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Specifications
CQ-R253U
29
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CQ-R253U
28
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol
A
are trademarks of Dolby Laboratories Licensing Corporation.
❏
General
Power Supply:
12 V DC (11 V – 16 V) Test Voltage 14.4 V, Negative ground
Maximum Power Output:
50 W
×
4 channels at 400 Hz, Volume Control maximum
Tone adjustment range:
Bass:
± 12 dB at 100 Hz
Treble:
± 12 dB at 10 kHz
Current Consumption:
Less than 2 A (tape mode, 0.5 W
×
4 chanels)
Pre-Amp Output Voltage:
2.0 V (CD Play mode; 1kHz, 0 dB)
Suitable speaker impedance:
4 - 8
Ω
Dimensions (W
×
H
×
D): 7"
×
1-15/16"
×
6-1/10" (178
×
50
×
155 mm)
Weight:
3 lbs. 1 oz (1.4 k
g
)
❏
AM Radio
Frequency Range:
530 – 1 710 kHz
Useable Sensitivity:
28 dBµV (25 µV, S/N 20 dB)
❏
FM Stereo Radio
Frequency Range:
87.9 - 107.9 MHz
Useable Sensitivity:
13.2 dBf. (1.25 µV, 75
Ω
)
50 dB Quieting Sensitivity:
15.2 dBf. (1.6 µV, 75
Ω
)
Frequency Response:
30 - 15 000 Hz (±3 dB)
Capture Ratio:
1.5 dB
Alternate Channel Selectivity:
75 dB
Stereo Separation:
35 dB (1 kHz)
Image Response Ratio:
65 dB
IF Response Ratio:
100 dB
Signal/Noise Ratio:
70 dB
❏
Tape Player
Reproduction System:
4-track, 2-program stereo
Tape Speed:
1-7/8"/sec (4.76 cm/sec)
FF/REW Time:
Less than 110 sec (C-60)
Frequency Response:
35 - 14 000 Hz ±3 dB (normal)
35 - 17 000 Hz ±3 dB (metal)
Wow and Flutter:
0.12 % (WRMS)
Signal/Noise Ratio:
52 dB (Dolby B NR OFF)
62 dB (Dolby B NR ON)
Note: Specifications and design are subject to modification without notice due to improvements in technology.
Electrical Connections
Cautions:
• To prevent damage to the unit, be sure to follow the connection diagram below.
• Remove the covering of the leads about 5 mm long from their end before connecting.
• Do not insert the power connector into the unit until the wiring is completed.
• Be sure to insulate any exposed wires from a possible short-circuit from the car chassis. Bundle all cables and
keep cable terminals free from touching any metal parts.
CQ-R253U
Antenna
PREAMP OUT CONNECTOR (Rear)
CD Changer
Control Connector
L(White)
R(Red)
CD•C IN
Fuse(3A)
Extension Cord
Supplied for an optional CD changer
(DIN/BATT/RCA/GND)
Ground Lead
To a clean, bare metallic
part of your car
To the car battery, continuous
+12V DC
Battery Lead
RCA Cord
DIN Cord
(White)
(Red)
(R)
(L)
CD Changer
CX-DP880U
(option)
BATTERY
Fuse (15 A)
If the fuse (rear panel) blows
frequently, they may be
something wrong with the unit.
Consult your nearest Panasonic
Service Centre for servica.
Blue/white stripe
Front speaker lead
White
White/black stripe
Gray
Gray/black stripe
Green
Green/black stripe
Violet
Violet/black stripe
Left
Front
Rear
Right
Right
Left
Rear speaker lead
Blue
Black
Yellow
Red
External Amplitier
Control Power Lead
To an external amplitier
Note: This lead is used for power
control when an external power
amplifier is connected. The power
supply of a power amplifier will be
activated when turning on
the power of this unit.
Not Used
Ground lead
(To a clean, bare metallic
part of the car chassis.)
Battery lead
(To the car battery,
cont12 V DC)
ACC power lead
(To ACC power, +12 V DC)
FRONT SP
BATTERY 15A
ACC
REAR SP
Power
Connector
Preparation:
• This unit can be connected to an optional CD changer (CX-DP880U). For details consult your nearest panasonic
servicenter.
• For connection to a CD changer, refer to the operating instructions of the CD Changer (CX-DP880U).
❐
Schéma de câblage
Содержание CQ-R253U
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