Denon AVR-4520CI Service Manual

Contents

193Pin Pin Name Symbol I/O Pull up/down LvCnv STBY STOP CECSTBY Function83 PB3/A11/PO27/TIOCC9/TIOCD9 NC O L L L NC84 PB2/A10/PO26/TIOCC9 C O L L L NC85 PB1/A9/PO25/TIOCA9/TIOCB9 V FANDET I M3VPu I L I NC86 P74/ADTRG3# V FANCONT ON O L L L NC87 P73 AEXP OE O L L L EXPANDER control pin(AUDIO MUTE)88 P72 AEXP CLK O L L L EXPANDER control pin(AUDIO MUTE)89 P71/CS4#-C/CS5#-C/CS6#-C/CS7#-C AEXP DATA O L L L EXPANDER control pin(AUDIO MUTE)90 P70/CS3#-B/ADTRG2# AEXP STB O L L L EXPANDER control pin(AUDIO MUTE)91 VCC VCC - - - - +3.3V92 PB0/A8/PO24/TIOCA9 NC O/I L L L NC93 VSS VSS - - - - GND94 PA7/A7/PO23/TIOCA8/TIOCB8/TCLKH NC O L L L NC95 PA6/A6/PO22/TIOCA8 VSEL A I I I I Master Volume rotation detection pin(Rotaryencoder)96 PA5/A5/PO21/TIOCA7/TIOCB7/TCLKG VSEL B I I I I Master Volume rotation detection pin(Rotaryencoder)97 PA4/A4/PO20/TIOCA7 MHL VBUS CONT O L L L MHL VBUS control pin98 PA3/A3/PO19/TIOCC6/TIOCD6/TCLKF DAC(ETHER) MUTE O L L L DAC MUTE control pin(PCM5100 forDM860A),MUTE ON="L"99 PA2/A2/PO18/TIOCC6/TCLKE HUB SDA O HUB3VPu L L L HUB control pin100 PA1/A1/PO17/TIOCA6/TIOCB6 HUB SCL O HUB3VPu L L L HUB control pin101 PA0/A0/BC0#/PO16/TIOCA6 HUB CONTROL O L L L HUB control pin102 PE7/IRQ7-A/D15 MHL CABLE DET I I I I MHL Cable detection pin103 PE6/IRQ6-A/D14 (MHL W/U) I I I I (MHL WakeUp detection pin)104 PE5/IRQ5-A/D13 REQ SOMI I I L I MAIN-SUB CPU Communication controloutput105 PE4/D12 ISEL A I I I I Input Selector rotation detection pin(Rotaryencoder)106 PE3/D11 ISEL B I I I I Input Selector rotation detection pin(Rotaryencoder)107 PE2/D10 VOL CLK1 O L L L FUNCTION / VOLUME controlpin(R2A15220)108 PE1/D9 VOL DATA O L L L FUNCTION / VOLUME controlpin(R2A15220)109 PE0/D8 VOL CLK2 O L L L FUNCTION / VOLUME controlpin(R2A15220)110 PD7/D7 (VOL CLK3) O L L L NC111 PD6/D6 MHL POWER O L L L MHL(Sil1292) power control pin112 PD5/D5 ASO DET I I I I PROTECTION (ASO) (detect:"L")113 PD4/D4 DC DET I I I I PROTECTION (ASO) (detect:"L")114 P64/CS4#-B FANDET_HIGH I/O I/L L/L I/L FAN control detection pin (detect:"L")115 P63/CS3#-A/CS7#-A FANDET_ON I/O I/L L/L I/L FAN control detection pin (detect:"L")116 P62/CS2#-A/CS6#-A E SPI CS O N3VPu L L L ETHERNET communication control pin(DM860A)117P61/CS1#/CS2#-B/CS5#-A/CS6#-B/CS7#-B(FRONT RESET) O L L L Reset for Front HDMI(SiI1292)118 P60/CS0#/CS4#-A/CS5#-B NC O L L L NC119 PD3/D3 NC O L L L NC120 PD2/D2 NC O L L L NC121 PD1/D1 FL CLK O L L L VFD control pin122 PD0/D0 FL DATA O L L L VFD control pin123 P97/AN15 CURRENT DET I/O I/L L/L I/L AMP current detection pin124 P96/AN14 TR DET (THERMAL) I/O I/L L/L I/L TR thermal detection pin125 P95/AN13 THERMALINA I/O I/L L/L I/L PROTECTION detection pin (detect:"L")126 P94/AN12 THERMALINB I/O I/L L/L I/L PROTECTION detection pin (detect:"L")127 P93/AN11 MAIN POWER O L L L MAIN POWER control pin