Panasonic CQ-C7403U Service Manual

Also see for CQC7103U - CAR AUDIO - MULTI-LANG: Operating instructions Operating instructions

Contents

Panasonic CQ-C7403U Service Manual Manual pdf 10 page image

10.1. Main Block [CQ-C7403U/C7303U]IC601 : C2CBKG000035PinNo.Port Part Name &DescriptionI/O FM AM CD1 PANEL OPEN Panel open detection I 0 5.2 5.22 PANEL CLOSE Panel close detection I 0 0 5.23 SUBM CNT 3.3V power control forDisplayO 5 - -4 BATT Battery power check I 4.8 5 55 ACC Acc. power check I 4.8 5 56 SDA Serial data forelectronic volumeI/O 4.9 4.9 4.97 SCLK Serial clock forelectronic volumeO 4.9 4.9 4.98 CD MUTE Signal mute from CDdeckI 5 5 59 Vss GND - 0 0 010 ST FM stereo detection I 5.1 5.2 5.211 PLL DI (MO) Serial data to PLL O 0.6 0 012 PLL DO (MI) Serial data from PLL I 5.2 5.2 5.213 PLL CLK Serial clock for PLL O 4.9 4.9 4.914 PLL CE Chip enable for PLL O 0 0 015 CD RESET Reset for CD deck O 4.9 4.9 4.916 SUB SI Serial data to DisplayCPUO 0.6 0.6 0.817 CD IN Disc-in detection I 5 5 518 SUB SO Serial data fromDisplay CPUI 4.4 4.4 4.419 CH DATA/ UPSOXM SO/UP SO Serialdata from ChangerI 1.6 1.6 1.620 CH CLK/ UPCLKSerial clock forChanger or Flash writerI 4.9 4.9 4.921 Vdd +5V power supply - 4.9 4.9 4.922 XM SI (MO)/ UPSISerial data to Satelliteor Flash writerO 0 0 023 CD SI (MO) Serial data to CD deck O 0 0 024 CD SCLK Serial clock for CDdeckI/O 0 0.4 025 CONDENSOR Capacitor connectionfor power- 3.3 3.3 3.326 CD SO (MI) Serial data from CDdeckI 0 0 027 CH STB Strobe from Changer I 0 0 028 CH REM OUT Remote control codesto ChangerO 4.9 4.9 0.429 DECK V CONT Power control for CDdeckO 4.9 4.9 4.930 REMO INT Interrupt for remotecontrolI 3.7 3.7 3.731 CD FS Frame sync. for CDdeckO - - -32 Avdd +5V power supply - 5.1 5.1 5.133 AVREF +5V power supply - 5.1 5.1 5.134 AVGND GND - 0 0 035 AVSS GND - 0 0 036 SD FM/AM signal levelmeterI 0.2 0 0.337 INIT A Model setting A byvoltage levelI 0 0 038 INIT B Model setting B byvoltage levelI 0 0 039 A IN Spectrum analyzerdataI 0 0 040 Vss GND - 0 0 041 SYS ID1 Hub connection devicedetection ID 1I 0 0 0PinNo.Port Part Name &DescriptionI/O FM AM CD42 SYS ID2 Hub connection devicedetection ID 2I 5.2 5.2 5.243 HUB EVENT Bluetooth incomingdetectionI 5.2 5.2 5.244 HUB CNT Request of hubconnection checkO 0 0 045 CD SW1 Disc detection switch 1 I 0 0 046 CD SW2 Disc detection switch 2 I 0 0 047 MOD0 Operating mode control0 from Flash writerI 5.1 5.1 5.148 MOD1 Operating mode control1: pulled up to H- 5.1 5.1 5.149 MOD2 Operating mode control2 from Flash writerI 0 0 050 H STANDBY Standby control fromexternalI 5 5 551 DCDC CONT Not connected - - - -52 FP MOTOR1 Open/Close of Frontpanel 1O 4.9 5 4.953 FP MOTOR2 Open/Close of Frontpanel 2O 4.9 5 4.954 V CONT1 Reference voltagecontrol for motor driverO 0 0 555 REMO 1 Remote control data I 5 5 556 SA CLK Spectrum analyzerclockO 5 5 4.957 EXT MUTE Pulled up to H I 5.3 5.2 5.258 AMP CONT Power control forexternal AmplifierO 4.9 5 4.959 BZ OUT Buzzer signal O 0 0 060 OEL VCONT Not connected - - - -61 WOW MODE1 SRS WOW mode 1 O 0 0 062 WOW MODE2 SRS WOW mode 2 O 0 0 063 WOW MODE3 SRS WOW mode 3 O 0 0 064 DIM1 Dimmer control 1 O 0 0 065 DIM2 Dimmer control 2 O 0 0 066 MAIN CNT2 Power control for Hub O 5 5 567 SRC KEY SOURCE key detection I 5 4.9 568 PANEL IN Panel attachmentdetectionI - - -69 NC Not connected - - - -70 NC Not connected - - - -71 NC Not connected - - - -72 MAIN CONT Main power control O 4.9 4.9 4.973 INV CONT Dimmer power control O 5 5 574 AF MUTE Audio mute O 5 5 575 RESET Reset I 5 5 576 FOCUS ELV Focus elevation forSRS WOWO - - -77 X1A Oscillator clock O 2.1 2.1 2.178 X0A Oscillator clock I 1.6 1.6 1.679 Vss GND - 0 0 080 X1 Crystal oscillator clock I 2 2 281 X2 Crystal oscillator clock O 2.5 2.5 2.582 Vdd +5V power supply - 5 5 583 P00 Pulled down to L - 0 0 084 P01 Pulled up to H - 5.1 5 5.185 OFFSET DET Audio clipping leveldetection from Poweramp.I 0 0 086 STBY Standby for Poweramp.O 5 5 587 MUTE Mute for Power amp. O 0 0 088 ILL SENS Pulled up to H - 5 5 589 NC Pulled up to H - 5 5 590 NC Not connected - - - -91 NC Not connected - - - -10 TERMINALS DESCRIPTION10CQ-C7403U / CQ-C7303U / CQ-C7203U / CQ-C7103U