hotwaterwizard
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Posts posted by hotwaterwizard
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The best way to deal with this is to Disconnect power. Then get some Electronic Cleaner from Radio Shack and open it up and spray every Button and Switch. Also the circuit board. (NEVER USE WD40 !!! IT WILL MELT THE CARBON ON THE VARIABLE RESISTORS!)
Then use a Blow Dryer and dry everything out real good.
Wait about 8 hours before you plug it back in so everything can dry real good.
If this does not work we may need to dig deeper for solutions. -
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LOL So right!
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Kenwood KR-6400 Service Manual or Schematic Needed. Maybe I can catch it before it is Deleted.
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Well then I guess I break the Law by posting Service Manuals and this whole section should be Deleted.
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http://www.copyright.gov/
What Is Not Protected by Copyright?
Several categories of material are generally not eligible for federal copyright protection. These include among others:
Ideas, procedures, methods, systems, processes, concepts, principles, discoveries, or devices, as distinguished from a description, explanation, or illustration -
So all of my Datasheets are now Illeagal and so are all of the Datasheets on all of the Datasheet search Engines?
I think Not -
We are not changing the material in any way. We are not charging a price to make money.All Datasheets are copy righted so why not delete the whole sections on Datasheets and Service Manuals. All are copy righted.
Why bother uploading any thing then ! -
We are not changing the material in any way. We are not charging a price to make money.All Datasheets are copy righted so why not delete the whole sections on Datasheets and Service Manuals. All are copy righted.
Why bother uploading any thing then !
??? ??? ??? -
Now it works. How strange hmmm
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???
What is this all about?
http://www.electronics-lab.com/downloads/index.html
Forbidden
You do not have permission to access this document.
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Web Server at electronics-lab.com -
Monostable Flip Flop
The monostable flip flop, sometimes called a 'one shot' is used to produce a single pulse each time it is triggered. It can be used to debounce a mechanical switch so that only one rising and one falling edge occurs for each switch closure, or to produce a delay for timing applications. In the discrete circuit, the left transistor normally conducts while the right side is turned off. Pressing the switch grounds the base of the conducting transistor causing it to turn off which causes the collector voltage to rise. As the collector voltage rises, the capacitor begins to charge through the base of the opposite transistor, causing it to switch on and produce a low state at the output. The low output state holds the left transistor off until the capacitor current falls below what is needed to keep the output stage saturated. When the output side begins to turn off, the rising voltage causes the left transistor to return to it's conducting state which lowers the voltage at it's collector and causes the capacitor to discharge through the 10K resistor (emitter to base). The circuit then remains in a stable state until the next input. The one shot circuit on the right employs two logic inverters which are connected by the timing capacitor. When the switch is closed or the input goes negative, the capacitor will charge through the resistor generating an initial high level at the input to the second inverter which produces a low output state. The low output state is connected back to the input through a diode which maintains a low input after the switch has opened until the voltage falls below 1/2 Vcc at pin 3 at which time the output and input return to a high state. The capacitor then discharges through the resistor ® and the circuit remains in a stable state until the next input arrives. The 10K resistor in series with the inverter input (pin 3) reduces the discharge current through the input protection diodes. This resistor may not be needed with smaller capacitor values.
Note: These circuits are not re-triggerable and the output duration will be shorter than normal if the circuit is triggered before the timing capacitors have discharged which requires about the same amount of time as the output. For re-triggerable circuits, the 555 timer, or the 74123 (TTL), or the 74HC123 (CMOS) circuits can be used.
Copied from http://ourworld.compuserve.com/homepages/Bill_Bowden/page9.htm -
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Why would someone Delete a File posted by a moderator helping someone with a requested File?
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Lets try again.
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Why was my attachment Deleted by Admin
http://www.electronics-lab.com/forum/index.php?topic=7296.0 -
Why was the attachment Deleted?
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I tried many different common part numbers and nothing came up.
uPc1156H
uPc1280
TA8718
TA8211AH
LA6902
LA1460
M52777SP
MB3722
MB3730
BA3917
BEL187
HA13001
HA1339A -
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Here you go
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I Think the LINK.
Here is a new one http://www.edaboard.com/forums.html -
Digikey has them in stock and ready to ship.
http://www.digikey.com/scripts/DkSearch/dksus.dll?Detail?Ref=453315&Row=433948&Site=US
datasheet
in Datasheet/Parts requests
Posted
This one is tuff all I can find so far is Panasonic is the manufacture.