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 | Items to be confirmed | |
| machine defect |
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| The main power source is not | Turn on the main power. | |
| ON. |
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Power does not | The electrical power cord is | Correctly connect the power cord. points. | |
not plugged in. |
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come ON |
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The main power source has | Be sure to press the “O” (power OFF) side of the main power | ||
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| been interrupted during opera- | switch, and leave this OFF for approximately 20 minutes. After | |
| tion, such as by a power out- | the unit has sufficiently cooled down, turn ON the power | |
| age (blackout), etc. | source. | |
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| The input changeover settings | Select the input signal, and correct the settings. | |
No sound or pic- | are mismatched. |
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The input changeover settings | Correctly connect the connection cord. | ||
tures are outputted | |||
are mismatched. |
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| No signal is being inputted. | Correctly connect the connection cord. | |
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| The electrical wiring to this | Correctly connect the connection cord. | |
Pictures are dis- | unit is not correctly connected. |
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The volume setting has been | Adjust the VOLUME setting to a higher level. | ||
played, but no | |||
set at (or adjusted to) an |
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sounds are heard |
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extremely low level. |
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| MUTE is turned on. | Press the MUTE button to toggle the MUTE mode setting.. | |
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| The electrical wiring to this | Correctly connect the connection cord. | |
| unit is not correctly connected. |
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Sounds are heard, |
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The brightness setting has | Adjust the BRIGHT setting to a brighter level. | ||
but no pictures are | been set at (or adjusted to) an |
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displayed | extremely low level. |
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| The lens cap has not been | Remove the lens cap. | |
| removed. |
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Colors have a faded- | Color depth setting or color | Perform picture adjustments by changing the COLOR BAL R, | |
out appearance. | tone setting | the COLOR BAL B, and/or the TINT settings, etc. | |
Color tone is poor |
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| The brightness setting and/or | Perform picture adjustments by changing the BRIGHT and/or | |
| contrast setting has not been | CONTRAST settings, etc. | |
| properly adjusted. |
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Pictures appear dark |
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The WHISPER mode is the | Toggle from the WHISPER mode. | ||
| current setting. |
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| Lamp is approaching the end | Repalce the Lamp Assembly. | |
| of its product lifetime. |
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Pictures appear | Either the FOCUS setting or | Adjust the FOCUS and H PHASE settings. | |
the H PHASE is not properly |
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blurry |
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adjusted. |
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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.
37 ViewSonic PJ650
