Problem Diagnostics
Before requesting repair, please check the following chart. If the situation cannot be corrected, then contact your dealer.
Phenomenon | Cases not involving a machine | Items to be confirmed |
| defect |
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The power does not | The main power source is not ON. | Turn on the main power. |
come ON. |
|
|
The electrical power cord is not | Correctly connect the power cord. | |
| plugged in. |
|
|
|
|
| The main power source has been | Be sure to press the “O” (power OFF) sideof |
| interrupted during operation, such as | the main power switch, and leave it OFF for |
| by a power outage (blackout), etc. | approximately 20 minutes. After the unit |
|
| has sufficiently cooled, turn ON the power |
|
| source. |
|
|
|
No sound or | The input changeover settings are | Select the input signal then correct the set- |
pictures are | mismatched. | tings. |
|
| |
displayed | The input changeover settings are | Correctly |
mismatched. |
| |
|
| |
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|
|
| No signal is being inputted. | Correctly |
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|
|
Pictures are | The electrical wiring to this unit is not | Correctly |
displayed, but no | correctly connected.. |
|
|
| |
sounds are heard | The volume setting has been set at | Adjust the VOLUME setting to a higher |
(or adjusted to) an extremely low | level. | |
| level. |
|
|
|
|
| Mute is turned on. | Press the MUTE button to toggle the MUTE |
|
| mode setting. |
|
|
|
Sounds are heard, | The electrical wiring to this unit is not | Correctly |
but no pictures are | correctly connected. |
|
displayed |
|
|
The brightness setting has been set | Adjust the BRIGHT setting to a brighter | |
| at (or adjusted to) an extremely low | level. |
| level. |
|
|
|
|
| The lens cap has not been removed. | Remove the lens cap. |
|
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|
Colors have a faded- | Color depth setting or color tone set- | Perform picture adjustments by changing |
out appearance. | ting | the COLOR BAL R, the COLOR BAL B, |
Color tone is poor |
| and/or the TINT settings, etc. |
|
| |
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|
Pictures appear dark | The brightness setting and/or con- | Perform picture adjustments by changing |
| trast setting has not been properly | the BRIGHT and/or CONTRAST settings, |
| adjusted. | etc. |
|
|
|
| The WHISPER mode is the current | Toggle from the WHISPER mode. |
| setting. |
|
|
|
|
| Lamp is approaching the end of its | Replace the Lamp Assembly. |
| product lifetime. |
|
|
|
|
Pictures appear | Either the FOCUS setting or the H | Adjust the focus and H PHASE settings. |
blurry | PHASE is not properly adjusted. |
|
NOTE:
When the interior becomes overheated, power to the unit automatically shuts down. Press the main switch on the side of the unit to the off position then wait 20 minutes to allow the unit to cool down before any work is done to the unit.
34 ViewSonic PJ751
