Troubleshooting - JVC TH-A30 Instructions Manual

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.
No picture is displayed on the TV screen, the
picture is blurred, or the picture is divided
into two parts.
A disc cannot be played.
"WRONG DISC FORMAT" appears on the
TV screen.
Pictures and sounds are distorted.
Pictures are distorted when progressive mode
is selected.
The edge is missing on the picture image.
Continuous static during FM broadcasts.
The system does not work correctly.
The VCR cannot be operated using this
remote control.
57
POSSIBLE CAUSE
The power cord is not connected correctly.
• It is too far from the center unit, or is not
facing the center unit.
• There is something obstructing the remote
sensor.
• The VCR CONTROL 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 disc is copy–protected CD.
• 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 color system of the disc does not match
the system.
• The scanning mode is set to "P–SCAN
MODE" though the system is connected to
the TV which does not support the
progressive video input such as a
conventional TV.
• The system and disc region code numbers
are incompatible.
• The disc causes the parental (rating) error.
• The CD–R/CD–RW does not contain any
MP3 files.
• The disc is dirty.
• A VCR is connected between the center unit
and the TV.
• "Progressive Mode " may not be set
appropriately for the current disc.
• Initial setup (TV screen size) was 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 heating the room, the unit
was moved to a cold location causing
condensation to form inside.
• The remote control is not set for VCR
operations.
• The VCR is not a JVC's product.
SOLUTION
Insert the plug into the socket.
• Come close to the center unit.
• Avoid any obstacles.
• Press DVD or FM/AM to operate the
system. (See page 54.)
• 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 11 to 16.)
• Press MUTING to cancel muting.
• Replace the disc.
• Connect the cord properly. (See page 8.)
• Adjust balance. (See pages 22 to 26.)
• Connect the cord properly. (See page 10.)
• Select the correct input.
• Change the color system, or replace the
disc.(See page 17.)
• Change the scanning mode to "I–SCAN
MODE." (See page 17.)
• Replace the disc. (See page 27.)
• Enter password to change the parental
(rating) level. (See page 52.)
• Replace the disc.
• Clean the disc.
• Connect the center unit and TV directly.
• Change "Progressive Mode"
(See page 16.)
• Set TV screen size correctly.
(See pages 50 and 51.)
• Connect an external FM antenna
(see page 6), or contact your dealer.
• Select another station.
• Check the connection. (See page 6.)
• Switch power off, and remove and re-insert
the power plug in the socket.
• Turn off the power, plug off and leave the
unit a few hours before switching power on
again.
• Press VCR CONTROL to operate the VCR.
(See page 54.)
• This remote control can operate a JVC's
VCR whose remote control code is set to A
code.