Denon AVR-3805 Service Manual

Also see for AVC-3890: Control protocol Service manual

Contents

3333AVR-3805 / AVC-3890L/R-TVR-REF 20kohmL/R-TVR-INL/R-TVR-OUTL/R-MVR-OUT50kohm20kohmL/R-MVR-AGNDL/R-MVR-INFunctionPinNo. Pin Name I/O* For latch-up countermeasure, perform each power supply ON/OFF in the same timing.28 XOUT O X’tal osc. connecting output terminal29 XIN I X’tal osc. connection, external clock input terminal (24.576MHz or 12.288MHz)30 DVDD — Digital power31 DGND — Digital GND32 EMPHA/UO I/O Emphasis information/U-data output/Chip address setting terminal33 AUDIO/VO I/O Non-PCM detect/V-flag output/ Chip address setting terminal34 CKST I/O Clock switch transition period output/Demodulation master or slave function switching terminal35 INT I/O Interrupt output for μcom (Interrupt factor selectable)/Modulation or general I/O switching terminal36 RERR O PLL lock error, data error flag output37 DO O μcom I/F, read out data output terminal (3-state)38 DI I μcom I/F, write data input terminal39 CE I μcom I/F, chip enable input terminal40 CL I μcom I/F, clock input terminal41 XMODE I System reset input terminal42 DGND — Digital GND43 DVDD — Digital power44 TMCK/PIO0 I/O 256fs system clock input for modulation/General I/O in/output terminal45 TBCK/PIO1 I/O 64fs bit clock input for modulation/General I/O in/output terminal46 TLRCK/PIO2 I/O fs clock input for modulation/General I/O in/output terminal47 TDATA/PIO3 I/O Serial audio data input for modulation/General I/O in/output terminal48 TXO/PIOEN O/I Modulation data output/ General I/O enable input terminal28272161317121811191020921822723624525426VDDTr im VR0~+24dB/1dB stepTr im VR0~+24dB/1dB stepMain VR0~-95dB/0.5dB stepMain VR0~-95dB/0.5dB stepDATASTBCS2NCMVR-INNCMVR-A-GNDMVR-OUTTVR-OUTTVR-INTVR-REF3VSSCKGNDCS1NCMVR-INNCMVR-A-GNDMVR-OUTTVR-OUTTVR-INTVR-REF1NCNC1514NCNCTC94A32FG (AD: IC371, 373, 376, 378)FunctionPinNo. Pin Name2 VSS27 VDD12 GND3 L-TVR-REF Trim volume circuit26 R-TVR-REF4 L-TVR-IN25 R-TVR-IN5 L-TVR-OUT24 R-TVR-OUT6 L-MVR-OUT Main volume circuit23 R-MVR-OUT7 L-MVR-AGND22 R-MVR-AGND9 L-MVR-IN20 R-MVR-INChip select code switching input11 CS118 CS213 CK Clock input pin for data transfer16 DATA A-SW control data input pin17 STB Strobe input pin for data writing1, 28,8, 21, NC10,19,14,15CS1 CS2L L 0 0 0 1H L 1 0 0 1L H 0 1 0 1H H 1 1 0 1Chip select codeTC94A32FG Terminal Functionwww. xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com