Panasonic CQ-C7703N User manual

ORDER NO. ACED060105C8
AUTOMOTIVE AFTERMARKET
CQ-C7703N / CQ-C7303N
WMA MP3 CD Player/Receiver
SPECIFICATIONS
Specifications*
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
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)
Maximum Power Output 70W × 4 (CQ-C7703N, at 1kHz)
Maximum Power Output 50W × 4 (CQ-C7303N, at 1kHz)
Power Output 40W × 4 (CQ-C7703N, DIN 45 324, at
4 )
Power Output 23W × 4 (CQ-C7303N, DIN 45 324, at
4 )
Speaker Impedance 4 - 8
Pre-amp Output Voltage 2.5V (CD mode; 1kHz, 0dB)
Subwoofer Output Voltage 2.5V (CD mode; 1kHz, 0dB)
Pre-amp Output Impedance 200
Subwoofer Output
Impedance
200
FM Stereo Radio
Frequency Range 87.5MHz - 108MHz
1

Usable Sensitivity 6 dB/ V (S/N 30dB)
Stereo Separation 35dB (at 1kHz)
AM (MW) Radio
Frequency Range 531kHz - 1,602kHz
Usable Sensitivity 28dB/ V (S/N 20dB)
AM (LW) Radio
Frequency Range 153kHz - 279kHz
Usable Sensitivity 32dB/ V (S/N 20dB)
CD Player
Sampling Frequency 8 Times Oversampling
DA Converter 4 DAC System
Pick-up Type Astigma 3-Beam
Light Source Semiconductor Laser
Wave Length 790 nm
Frequency Response 20 Hz-20kHz (±1dB)
Signal to Noise Ratio 96dB
Total Harmonic Distortion 0.01% (1kHz)
Wow and Flutter Below Measurable Limits
Channel Separation 85dB
Dimensions (W×H×D)** 178×50×155mm
Weight** 1.7 kg (CQ-C7703N)
1.6 kg (CQ-C7303N)
* Specifications and the design are subject to possible
modification without notice due to improvements.
** Dimensions and Weight shown are approximate.
** Above specifications comply with EIA standards.
2006 Matsushita Electric Industrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation of law.
1. ABOUT LEAD FREE SOLDER (PbF)
Distinction of PbF PCB:
PCBs (manufactured) using lead free solder will have a PbF stamp on the PCB.
Caution :
2

- Pb free solder has a higher melting point than standard 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.
- Pb free solder will tend to splash when heated too high (about 1100°F/
600°C)
- This lead free solder will be used for the products after serial No.
1,000,001.
2. FEATUERS
- Hands Free Phone System. (The optional Bluetooth hands-free kit: CY-
BT100N)
- Expansion Module (The optional Hub unit: CY-EM100N)
- The optional adapter allows you to connect the optional Panasonic DVD
changer unit (CX-DH801N).
- The optional adapter allows you to connect the optional Panasonic CD
changer unit (CX-DP880).
- The optional adapter allows you to connect the optional iPod series.
- SQ (Sound Quality).
- SQ7 (7-Band Sound Quality).
- Customize the Display (Customize Function)
- MP3/WMA Playback from CD-R/RW.
- This manual is for 2 models CQ-C7703N and CQ-C7703N. The following
table describes the differences between 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.
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.
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.
[CD DECK BLOCK]
3

This model has no servo alignment points because microcomputer controls the servo circuit
6. DIMENSIONS
7. LASER PRODUCTS
8. WIRING CONNECTION
8.1. CQ-C7703N
4

8.2. CQ-C7303N
5

9. DISASSEMBLY INSTRUCTIONS
9.1. How to Remove the Flexible PCB(AP2)
6

9.2. How to Install the Main P.C.B. of the Electric Display
10. TERMINALS DESCRIPTION
10.1. Main Block [CQ-C7703N]
IC601 : C2CBKG000037
7

Pin
No.
Port Description I/O (V)
FM AM CD
1 PANEL
OPEN
Panel open
detection
I 0 5.2 5.2
2 PANEL
CLOSE
Panel close
detection
I 0 0 5.2
3 SUBM
CNT
3.3V power control
for Display
O 5.0 - -
4 BATT Battery power
check
I 4.8 5.0 5.0
5 ACC Acc. power check I 4.8 5.0 5.0
6 SDA Serial data for
electronic volume
I/O 4.9 4.9 4.9
7 SCLK Serial clock for
electronic volume
O 4.9 4.9 4.9
8 CD MUTE Signal mute from
CD deck
I 5.0 5.0 5.0
9 Vss GND - 0 0 0
10 ST FM stereo detection I 5.1 5.2 5.2
11 PLL DI Serial data to PLL O 0.6 0 0
12 PLL DO Serial data from PLL I 5.2 5.2 5.2
13 PLL CLK Serial clock for PLL O 4.9 4.9 4.9
14 PLL CE Chip enable for PLL O 0 0 0
15 CD
RESET
Reset for CD deck O 4.9 4.9 4.9
16 SUB SI Serial data to
Display CPU
O 0.6 0.6 0.8
17 CD IN Disc-in detection I 5.0 5.0 5.0
18 SUB SO Serial data from
Display CPU
I 4.4 4.4 4.4
19 CH DATA XM SO/UP SO
Serial data from
Changer
I 1.6 1.6 1.6
20 CH CLK Serial clock for
Changer or Flash
writer
I 4.9 4.9 4.9
21 Vdd +5V power supply - 4.9 4.9 4.9
22 UP SI Serial data to
Satellite or Flash
writer
O 0 0 0
23 CD SI Serial data to CD
deck
O 0 0 0
24 CD SCLK Serial clock for CD
deck
I/O 0 0.4 0
25 CONDENSOR Capacitor
connection for
power
- 3.3 3.3 3.3
26 CD SO Serial data from CD
deck
I 0 0 0
Pin
No.
Port Description I/O (V)
FM AM CD
27 CH STB Strobe from
Changer
I 0 0 0
28 CH REM
OUT
Remote control
codes to Changer
O 4.9 4.9 0.4
29 DECK V
CONT
Power control for
CD deck
O 4.9 4.9 4.9
30 REMO INT Interrupt for remote
control
I 3.7 3.7 3.7
31 CD FS Frame sync. for CD
deck
O - - -
32 Avdd +5V power supply - 5.1 5.1 5.1
33 AVREF +5V power supply - 5.1 5.1 5.1
34 AVGND GND - 0 0 0
35 AVSS GND - 0 0 0
36 SD FM/AM signal level
meter
I 0.2 0 0.3
37 INIT A Model setting A by
voltage level
I 0 0 0
38 INIT B Model setting B by
voltage level
I 0 0 0
39 A IN Spectrum analyzer
data
I 0 0 0
40 Vss GND - 0 0 0
41 SYS ID1 Hub connection
device detection ID
1
I 0 0 0
42 SYS ID2 Hub connection
device detection ID
2
I 5.2 5.2 5.2
43 HUB
EVENT
Bluetooth incoming
detection
I 5.2 5.2 5.2
44 HUB CNT Request of hub
connection check
O 0 0 0
45 CD SW1 Disc detection
switch 1
I 0 0 0
46 CD SW2 Disc detection
switch 2
I 0 0 0
47 MOD0 Operating mode
control 0 from
Flash writer
I 5.1 5.1 5.1
48 MOD1 Operating mode
control 1: pulled up
to H
- 5.1 5.1 5.1
49 MOD2 Operating mode
control 2 from
Flash writer
I 0 0 0
50 H
STANDBY
Standby control
from external
I 5.0 5.0 5.0
8

Pin
No.
Port Description I/O (V)
FM AM CD
51 DCDC
CONT
Not connected - - - -
52 FP
MOTOR1
Open/Close of
Front panel 1
O 4.9 5.0 4.9
53 FP
MOTOR2
Open/Close of
Front panel 2
O 4.9 5.0 4.9
54 V CONT1 Reference voltage
control for motor
driver
O 0 0 5.0
55 REMO 1 Remote control data I 5.0 5.0 5.0
56 SA CLK Spectrum analyzer
clock
O 5.0 5.0 4.9
57 EXT
MUTE
Pulled up to H I 5.3 5.2 5.2
58 AMP
CONT
Power control for
external Amplifier
O 4.9 5.0 4.9
59 BZ OUT Buzzer signal O 0 0 0
60 NC Not connected - - - -
61 WOW
MODE1
SRS WOW mode 1
(C8403U only)
O 0 0 0
62 WOW
MODE2
SRS WOW mode 2
(C8403U only)
O 0 0 0
63 WOW
MODE3
SRS WOW mode 3
(C8403U only)
O 0 0 0
64 DIM1 Not connected - - - -
65 DIM2 Not connected - - - -
66 MAIN
CNT2
Power control for
Hub
O 5.0 5.0 5.0
67 SRC KEY SOURCE key
detection
I 5.0 4.9 5.0
68 PANEL IN Panel attachment
detection
I - - -
69 RDS CLK RDS clock input INT 2.6 0 2.6
70 NC Not connected - - - -
71 RDS
DATA
RDS data input I 2.6 0.2 2.9
72 MAIN
CONT
Main power control O 4.9 4.9 4.9
73 INV CONT Dimmer power
control
O 5.0 5.0 5.0
74 AF MUTE Audio mute O 5.0 5.0 5.0
75 RESET Reset I 5.0 5.0 5.0
76 FOCUS
ELV
Focus elevation for
SRS WOW (C8403U
only)
O - - -
77 X1A Oscillator clock O 2.1 2.1 2.1
78 X0A Oscillator clock I 1.6 1.6 1.6
79 Vss GND - 0 0 0
Pin
No.
Port Description I/O (V)
FM AM CD
80 X1 Crystal oscillator
clock
I 2.0 2.0 2.0
81 X2 Crystal oscillator
clock
O 2.5 2.5 2.5
82 Vdd +5V power supply - 5.0 5.0 5.0
83 P00 Pulled down to L - 0 0 0
84 P01 Pulled up to H - 5.1 5.0 5.1
85 OFFSET
DET
Audio clipping level
detection from
Power amp.
I 0 0 0
86 STBY Standby for Power
amp.
O 5.0 5.0 5.0
87 AMP
MUTE
Mute for Power
amp.
O 0 0 0
88 ILL SENS Pulled up to H - 5.0 5.0 5.0
89 HB AM H-IC analog mode
select
O 5.2 5.2 0
90 EP DO EPROM comuni.
data input
O/I 000
91 EP DI (NC) Not connected - - - -
92 EP SK
(NC)
Not connected - - - -
93 SUB
RESET
Reset for display
CPU
O 4.9 5.0 4.9
94 DISPM
CONT
5V power control
for Display
O 0 0 0
95 NC Not connected - - - -
96 NC Not connected - - - -
97 NC Not connected - - - -
98 S LED Security LED drive O 0 0 5.0
99 ANT
CONT
Power control for
antenna motor
O 5.2 5.2 5.2
100 EP CS EPROM chip select I 0 0 0
9

10.2. Main Block [CQ-C7303N]
IC601 : C2CBKG000037
Pin
No.
Port Description I/O (V)
FM AM CD
1 PANEL
OPEN
Panel open
detection
I 0 5.2 5.2
2 PANEL
CLOSE
Panel close
detection
I 0 0 5.2
3 SUBM CNT 3.3V power control
for Display
O 5.0 - -
4 BATT Battery power
check
I 4.8 5.0 5.0
5 ACC Acc. power check I 4.8 5.0 5.0
6 SDA Serial data for
electronic volume
I/O 4.9 4.9 4.9
7 SCLK Serial clock for
electronic volume
O 4.9 4.9 4.9
8 CD MUTE Signal mute from
CD deck
I 5.0 5.0 5.0
9 Vss GND - 0 0 0
10 ST FM stereo detection I 5.1 5.2 5.2
11 PLL DI Serial data to PLL O 0.6 0 0
12 PLL DO Serial data from PLL I 5.2 5.2 5.2
13 PLL CLK Serial clock for PLL O 4.9 4.9 4.9
14 PLL CE Chip enable for PLL O 0 0 0
15 CD RESET Reset for CD deck O 4.9 4.9 4.9
16 SUB SI Serial data to
Display CPU
O 0.6 0.6 0.8
17 CD IN Disc-in detection I 5.0 5.0 5.0
18 SUB SO Serial data from
Display CPU
I 4.4 4.4 4.4
19 UP SO XM SO/UP SO Serial
data from Changer
I 1.6 1.6 1.6
20 UP CLK Serial clock for
Changer or Flash
writer
I 4.9 4.9 4.9
21 Vdd +5V power supply - 4.9 4.9 4.9
22 XM SI (MO)
/ UP SI
Serial data to
Satellite or Flash
writer
O 0 0 0
23 CD SI Serial data to CD
deck
O 0 0 0
24 CD SCLK Serial clock for CD
deck
I/O 0 0.4 0
25 CONDENSOR Capacitor
connection for
power
- 3.3 3.3 3.3
10