Panasonic CQ-5302-U Service manual
Specification*
General
Power Supply DC 12V (11V - 16V),
Test Voltage 14.4V
Negative Ground
Current Consumption Less than 2.5A (CD mode, 0.5W 4
Speaker)
Maximum Power Output 37W × 4 channels at 400Hz,
Volume Control maximum)
Tone adjustment range Bass ; ±12dB at 100Hz
Treble ; ±12dB at 10kHz
Power Output 18W per channel into 4 ohms, 40
to 30000Hz at 3% THD
Suitable Speaker Impedance 4-8Ω
FM Stereo Radio
Frequency Range 87.9 - 107.9MHz
Usable Sensitivity 12dBf (1.1µV/75Ω, S/N 30dB)
50 dB Quieting Sensitivity 17 dBf. (1.8µV/75Ω)
Frequency Response 30-15000Hz±3dB
Alternate Channel Selectivity 75 dB
Stereo Separation 35 dB at 1kHz
Signal/Noise Ratio 70 dB (Mono)
Order No. ACED060432C1
C4
AUTOMOTIVE AFTERMARKET
CQ-5302U
Heavy Duty MP3 CD Player / Weather
Band Receiver with CD changer Control
/ Satellite Radio Ready
Weather Band Radio
Frequency Range 162.40 - 162.55MHz
Usable Sensitivity 3dB/µV (S/N 20dB)
Signal to Noise Ratio (40 dB/µV) 50dB
CD Player
Sampling Frequency 8 times oversampling
DA Converter MASH 1 bit/4 DAC System
Error Correction System Spot size detection method
Pick-Up Type 3-beam
Light Source Semiconductor Laser
Wavelength 790nm
Frequency Response 20Hz to 20,000Hz (±1dB)
Signal to Noise Ratio 85dB
Wow and Flutter Below measurable limits
Channel Separation 75 dB
Dimensions** (W×H×D) 7”×1-15/16×6-1/8”
(178×50×155mm)
Weight** 3 lbs.12oz (1.7kg)
AM Radio
Frequency Range 530 - 1,710kHz
Usable Sensitivity 28dB/µV (S/N 20dB)
* Specifications and the design are subject to possible modification
without notice due to improvements.
** Dimensions and Weight shown are approximate.
© 2006 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
CQ-5302U
CONTENTS
Page Page
1 ABOUT LEAD FREE SOLDER (PbF) 3
2 LASER PRODUCTS
3 FEATUERS
4 REPLACEING THE FUSE
5 MAINTENANCE
6 NOTES
7 DIMENSIONS
8 WIRING CONNECTION
9 BLOCK DIAGRAM
10 TERMINALS DESCRIPTI ON
11 PACKAGE AND IC BLOCK DIAGRAM
12 REPLACEMENT PARTS LIST
3
3
13 EXPLODED VIEW (Unit)
14 CD PLAYER MECHANICAL PARTS LIST
3
3
15 EXPLODED VIEW (CD Deck)
3
16 PACKING PARTS LIST
17 WIRING DIAGRAM
3
4
18 SCHEMATIC DIAGRAM-1
19 SCHEMATIC DIAGRAM-2
5
6
20 SCHEMATIC DIAGRAM for Printing with Letter Size
8
10
14
15
16
17
18
21
23
24
2
CQ-5302U
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 :
•
• 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 LASER PRODUCTS
3 FEATUERS
•
• 24-Stations Preset ( 6-FM1, 6-FM2 , 6-W/B , 6-AM ).
• •
•
• Rotary VOL.
• •
•
• Weather Band .
• •
•
• Power amplifier output : 37W x 4.
• •
•
• Slot-In Type FIX Face.
• •
4 REPLACEING THE FUSE
Use fuses of the same specified rating (10A). Using different
substitutes or fuses with higher ratings, or connecting the
product directly without a fuse, could cause fire or damage to
the stereo unit.
5 MAINTENANCE
Your products is designed and manufactured to ensure a
minimum of maintenance. Use a dry, a soft cloth for routine
exterior cleaning. Never use benzine, thinner or other solvents.
6 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]
This model has no servo alignment points because
microcomputer controls the servo circuit.
7 DIMENSIONS
3
CQ-5302U
8 WIRING CONNECTION
4
9 BLOCK DIAGRAM
CQ-5302U
5
CQ-5302U
10 TERMINALS DESCRIPTION
10.1. Main Block
IC601 : C2BBYY000199
Ref.
Part
No.
1 CH_STB CD Changer
2 ROTARY2 Rotary encoder
3 ROTARY1 Rotary encoder
4 NC None I 0 0 0 0
5 NC None I 0 0 0 0
6 NC None I 0 0 0 0
7 NC None I 0 0 0 0
8 NC None I 0 0 0 0
9 ILL_PWR Illumination Power O 5.21 5.21 5.21 5.2
10 RFSET System Reset I 5.17 5.17 5.17 5.1
11 XT2 SubSystem Clock _ 2.7 2.7 2.7 2.7
12 XT1 SubSystem Clock _ 2.4 2.4 2.4 2.4
13 FLMDO Flash memory
14 X2 Main System Clock _ 2.6 2.6 2.6 2.6
15 X1 Main System Clock _ 2.58 2.58 2.58 2.5
16 REGC Regulator _ 2.54 2.54 2.54 2.5
17 VSS GND _ 0 0 0 0
18 EVSS Port GND _ 0 0 0 0
19 VDD Power source _ 5.24 5.24 5.24 5.2
20 EVDD Port + _ 5.24 5.24 5.24 5.2
21 12C_SCL 12C Bus Clock O 5.09 5.09 5.09 5.0
22 12C_SDA 12C Bus Data I/O 5.09 5.09 5.09 5.0
23 NC NC I 5.07 5.07 5.07 5.0
24 SYS_PWR System Power Driver
25 ACC_DET Main Power IC
26 AMP_STBYStandby Signal
27 AMP_MUTEMute Signal Output O 5.25 5.25 5.25 5.2
28 MAIN_PWRDriver Signal
29 NC NC I 0 0 0 0
30 NC NC I 0 0 0 0
31 NC NC I 0 0 0 0
32 NC NC I 0 0 0 0
33 NC NC I 0 0 0 0
34 NC NC I 0 0 0 0
35 NC NC I 0 0 0 0
36 NC NC I 0 0 0 0
37 NC NC I 0 0 0 0
38 NC NC I 0 0 0 0
39 NC NC I 0 0 0 0
40 ACC_SENSAccessories Power
41 BATT_SENSBattery detect
42 PLL_DATARadio PLL
43 PLL_CLK Radio PLL
No.
Part Name &
Description
Comunication Strobe
Signal Input2(VOL
UP)
Signal Input2(VOL
DOWN)
programming mode
Signal Output
Detect Signal Input
Output
Output
source detect
Signal Input
Signal Input
Communication data
Rx
Communication clock
Tx
I/O(V)FM AM WB CD
I 0 0 0 0
I 4.9 4.9 4.9 4.9
I 0 0 0 0
_ 0 0 0 0
O 0.03 0.03 0.03 0.0
I 5.33 5.33 5.33 5.3
O 5.25 5.25 5.25 5.2
O 5.24 5.24 5.24 5.2
I 5.19 5.19 5.19 5.1
I 5.18 5.18 5.19 5.1
I 5.07 5.05 5.09 5.0
O 5.23 5.23 5.24 5.2
Ref.
Part
No.
44 PLL_COM Radio PLL
45 PLL_CE Radio PLL
46 NC NC I 0 0 0 0
47 NC NC I 0 0 0 0
48 CD_MUTE CD Deck Mute Signal
49 NC NC I 0 0 0 0
50 SAX_RX SAT(XM/Sirius)Commu
51 SAX_TX SAT(XM/Sirius)Commu
1
7
8
4
4
4
9
9
7
3
3
5
5
4
9
9
7
4
52 CD_COM CD Deck
53 CD_DATA CD Deck
54 CD_SCK CD Deck
55 CD_RESETCD Deck
56 CD_STB CD Deck
57 CD_SW2 CD Deck Disc In
58 CD_SW1 CD Deck Detect
59 AVREF A/D Converter _ 5.09 5.08 5.1 5.1
60 AVSS A/D Converter _ 0 0 0 0
61 SAT_DET SAT(XM/Sirius)Commu
62 VSM Radio Strong Signal
63 ST Radio Stereo Signal
64 WB_SD I 0 0 5.04 0
65 WRC_COM Wired remote
66 WRC_DATAWired remote
67 WRC_CLK Wired remote
68 WRC_CE Wired remote
69 LCD_CE LCD Driver
70 LCD_CLK LCD Driver
71 LCD_DATALCD Driver
72 LCD_COM LCD Driver
73 CH_REMO CD Changer
No.
Part Name &
Description
Communication clock
Tx
Communication
CippEnable Tx
Input
nication UART Data
Rx
nication UART Data
Tx
Communication Data
Output
Communication Data
Output
Communication Clock
Output
Communication Clock
Output
Communication
Strobe Output
Detect Signal Input
Signal Input
nication Detect
Input
Input
Input
control
communication Data
Rx
control
communication Data
Tx
control
communication Data
Rx
control
communication
CippEnable Tx
communication
CippEnable Rx
communication Clock
Tx
communication Data
Tx
communication Data
Rx
Comunication Remote
Data Tx
I/O(V)FM AM WB CD
O 0 0 0 0
O 0 0 0 0
I 0.01 0.01 0.01 5.0
I 4.93 4.93 4.95 4.9
O 0 0 0 0.0
O 0.13 0.13 0.13 0.1
I 2.2 2.2 2.2 1.5
O 5.18 5.19 5.19 5.1
O 5.19 5.2 5.2 5.2
O 3.5 3.5 3.5 3.5
I 0.01 0.01 0.01 5.0
I 5.06 5.05 5.07 5.0
I 2.72 2.71 2.73 2.7
I 3.3 3.1 0 0.5
I 5.04 5.04 0.68 4
O 4.78 4.78 4.79 4.7
I 5.05 5.02 5.06 5.0
O 4.91 4.9 4.9 4.9
O 0.3 0.3 0.32 0.3
O 0.16 0.15 0.16 0.1
O 5.15 5.16 5.16 5.1
I 5.09 5.08 5.1 5.0
O 5.24 5.25 5.25 5.2
O 0 0 0 0
9
5
6
3
9
7
7
8
5
1
6
7
9
4
6
Ref.
Part
No.
74 NC NC I 0 0 0 0
75 NC NC I 0 0 0 0
76 NC NC O 0 0 0 0
77 CH-DATA CD Changer
78 CH-CLK CD Changer
79 NC NC I 0 0 0 0
80 NC NC I 0 0 0 0
No.
Part Name &
Description
Comunication Data
Rx
Comunication Clock
Rx
I/O(V)FM AM WB CD
I 0 0 0 0
I 0 0 0 0
CQ-5302U
7
CQ-5302U
11 PACKAGE AND IC BLOCK DIAGRAM
11.1. Main Block
IC401:C1BB00001037
IC201 : C1BB00000543
8
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