General Problems - Pioneer PDP-4304 Operating Instructions Manual

General problems

Problem
• No power.
• Unit cannot be operated.
• Remote control does not
operate.
• Picture is cut off.
• Strange color, light color, or
dark, or color misalignment.
• Power is suddenly turned off.
• No picture.
Problems commonly mistaken as breakdown
Problem
• The screen is displayed in a
small size.
• Letter breakup on screen.
• A sharp sound is sometimes
heard from the cabinet.
• Bright portions of image
appear to be losing intensity.
• Speckles or noise appears on
screen.
• Stripes appear on the screen.
• Sound is heard from inside
the unit.
• Fan isn't moving.
• Fan speed changes.
• Is the power cord disconnected? (page 18)
• Has the MAIN POWER switch been switched on? (page 9)
• External influences such as lightning, static electricity, etc., may cause improper operation. In this
case, operate the unit after first turning the MAIN POWER off/on, or unplugging the power cord
and re-plugging it in after 1 to 2 minutes.
• Are batteries inserted with polarity (+, –) correctly aligned? (page 8)
• Are batteries worn out? (Replace with new batteries.)
• Is any object occluding the remote signal receiver? (page 8)
• Point the remote control unit toward the remote signal receiver when operating (page 8).
• Is the selected screen size correct?
Switch to another screen size (page 27).
• Are [SCREEN] mode adjustments such as picture position made correctly? (pages 27 to 28 and 33
to 35)
• Adjust the picture tone (page 31).
• Is the room too bright?
The picture may look dark in a room that is too bright.
• Is [CLAMP POSITION] setup correct? (page 22)
• Is the [HDMI INPUT] setting appropriate? (Only during HDMI input) (pages 23 to 24).
• The unit's internal temperature has increased (Air vents are blocked).
Remove any objects blocking vent or clean (page 42).
• Is the [POWER MANAGEMENT] function set to [ON]? (page 38)
• Is connection to other components correct? (pages 13 to 15)
• Has setup been done correctly after connection? (pages 21 to 24)
• Is the correct input selected? (page 25)
• Is a non-compatible signal being input? (pages 46 to 48)
• Is the [PICTURE] setting correct? (page 31)
• Is the correct screen size selected? (pages 27 to 28 and 33)
• Adjust using [SCREEN] mode on the menu screen (page 33).
If there is still no improvement, this unit may be limiting the displayable range. Check the
Computer signal compatibility table (pages 47 to 48).
• Expansion/contraction caused by surrounding temperature change may result in sound being
heard from the cabinet. This is not a malfunction.
• When the video input signal's level is too high, the bright portions may appear to be losing their
intensity.
Increase the adjustment level of the contrast and check the picture (page 31).
• May be caused by radio wave interference from appliances with motors such as hair dryers,
electric vacuum cleaners, electric power drills, ignition systems of cars, motorcycles etc., switch
devises such as thermostats etc., neon signs or electrical discharge from power lines etc.
• May be caused by radio wave mingling from TV station, FM station, amateur radios, public radios
(simplified radios) etc., or a nearby personal computer, TV, or video/audio component.
• A strong electromagnetic field may cause picture distortion and similar problems.
• Normal sound of the cooling fan and internal sliding parts of the plasma display panel. Not a
malfunction.
• Fan is set to operate only after ambient temperature exceeds 35˚C (95˚F) (differs depending on
installation conditions). Not a malfunction.
• Fan speed changes automatically in accordance with ambient conditions. Not a malfunction.
Additional Information
Possible Solution
Possible Solution
43
EN