|22-03-2009||different problem. i can turn it on. my display will light up, but nothing in the display, so i cant play on the keyboard. i can just turn it on and off. can someone help me?|
|22-03-2009||solder||i need referens of ps amp yamaha|
|22-03-2009||Does the Q804 or the Q800 have both + and - leads or should I wire the fan to the - ground on the chassis?|
|22-03-2009||Both points reference chassis ground.|
|22-03-2009||Can you substitute with an external power source as "test"?
Just make sure ratings are similar. If, for example, the 11 volt supply you mention is up to 3 amps, you could use a 12 volt supply (at any current rating equal or exceeding 3 amps) |
|22-03-2009||You have raw B-Plus. What about stand-by(s)? What about secondaries?|
|22-03-2009||LXI volume control pot||I have an old LXI stereo and I need to replace the volume control pot. It is a 100k ohm pot. I don't know where to find one. I have a picture of it but I do not know how to put up and image on this board. If you email me i could send you a pic. i need hel|
|22-03-2009||[quote:64d82f9f8d="jts1957"]You have raw B-Plus. What about stand-by(s)? What about secondaries?[/quote:64d82f9f8d] DOnt have the Stand by or Secondairies|
|22-03-2009||pic||sorry pic did not work. i have to host it somewhere else|
|22-03-2009||Re: pic||[quote:7f4f6d4bd2="ronbhaines"]sorry pic did not work. i have to host it somewhere else[/quote:7f4f6d4bd2] I made a mistake the pic does work|
I have a Panasonic DRM-ES30 DVD-VHS with a problem.
When i play a video on the vcr i have lots of dropouts in the picture.
The brighter the picture the more dropouts.
It looks like "satellitesparks" if you have a satellitedish not p|
|22-03-2009||Dell 1707fp||Thanks for the suggestion.
That was my next test. The DC converter has overcurrent and thermal protection built in. If it's not the chip itself, something else is pulling it down. It does get very toasty.|
|22-03-2009||Power to regulator and its driver I.C.?|
|22-03-2009||This Parts & Service manual can now be purchased for $10.77 and downloaded immediately after payment from:
|22-03-2009||There is raw B-Plus. I think transformer is dead.|
|23-03-2009||Raw B-Plus must be on one terminal of the regulator.
The regulator drive IC must have a "start-up" voltage (usually derived from Raw B-Plus through high value resistors).
Regulator drive IC must output a drive signal to regulator for it to wor|
|23-03-2009||yes . i did it ..but no power .. i remove the unit i check ..may be i need the schematic diagram|
|23-03-2009||Wired fan to Q804, unit would not power on. I tested Q804 with a multimeter, it shows 5v when the amp is off. The fan needs 5v DC, any DC points anywhere?|
|23-03-2009||Got it, thanks everyone|
|23-03-2009||TELEFUNKEN TV 34" INtermittent power||internittent power|
|23-03-2009||Got the fan wired to a switch. The fan powers up no problem when the amp is off. However, when I turn the amp on and then flip the switch for the fan, the amp shuts down.|
|23-03-2009||How big is this 5 volt fan? How much current does it draw?
5.6 volt is stand-by source - 2SD1387 should handle up to 2 amps if I read the datasheet correctly.|
|23-03-2009||It is one fan housing with two 80mm fans in it, each drawing .21A|
|23-03-2009||I assume they run with no problem on a 5 volt external supply.
Must be too much of a load when hooked to the standby supply.
Could try off one of the 9 volt or higher supplies, maybe with a three-terminal 5 volt regulator IC?|
|23-03-2009||Can you tell exactly which make and model of CD changer you have, and what equipment you are going to connect it to?|
|23-03-2009||CD changer Wire||I think your question is inadequate to answer the doubt.be more specific as to your question with the model name and description and also the wire that you are using.Connecting to what?|
|23-03-2009||Electronics General||The download manual is self sufficient usually for all well defined brands.Have to go through it pretty thoroughly and is sure to get what is needed to fix up the system.|
|23-03-2009||Dell Latitude CS||This manual will guide you on removing and replacing FRU components, assemblies and sub assemblies in your DELL Latitude CS Portable Computer. It contains useful information including list of Field Replaceable Unit, schematic diagram, exploded diagram and|