Read Panasonic CQ-C8401W / CQ-C7401W Service Manual online
General
Power Supply
DC 12V (11V - 16V),
Test Voltage 14.4V
Negative Ground
Tone Controls (Bass/Treble)
Bass: ±12dB at 60Hz
Treble: ±12dB at 16kHz
Treble: ±12dB at 16kHz
Equalizer Center Frequency
60, 160, 400, 1k, 3k, 6k, 16k (Hz)
Variable Range of Equalizer
-12dB to 12dB (2dB step)
Current Consumption
Less than 2.2A
(CD mode; 0.5W × 4-speaker)
(CD mode; 0.5W × 4-speaker)
Maximum Power Output
<CQ-C8401W>
60W × 4(at 4
Ω
)
<CQ-C7401W>
50W × 4(at 4
Ω
)
Speaker Impedance
4 - 8
Ω
Pre-amp Output Voltage
5V
Subwoofer Output Voltage
5V
Pre-amp Output Impedance
60
Ω
Subwoofer Output Impedance 60
Ω
CD Player
Sampling Frequency
8 Times Oversampling
Pick-up Type
Astigma 3-Beam
Light Source
Semiconductor Laser
Wave Length
790 nm
Frequency Response
20Hz-20kHz (±1dB)
CQ-C8401W
CQ-C7401W
CQ-C7401W
WMA MP3 CD Player/Receiver with Full
Dot Matrix Display
Dot Matrix Display
Signal to Noise Ratio
96dB
Total Harmonic Distortion
0.01% (1kHz)
Wow and Flutter
Below Measurable Limits
Channel Separation
75dB
FM Stereo Radio
Frequency Range
87.5MHz - 108MHz
Usable Sensitivity
6dB/µV (S/N 30dB)
Stereo Separation
35dB (at 1kHz)
AM Radio
Frequency Range
531kHz - 1,602kHz
Usable Sensitivity
28dB/µV (S/N 20dB)
Dimensions (W×H×D)**
178×50×155mm
Weight**
1.6Kg
* Specifications and the design are subject to possible modification
without notice due to improvements.
without notice due to improvements.
** Dimensions and Weight shown are approximate.
** Above specifications comply with EIA standards.
AUTOMOTIVE AFTERMARKET
Specifications*
ORDER NO. ACED050309C3
1
ABOUT LEAD FREE SOLDER (PbF)
3
2
FEATURES
3
3
REPLACEING THE FUSE
3
4
MAINTENANCE
3
5
NOTES
3
6
DIMENSIONS
3
7
LASER PRODUCTS
3
8
WIRING CONNECTION
4
9
BLOCK DIAGRAM
6
10 DISASSEMBLY INSTRUCTIONS
10
11 TERMINALS DESCRIPTION
13
12 IC BLOCK DIAGRAM
17
13 REPLACEMENT PARTS LIST
21
14 EXPLODED VIEW (Unit)
27
15 CD PLAYER PARTS LIST
28
16 EXPLODED VIEW (CD PLAYER)
31
17 WIRING DIAGRAM
32
18 SCHEMATIC DIAGRAM-1
38
19 SCHEMATIC DIAGRAM-2
39
CONTENTS
Page
Page
2
CQ-C8401W / CQ-C7401W
1 ABOUT LEAD FREE
SOLDER (PbF)
Distinction of PbF PCB:
PCBs (manufactured) using lead free solder will have a PbF
stamp on the PCB.
stamp on the PCB.
Caution :
•
•
•
•
Pb free solder has a higher melting point than standard
solder; Typically the melting point is 50 - 70°F (30 -
40°C)
solder; Typically the melting point is 50 - 70°F (30 -
40°C)
higher.
Please
use
a
soldering
iron
with
temperature control and adjust it to 700 ± 20°F (370 ±
10°C). In case of using high temperature soldering iron,
please be careful not to heat too long.
10°C). In case of using high temperature soldering iron,
please be careful not to heat too long.
•
•
•
•
Pb free solder will tend to splash when heated too high
(about 1100°F/600°C)
(about 1100°F/600°C)
•
•
•
•
This lead free solder will be used for the products after
serial No. 1,000,001.
serial No. 1,000,001.
2 FEATURES
•
•
•
•
MP3/WMA Playback from CD-R/RW
•
•
•
•
Fully Motorized Front Panel
•
•
•
•
Six Preset Modes (FLAT, ROCK, POP, VOCAL, JAZZ,
CLUB)
CLUB)
•
•
•
•
SQ7 (7 Bands Sound Quality)
•
•
•
•
DVD Changer Control
•
•
•
•
Delightful sound space thanks to system buildup
•
•
•
•
Differences Among 2 Models
3 REPLACEING THE FUSE
Use fuses of the same specified rating 15 amps. Using different
substitutes or fuses with higher ratings, or connecting the unit
directly without a fuse, could cause fire or damage to the stereo
unit.
substitutes or fuses with higher ratings, or connecting the unit
directly without a fuse, could cause fire or damage to the stereo
unit.
4 MAINTENANCE
Your products is designed and manufactured to ensure a
minimum of maintenance. Use a soft cloth for routine exterior
cleaning. Never use benzine, thinner or other solvent.
minimum of maintenance. Use a soft cloth for routine exterior
cleaning. Never use benzine, thinner or other solvent.
5 NOTES
[RADIO BLOCK]
Do not align the AM/FM package block. When the package
block is necessary, it will be supplied already aligned at the
factory.
block is necessary, it will be supplied already aligned at the
factory.
[CD DECK BLOCK]
This
model
has
no
servo
alignment
points
because
microcomputer controls the servo circuit
6 DIMENSIONS
7 LASER PRODUCTS
3
CQ-C8401W / CQ-C7401W
8 WIRING CONNECTION
8.1. CQ-C8401W
4
CQ-C8401W / CQ-C7401W