JVC 330 Service Manual page 149

Problem and
Symptom to
Check
LEDs 200, 300, or
400 on the
vertical
deflection are
unlit.
LEDs 200 and 201,
or 300 and 301,
or 400 and 401
on the vertical
deflection are
unlit.
Increasing G2
voltages
decreases
brightness level
for all CRTs.
Arc Lamp
Arc lamp will not
light-'clicking'
sound audible
when projector is
commanded ON.
'Clicking' sound not
audible when
projector is
commanded ON.
Arc Lamp ignites
but will not stay
lit.
Brightness flicker or
Picture very
dim.
5-9
Possible Solution
Replace Vertical Deflection Board.
Replace Horizontal Deflection
Board
if any two (2) are unlit.
Faulty High Voltage Power Supply
under full load. Replace High
Voltage power Supply.
Replace worn out Arc Lamp.
System Power Supply or Ignitor
Assembly
faulty. Replace SPS or Ignitor
Assembly.
Replace defective Ignitor
Assembly.
Arc Lamp may have too many
hours.
Replace Arc Lamp.
Model 330, 340SC, and 370SC Service Manual
Chapter 5---Troubleshooting
Service Operator
Manual Manual
4.11
4.11
4.10
4.4
4.5
4.4
4.4