Marantz SR-12N1G, Service Manual

Page: 45 / 76

61 62
39 P17/ I/O O _ADCAL L L ADC
40 PE0
I/O O
DATAODIR
L DIR
41 PE1 I/O O CLKDIR L DIR
42 PE2 I/O O _CEDIR L L DIR
43 PE3 I/O I DATAIDIR L DIR
44 PE4 I/O I XSTATE - DIR
45 PE5
I/O O
_XMODE
L L DIR
46 PE6 I/O O KILLSCI H L Kill CLKto Analog Input IC
47 PE7 I/O O _STANDBY L L Standby Power
48 VSS I - GND - - GND
49 PD0 I/O I/O EMADU0 - L exFROM I/F
50 PVCC1
I -
PVcc
- - +5V
51 PD1 I/O I/O EMADU1 - L exFROM I/F
52 PD2 I/O I/O EMADU2 L exFROM I/F
53 PD3 I/O I/O EMADU3 L exFROM I/F
54 PD4 I/O I/O EMADU4 L exFROM I/F
55 PD5
I/O I/O
EMADU5
L exFROM I/F
56 PD6 I/O I/O EMADU6 L exFROM I/F
57 PD7 I/O I/O EMADU7 L exFROM I/F
58 P30/ I/O I PEAK H - Peak Indicator
59 P31/ I/O O _RSTFL L L Reset FL Driver
60 PVCC2
I -
PVcc
- - +5V
61 P32/SDA1/
IRQ4/
I/O Int _PROTECT2 L - Emergency Protection
62 VSS I - GND - - GND
63 P33/SCL1/ I/O O BTMODE3 - L exFROM I/F
64 P34/SDA0/ I/O SD IICDATA - L I2C0 for DSP,E2PROM,EXP
65 P35/SCL0/
IRQ5/
I/O SC IICCLK - L I2C0 for DSP,E2PROM,EXP
66 P36/RxD4 I/O O _RSTDSP1 L L DSP1
67 NC - - N.C. - - N.C.
68 NC - - N.C. - - N.C.
69 P37/TxD4
I/O O
_RSTDSP2
L L DSP1
70 PG0/_IRQ6 I/O O BTMODE1 - L exFROM I/F
71 PG1/_IRQ7 I/O O BTMODE2 - L exFROM I/F
72 PG2 I/O O _FRWE L L exFROM I/F
73 PG3
I/O O
_FROE
L L exFROM I/F
74 PG4
I/O O
FREXTMEM
- L exFROM I/F
75 _WDTOVF No L - WDT OVF Output
76 PLLVCC I YES PLLVCC - - DC supply for PLL (3.3V)
77 PLLCAP YES - - For PLL
78 PCCVSS I YES GND - - GND for PLL
79 _RES
YES L - Reset
80 MNI
I NO - - Fix H
81 _STBY NO L H Fix H
82 FWE I YES FWE H L Normal :L, Boot :H
83 XTAL YES - - X’tal (4 or 5M)
84 VCC
I YES
Vcc
- - +3.3V
85 EXTAL YES - - X’tal (4 or 5M)
86 VSS I - GND - - GND
87 OSC1 I N
I
I
I
I
I
I
I
O
O - - +3.3V
88 OSC2 I NO - - N.C.
89 PVCC1
YES
PVcc
- - +5V
90 PF7/
φ
I/O I CAL H - Calibration status from ADC
91 VSS YES GND - - GND
92 PF6
I/O O
CE_ASW
L L Analog Switch
93 PF5
I/O O
CE_VOL
L Volume IC
94 PF4 I/O O CE_VOL-M L Volume IC
95 PF3/_IRQ3/ I/O INT REQ2 L - DSP2
96 PF2 I/O O _SPKROFF L L Speaker relay
97 PF1/BUZZ I/O
O
_BHIGH
L L Power Amp
98 PF0/_IRQ2
I/O INT
REQ1
L - DSP1
99 NC - - - - N.C.
100 NC - - - - N.C.
101 AVCC I - AVcc - - +5V
102 Vref
I -
Vref
- - +5V
103 P40/AN0
I AD
KEY0
- - Front Key
104 P41/AN1 I AD KEY1 - - Front Key
105 P42/AN2 I AD KEY2 - - Front Key
106 P43/AN3 I AD KEY3 - - Front Key
107 P44/AN4 I AD PROTECT1 - - Protect SPKR
108 P45/AN5 I AD MODE1 - - CPU mode
109 P46/AN6/DA0
I A
I
I
I
I
D
MODE2
- - CPU mode
110 P47/AN7/DA1 I I GYRO- - - Front Gyro
111 P90/AN8 I GYRO+ - - Front Gyro
112 P91/AN9 I I VOL+ - - Front Vol. Encoder
113 P92/AN10 I VOL- - - Front Vol. Encoder
114 P93/AN11 I I SEL+ - - Front Select. Encoder
115 P94/AN12
I
SEL-
- - Front Select. Encoder
116 P95/AN13
I I
_HPDET
L - HP Jack
117 P96/AN14/DA2 I I AVSSDET H - power circuit
118 P97/AN15/DA3 I I MLTRC5I - - Multi RC5 IN
119 AVSS - GND - - GND
120 P70/ I/O O _STBY LED L H* Standby LED On
121 P71/
I/O O
_RSFL
L L Front FL driver
122 P72/
I/O O
_CEFLD
L L Front FL driver
123 P73/ I/O O _BPOSD L L Video Circuit
124 P74/ I/O O _CEOSD L H Video Circuit
125 P75/SCK3/ I/O SC SIOCLK - - Front FL & Video(OSD)
126 P76/RxD3 I/O O D_A - L DIR or _ADC sel
127 P77/TxD3 I/O SO SIODATA - - Front FL & Video(OSD)
128 MD0 I YES MD0 - - +5V
Pin Assignment