Question about Cyberhome CH-DVD 300 DVD Player

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Unit won't power up. Have checked fuse, Good. Now what?

Unit won't power up. I have tested the fuse, OK

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  • kamical May 16, 2009

    I don't know just yet. I will respond when I have the answer. Thanks for the great lead!

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Check out this website for troubleshooting tips and repair of you dvd player. Paste the website into you address bar. http://www.drx9000repair.netfirms.com/ They have a lot of information on repairing these players and they also do repairs.Hope this helps you with your problem.

Posted on May 16, 2009

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Check the 5V power supply output. If its less than 4V than replace the filter caps on the power supply board.

Posted on Mar 19, 2010

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2 Answers

Hello my name is Christopher I have a 96 Chevy K 1500 5.7. my fuel pump isn't turning on. I have a new relay. good pump and wiring seems intact.I tried an experiment( carb swap) and removed the pump...


check that the earth wire is making good contact , when ignition off the relay should have power to one prong , does it ? the brighter light on one prong than the other does point to a earth problem though, i presume you have checked the fuse board , as you know some fuses feed thing's not mentioned , worth a check , keep me posted if you wish

Nov 03, 2014 | 1996 Chevrolet K1500

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Weathermaker 9300ts wont turn on ac compressor. The insind blower is working The fuses at outside unit is good and yes power is there. the heater works. no flasing lights


How do you know power is at the outdoor unit? Did you check it with a meter? Check your breaker. If there's power at the outdoor unit, then shut the power and test your contacter. If the contacter has supply power then check the low voltage (24-28 volts) that operates the contacter, and if none check the low pressure cut-out,high pressure cut-out and make sure the thermostat is calling for cool. All ok so far, then test your capacitor. I forgot to mention to check for loose, broken, and disconnected wires.

Aug 24, 2013 | Carrier Heating & Cooling

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GE Spacemaker (LVM1750) Microwave Oven


If the source voltage, the fuse inside the unit are good someone has to follow the voltage in to see where it stops.

Dec 23, 2012 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Won't run


see this causes and fix it. God bless you
No Lights or Power, Unit seems Dead First check is the main fuse of the unit. On countertop units, you will need to take the shell off. The fuse will be close to where the cord comes through into the unit. OTR units, this main fuse is usually behind the control panel or possibly behind the vent. Usually the fuse is obvious if blown, otherwise test with an OHM meter, if open, replace fuse.
Some brands will also have a thermal cut-off fuse in the incoming voltage line to the control board. Older Maytags and Samsungs have this fuse in it. This thermostat looking fuse is usually above the oven cavity somewhere under the outside shell. Sometimes you can get to it through the vent of OTR models. Test with an OHM meter, replace if open.
Test the switchs door see diagram


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Oct 10, 2012 | Frigidaire FMV156DC Microwave Oven

1 Answer

I have a Harmon Kardon CDR 2. Won't power on. Fuses test good. any suggestions?


The problem is more than likely in the audio output ic usually heatsinked, part of the power is fed back into the system energizing the circuits.

Apr 17, 2012 | Audio Players & Recorders

2 Answers

My turn signals won't come on at all?


check the fuse if good then turn on the hazard lights if they work then you probably need a turn signal flasher which is a separate flasher unit then the hazard one.it usually looks like the hazard one so with the hazards on and locate it then you will know what the signal flasher looks like and you will also know not to change the wrong flasher unit.the signal flasher is often located at or near the under dash fuse panel or somewhere in the dash you don`t say what type of car your talking about.

Dec 12, 2011 | Cars & Trucks

1 Answer

Power turns on but nothing else turns on, just the display screen. is there an easy fix ie fuse or something?


CHECK BREAKER AT MAIN BOX , SHUT OFF BREAKER ALL THE WAY OFF AND BACK ON. IF YOU DO NOT HAVE BLOWER WHEN YOU TURN FAN SWITCH TO ON THEN YOU STIIL HAVE NO POWER TO UNIT . GO TO OUT SIDE UNIT ON GROUND AND PULL OUT DISCONNECT FUSES AND TEST THEM OUT OF FUSE HOLDER LIKE AUTO FUSES. IF UNIT IS ON ROOF SHOULD HAVE FUSES UP ON ROOF IN 6  X4 GRAY BOX. SHUT OFF BREAKER FIRST BEFORE FUSE TEST. IF FUSES OK AND BREAKER OK THAN YOU MIGHT HAVE BLOWN TRANSFORMER.

Apr 21, 2010 | Danby DAC9003D Air Conditioner

1 Answer

I have a Sharp portable room air conditioner model CV-P10NC. The power plug RESET button and TEST button will not click in order to check out the power plug as the unit will not turn on. They did test O.K....


the fused9G.F.C.I.) cord you speak of is probably the G.F.C.I. built onto these units by design, can you or someone you know get access inside the unit and :Hot-Wire" the units cord and,bypass the power cord ( Just To Test the Unit)and see if it stays operational then replace bad unit cord if this is it.

Sep 12, 2009 | Heating & Cooling

1 Answer

My Hp flatbed scanner has no power, but the fuse is ok.


Some of the HP scanners have a removeable cord like the one on your desktop PC. Check to see if ther'e a loose connection to the scanner end.
Remove and test the fuse or the circuit with an ohmmeter.
If possible, verify power at both ends of the fuse while plugged in.
If there is power through the fuse I'd test the switch. If they are both OK, and power gets through both the fuse and switch, then the unit is likely toast.

Good luck, Jidza

Jan 23, 2009 | Computers & Internet

5 Answers

Error Message C3451


It is a fuser error.

Try resetting. To reset a Rank A error follow these steps:

1. Turn OFF the Main Power Switch.
2. Turn Main Power Switch ON while pressing the Utility/Counter key.
3. Touch [Trouble Reset].
4. Check to make sure that [OK] is displayed and the it has been reset.
5. After turning off the Main Power Switch, turn it on again more than 10 seconds after and check if the machine starts correctly.
If the error recurrs then do the following:
1 Check the Fusing Unit for correct installation (whether it is secured in position).
2 Check the Fusing Unit, PWB-M and PU1 for proper connection and correct or change as necessary.
3 Change Fusing Unit
4 Change PWB-M
5 Change PU1

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