ViewSonic PJ520 User Manual - Page 40

Problem Diagnostics

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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 defect Items to be confirmed The main power source is not Turn on the main power. ON. Power does not come ON The electrical power cord is not plugged in. Correctly connect the power cord. points. The main power source has been interrupted during operation, such as by a power outage (blackout), etc. Be sure to press the "O" (power OFF) side of the main power switch, and leave this OFF for approximately 20 minutes. After the unit has sufficiently cooled down, turn ON the power source. No sound or pictures are outputted The input changeover settings Select the input signal, and correct the settings. are mismatched. The input changeover settings Correctly connect the connection cord. are mismatched. No signal is being inputted. Correctly connect the connection cord. Pictures are displayed, but no sounds are heard The electrical wiring to this Correctly connect the connection cord. unit is not correctly connected. The volume setting has been set at (or adjusted to) an extremely low level. Adjust the VOLUME setting to a higher level. MUTE is turned on. Press the MUTE button to toggle the MUTE mode setting.. The electrical wiring to this Correctly connect the connection cord. unit is not correctly connected. Sounds are heard, but no pictures are displayed The brightness setting has Adjust the BRIGHT setting to a brighter level. been set at (or adjusted to) an extremely low level. The lens cap has not been removed. Remove the lens cap. Colors have a faded- Color depth setting or color out appearance. tone setting Color tone is poor Perform picture adjustments by changing the COLOR BAL R, the COLOR BAL B, and/or the TINT settings, etc. The brightness setting and/or contrast setting has not been properly adjusted. Perform picture adjustments by changing the BRIGHT and/or CONTRAST settings, etc. Pictures appear dark The WHISPER mode is the current setting. Toggle from the WHISPER mode. Lamp is approaching the end Repalce the Lamp Assembly. of its product lifetime. Pictures appear blurry Either the FOCUS setting or the H PHASE is not properly adjusted. Adjust the FOCUS and H PHASE settings. 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. ViewSonic PJ650/PJ520 37

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Problem Diagnostics
Before requesting repair, please check the following chart. If the situation cannot be corrected, then contact
your dealer.
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.
Phenomenon
Cases not involving a
machine defect
Items to be confirmed
Power does not
come ON
The main power source is not
ON.
Turn on the main power.
The electrical power cord is
not plugged in.
Correctly connect the power cord. points.
The main power source has
been interrupted during opera-
tion, such as by a power out-
age (blackout), etc.
Be sure to press the “O” (power OFF) side of the main power
switch, and leave this OFF for approximately 20 minutes. After
the unit has sufficiently cooled down, turn ON the power
source.
No sound or pic-
tures are outputted
The input changeover settings
are mismatched.
Select the input signal, and correct the settings.
The input changeover settings
are mismatched.
Correctly connect the connection cord.
No signal is being inputted.
Correctly connect the connection cord.
Pictures are dis-
played, but no
sounds are heard
The electrical wiring to this
unit is not correctly connected.
Correctly connect the connection cord.
The volume setting has been
set at (or adjusted to) an
extremely low level.
Adjust the VOLUME setting to a higher level.
MUTE is turned on.
Press the MUTE button to toggle the MUTE mode setting..
Sounds are heard,
but no pictures are
displayed
The electrical wiring to this
unit is not correctly connected.
Correctly connect the connection cord.
The brightness setting has
been set at (or adjusted to) an
extremely low level.
Adjust the BRIGHT setting to a brighter level.
The lens cap has not been
removed.
Remove the lens cap.
Colors have a faded-
out appearance.
Color tone is poor
Color depth setting or color
tone setting
Perform picture adjustments by changing the COLOR BAL R,
the COLOR BAL B, and/or the TINT settings, etc.
Pictures appear dark
The brightness setting and/or
contrast setting has not been
properly adjusted.
Perform picture adjustments by changing the BRIGHT and/or
CONTRAST settings, etc.
The WHISPER mode is the
current setting.
Toggle from the WHISPER mode.
Lamp is approaching the end
of its product lifetime.
Repalce the Lamp Assembly.
Pictures appear
blurry
Either the FOCUS setting or
the H PHASE is not properly
adjusted.
Adjust the FOCUS and H PHASE settings.
ViewSonic
PJ650/PJ520
37