Marantz SA-11S1, Service Manual

Page: 53 / 80

IC731: M30624FGNGP
No. Pin Port Function I/O Initial Mode Action Note Description
(USER1:H/USER2:H)
1 P94/DA1/TB4IN P94 O H MULT_LED MULTI SURROUND(LED L=ON)
2 P93/DA0/TB3IN P93 O H DSCS1 CHIP SELECT for FRONT DAC
3 P92/TB2IN/SOUT3 SOUT3 O H DSDO CONTOROL SERIAL DATA for ALL
DAC CS4379 control data
4 P91/TB1IN/SIN3 P91 I USER1 MODEL SELECT 1 H
5 P90/TB0IN/CLK3 CLK3 O H DSCLK DATA CLOCK for ALL DAC CS4379 control data
clock
6 BYTE BYTE I BYTE PULL UP(8bit)
7 CNVss CNVss I CNVSS PULL DOWN 5.6k ohm)
8 P87/XCIN P87 O H DSCS2 CHIP SELECT for SURROUND DAC CS4379 SURROUND
ch chip select
9 P86/XCOUT P86 O H DSCS3 CHIP SELECT for DXP7001 DAC or
DISPLAY OFF DISPLAY OFF=LOW
10 RESET~ RESET~ I RESET RESET INPUT
11 XOUT XOUT O X.TAL OSC OUT
12 VSS VSS - VSS GND
13 XIN XIN I X.TAL OSC IN
14 VCC VCC - 3.3V POWER INPUT
15 P85/NMI~ P85 I P_UP1 10K PULL UP(NON CONECT) NOT USE
16 P84/INT2~ INT2~ I/O IR_IN IR INPUT SIGNAL(Ma:RC-5/
De:SHARP FORMAT) IR remote control
input
17 P83/INT1~ INT1~ I MINT INT from CXD1885Q
18 P82/INT0~ INT0~ I DRVIRQ CXD1885Q DATA REQUEST
3-10
All manuals and user guides at all-guides.com