Panasonic PT-DZ21K2 PT-DS20K2 PT-DW17K2 PT-DZ16K2 Error U74: Lamp 4 not installed

Panasonic projector · taken from the manufacturer’s manual, pages cited

Error codeU74

The system detected that lamp 4 is not installed. The manual's first action is: “Attach the lamp unit.”

Model
Panasonic PT-DZ21K2 PT-DS20K2 PT-DW17K2 PT-DZ16K2
Display shows
Lamp 4 not installed (U74)
Type
Error code
Source
Manual p. 190

What U74 means

Lamp 4 not installed p. 190

What to do

  1. Attach the lamp unit. p. 190

Before you service the product, read the safety instructions in the manual p. 5.

If U74 is still not resolved

  • Attach the lamp unit. p. 190
    “Attach the lamp unit.”
Open the manual at page 190 All PT-DZ21K2 PT-DS20K2 PT-DW17K2 PT-DZ16K2 error codes Manual details & download

This page summarises what the manufacturer’s manual says about U74; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Panasonic. Found a mistake? Report an error.