Denon AVC-1930 Service Manual download pdf (Page 17)

AVR-2307CI / AVR-2307 / AVR-887 / AVC-1930

BU4094BCFV (CNT : IC551-553)

Pin assignment of Audio extended IC.

BU4094 IC551 MUTE Control

STB：Main uCom 84pin

BU4094 IC552 RELAY Control

STB：Main uCom 82pin

BU4094 IC553 MUTE&RELAY Control

STB：Main uCom 83pin

PIN No. PIN PIN NAME FUNCTION

4 Q1 Pre Front Mute TR Control L：MUTE

5 Q2 Pre Center Mute TR Control L：MUTE

6 Q3 Pre Surround Mute TR Control L：MUTE

7 Q4 Pre Surround Back Mute TR Control L：MUTE

14 Q5 Subwoofer Mute TR Control L：MUTE

13 Q6 Surround Back Mute TR Control L：MUTE

12 Q7 Surround Mute TR Control L：MUTE

11 Q8 Center Mute TR Control L：MUTE

PIN No. PIN PIN NAME FUNCTION

4 Q1 H/P Relay Control H：HEAD PHONE ON

5 Q2 Center Speaker Relay Control H：Center Speaker ON

6 Q3 Surround Speaker Relay Control H：Surround Speaker ON

7 Q4 Surround Back Speaker Relay Control H：Surround Back Speaker ON

14 Q5 Front Speaker A Relay Control H：Front Speaker B ON

13 Q6 Front Speaker B Relay Control H：Front Speaker A ON

12 Q7 XM DACMUTE Control H：MUTE

11 Q8 XM DB Power Control H：ON L：OFF

PIN No. PIN PIN NAME FUNCTION

4 Q1 HDMI Power Control/VIDEO POWER H：ON L：OFF

5 Q2 Multi Mute Control L：MUTE

6 Q3 TUNER Mute TR Control L：MUTE

7 Q4 BiAmp Relay Control H：Biamp L：Surround Back/Zone2

14 Q5 Trigger2 Control H：Trigger2 ON

13 Q6 Trigger1 Control H：Trigger1 ON

12 Q7 Front Mute Control L：Mute

11 Q8 XM RESET L：RESET

SERIAL

STROBE

CLOCK

OUTPUT

ENABLE

Q'S

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 116 117

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Denon AVC-1930 Service Manual Page 17