Question about Sharp 20F640 20" TV

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Well demand want the circuit diagram of this t.v

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Sharp 21sl71w

Posted on Aug 16, 2008

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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2008 Ford Escape headlights too dim. Replaced bulbs, still not good. Brights are about what the dim setting should be (nobody flashes us when the brights are on). What should I do?


Do you know how to use a DVOM - digital voltmeter to test electrical circuits ? Sound like you have a resistance problem . High resistance . Voltage drop testing the circuit could find the problem . First off looking at a wiring diagrams to see what all is involved in the circuit . Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine . Under system click on lighting , then under subsystem click on headlamps . Click the search button , then the blue link . Looking at the diagrams i see the smart junction box controls the headlamps ,low & high beam . The high beams are turned on by the SJB energizing a relay . This relay is of the PCB type - printed circuit board . non servicable . It may be a good idea to take it to a ford dealer or someother qualified repair shop an have it check for DTC'S - diagnostic trouble codes . Not autozone or advance auto etc... they can not read these type codes .
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
Electric Testing Techniques You Need to Know

Principles of Operation
The smart junction box (SJB) monitors the multifunction switch position by sending multiple voltage reference signals to the multifunction switch. When the multifunction switch is in the HEADLAMPS ON, FLASH-TO-PASS or HIGH BEAM position, the voltage signal is routed to ground. When the SJB receives an input requesting the headlamps on, the SJB supplies voltage to the low beam and high beam bulbs as necessary.
The SJB utilizes a protective circuit strategy for many of its outputs (for example, the headlamp output circuit). Output loads (current level) are monitored for excessive current (typically short circuits) and are shut down (turns off the voltage or ground provided by the module) when a fault is detected. A continuous diagnostic trouble code (DTC) is stored at that time for the fault. The circuit will then reset after an ignition cycle or customer demand of the function (switching the component on, 30-minute battery saver being energized). When an excessive circuit load occurs several times, the module shuts down the output until a service procedure is performed. At the same time, the continuous DTC that was stored on the first failure will not clear by a command to clear the continuous DTCs. The module will not allow this code to be cleared or the circuit restored to normal until a successful on-demand self-test proves that the fault has been repaired. After the on-demand self-test has successfully completed (no on-demand DTCs present), the continuous DTC will have been cleared and the circuit function will return.
Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index DTC Description Action B1342 ECU is Defective CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved again, INSTALL a new SJB. REFER to Section 419-10 . B1472 Headlamp (Low Beam) ON Switch/Circuit Short to Ground Go To Pinpoint Test F . B1510 Flash-to-Pass Switch/Circuit Short to Ground Go To Pinpoint Test F . B1570 Lamp Headlamp High Beam Circuit Short to Ground Go To Pinpoint Test E . B2501 Headlamp, Left Low Beam Circuit Failure If the low beam is inoperative, Go To Pinpoint Test D .
If the low beam is always on, Go To Pinpoint Test F . B2503 Headlamp, Right Low Beam Circuit Failure If the low beam is inoperative, Go To Pinpoint Test D .
If the low beam is always on, Go To Pinpoint Test F . B2505 Headlamp, Left High Beam Circuit Failure If the high beam is inoperative, Go To Pinpoint Test E .
If the high beam is always on, Go To Pinpoint Test F . B2507 Headlamp, Right High Beam Circuit Failure If the high beam is inoperative, Go To Pinpoint Test E .
If the high beam is always on, Go To Pinpoint Test F . All other DTCs - REFER to Section 419-10 .

Jun 06, 2018 | Ford Cars & Trucks

1 Answer

Wiring diagram for turn signals 2007 Expedition XLT SSV Front left doesnt work... Appears to be no power on the wire for turn signal side of buld.. Park side of bulb is goog and it has a good ground


Wiring diagram isn't going to help you . The turn signals are controlled by a electronic control module . SJB - smart junction box . You need a factory or professional scanner to communicate with the SJB .
Principles of Operation
The smart junction box (SJB) monitors the multifunction switch position by sending multiple voltage reference signals to the multifunction switch. When the multifunction switch is in the LH or RH TURN positions, or the hazard lamp switch is pressed, that input signal is routed to ground.
When the SJB receives a request for a turn signal or hazard lamps, the SJB supplies voltage to the appropriate turn lamps.
The timed on/off cycle is determined by the SJB and is set to flash approximately 80 times per minute if both the front and rear turn lamps operate correctly. If an individual turn signal lamp is inoperative, the SJB flashes the remaining turn lamp approximately 160 times per minute.

Your best bet , take it to a qualified repair shop .

Field-Effect Transistor (FET) Protection
The SJB utilizes a FET protective circuit strategy for many of its outputs (for example, the headlamp output circuit). Output loads (current level) are monitored for excessive current (typically short circuits) and are shut down (turns off the voltage or ground provided by the module) when a fault is detected. A continuous DTC is stored at that time for the fault. The circuit will then reset after a customer demand of the function (switching the component on, 30-minute battery saver being energized). When an excessive circuit load occurs several times, the module shuts down the output until a repair procedure is carried out. At the same time, the continuous DTC that was stored on the first failure will not clear by a command to clear the continuous DTCs. The module will not allow this code to be cleared or the circuit restored to normal until a successful on-demand self-test proves that the fault has been repaired. After the on-demand self-test has successfully completed (no on-demand DTCs present), the continuous DTC will have been cleared and the circuit function will return.
The SJB FET protected output circuits for the turn lamp system are for the LH front turn lamp output and the RH front turn lamp output circuits. The rear turn lamps utilize the stoplamp circuitry and are also protected. For additional information regarding the rear lamps, refer to Stoplamps in this section.

Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Chart DTC Description Action B2A27 Right Front Turn Lamp Circuit Open Go To Pinpoint Test M . B2A28 Right Front Turn Lamp Circuit Short to Ground Go To Pinpoint Test M . B2A29 Left Front Turn Lamp Circuit Open Go To Pinpoint Test M . B2A2A Left Front Turn Lamp Circuit Short to Ground Go To Pinpoint Test M . B2071 Hazard Switch Signal Short to Ground Go To Pinpoint Test N . B2281 Right Turn Switch Short to Ground Go To Pinpoint Test L . B2282 Left Turn Switch Short to Ground Go To Pinpoint Test L . All other DTCs - REFER to Section 419-10 .

Apr 30, 2018 | Cars & Trucks

1 Answer

Asus cg1330-05 motherboard manual


If by schematic, you mean a circuit diagram with all components shown and their values, forget that. There is no such thing. Motherboards are manufacturer proprietary and they do not support independent repair. The "repair facilities" that they authorize are merely there to verify that the board is bad and to determine if the failure is warranted. Then they replace the board. Failed boards are sent back to the factory where they may be repaired or scrapped depending on amount of damage and demand of the board.

Nov 03, 2015 | ASUS Computers & Internet

2 Answers

Airbag light came on my 05 f 150 code is 33 how do I fix it


Check with dealer might be a recall for defective srs.

Apr 18, 2015 | Cars & Trucks

1 Answer

Front dc power outlet not working. can someone tell me which fuse controls it? owners manuel doesn't list it.


Try this: google images 2012 Ford Escape front power wiring diagram.
There is probably a special fuse or even circuit breaker, due to the potential load demand.

Mar 12, 2015 | 2012 Ford Escape

1 Answer

Oven LED stays on


What is the make and model number of your unit?

Nov 07, 2012 | Ovens

2 Answers

2006 Dodge Ram Diesel AC will not work, found code P1274


P1274-a/c Clutch Control Circuit 2 Open You will need the help of the dealer or a factory wiring diagram and diagnostic flow chart to fix this one. I can't find a clear cut answer other than someone that used a fuse for the AC circuit to power another system and the fuse blew out.

Jul 24, 2012 | 2006 Dodge Ram 3500 Truck

1 Answer

How do I connect up the wiring for this please


Yellow/yellow wires are connected to 24volt power supply.powered only on a demand.Red/red is a isloated end switch to turn something on during a demand.Using the end switch can sometimes be optional.

Mar 20, 2010 | Honeywell Heating & Cooling

1 Answer

Xerox Phaser fault 37,002,47:18505


37,0XX.xx Errors - PEST Faults
AC power supplied by power sources such as uninterruptible power supplies
(UPSs) or DC-to-AC inverter systems may not supply correct voltage to
properly power up the printer. Likewise, other devices sharing the same AC
circuit can cause AC voltage sags that cause the printer to fail its AC heater
PEST tests (Print Engine Self Test). The printer may produce any of the
following disconnected heater errors:
■ Printhead jet-stack 37,002.47 or 37,003.48

Error Messages and Codes
■ Reservoir heater, 37,004.40 or 37,005.41
■ Drum heater error 37,006.42
■ Preheater error 37,008.44
■ Ink melters errors 37,009.45 thru 37,013.40
The printer includes several heaters powered by AC. The printer itself can
power up despite insufficient or irregular AC voltage but it may fail its AC
heater tests. This is due the test not measuring sufficient current flowing
through the heater at the moment the test runs.
Devices sharing the printer’s AC circuit shared, such as a laser printer, a
coffee maker, or a space heater, may be placing heavy intermittent demand
on the AC circuit. This sudden inductive demand creates momentary AC
voltage sag that causes the PEST test to fail.
Verify the AC power source prior to troubleshooting these errors. For wiring
diagrams to aid in diagnosing PEST faults, see “Wiring Diagrams” on
page 10-1.
8400/8500/8550/8560 PEST Description
37,001.46: Generic PEST error.
Something went wrong during the PEST process.
37,002.47: PEST Error - Printhead Left jetstack disconnect. The left jetstack is
not drawing the expected power from the supply.

Mar 17, 2009 | Xerox Phaser 8400 Laser Printer

2 Answers

Trying to find a diagram for 1985 grand marquis fuel wiring. My gauge isn't working know and reading Empty.


u don't need a diagram, just replace the gas tank fuel gauge sending unit, that is always the problem in your model.

Mar 17, 2009 | 1985 Mercury Marquis

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