JVC TH-A25 - Manual (Page 48)

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Troubleshooting
Use this chart to help you solve daily operational problems. If there is any problem you cannot solve, contact your JVC service center.
PROBLEM
Power does not come on.
The remote control does not work.
No sound.
Sound is emitted from only one speaker.
No video.
A disc cannot be played.
“WRONG DISC” appears on the display.
“NO DISC” appears on the display though a
disc is inserted.
Video and audio are distorted.
The edge is missing on the video image.
Continuous static during FM broadcasts.
The system does not work correctly.
POSSIBLE CAUSE
The power cord is not plugged in.
• It is too far from the center unit, or is not
facing the center unit.
• There is something obstructing the remote
sensor.
• The CONTROL TV button has been
pressed.
• The battery is flat.
• The battery has been inserted the wrong
way round (+/–).
• Sunlight is falling directly on the detector.
• There is a short in the speaker cord.
• The audio cord is not connected properly.
• An incorrect source has been selected.
• Muting is on.
• The speaker cord is not connected correctly.
• Left-right balance is incorrect.
• The video cord is not connected properly.
• TV input selection is incorrect.
• The system and disc region code numbers
are incompatible.
• The disc causes the parental (rating) error.
• An incompatible disc is loaded. (See page
19.)
• The disc is dirty.
• The disc is scratched.
• The disc is dirty.
• A VCR is connected between the center unit
and the TV.
• Initial setup (TV screen size) is incorrect.
• The received signal is too weak.
• The station is too far away.
• The antenna is not connected correctly.
• Lightning or electronic noise interferes with
operation of the microcomputer.
• Immediately after beginning to heat the
room, the unit was moved to a cold location
causing condensation to form inside.
SOLUTION
Insert the plug into the socket.
• Come close to the center unit.
• Avoid any obstacles.
• Press DVD, FM/AM, or AUX to operate
the system. (See page 42.)
• Replace the battery.
• Insert the battery correctly.
• Shade the remote control from direct
sunlight.
• Reconnect the speaker cord.
• Connect the cord properly. (See page 9.)
• Select the correct source.
(See pages 10 to 14.)
• Press MUTING to cancel muting.
• Connect the cord properly. (See page 7.)
• Adjust balance. (See page 15.)
• Connect the cord properly. (See page 8.)
• Select the correct input.
• Replace the disc. (See page 19.)
• Enter password to change the parental
(rating) level. (See page 40.)
• Replace the disc.
• Clean the disc.
• Replace the disc.
• Clean the disc.
• Connect the center unit and TV directly.
• Set TV screen size correctly.
(See page 37.)
• Connect an external FM antenna
(see page 5), or contact your dealer.
• Select another station.
• Check the connection. (See page 5.)
• Switch power off, and remove and re-insert
the power plug in the socket.
When the system is not restored with the
operation above, switch power off and press
and hold
7 on the main unit for 5 seconds.
The STANDBY lamp goes off for a moment
and the microcomputer is reset*.
* This operation erases all the stored
settings. Do not carry out this without
necessity.
• Switch power off and leave the unit a few
hours before switching power on again.
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