Troubleshooting - JVC HR-VP78U Instructions Manual

50
EN
Before requesting service, use this chart and see if you can repair the trouble yourself. Small problems are often easily
corrected, and this can save you the trouble of sending your VCR off for repair.
POWER
SYMPTOM
1. The power will not come on.
2. The clock works, but the VCR's
power will not come on.
3. The Remote will not function.
TAPE TRANSPORT
SYMPTOM
1. The cassette gets stuck partway
during loading, and is ejected.
PLAYBACK
SYMPTOM
1. The tape is running but the picture
will not appear.
2. Breaks are noticeable in Hi-Fi
sound track.
3. The playback picture is blurred or
interrupted, even though TV
broadcasts are clear.
4. The Hi-Fi sound cannot be heard.
RECORDING
SYMPTOM
1. Recording will not start.
2. TV broadcasts will not be recorded
properly.
3. Tape-to-tape editing will not work.
POSSIBLE CAUSE
The AC power cord is disconnected.
The VCR is in the timer recording
standby mode with "AUTO TIMER"
set to "OFF" ( pg. 38, 39).
The child lock function is activated.
The batteries are discharged.
POSSIBLE CAUSE
The cassette was inserted incorrectly.
POSSIBLE CAUSE
If the RF connection ( pg. 7) is
used to view the picture, the
channel on the TV is set incorrectly.
If the AV connection ( pg. 7) is
used to view the picture, the TV
receiver is set to the wrong mode.
Automatic tracking is engaged.
The video heads may be dirty.
Audio Monitor setting is incorrect.
POSSIBLE CAUSE
There is no cassette loaded.
The loaded cassette has had its
record safety tab removed.
The VCR has been set to "L-1" or "F-
1" input mode by mistake.
The VCRs or the camcorder and the
VCR have been incorrectly
connected.
The power to one or more of the
units has not been turned on.
The recording VCR's input mode has
been set incorrectly.

TROUBLESHOOTING

CORRECTIVE ACTION
Connect the AC power cord.
Press TIMER to disengage.
Press and hold POWER for more than
seven seconds to release the child
lock function ( pg. 42).
Replace the dead batteries with new
ones.
CORRECTIVE ACTION
Make sure the cassette's window is
facing up, the rear label side is facing
you and the arrow on the front of the
cassette is pointing towards the VCR.
Then insert the cassette.
CORRECTIVE ACTION
Select channel 3 or 4 on the TV.
Select the AV mode on the TV.
Disengage auto tracking and adjust
the tracking manually (
The heads must be cleaned. Consult
your JVC dealer.
Set Audio Monitor to "HI-FI"
( pg. 23 or 41).
CORRECTIVE ACTION
Insert a cassette.
Remove the cassette and cover the
hole with adhesive tape, or load a
cassette on which the record safety
tab is intact.
Select the appropriate channel on the
VCR.
Refer to the directions and the
illustration under "Edit To Or From
Another VCR" ( pg. 43) or "Edit
From Camcorder" ( pg. 44) and
properly connect the units.
Make sure the power to all units is on.
Select the appropriate input mode on
the recording VCR.
pg. 23).