Marantz SA-11S1, Service Manual

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IC731: M30624FGNGP
No. Pin Port Function I/O Initial Mode Action Note Description
(USER1:H/USER2:H)
70 P20/A0(/D0/?) A0 O A0 ADRRES LINE
71 P17/D15/INT5~ P17 O H ICLK IIC CLK FOR EE_ROM(AT24C04N)
72 P16/D14/INT4~ P16 I/O H IDAT IIC DATA FOR EE_ROM(AT24C04N)
73 P15/D13/INT3~ P15 I OPN_SW TRAY OPEN DETECT SW
74 P14/D12 P14 I CLS_SW TRAY CLOSE DETECT SW
75 P13/D11 P13 O H PCMRST DE:RESET for DXP7001 or
Ma:DISPLAY LED(L:ON) Flash(w:pull
up) RESET for
DXP7001(reset=L)
76 P12/D10 P12 I FILTI SACD: DAC SYSTEM CLK
SWITCHING CONTOROL IN (Low:384fs/
Hi:192fs) for FILTER-SW
77 P11/D9 P11 O H MUT2 MUTING for MULTI
CHANNEL(H:MUTE) RELAY/TR
78 P10/D8 P10 O H MUT1 MUTING for STEREO
CHANNEL(H:MUTE) RELAY/TR
79 P07/D7 D7 I/O D7 8bit DATA LINE
80 P06/D6 D6 I/O D6 8bit DATA LINE
81 P05/D5 D5 I/O D5 8bit DATA LINE
82 P04/D4 D4 I/O D4 8bit DATA LINE
83 P03/D3 D3 I/O D3 8bit DATA LINE
84 P02/D2 D2 I/O D2 8bit DATA LINE
85 P01/D1 D1 I/O D1 8bit DATA LINE
86 P00/D0 D0 I/O D0 8bit DATA LINE
87 P107/AN7/KI3~ P107 O H MODE CD/SACD SWITCHING
SIGNAL(L:CD,SACD:H) Switching of digital
audio data for SACD
and CD(L=CD,
H=SACD)
Data transwission
hold to recognition of
the next DISC
88 P106/AN6/KI2~ P106 O L FCS DISPLAY CHIP SERECT for FL
DRIVER ML9207-01GP chip
select
89 P105/AN5/KI1~ P105 O H DSRST2 DSP RESET2 for SURROUND
CHANNEL or ATT Mute signal fo Search
90 P104/AN4/KI0~ P104 O H DSRST1 DSP RESET1 for FRONT CHANNEL RESET for DAC
(reset=L)
91 P103/AN3 P103 O L FRRST DISPLAY DRIVER RESET ML9207-01GP reset
92 P102/AN2 AN2 I KEY2 KEYS SENS
93 P101/AN1 AN1 I KEY1 KEYS SENS
94 AVSS AVSS - GND AD GND
95 P100/AN0 AN0 I KEY0 KEYS SENS
96 VRef Vref I 3.3V AD reference
97 AVcc AVcc - 3.3V AD Vcc
98 P97/ADTRG~/SIN4 P97 I USER2 MODEL SELECT 2 H
99 P96/ANEX1/SOUT4 SOUT4 O L FDAT DISPLAY DATA for FL DRIVER ML9207-01GP control
data
100 P95/ANEX0/CLK4 CLK4 O L FCLK DISPLAY CLOCK for FL DRIVER ML9207-01GP control
clock
3-12
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