Sony SRXT420 User Manual (SRX-T420 user manual) - Page 68

Troubleshooting

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Troubleshooting If the projector appears to be operating erratically, try to diagnose and correct the problem using the following guide. If the problem still persists, consult your Sony dealer. Power Symptom Power is not turned on. Cause The main power is turned off. The projector and a computer for controlling the projector are disconnected. The ventilation duct for a lamp is disconnected. Remedy Set the power switch at the rear of the projector to the upper position (page 58). Connect the projector and a computer properly (page 53). Consult your Sony dealer. Picture Symptom No picture. Cause Cables are disconnected. Input selection is not correct. The picture is cut off. Ambient temperature is high. Color balance is incorrect. Incorrect input source mode is selected. The picture is too dark. A line appears in the center of a projected 4K image. Contrast and brightness has not been adjusted properly. Lamp power output is not properly selected. The input signal is not suitable to be projected as a 4K image. Remedy Check that the proper connection has been made (page 56). Note For connections to the projector, contact your Sony dealer. Check that the INPUT SELECT radio button in the SCREEN CONTROL window is selected correctly (page 59). Click the "OFF" button of "MUTING" in the SCREEN CONTROL window (page 59). Reduce the room temperature so that it becomes within the operating temperature (5°C to 35°C). Set "Signal Mode" of "Input Source" in the PICTURE CONTROL window correctly (page 62). Adjust the "Contrast" or "Brightness" in the PICTURE CONTROL window (page 62). Set "LAMP POWER" in the INSTALLATION window correctly (page 65). Check that the signal can be projected as a 4K image (page 60). SRX Controller Symptom The "Control Function Menu" window does not appear. Cause The projector and a computer for controlling the projector are disconnected. Remedy Check that the proper connection between the projector and a computer has been made (page 53). Chapter 5 Others 68 Troubleshooting

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68
Troubleshooting
Chapter 5
Others
Troubleshooting
If the projector appears to be operating erratically, try to diagnose and correct the problem using the following guide. If
the problem still persists, consult your Sony dealer.
Power
Picture
SRX Controller
Symptom
Cause
Remedy
Power is not turned on.
The main power is turned off.
Set the power switch at the rear of the projector to the upper
position (page 58).
The projector and a computer for
controlling the projector are disconnected.
Connect the projector and a computer properly (page 53).
The ventilation duct for a lamp is
disconnected.
Consult your Sony dealer.
Symptom
Cause
Remedy
No picture.
Cables are disconnected.
Check that the proper connection has been made (page 56).
For connections to the projector, contact your Sony dealer.
Input selection is not correct.
Check that the INPUT SELECT radio button in the SCREEN
CONTROL window is selected correctly (page 59).
The picture is cut off.
Click the “OFF” button of “MUTING” in the SCREEN
CONTROL window (page 59).
Ambient temperature is high.
Reduce the room temperature so that it becomes within the
operating temperature (5°C to 35°C).
Color balance is incorrect.
Incorrect input source mode is selected.
Set “Signal Mode” of “Input Source” in the PICTURE CONTROL
window correctly (page 62).
The picture is too dark.
Contrast and brightness has not been
adjusted properly.
Adjust the “Contrast” or “Brightness” in the PICTURE
CONTROL window (page 62).
Lamp power output is not properly
selected.
Set “LAMP POWER” in the INSTALLATION window correctly
(page 65).
A line appears in the
center of a projected 4K
image.
The input signal is not suitable to be
projected as a 4K image.
Check that the signal can be projected as a 4K image (page 60).
Symptom
Cause
Remedy
The “Control Function
Menu” window does not
appear.
The projector and a computer for
controlling the projector are disconnected.
Check that the proper connection between the projector and a
computer has been made (page 53).
Note