Sony CDX-M800 Service Manual - Page 19

Pin No., Pin Name, Pin Description - no power

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Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin Name DST SEL2 CD LM LO CD LM EJ CD RST CD AO CD STB CD TSTB CD RFOK CD XTALEN VCC2 RESET OUT VSS TEST IN BUS ON SYS RST BUS/AUX LINK OFF ACC IN ILL IN RC IN1 NCO CD SELF SW TU ATT IN CLOSE SW OPEN SW I-DET MOT- MOT+ ROMC EN QUALITY MPTH VSM SA IN KEY IN1 KEY IN0 RC IN0 KEY ACK2 KEY ACK0 KEY ACK1 OPEN KEY RAM BU FLD ON FL ON AVSS DISP CE VREF AVCC DISP SI/RX DISP SO/TX DISP CKO I/O Pin Description I Destination select signal input O CD loading motor control signal output O CD eject motor control signal output O CD servo reset signal output O CD servo command/parameter discri. output O CD servo data strobe signal output O CD servo text strobe signal output I CD servo RFOK signal input O CD servo crystal OSC control signal output - Power supply pin (+5V) O Display CPU reset signal output - Ground I Test mode setting detect signal input O BUS ON control signal output O System reset signal output O BUS/AUX select control signal output O Link OFF control signal output I Accessory key ON detect signal input I Ilumination line detect signal input I Rotary commander signal input 1 O Not used. (Open) I CD self SW detect signal input I Tuner mute control signal input I Front panel close detect signal input I Front panel open detect signal input I Front panel current detect signal input O Front panel open/close control signal output O Front panel open/close control signal output I ROM correction enable signal input I Tuner noise detect signal input I Tuner multi-path signal input I S-meter signal input I SA data input I Key signal input 1 I Key signal input 0 I Rotary commander signal input 0 I Key acknowledge detect signal input 2 I Key acknowledge detect signal input 0 I Key acknowledge detect signal input 1 I Open key detect signal input I RAM reset detect signal input O FL driver power supply ON/OFF signal output O FL power supply ON/OFF signal - Ground O Display CPU chip enable output - A/D converter reference voltage (+5V) - Power supply pin (+5V) I Display CPU BUS data input O Display CPU BUS data output O Display CPU BUS clock output CDX-M800 19

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19
CDX-M800
Pin No.
Pin Name
I/O
Pin Description
51
DST SEL2
I
Destination select signal input
52
CD LM LO
O
CD loading motor control signal output
53
CD LM EJ
O
CD eject motor control signal output
54
CD RST
O
CD servo reset signal output
55
CD AO
O
CD servo command/parameter discri. output
56
CD STB
O
CD servo data strobe signal output
57
CD TSTB
O
CD servo text strobe signal output
58
CD RFOK
I
CD servo RFOK signal input
59
CD XTALEN
O
CD servo crystal OSC control signal output
60
VCC2
—
Power supply pin (+5V)
61
RESET OUT
O
Display CPU reset signal output
62
VSS
—
Ground
63
TEST IN
I
Test mode setting detect signal input
64
BUS ON
O
BUS ON control signal output
65
SYS RST
O
System reset signal output
66
BUS/AUX
O
BUS/AUX select control signal output
67
LINK OFF
O
Link OFF control signal output
68
ACC IN
I
Accessory key ON detect signal input
69
ILL IN
I
Ilumination line detect signal input
70
RC IN1
I
Rotary commander signal input 1
71
NCO
O
Not used. (Open)
72
CD SELF SW
I
CD self SW detect signal input
73
TU ATT IN
I
Tuner mute control signal input
74
CLOSE SW
I
Front panel close detect signal input
75
OPEN SW
I
Front panel open detect signal input
76
I-DET
I
Front panel current detect signal input
77
MOT–
O
Front panel open/close control signal output
78
MOT+
O
Front panel open/close control signal output
79
ROMC EN
I
ROM correction enable signal input
80
QUALITY
I
Tuner noise detect signal input
81
MPTH
I
Tuner multi-path signal input
82
VSM
I
S-meter signal input
83
SA IN
I
SA data input
84
KEY IN1
I
Key signal input 1
85
KEY IN0
I
Key signal input 0
86
RC IN0
I
Rotary commander signal input 0
87
KEY ACK2
I
Key acknowledge detect signal input 2
88
KEY ACK0
I
Key acknowledge detect signal input 0
89
KEY ACK1
I
Key acknowledge detect signal input 1
90
OPEN KEY
I
Open key detect signal input
91
RAM BU
I
RAM reset detect signal input
92
FLD ON
O
FL driver power supply ON/OFF signal output
93
FL ON
O
FL power supply ON/OFF signal
94
AVSS
—
Ground
95
DISP CE
O
Display CPU chip enable output
96
VREF
—
A/D converter reference voltage (+5V)
97
AVCC
—
Power supply pin (+5V)
98
DISP SI/RX
I
Display CPU BUS data input
99
DISP SO/TX
O
Display CPU BUS data output
100
DISP CKO
O
Display CPU BUS clock output