Ensure rear access panel is properly closed

Yes, the lights on a Wurlitzer WR 18 jukebox can be changed. The lights in a jukebox like the WR 18 are typically standard incandescent or LED bulbs. To change the lights, follow these general steps:
1. Power Off: Make sure the jukebox is powered off and unplugged from the electrical outlet for safety.
2. Access the Light Housing: Open the back panel or remove any access panels on the jukebox to gain access to the light housing area.
3. Identify the Bulbs: Locate the bulbs that you want to change. They may be visible or covered by a protective housing.
4. Remove the Old Bulbs: Depending on the type of bulb socket used, gently twist or pull the old bulbs out of their sockets. If there is a protective housing, you may need to unscrew or unclip it to access the bulbs.
5. Install New Bulbs: Insert the new bulbs into the sockets, making sure they are securely in place. If using LED bulbs, ensure they are compatible with the jukebox's voltage requirements.
6. Replace Protective Housing: If there was a protective housing, reattach it securely.
7. Close Panels: Close the back panel or any access panels that were opened earlier.
8. Power On: Plug the jukebox back into the electrical outlet and power it on. Test the new lights to ensure they are functioning properly.
Note: It's essential to use appropriate replacement bulbs that match the specifications of the original bulbs to avoid any electrical or compatibility issues. If you're unsure about the specific bulb type or have any concerns, consult the user manual for the Wurlitzer WR 18 jukebox or contact Wurlitzer customer support for guidance.

To remove a paper jam from the exit rollers of a printer, you'll typically need to access the jammed area by opening the printer's covers. Keep in mind that the process can vary depending on the printer model and brand. Here are general steps you can follow to remove the cover and access the exit rollers:

1. Power Off the Printer: Before attempting to remove any jams or open the printer covers, make sure to turn off the printer and unplug it from the power source to avoid any risk of electrical shock.
2. Open the Printer's Top Cover: Most printers have a top cover that can be easily lifted to access the internal components. Look for a latch or release button on the printer's top cover and gently lift it up to open.
3. Locate the Jammed Paper: Once the top cover is open, carefully inspect the printer's internal area, especially around the exit rollers, for any visible jammed paper. If you find the jammed paper, gently grasp it and pull it out in the direction of paper movement to avoid damaging the printer.
4. Check the Rear Cover (if applicable): Some printers have a rear cover or panel that allows access to the exit rollers and other internal components. If your printer has a rear cover, you may need to open it to clear the jam completely.
5. Remove Paper Trays (if necessary): If the jammed paper extends into the paper trays, you may need to remove the trays to access and remove the jam more effectively.
6. Clear Paper Path: Ensure that all remnants of the jammed paper are cleared from the printer's paper path. Check for any small pieces of paper that may have torn during the jam and remove them as well.
7. Close the Covers: After you have successfully removed the jam, close all the printer covers securely. Make sure they are properly latched to ensure the printer functions correctly.
8. Power On the Printer: Plug the printer back into the power source and turn it on. Perform a test print to verify that the paper jam issue has been resolved.

Unplug the printer and open all the access panels. Using a small flashlight may help. Carefully check all areas inside the printer for a stray piece of paper logged somewhere inside. You may need a small pair of pliers or tweezers to remove the piece of paper.

When clearing jams ensure you find the entire piece of paper that was jammed in the printer.

When your done, be sure to securely replace all parts removed from the printer and properly close all the access panels.

Sounds like there is a sheet of paper jammed in it. Try taking off the roller access panel in the back (not the access panel by the cartridges). Make sure to only use clean sheets with proper humidity level to avoid jams. Also fan the sheets before feeding to disperse any static.

lamps going out are normal so don't worry. On this TV, if you replaced with an exact replacement then it's not the lamp. Something is not reattached properly or completely. Normally it pertains to ventilation or a lamp access panel being loose. Check those out and make sure everything is tight. if it still doesn't work then check for blown capacitors on the different boards. My Tv that is a samsung does this when the back panel is not secured properly. Ventilation and proper securing of panels are always important. BUT NORMAL!

Take a few deep breaths and check it all out step by step back tracking areas that you accessed. Sounds like something is definitely loose. Maybe ribbon cables loose, fans, screws, boards, etc. Something is loose in there. Let us know so it updates your solution if this info helps.

The door lock and switch assembly has failed. You may actually hear it click several times before the code appears. If not, it may not be receiving power or signal from the central control unit to activate.

Disconnect power to the washer to avoid electric shock.

Remove the three screws from the rear of the top panel attaching it to the cabinet then slide the panel rearward, and then lift it off the cabinet.

Disconnect the third and the fourth from right, facing the front of the washer, wiring harness connectors from the central control unit. Clean the connector terminals thoroughly then reseat it several times to ensure a good connection between them. Do the same with the connector second from the top on the left side of the central control unit.

After ensuring that the connectors are properly connected, slide the top panel back in place, and then secure it the three attaching screws.

The next thing to do is visually check the door lock and switch assembly for physical damage.

Remove the wire and spring assembly that holds the door gasket to the lip of the door opening. Use a pair of needle-nose pliers to stretch the retaining spring then remove it together with the wire.

Gently peel the part of the door gasket near the door lock/latch assembly off the lip of the right side of the door opening. Remove enough of the door gasket to access the door lock/latch assembly behind the front panel.

Remove the three screws securing the door lock/latch assembly to the front panel and slightly lift it then pull it back off the front panel.

Pull the door lock/latch assembly out of the washer and disconnect the wiring harness. Clean the terminals and reseat it several times.

To replace the door lock and switch assembly (part #8182634); connect the wires properly then secure the assembly into position behind the front panel with the three securing screws.

Put the eased part of the door gasket back in place over the lip of the door opening.

Check that the door gasket is properly seated before securing it with the retaining wire and spring around the lip of the door opening and the door gasket.

Check that ALL of the covers / doors are closed completely. If they are not closed completely and securely, the safety switch will not close and the printer will not work - and displays the error. Since the error is "rear door jam" check the back of the printer...a door panel may have popped open while you were working on installing the memory.

Fuel pump is located inside the fuel tank access cover location. Here's the details:

1. Properly relieve the fuel system pressure.
2. Disconnect the negative battery cable.
3. Open the rear access door.
4. Release the catch for the back seat and tilt the seat out of the way.
5. Move the carpet behind the seat that covers the fuel pump access panel.
6. Disconnect the fuel pump electrical connectors.
7. Remove the screw securing the ground wire.
8. Remove the four screws securing the fuel pump access panel and position it out of the way.
9. Remove the hose clamps connecting the fuel hoses to the fuel pump.
10. Disconnect the fuel hoses from the fuel pump.
11. Disconnect the fuel tank pressure sensor electrical connector.
12. Remove the eight retaining screws securing the sender assembly to the tank.
    WARNING The fuel assembly is easily damaged. Use care when removing the assembly from the tank.
    
13. While twisting and tilting, gradually lift the fuel sender assembly and remove from the tank.
14. Wrap the fuel pump assembly in a rag before removing the assembly from the vehicle.
15. Cover or seal the fuel tank until installing the fuel pump assembly.
16. Remove the retaining hardware that holds the sender to the fuel pump assembly.

To install:

1. Install the retaining hardware that holds the sender to the fuel pump assembly.
2. Remove the temporary covering or seal that was used to protect the tank.
3. Install the fuel pump into the access port on top of the fuel tank.
4. Carefully, twist the fuel pump as necessary to properly position it in the fuel tank.
5. Install the eight retaining screws securing the sender assembly to the tank.
6. Connect the two fuel hoses to the pump and secure with clamps.
7. Connect the fuel tank pressure sensor electrical connector.
8. Insert the ground wire and fuel pump electrical connector through the access hole and install the access cover.
9. Connect the fuel pump electrical connector.
10. Secure any loose wiring with adhesive tape and reattach the carpeting.
11. Release the catch for the rear seat and put the rear seat in the normal position.
12. Close the rear access door.
13. Reconnect the negative battery cable.

I can help you further and show you where you can access the information for free. Good luck!

The L7780 usually has a duplexer which has a rear access panel on it but this is NOT the panel that the printer detects as open.

In the L7780 anything that is connected/slotted into the rear slot/hole is considered to be the rear access panel. This means the duplexer (which is standard on the L7780) is seen as the "rear access panel".

Stand looking at the back of the printer
Inside the slot on the right side you will see a green circuit board with four metal contacts on it. Check that these are not soiled or damaged in any way. Clean if necessary.

On the right side of the dupler you will see only TWO metal pins that spring out and should make contact with two of the contact points. It's possible that these are damaged and/or broken. You may need to free, re-bend, etc... these CAREFULLY so that they stick out properly. Ultimately the goal is to ensure that the metal pins touch the appropriate contacts on the circuit board.

If all else fails, check your warranty and contact HP to see if they can provide a replacement duplexer. If the circuit board itself (in the printer) is damaged though you may need to return the printer itself.

Hope that helps.