Denon AVR-2105/885 Service Manual

Also see for AVC-1890: Service manual

Contents

13AVR-2105/885 / AVC-189027 RELAY_H/P O RELAY H/P28 FUNC_UP O ENCODER INPUT (FUNCTION)29 H/P_DETECT I DETECT H/P30 FUNC_DOWN O ENCODER INPUT (FUNCTION)31 SURR_SB_MUTE O SURROUND BACK MUTE32 CNT_MUTE O CENTER MUTE33 TA1270_TC90A69F_CLK O TA1270/TC90A69F CONTROL34 SURR_MUTE O SURROUND MUTE35 NC - -36 MULTI SB RLY O ZONE2/SURROUND BACK : SELECTION RELAY37 RELAY_FRONT_B O FRONT B RELAY38 FL_DRV_RST O LC75721 RESET39 RELAY_POWER O POWER RELAY40 RESET I RESET41 GND - GND42 XTAL - OSILATOR CONECTION43 EXTAL - OSILATOR CONECTION44 FL_DRV_CE O LC75721 CE45 FL_DRV_DATA O LC75721 DATA46 FL_DRV/2090_CLK O LC75721/BU2090 CLOCK47 2090_DATA O BU2090 DATA48 VOL_DOWN I ENCODER INPUT (VOLUME)49 VOL_UP I ENCODER INPUT (VOLUME)50 SEL_DOWN I ENCODER INPUT (SELECTOR)51 SEL_UP I ENCODER INPUT (SELECTOR)52 AVSS - AVSS53 VREF - VREF54 AVDD - AVDD55 89057_INT - LC89057 INT56 TA1270_TC90A69 DATA O TA1270/TC90A69 DATA57 GREEN_LED O GREEN LED58 SET_OPT I MODEL SELECT59 STEP_OPT I AREA SELECT60 KEY_IN3 I KEY INPUT61 KEY_IN2 I KEY INPUT62 KEY_IN1 I KEY INPUT63 PWR_DOWN I POWER DOWN DETECT64 PROTECT I PROTECTION65 C-VIDEO_DET I Composit Signal Detect input66 SHARC_SCLK O SHARC EX(DSP) SCLK67 1837_CE O CODEC CE68 SHARC_RESET O SHARC EX(DSP) RESET69 FRONT_MUTE O FRONT MUTE70 STBY_LED O STANDBY LED71 NC - -72 NC - -73 74781 CS - LC74781 CONTROL ENABLE74 74781 SCLK O LC74781 CONTROL CLOCK75 SURR_BACK_MUTE O SURROUND BACK MUTE76 2090 CLK2 O BU2090 CLOCK2(VIDEO)77 RDS_DATA I TDA7330 CONTROL DATA78 RDS_CLK I TDA7330 CLOCK DATA79 FLAG3 I Special flag for ROM updata80 FLAG2 I DSP operation check flag81 FLAG1 I NON USE82 FLAG0 I EPROM chip select control for DSP83 MULTI MUTE O MULTI MUTE84 S-VIDEO_DET I S Signal Detect input85 REMOCON I REMOTE CONTROL SIGNAL INPUT86 COPM_DET I Compornent Signal inputPINNo. PIN NAME I/O FUNCTION