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Panasonic CQ-C7402W Service Manual
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Panasonic CQ-C7402W Service Manual

Wma mp3 cd player/receiver with full dot matrix display
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Specifications*
General
Power Supply
Tone Controls (Bass/Treble) Bass: ±12dB at 60Hz
Equalizer Center Frequency
Variable Range of Equalizer
Current Consumption
Maximum Power Output
Speaker Impedance
Pre-amp Output Voltage
Subwoofer Output Voltage
Pre-amp Output Impedance
Subwoofer Output Impedance 60Ω
CD Player
Sampling Frequency
Pick-up Type
Light Source
Wave Length
Frequency Response
Signal to Noise Ratio
Total Harmonic Distortion
Wow and Flutter
Channel Separation
DC 12V (11V - 16V),
Test Voltage 14.4V
Negative Ground
Treble: ±12dB at 16kHz
60, 160, 400, 1k, 3k, 6k, 16k (Hz)
-12dB to 12dB (2dB step)
Less than 2.2A
(CD mode; 0.5W × 4-speaker)
50W × 4(at 4Ω)
4 - 8Ω
5V
5V
60Ω
8 Times Oversampling
Astigma 3-Beam
Semiconductor Laser
790 nm
20Hz-20kHz (±1dB)
96dB
0.01% (1kHz)
Below Measurable Limits
75dB
AUTOMOTIVE AFTERMARKET
CQ-C7402W
WMA MP3 CD Player/Receiver with Full
Dot Matrix Display
FM Stereo Radio
Frequency Range
Usable Sensitivity
Stereo Separation
AM Radio
Frequency Range
Usable Sensitivity
Dimensions (W×H×D)**
Weight**
* 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.
distribution is a violation of law.
ORDER NO. ACED060609C3
87.5MHz - 108MHz
6dB/µV (S/N 30dB)
35dB (at 1kHz)
531kHz - 1,602kHz
28dB/µV (S/N 20dB)
178×50×155mm
1.6Kg
Unauthorized
copying
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  • Page 1 ORDER NO. ACED060609C3 AUTOMOTIVE AFTERMARKET CQ-C7402W WMA MP3 CD Player/Receiver with Full Dot Matrix Display Specifications* General FM Stereo Radio Power Supply DC 12V (11V - 16V), Frequency Range 87.5MHz - 108MHz Test Voltage 14.4V Usable Sensitivity 6dB/µV (S/N 30dB)

  • Page 2: Table Of Contents

    CQ-C7402W CONTENTS Page Page 1 ABOUT LEAD FREE SOLDER (PbF) 10 TERMINALS DESCRIPTION 2 FEATURES 11 IC BLOCK DIAGRAM 3 REPLACEING THE FUSE 12 REPLACEMENT PARTS LIST 4 MAINTENANCE 13 EXPLODED VIEW (Unit) 5 NOTES 14 CD PLAYER PARTS LIST...

  • Page 3: About Lead Free Solder (Pbf)

    CQ-C7402W 1 ABOUT LEAD FREE 6 DIMENSIONS 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;...

  • Page 4: Wiring Connection

    CQ-C7402W 8 WIRING CONNECTION...

  • Page 5: Disassembly Instructions

    CQ-C7402W 9 DISASSEMBLY INSTRUCTIONS 9.1. How to Remove the Flexible PCB(AP2)
  • Page 6 CQ-C7402W 9.2. How to Install the Main P.C.B. of the Electric Display...
  • Page 7 CQ-C7402W...

  • Page 8: Terminals Description

    CQ-C7402W 10 TERMINALS DESCRIPTION 10.1. Main Block Port Description (I/O) AM CD IC601 : C2CBJG000589 50 H STANDBY External standby input Port Description (I/O) 51 DC DC CNT DC/DC control for 60W AM CD (CQ-C8401W) PANEL OPEN PANEL OPEN detection 5.2 5.2...
  • Page 9 CQ-C7402W 10.2. Display Block Port Description (I/O) AM CD IC900 C2CBJH000095 98 S LED Security LED control output Port Part Name & Description 99 PANEL IN PANEL detect 5.2 5.2 FLASH A17 100 EP CS(NC) No Connection FLASH A18 FLASH A19...
  • Page 10 CQ-C7402W 10.3. CD Servo Block Port Part Name & Description KI1(SOURCE) Key return signal 1 INT/I IC401 : YESAM275 REMO INT Remote control signal Port Descriptions interference NC/WP/ACC No Connection CVSS1 NC/A21 No Connection TP407 NC/A22 No Connection CVSS2 FLASH CE...
  • Page 11 CQ-C7402W Port Descriptions Port Descriptions DATA M AUDIO serial data output 120 STAT Status signal input 121 D13 Data path of FLASH ROM Serial data output 122 D14 123 D15 /NMI 125 CVDD6 CORE CPU system (1.6V) power /INT0 supply...

  • Page 12: Ic Block Diagram

    CQ-C7402W 11 IC BLOCK DIAGRAM 11.1. Main Block IC241 : C1BB00001047 IC201 : C1BB00000796 IC251 : C1BB00001046...
  • Page 13 CQ-C7402W IC401 : C1BB00001045 IC670 : YEAMC14584BE IC730 : C0DAEKG00002 IC701 : C0DAZHF00004 IC271 : C1EA00000043...
  • Page 14 CQ-C7402W 11.2. Display Block IC702 : AN8065S-E1V IC901 : C3FBMD000209 IC752 : C0CAABG00012 IC902 : C0EBF0000374 IC755 : C0DBZGD00040 IC903 : B3MBZ0000006 IC760 : C0GBG0000032...
  • Page 15 CQ-C7402W 11.3. CD Servo Block IC402 : YESAM280 IC403 : YESAM171 IC404 : YESAM178 IC405 : YESAM270...

  • Page 16: Replacement Parts List

    CQ-C7402W 12 REPLACEMENT PARTS Ref. No. Part No. Part Name & Description Remarks Q793 YEANC114YKX Transistor LIST DIODEs Notes : D201 B0JCME000012 Diode D202 B0JCME000012 Diode 1. Be sure to make your orders of replacement parts D203 B0JCME000012 Diode according to this list.
  • Page 17 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks C278 YECUS1E104ZF Ceramic, 0.1µF 25WV C730 F1K1E334A022 Ceramic, 0.33µF 25WV C279 F2A1C4720027 Electrolytic, 4700µF 16WV C731 YECUX1C334KX Ceramic, 0.33µF 16WV C306 F2A1C100A502 Electrolytic, 10µF 16WV...
  • Page 18 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks J567 ERJ8GEY0R00V Chip, 0Ω 1/8W R367 ERJ6GEYJ561 Chip, 560Ω 1/10W J568 ERJ8GEY0R00V Chip, 0Ω 1/8W R373 ERJ3GEYJ183V Chip, 18kΩ 1/16W J570 ERJ8GEY0R00V Chip, 0Ω...
  • Page 19 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R701 ERJ3GEYJ103V Chip, 10kΩ 1/16W [E9571] Display Block R702 ERJ3GEYJ274V Chip, 270kΩ 1/16W IC´s AND TRANSISTORs R703 ERJ3GEYJ433V Chip, 43kΩ 1/16W...
  • Page 20 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks FB902 ERJ6GEY0R00V Chip, 0Ω 1/10W FB903 ERJ6GEY0R00V Chip, 0Ω 1/10W R901 ERJ3GEYJ221V Chip, 220Ω 1/16W LCD901 L5F000000009 R902 ERJ3GEYJ103V Chip, 10kΩ 1/16W...
  • Page 21 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks YEFE07552 Knob, VOLUME/PUSE SEL YEFX0052572 Moving Plate YEFE139458 Button, SRC/PWR YEFE139463 Button, SQ YEFE139466 Button, DEM YEFE139461 Button, MUTE/SBC.SW YEFE139469 Button, MENU/DIM YEFE139479 Button, TILT/OPEN (eject) YEFX0053029 Spring YEFE139485 Button, Relase...

  • Page 22: Exploded View (Unit)

    CQ-C7402W 13 EXPLODED VIEW (Unit)

  • Page 23: Cd Player Parts List

    CQ-C7402W 14 CD PLAYER PARTS LIST Ref. No. Part No. Part Name & Description Remarks C303 YESCC185 Ceramic, 0.01µF 50WV C304 YESCC185 Ceramic, 0.01µF 50WV Notes : C305 YESCC382 Ceramic, 680pF 50WV C306 YESCC382 Ceramic, 680pF 50WV 1. Be sure to make your orders of replacement parts...
  • Page 24 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks Ref. No. Part No. Part Name & Description Remarks R216 YESRG237 Chip, 5.6kΩ 1/10W RA403 YESXA002 Resistor Network, 100Ω * 4 R217 YESRG222 Chip, 1kΩ 1/10W RA404 YESXA002 Resistor Network, 100Ω * 4...
  • Page 25 CQ-C7402W Ref. No. Part No. Part Name & Description Remarks YESFX046150 Loading Roller YESJS01175 Collar Screw YERJT01001 Tapping Screw 2*3 YERJT01002 Tapping Screw 2*4 YEJT03117 Tapping Bind Screw 2*4 YERJS01002 Camera Screw 1.7*1.8 YERJS01003 Camera Screw 2*2 YERJS01004 Camera Tapping Screw 1.7*5...

  • Page 26: Exploded View (Cd Player)

    CQ-C7402W 15 EXPLODED VIEW (CD PLAYER)

  • Page 27: Wiring Diagram

    CQ-C7402W 16 WIRING DIAGRAM 16.1. Main/Connector Block (Top View)
  • Page 28 CQ-C7402W 16.2. Main/Connector Block (Bottom View)
  • Page 29 CQ-C7402W 16.3. CD Servo Block (Top View)
  • Page 30 CQ-C7402W 16.4. CD Servo Block (Bottom View)
  • Page 31 CQ-C7402W 16.5. Display Block...
  • Page 32 THIS PAGE IS JUST FOR THE PAGE LAYOUT USE ONLY.

  • Page 33: Schematic Diagram

    CQ-C7402W 17 SCHEMATIC DIAGRAM 17.1. Main/Connector Block B1CBGF000005 C0JBAA000372 B1GBNCEJ0003 B1GBNCEJ0003...
  • Page 34 CQ-C7402W 17.2. Display Block C3FBMD000209 DTA144EKAT46...
  • Page 35 R308 220p /10V C352 C119 3.3V 3.3V C406 0.1u R302 330 L302 R306 1k TP103 10uF Anal og GND 0.1u TP302 C407 C118 C154 0.1u 0.1u 220uF/10V C405 0.1u TP501 TP115 S-OUT RA 403 AR F R406 CQ-C7402W CD Servo...
  • Page 36 THIS PAGE IS JUST FOR THE PAGE LAYOUT USE ONLY.

  • Page 37: Block Diagram

    CQ-C7402W 18 BLOCK DIAGRAM 18.1. Main-1 Block...
  • Page 38 CQ-C7402W 18.2. Main-2/Display Block...
  • Page 39 CQ-C7402W 18.3. CD Servo Block...
  • Page 40 17 SCHEMATIC DIAGRAM 17.1. Main/Connector Block B1CBGF000005 C0JBAA000372...
  • Page 41 CQ-C7402W B1GBNCEJ0003 B1GBNCEJ0003...
  • Page 42 CQ-C7402W 17.2. Display Block DTA144EKAT46...
  • Page 43 C3FBMD000209...
  • Page 44 17.3. CD Servo Block To Main P.C.B 18P Connector CN101 3032-14-14 TP401 SYS 3.3V L201 L401 L402 Di gital GND R201 6.8k R215 TP202 5.6k R216 5.6k J104 0 R204 1k TP203 BA 5814FM CH1 Spindl e Motor CH2 Fe ed Motor CH3 Loa ding Motor (Not use) CH4 Focus Coil CH5 Tracking Coil...
  • Page 45 DV DD2 DV SS5 VDD3.3V 2V/DIV,0.5mS/DIV MDATA CV SS4 DV DD4 TP111 BDR1 BDX1 BFSR 1 BFSX1 STAT TP112 CLK2 STAT TP303 RC H TP301 3.3V 3.3V C406 0.1u TP302 C407 0.1u C405 0.1u RA 403 R406 CQ-C7402W CD Servo...

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