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Download Durabrand DCF2003 Service manual
Transcript
Audio Block Diagram AUDIO SIGNAL IC431 (MTS/SAP AUDIO SIGNAL PROCESS) MAIN CBA FROM IF/VIDEO BLOCK SIF 21 STEREO FILTER VCA SAP FILTER 24 27 OFFSET CANCEL SAP DEMOD L+R FILTER 75uS DE-EMPH L-CH OFFSET CANCEL MATRIX L-R FILTER (L-R)/SAP SW SAP OUT FILTER I2C DECORDER WIDE BAND FILTER WIDE BAND RMS DET dBX DE-EMPH SPECTRAL EXPAND SPECTRAL FILTER SPECTRAL RMS DET WIDE BAND EXPAND 30 AGC R-CH OFFSET CANCEL 29 IC771 (INPUT SELECT) 11 15 14 12 DCF2703 JK701 AUDIO-IN(L) (REAR1) 13 5 DC VOL. 7 CN801 SP-L 1 SP-GND 2 SP801 SPEAKER L-CH 2 DC VOL. 12 CN802 SP-R 1 SP-GND 2 SP802 SPEAKER R-CH (L-CH) JK701 AUDIO-IN(R) (REAR1) (R-CH) JK702 AUDIO-IN(L) (REAR2) REAR1 5 TUNER 4 REAR2 2 FRONT 1 JK703 AUDIO-IN(R) (REAR2) 3 6 SW CTL JK722 AUDIO-IN(L) (FRONT) 9 JK723 AUDIO-IN(R) (FRONT) 10 Q825 DCF2703 Q761 AMP JK702 AUDIO-OUT(L) (REAR) JK703 AUDIO-OUT(R) (REAR) IC801 (AUDIO AMP) WF6 TUNER REAR2 REAR1 FRONT Q751 AMP Q792 Q791 Q793 6-5 Q794 +8V A-MUTE-H VOLUME A-O-MUTE FROM/TO INPUT 0 SYSTEM CONTROL INPUT 1 BLOCK SCL SDA 6-6 L6525BLA
