Panasonic CQ-R253U, Operating Instructions Manual

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CQ-R253U
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Troubleshooting
(continued)
CQ-R253U
20
Trouble
No sound.
Blank tape is inserted in the unit.
➡ Insert recorded tape into the unit.
Tape sound quality is
poor.
Heads are dirty.
➡
Clean heads. (Ask a service representative for advice.)
Poor quality tape.
➡ Use better quality tape.
High tones are
improperly emphasized.
Dolby B NR tape plays with Dolby B NR off.
➡ Set Dolby B NR to ON.
Metal type tape plays with normal mode.
➡
Change Normal mode to Metal mode.
Reproduction of high
tones is poor.
Non-Dolby B NR tape plays with Dolby B NR on.
➡
Set Dolby B NR to OFF.
Normal type tape plays with Metal mode.
➡ Change Metal mode to Normal mode.
Heads are magnetized.
➡
Demagnetize heads. (Ask a service representative for advice.)
Wow and flutter level is
very high.
Tape running mechanism is dirty or out of order.
➡
Clean tape running mechanism, or repair it. (Ask a service
representative for advice.)
Cause/Step
❐
Cassette Tape
Trouble
No sound from left,
right, front, or rear
speakers.
Left and right balance, or front and rear balance is off on one side.
➡
Adjust balance/fader setting as appropriate.
Cables are not correctly connected.
➡ Connect the cables correctly.
The right speaker wire is connected to the left speaker and the left speaker
wire to the right speaker.
➡
Connect the speaker wires to the correct one.
Left and right sounds are
reversed in stereo
listening.
Cause/Step
❐
Sound Setting
Trouble
Buttons are invalid for
operation.
Battery poles (+) (–) are reversed.
➡ Insert the battery correctly.
Wrong battery.
➡
Check the battery.
Battery has run down.
➡
Replace the battery.
Remote control is in the wrong direction.
➡ Direct the remote control at sensor (REMOTE) on the panel.
Cause/Step
❐
Remote Control Unit
Speaker Connections
Caution: Please follow the instructions given below. Failure to do so will cause damage to the unit and speakers.
L
R
-
-
-
-
-
-
-
-
- -
+
+
+
+
+
+
+
+
+
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
L
R
L
R
L
R
<Right>
<Wrong>
(White)
(White
w/black stripe)
Chassis
(Gray
w/black stripe)
(Gray)
Chassis
• Use ungrounded speaker only.
• The maximum speaker input should be 50 W or more. (If used with the optional
power amplifier, the speaker input should be higher than the maximum amplifier
output.)
• The speaker impedance should be 4 - 8
Ω
.
• This unit uses the BTCL circuit, so each speaker should be connected separately
using parallel vinyl insulated cords.
• The speaker cords and the power amplifier unit should be kept away (about 30 cm
apart) from the antenna and antenna extension cord.
• Never connect the speaker cord to
the body of the car.
• Do not use a 3-wire type speaker
system having a common earth
lead.
• Do not connect more than one
speaker to one set of speaker
leads.
Fuse
Use fuses of the same specified rating (15 A). Using different substitutes or fuses with higher ratings, or connecting the
unit directly without a fuse, could cause fire or damage to the unit.
If the fuse replacement fails, contact your nearest authorized Panasonic Service Center.
Product Servicing
If the suggestions in the charts do not solve the problem, we recommend that you take it to your nearest authorized
Panasonic Servicenter. The product should be serviced only by a qualified technician.
Maintenance
Your product is designed and manufactured to ensure the minimum of maintenance. Use a soft cloth for routine
exterior cleaning. Never use benzine, thinner, or other solvents.