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