additionally, Tsunami monitors a number of its input signals and if a fault is found, reports an error code by flashing the fault light as well as the headlight and backup light (if connected). The number of times the light flashes corresponds to the number of the error code.
I would suggest resetting the decoder in OPS mode on the main line; this will provide more programming signal current to the locomotive for proper reset.
Carl in Florida - - - - - - - - - - We need an HO Amtrak SDP40F and GE U36B oh wait- We GOT THEM!
If it is truly connected properly, then I would guess you need to set CV 29 to a value other than what it currently is. In the case of the QSI's, enter Ops mode, and set it to a value of 38 to enable dual mode operations (DC and DCC when applicable). That value enables the 4 digit address. Then when you exit programming, dial in the new address and acquire the loco. It should now move.
It should be the same for the Tsunami.
Meyblc - Sounds like the same problem I had. After talking at length with Allen at Soundtraxx, he said I needed a programming booster for my programming track. Seems my Digitrax booster and other like boosters are not powerful enough for these Tsunamis to use. Allen recommended Soundtraxx's booster but no one had one. So, I went to Tony's Trains and bought his booster called PowerPax for about the same pricey price but, if you plan more Tsunamis, it's worth the trouble it saves. It's easy to install. You just put it into the line between your primary booster and your programming track. Once you plug in the power source, you program as usual. Hope this helps.
I purchased a Tsunami heavy steam decoder for my 2-10-2. Installed it and can only get the speaker to work. It accepts the 4 digit address on the programing track but won't move on the mainline. Speaker only plays the sound of the engine in "idle", but won't make the sound of the bell, whistle or anything else. A Red light comes on on the side of the Tsunami decoder with track power is on.
Any idea's?