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BEFORE DOING ANYTHING DISCONNECT OVEN FROM POWER. I do NOT recommend doing repair by yourself, if you NOT are really very familiar with electric repair, or have at least basic training in electric device repair and maintenance. "When door is opened display goes dark. When door shuts display lights all characters and then says "touch clock"." Obviously, by opening door, oven gets disconnected form power line.
This is mostly caused by loose connections on wiring socket, and can be anywhere inside. Check security micro switch on door latch. This switch normally disables only running the oven when door is open, for security reasons. In your case, it seems that opening door disconnects oven from input power. Sometimes the switch is loose, or wires are not firmly pushed in the socket. If the power line wiring is loose, and by opening door looses contact with socket, it can touch metal housing inside, cause short, electric shock, serious even mortal injury and fire. This is dangerous high voltage switch, and to access it one must open oven from the back and take off the cover. I do not recommend doing it by your self.
Rem: Replacement micro switch is couple dollars.
Reboot it by sliding the power button to off and holding it there. If it still doesnt shut down pull the battery out then hold the power button for 10 seconds. Put battery back in and reboot. Also check to make sure that there are not any updates available for your PSP
to lock the psp, you need to activate the hold button(by switching the power button downwards). when an issue of a psp locking or going to the hold position by itself arises, it is usually caused by a free-moving or loose power/hold button. the best way out is to send it to a repairer as fixing this would require opening the psp and re-adjustment or replacement of the inner mechanism. hope this answered your question? please rate
Download MPH Downgrader and Firmware version you want(e.g 1.50) to the Windows-based computer. Connect the PSP Slim to the computer's USB port using the USB connector. Transfer the two programs to the main folder of the PSP Slim. Disconnect the PSP Slim from the computer's USB hub when the transfer is complete.
Turn on the PSP Slim. Go to the Settings/USB Connection in the Home menu and select the EBOOT.PBP file in the PSP\GAME\UPDATE update folder. Extract the MPH Downgrader zip file to the root folder of the PSP. Click OK using the X button if you are prompted that this will replace some files.
Go to Photo/Memory Stick in the Home menu. Wait as the screen goes black and numbers appear. Wait two minutes and then press and hold the power switch until the PSP Slim turns off. Release the power switch.
Wait as the PSP Slim turns on and reboots. Go to Game/Memory Stick in the Home menu and select PSPS Update version 1.50. Press the X button to start the update.
Wait as the update finishes and presents an error message. Press the O button to restart the PSP.
the control chip under the button isnt making contact with the plastic button,, easy fix, take the cover off the psp clean the buttons with a pencil eraser and put the cover back on (without screwing it down) check for contact,,,,if it works then screw it back together if it doesnt then pop the cover off and put a small piece of tape on the select button its self to make up for the slack). Hope this helps you out..it worked for me!
Hi! TRY THESE TO SEE IF WE CAN GET YOU POWERED UP! :)
Confirm the system is not in HOLD mode Make sure the PSP system is not in Hold Mode (in the down position). Slide the Power/Hold switch up to clear Hold Mode. Or try sliding the Power/Hold switch up and holding it there until the power indicator light turns off and the PSP system is completely turned off. Then try turning the PSP on again.
Confirm the backlight is ON Make sure the LCD screen's backlight is not turned off. If it is, press any button to turn ON the backlight.
Confirm use of only licensed products (AC Adaptor, battery pack and charger) The AC Adaptor, battery pack and battery charger must be licensed for use with the PSP system. All licensed products for use with the PSP will have the following logos displayed directly on the product and/or the packaging: If any of the products you are using does not have these logos on them, we recommend that you immediately discontinue the use of these products, as they void the PSP system's warranty, and can cause damage to the system. See compatible peripherals for the PSP system for a full list of supported products. There are some products that can be used with the PSP system that may not display our logos. Products such as San Disk 1GB Memory Sticks, or various USB cables, needs only to be genuinely certified. Look for the genuine certified logos on these products or contact the company which manufactures these products for more information.
Try the battery pack only Unplug the AC adaptor from the PSP system. Make sure a charged PSP battery pack is inserted inside the PSP system. Turn on the unit. If you get power, then the problem may be with the AC adaptor and power cord.
Try the battery pack in a different PSP system If possible, try your PSP battery pack in a different PSP system. If your battery works on a different PSP system, it may indicate an issue with your PSP system.
Try a different PSP battery pack If possible, try a different battery in your PSP system. If a different battery pack does work on your PSP system, it may indicate an issue with the original battery pack.
Try the AC adaptor and the PSP battery pack Insert the battery pack and plug in the AC adaptor. If you still do not get any power, your PSP system may need to be sent in for service (see PSP Service for details).
Try the AC adaptor / power cord only Turn off the PSP system, unplug the AC adaptor, and remove the battery. Now plug in the AC adaptor to the PSP system with the battery removed. Confirm the AC adaptor and power cord are firmly connected to each other. Now make sure they are also firmly connected to the PSP system and the electrical outlet. If the PSP system powers on, the battery may need to be replaced.
Check AC adaptor and power cord for damage Visually inspect the AC adaptor and the power cord for damage. Do not use if frayed, cut, or damaged in any way.
Check the electrical outlet Confirm the electrical outlet that you are using is active (receiving power). Try using a different electrical outlet.
Try a different AC adaptor and power cord If possible, try a different AC adaptor and power cord. If a different AC adaptor and power cord does not work, the PSP system may need to be sent in for service (see PSP Service for details).
Confirm no unauthorized system software or downloads were used Confirm that you have not used any unauthorized system software updates or downloads on the PSP system. Use of such unauthorized firmware updates voids the warranty and can damage the PSP system.
WLAN turned off Make sure the wireless (WLAN) network function is not in use while charging. The battery pack cannot be recharged when the WLAN function is being used.
Power surge If you experienced a power surge, shortage, or a lightning storm in your geographical area recently, this may have affected the PSP system's power supply. Please contact Consumer Services below for information.
Ok...this sounds crazy but it happened to one of my PSPs. I updated the firmware on my system and the menu started stalling and taking a long time to respond. I shut the PSP all the way down....holding the power button until the light shuts off (about 4 or 5 seconds)...Hold the R button and power the system on again (you should be in recovery mode)...go to CPU speed and make sure it is either set at "Default" or "222"....I belive 222 is the default setting....also make sure the UMD is also set at "Default" or 222....if you're going to use the UMD.
This is a classic problem with the Power switch board. It may seem like a problem with the home button, but the Button bar that the Home button resides on connects to the Power Switch board inside. I can repair this for you for $37 including return shpping. Contact me at Repairtech@playstationclinic.com I run the Playstation Clinic at www.playstationclinic.com