Jwin JV-TV7070 5.5 in. Portable Television Logo

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Question about Jwin JV-TV7070 5.5 in. Portable Television

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Short circuit Living in haiti. I Have a short circuit problemand I need a service or repair manual to solve the problem

Posted by ralph caze on


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Hi you got the factory manual on the page of the product for schematic diagram you need to contact the company... http://www.jwin.com/sites/support.asp?pageID=srvsupport good luck

Posted on Feb 23, 2006


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Code po446

P0446 - Evaporative Emmission Control System Vent Control Circuit

Evap vent valve has only one purpose. It closes in order to seal the vent so the EVAP system can pressurize and ensure there are no leaks. Evap vent valve is usually supplied Batt. voltage with key on. The ECM's driver controls the ground, and when grounded, activates the valve (closing it). If the ECM detects a short to ground, and open,or a short to battery voltage on the control circuit, P0446 will set. Code also may refer to ECM detecting that EVAP system is unable to achieve or maintain vacuum during test.

Causes: A code P0446 could mean one or more of the following has happened:
* Faulty vent valve
* Open, short or excessive resistance on Vent valve control circuit
* Blockage of vent valve
* Bad PCM

Possible Solutions: With a P0446 OBD-II trouble code, here are some things to try:
* Replace Vent valve
* Repair open, short, or resistance problem in control circuit
* Repair open, or short, or resistance problem in power circuit
* Replace PCM

I hioe this helps to solve it.

Receiver turns off shortly after powered on & displays "PROTECT"

are any other devices sitting on top of this unit? if so it could be an overheat.

If you have pets make sure the wires are not chomped on this can cause a fault.

Also make sure you have nothing other than the factory default speakers hooked up to it.

here is what the users manual says
im going to sum it up for ya. if it says protect that means you have a short circuit please unplug the unit resolve the short circuit and plug back in....... here is the link To the users manual


once it is opened as a PDF document go to the search/ find area and type in "protect" and it will say the same thing.

somewhere you have a short your going to have to follow all the wiring again and look closely

Power supply

Hi have a nice day!
Check if new fuse is of same type that is needed ie 2A , 2,5A as manual says. dont put different.
If you put correct fuse and blows then there is a short circuit at power supply area or after it and your TV must take to a qualified repair shop.
If you are familiar with electronic repairs write me down make and model to look for a service manual available.


1.due to some short circuit in your receiver circuit has made the fuses blown
2.Replacing the fuses alone does not get solve.
3. Check the reciever power circuit
4. check whether output is being short circuited
5.Contact service centre
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