JVC 250 User Manual

Table 7-3 lists some common projector problems, what to check when problems
occur, and offers possible solutions. It indicates the section in this Service Manual
that provides some related information on the problem. If the User’s Guide
contains pertinent information, the appropriate section will be given.

Troubleshooting Guide

Problem

Check

Possible Solution

Section

No Power

Main Circuit Breaker on
Projector rear panel.

Reset Circuit Breaker.

Section 3.2

Main Circuit Breaker
fails when reset.

Verify input power is

correct. Replace defective
Low Voltage Power
Supply or Arc Lamp
Power Supply.

Section 3.2

Projector cover not
enabling interlock
switch?

Reposition projector

cover.

Section 6.1

No Picture

Correct channel input &
VIC selected?

Select correct channel

and VIC.

User’s Guide
section 4.6

Arc Lamp turned off.

Restart projector.

User’s Guide 4.3.

System power turned off.

Restart projector.

User’s Guide 4.3.

Signal source

Verify signal source is
turned on and properly
connected.

User’s Guide 3.5.

HIDE command
invoked?

Unhide image with the
HIDE key on the remote.

One color is missing.

Turn on the missing color

with the HIDE key.

No image or raster on
one CRT.

Replace defective CRT or
Video Amplifier Board.

Section 6.9, 6.10

Arc Lamp

Arc Lamp will not light.
Clicking noise is heard
when projector is turned
on.

Replace worn out Arc
Lamp.

Section 4.1

Clicking noise not
audible when projector is
turned on.

LVPS, ALPS, or Ignitor

faulty. Replace LVPS,
ALPS, or Ignitor.

Section 3.3, 3.4

Arc Lamp ignites but will
not stay lit.

Replace defective Ignitor.

Section 3.4