Marantz SR-14EX Service Manual page 33

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QY01:TMP93PW40DF
no port name
I/O USE
Sig. Name
act. Description
1 VREFL
I
-
-
-
A/D VREFL.
2 AVSS
I
-
-
-
A/D VSS
3 AVCC
I
-
-
-
A/D VCC
4 NMI
I
NMI
-
-
Pull Up
5 P70/TI0
I/O
O
_POWER OFF
L
6 P71/TO1
I/O
O
KILL IR
H
7 P72/TO2
I/O
O
RC-5 OUT
H
8 P73/TO3
I/O
O
SPEAKER OFF
H SPK RELAY
9 P80/INT4/
I/O
I
RC-5 IN
H Both Edge
10 P81/INT5/
I/O
I
SYNC0
H Rising Edge
11 P82/TO4
I/O
I
_HEAD PHONE
L
12 P83/TO5
I/O
I
-
-
Pull Up
13 P84/INT6/
I/O
I
_SURR. ACK
L Both Edge
14 P85/INT7/
I/O
I
H Rising Edge
SYNC1
15 P86/TO6
I/O
I
MULTI RC-5 IN
L
16 P87/INT0
I/O
I
_POWER DOWN
L
17 P90/TXD0
I/O TXD
DO0
-
I/F to SURR. µP
18 P91/RXD0
I/O RXD
DI0
-
I/F to SURR. µP
19 P92/SCLK0 I/O CLK
CLK0
-
I/F to SURR. µP
20 P93/TXD1
I/O
O
DO1
-
I/F to ICs
21 P94/RXD1
I/O
-
22 P95/SCLK1 I/O
O
CLK1
-
I/F to ICs
23 AM8/_16
I
-
-
-
Pull Up
24 CLK
O
-
-
-
Pull Up
25 VCC
I
-
-
-
Pull Up
26 VSS
I
-
-
-
to VSS
27 X1
I
-
-
-
20MHz
28 X2
O
-
-
-
20MHz
29 EA
I
-
-
-
Pull Up
30 RESET
I
-
-
-
31 P96/XT1
I/O
I
-
-
to VSS
32 P97/XT2
I/O
I
-
-
to VSS
33 TEST1
I
-
-
-
to TEST2
34 TEST2
I
-
-
-
to TEST1
35 PA0
I/O
O
OSD ON0
H
36 PA1
I/O
O
OSD ON1
H
37 PA2
I/O
O
_CLR LED
L NJU3718 CLR
38 PA3
I/O
O
MULTI RC-5 OUT
H
39 PA4
I/O
O
_CE8 (Volume 8ch)
L
40 PA5
I/O
O
SMUTE
H
no port name
I/O USE
Sig. Name
41 PA6
I/O
O
_RST SURR
42 PA7/SCOUT
I/O
O
_REQ SURR
43 ALE
O
-
-
44 VCC
I
-
-
45 P00
I/O
O
TU_CE(TUNER)
46 P01
I/O
O
CLK(TUNER)
47 P02
I/O
O
DO(TUNER)
48 P03
I/O
I
DI(TUNER)
49 P04
I/O
I
SD(TUNER)
50 P05
I/O
I
DI(RDS)
51 P06
I/O
O
_KILL CON
52 P07
I/O
O
-
53 P10
I/O
O
-CLKFL
54 P11
I/O
O
-DATAFL
55 P12
I/O
O
56 P13
I/O
O
-
57 P14
I/O
O
-
58 P15
I/O
O
-
59 P16
I/O
O
-
60 P17
I/O
O
-
61 WDTOUT
O
-
-
62 VSS
I
-
-
-
63 VCC
I
-
-
64 P20
I/O
I
FUNC. ENC. A
65 P21
I/O
I
FUNC. ENC. B
66 P22
I/O
I
VOL. ENC. A
67 P23
I/O
I
VOL. ENC. B
68 P24
I/O
I
GYRO A
69 P25
I/O
I
GYRO B
70 P26
I/O
I
-
71 P27
I/O
I
-
72 P30
I/O
O
CE0(AUDIO)
73 P31
I/O
O
_CE7(VIDEO)
74 P32
I/O
O
CE3(Multi Vol.)
75 P33
I/O
O
_CE6(MUTE)
76 P34
I/O
O
_CE5(LED)
77 P35
I/O
O
_CE4(FL)
78 P36
I/O
O
_CE1(OSD C)
79 P37
I/O
O
_CE2(OSD S)
80 P40
I/O
O
(RESERVED)
59
act. Description
no port name I/O USE
L
81 P41
I/O
O
L I/F to SURR. µP
82 P42
I/O
O
-
Pull Up
83 P60/
I/O
I
-
to VCC
84 P61/
I/O
I
H
85 P62/
I/O
I
-
86 P63/
I/O
I
-
87 P64/
I/O
I
-
88 P65/
I/O
I
89 P66/
I/O
I
L
-
90 P67/
I/O
I
L
91 VSS
I
-
-
92 P50/AN0
I
AN
-
93 P51/AN1
I
AN
-
94 P52/AN2
I
AN
-
95 P53/AN3
I
AN
-
96 P54/AN4
I
AN
-
97 P55/AN5
I
AN
-
98 P56/AN6
I
AN
-
99 P57/AN7
I
AN
-
VREFH
I
-
100
-
N.C
to VSS
-
to VCC
-
-
-
-
-
-
-
to VSS
-
to VSS
H
L
H
L
L
L
L
L
-
Sig. Name
act. Description
(RESERVED)
-
(RESERVED)
-
(RESERVED)
-
to VSS
(RESERVED)
-
to VSS
(RESERVED)
-
to VSS
SWITCH0
-
SWITCH1
-
SWITCH2
-
SWITCH3
-
SWITCH4
-
-
-
to VSS
-
-
pull down
POWER DET.
-
see below
ABNORMAL
-
see below
KEY IN0
-
KEY IN1
-
KEY IN2
-
KEY IN3
-
KEY IN4
-
-
-
A/D VREFH
60

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