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Siemens prisma 2 vc has lost volume - Audio Players & Recorders

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It is a loose connection or cold solder and cleaning problem this is the main caused of no volume..Cold solder issues - each component is soldered into small holes on the printed circuit board which in turn connects said component to the other components. Due to time, heat, use, some solder joints would be cracked or loose. It is possible that the cold solder is still minimally connected (hanging by a thread). When the receiver turns on heat would be generated which would be sufficient to further loosen up the solder joint to the point it no longer provides electrical contact. Jarring the unit creates movement inside enough to re establish the contact, sometime good enough sometimes not enough.

Again, since the unit still operates (sometimes) then it is highly probable that there are no defective components. As you have surmised, it is possibly a loose connection, solder joints are "connections" except that molten soldering lead is used to attach/connect the component to the board, "loose connection" in this sense is equal to "cold solder".

Again on the assumption of no defective parts, then seeking a more experienced buddy for the soldering might be to your advantage. This is of course in addition to the possible electrical hazards when repairing....

Good luck:

Regards,
VOTIT

DON'T FORGET TO RATE;

Posted on Aug 07, 2008

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Hi this is amber I have 2x4 ohm qvc audiobahn abass2012P how would I correctly run them to get best bass n max power efficiency I have a soundstream Picasso 1000watt 4 channel bridge able amp to hook em up...


I assume you are replacing the built-in Audiobahn power amplifier with your 4 channel Soundstream amp. If so, you can set the Soundstream for bridge mode which should net you 2 high power channels of 250Wrms@4ohms or 500Wrms total power (if the speakers are quad VC), or alternatively, non bridged for 4x125Wrms (if the speakers are dual VC). You can see why below.
Next, you need to confirm each subwoofers coil configuration as follows: If each woofer is quad, there will be 8 connectors; if dual VC, then there will be 4 connectors. For dual VC, if each VC is 4ohm, you can choose between 8 or 2 ohms by series or parallel wiring. If each VC is 2 ohm, you can have 4 ohms in series to use. This can be determined with an ohm meter across one set of VC terminals. If you can get 4 ohm for each speaker, this will allow you to use the 2 channel bridged mode with each speaker getting the full 250W. If each VC is 2 ohm, use non bridged mode and run each of the 4 channels to each VC. For this case, use a 2 to 1 RCA jack to sum the two channels for each speaker on the amp's input side to make the signal 2 channel instead of 4 channel. Below are examples of quad and dual VC for reference only, the wiring may not match your setup which will depend on your VC resistance (impedance) measurement. Don't forget to set your HPF(High Pass Filter) as this is a subwoofer setup.

quad vc-bsudq2jd4xz1a3m0o2e0expj-1-4.jpg

dual vc-bsudq2jd4xz1a3m0o2e0expj-1-7.jpg

Nov 17, 2017 | Car Audio & Video

1 Answer

Amplifier turns of at volume 2


Don,t turn it over 2 then,LOL: It has developed a internal problem end is going into what is called the protect mode. You will have to take it in for repair.

Oct 26, 2012 | Audio Players & Recorders

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Http://www.facebook.com/people/Patricia-Geiss/100002655619425


+4917677424185 Email Transcript [HVD] ====== Start time: 1/5/2012, 2:12:7 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:12:7 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:12:7 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [YP] ====== Start time: 1/5/2012, 2:12:7 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, http://www.facebook.com/people/Patricia-Geiss/100002655619425 [YP] ====== Start time: 1/5/2012, 2:12:7 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [HVD] ====== Start time: 1/5/2012, 2:12:9 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, info@web.de [YP] GetYoutubeURLType() = -1, info@web.de [YP] ====== Start time: 1/5/2012, 2:12:12 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, info@web.de [YP] WinHttpCrackUrl() = 12006, info@web.de [YP] GetYoutubeURLType() = -1, info@web.de [YP] GetYoutubeURLType() = -1, info@web.de [YP] ====== Start time: 1/5/2012, 2:12:51 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, info@web.de [YP] WinHttpCrackUrl() = 12006, info@web.de [HVD] ====== Start time: 1/5/2012, 2:14:48 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:14:48 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [VC] ====== Start time: 1/5/2012, 2:14:48 [VC] Module VC Log Version = 1,7,15,426 [VC] OS Info 6 0 S 2 0 [YP] ====== Start time: 1/5/2012, 2:14:48 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, http://www.facebook.com/people/Patricia-Geiss/100002655619425 [YP] ====== Start time: 1/5/2012, 2:14:48 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [HVD] ====== Start time: 1/5/2012, 2:14:49 [HVD] Module HVD Log Version = 2,12,32,426 [HVD] OS Info 6 0 S 2 0 [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] ====== Start time: 1/5/2012, 2:14:51 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] WinHttpCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] ====== Start time: 1/5/2012, 2:15:11 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] WinHttpCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] GetYoutubeURLType() = -1, snc4/203372_100002655619425_1800818_n.jpg [YP] ====== Start time: 1/5/2012, 2:15:15 [YP] Module YP Log Version = 2,12,32,426 [YP] OS Info 6 0 S 2 0 [YP] InternetCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg [YP] WinHttpCrackUrl() = 12006, snc4/203372_100002655619425_1800818_n.jpg

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Feb 09, 2012 | Health & Beauty

1 Answer

Toshiba VC-L2B Remote Control Sound volume bar is moving up and down, but there is no sound out of speaker.


Check to make sure the wiring between the sound bar and your audio source is hooked up correctly. Check the source to see if it has it's own volume control. Many TVs require external speakers to be enabled in the "audio" section of your TV's "Settings" menu.

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I have a hugh, older model, 2000 Toshiba TV, but I can't find a remote to work it. I have purchased a dozen or better and no good. I have 2 Toshiba TV remote controls. I donot know weather they go with...


If you only want to control the volume and channels, then a "Oneforall" remote will work. If you want to sell the toshiba vc-661T remote, email me. mike49309@hotmail.com

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Lost remote on toshiba w528


You can select those to record with out the remote by setting the record timer to record. For example, if you want to record from one of those input channels on Friday 1 January 2009 at 9:00 to 11:00, it will allow you to choose that as an input channel in that program menu. If not, you will want to buy a replacement remote. VC-522 is no longer available, but VC-617 and other models are.

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1 Answer

Looking to use iPod, no manual to tell how to switch to the addaptor


You definitely can wire an auxiliary input into a pioneer DEH-1400. The design of this unit is highly modular and thanks to the engineers who designed it there is an easy, straightforward way to add an aux input to the unit. The way to do it is to decouple the the AM/FM receiver stage from the volume control/Amplifier stage and inject your MP3 audio signal there. If you have experience taking things apart, know how to use a soldering iron and are good at basic electronic wiring you can do it. It does take some time but for me, it was worth it.

Look for and down load the service manual for the deh-1400. I saw it on a number of sites and at least one of them lets you D/L for free. This has a schematic and will help you understand everything described here.

There are spare (unused) line level audio inputs to the Volume control (VC) chip but I was concerned that I would have to somehow re-program or spoof the system controller to tell the VC chip that the spare is being used, so instead I just decoupled the AM/FM receiver line stage from the VC chip. This is easily done by desoldering and removing jumpers JP96 and JP100 from the circuit board. You will see the jumpers when you take the unit apart, they aren't shown on the schematic or labled on the PWB layout drawing. These jumpers connect the FM line out to the input side to C311 and C312. Once the jumpers are removed, you now have a usable stereo line level input to the VC chip that utilizes all of the audio equalization and amplification features of the unit.

So how do you select between AM/FM source and Aux. input source you ask? Well, I just took the brute force approach and wired in miniature Double Pole, Double Throw (DPDT) Switch. One position joins the FM stage to the VC chip (like the jumpers previously did) and the other position connects the Aux. input to the VC chip. A convenient space near the head unit (on my 15 year old truck) was available on my dash to mount the switch and 3.5 mm stereo input jack. (sweet).
Another way to do it is to use a 3.5mm input jack that has normally closed connections which open when the plug is inserted the Aux. jack (like GC electronics part number 30-574). (this saves a second hole in the dash and a switch that you have to flip).
I used twisted, shielded pair wiring for all wiring, (shield used for audio ground) I enlarged an existing hole on the back of the sound deck (between the heat sink and the line out jacks) to run the wiring out. I picked up audio ground at the ground jumper for the VC chip (were C307 and C309 are connected in common). The solution sounds great and works good. Just run the radio in FM mode, plug in your MP3 to the Aux. Jack and ignore the tuning display. (or tell yourself "wow, every station is getting music I like ... and commercial free too!)

Notes on Input volume level setting and input impedance: If you are plugging your mp3 player directly into the Aux. jack you will probably notice that you should adjust the volume level on the mp3 player in order to match the volume level that is fed from the AM/FM receiver to avoid a sudden change in volume level when switching between sources. If you are getting fancy (like I did) and putting a docking station into your vehicle or you just don't want someone plugging in their mp3 player at max volume and making you have to then turn the radio volume down, you should put an attenuator circuit in line with the Aux. input. The attenuator circuit that I used is a simple home made (dual for Left/Right) resistor divider network. I used the same resistor values that pioneer used in their design coming out of the AM/FM receiver stage. (2.7K Ohm for the series elements, 1.6K Ohm for the shunt elements) I used 1/4 W, 2% metal film resistors. This will provide approx. 4.3dB of attenuation and should match the line level out of your MP3 (or the earbud out at max volume setting) to the volume level sent out by the FM stage thus allowing smoother volume transition when you plug the MP3 player in. The resistors also provide some isolation/matching between the (relatively) low impedance of your MP3 output and the VC chip. (The attenuator is really optional but I like having the volume levels matched when I move between sources).
Good Luck, worked for me.
Bob D

Aug 16, 2008 | Pioneer DEH-1400 CD Player

1 Answer

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I found this pdf here: http://www.usersmanualguide.com/sharp/video_recorder/vc-a560u_h960u_h961u

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1 Answer

Can't get connected


1.open your web browser and and type http://192.168.254.254 to access the DSL web page
2. click on the setup button to configure the dsl. the following are very neccessary to get the modem running

VC,DHCP,ISP password all in the setup environment

your VC must come from your isp so talk to them about it

am using the same thing in my office

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