i got mine from mitsubishi! 1-800-553-7278 to get directly to the parts section. enjoy because i love mine! by the way do you mind telling me how you cracked yours because i have an interesting story to tell. [email protected]
The caps you're describing are in the power supply of the DM and a very common problem. Another problem in that same box is the E2P module. The E2P is a small board towards the rear of the module plugged into the module with a multi-pin connector. Unplug the E2p and re-install the DM and see if the unit powers up... If it does the picture won't look very good but at least you'll know if the E2P is keeping it down.. If it still won't power you've eliminated the E2P as a porblem.
Next let's take a look at the error code for some clues. This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source)
Then, let me know what you find...
Bill
1. Check for no 8.4 volts DC at pin 3 of PC9A10 on the Power PCB, if low or missing replace PC9A10 part # 268P058020. 2. LED does not blink at plug in. Check for 3.3-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P109010 on the Control PCB. 3. LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067002 4. LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). 5. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds 6. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001 7. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001
1. Check for no 8.4 volts DC at pin 3 of PC9A10 on the Power PCB, if low or missing replace PC9A10 part # 268P058020. 2. LED does not blink at plug in. Check for 3.3-volts DC at connector RF pin 3 (system reset) if low or missing suspect the reset switch S7L20 part # 432P109010 on the Control PCB. 3. LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067002 4. LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). 5. LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds 6. LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001 7. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001
There is no way to tell if it needs just resoldering only a couple minutes if the vertical IC is defective most shops will say you need a new Circuit board. thats sad to say but most shops dont do component level repairs anymore, they just switch Circuit boards as they can charge more that way, and not have to reply on having the experience to actually diagnose the problem.Thats very unfortunate but true.
The lamp is not enabled possibly due to the colour wheel motor not turning.
Any broken glass jamming it?
Or the lamp ballast has failed due to an old/worn lamp.
Your Mitsubishi VCR HS-U580 looks to have a problem with the information rollers and drum. Here are some things to check:
Look for something blocking the VCR or cassette compartment that would possibly be stopping the guide rollers.
Check the belt that drives the VCR mechanism. If it is loose or broken, you may also need to substitute it.
Clean the video heads using a head-cleaning cassette to make certain they're not dirty.
See if the drum motor is working. If it is not spinning, there may be an issue with the motor.
If the trouble persists, it's an exact idea to get assistance from a professional technician or contact Mitsubishi's purchaser support for advice.
Be cautious when dealing with electronic devices, and if you are not certain what to do, it's great to get assistance from an expert.
i think finding a downloadable service manual for your Mitsubishi HS-U580 VCR might take some searching, but here are a few options:
Check the official Mitsubishi website's support section. They might offer downloadable manuals for older models.Many online appliance parts stores like RepairClinic or AppliancePartsPros stock service manuals for various brands and models. Search for your specific VCR model to see if they have it available.Websites like ManualsLib or iFixit sometimes host user-uploaded service manuals. While the availability and quality can vary, it's worth checking. If online options fail, consider purchasing a physical copy of the service manual from online marketplaces like eBay or Amazon.
Remember, some websites might charge a fee for downloading manuals. Always be cautious of suspicious websites and download from reputable sources.
You can purchase a replacement power cord for your Mitsubishi model #LT-55164 from TVserviceParts.com. The part number for the power cord is 246C638010 and it costs $18.40.
Hoping you did not have electric overload that damaged the power supply, try unplugging the set and push the button On until no lights indicate anything. Then wait about an hour so the capacitors would empty themselves further. Next plug it back in and see if this worked. It is never wrong to push the edges a little in finding if the cables that go around the screen have a problem at that point. When one opens the TV (off power and unplugged) these flat cables should be checked for corrosion and right position in connectors. Corrosion is caused by little moist only, combined with the electricity. Then see if capacitors from the power supply, or any at all, have expanded tops. Those are the larger and smaller towers with metal on top that is divided in three parts. New ones alike can then be ordered but replacing requires basic skills. Further examples can be found on YouTube. Capacitors are common to fail early. Those larger ones have dangerous high voltage and can hold their charge for long span of time. it is not uncommon for devices like this to fail after being off.
If your Mitsubishi TV LT-55154 has no picture but has sound and the green light is solid, there are a few potential causes for this issue:
Faulty backlight: The backlight in your TV is responsible for illuminating the screen. If the backlight is not functioning properly, it can result in a black screen while still producing sound. You can try shining a flashlight on the screen at different angles to check if you can see any faint images. If you can, it indicates a backlight issue. In such cases, the backlight unit may need to be replaced. Contact a professional technician or the manufacturer's support for further assistance.
Loose or damaged cables: Check that all the cables connecting your TV to external devices (such as cable/satellite boxes, DVD players, or gaming consoles) are securely plugged in. Ensure that there are no loose connections or damaged cables, as this can lead to a loss of video signal.
Incorrect input/source selection: Make sure that the TV is set to the correct input or source that corresponds to the device you want to watch. Use the TV remote to cycle through the available input options and see if the picture appears on any of them.
Display settings: It's possible that the display settings on your TV have been inadvertently adjusted or misconfigured. Check the TV's menu options for any settings related to picture or display, such as brightness, contrast, or picture mode. Resetting these settings to their default values might help resolve the issue.
Hardware malfunction: In some cases, a hardware malfunction within the TV, such as a faulty video processing unit or mainboard, can cause a loss of picture. In such situations, it's recommended to contact a professional technician or the manufacturer's support for further troubleshooting and potential repairs.
Remember to exercise caution when working with electronics, and if you are unsure about any steps or lack the technical expertise, it's best to seek professional assistance to avoid causing further damage to your TV.
If your Mitsubishi WD-77731 TV screen has turned completely white with white vertical lines, it is possible that there may be a fault in the display panel or the video processing circuitry of the TV. This could be caused by a variety of issues, including a faulty LCD driver board, a loose or damaged video cable, or a problem with the TV's power supply.
Here are some troubleshooting steps you can try to determine the cause of the problem:
Check the video input: Ensure that the video input to the TV is working properly by connecting a different video source, such as a DVD player or game console, to the TV.
Check the video cables: Inspect the video cables that connect your video source to the TV for any damage or loose connections. If you find any damage, replace the cable.
Power cycle the TV: Turn off the TV and unplug it from the power outlet for 1-2 minutes. Then, plug the TV back in and turn it on to see if the issue persists.
Check for firmware updates: Check the Mitsubishi website to see if there are any available firmware updates for your TV. Updating the firmware may help to resolve any software-related issues.
If none of these steps resolve the issue, it is recommended that you contact a professional TV repair service to diagnose and fix the problem.
