Sony CDX-C8850R Service Manual page 35

Pin No. Pin Name
55 VOL LOAD
56 VOL DATA L
57 VOL DATA R
58 VOL CLK
59 DSP XLAT
60 RC IN1
61 ACC IN
62 POW ON
63 VSS
64 BOOT
65 PWM
66 NCO
67 RDS DAVN
68 CD/MD
69 CD/MD ON
70 I2C SDA
71 I2C SCL
72 SHIFT
73 X1A
74 X0A
75 NCO
76 KEY ACK
77 BU IN
78 SP LAT
79 DSP REDY
80 TEST
81 EMPH
82 WAKE UP
83 TEL MUTE
84 TU ON
85 ILL IN
86 HSTX
87 MD2
88, 89 MD1, 0
90 RST
91 VSS
92 X0
93 X1
94 VCC
95 DOOR IND
96 DSP ON
97 NCO
98 AMP-STBY
99 – 102 TIR D0 – 3
103 TIR RD
104 TIR WR
105 TIR CE1
106 TIR CE0
107 AD ON
108 NCO
109 NOSE SW
110 CSV REQ
I/O
O Electronic volume IC data latch output
O Electronic volume L-ch setting data output
O Electronic volume R-ch setting data output
O Electronic volume setting clock output
O Data latch output to digital signal processor.
I Rotary commander shift switch input
I Accessory signal input
O System power ON/OFF control output
— Ground
O Low output at display micon rewriting.
I PWM control input
— Not used. (Open)
I RDS IC data reception mode read input
I CD/MD mechanism deck setting input ("L" : CD mechanism deck)
I CD/MD servo B+ detection input
I/O For communication with device connected to I
I/O For communication with device connected to I
O Shift signal output
O Low speed frequency output (32.768 kHz)
I Low speed frequency input (32.768 kHz)
— Not used. (Open)
I Key input detection at micon sleeping.
I Back-up power supply detection input
O Spectrum analyzer data latch output
I Ready signal input from digital signal processor.
I Test input
I Emphasis signal input at MD/CD play. ("H" : emphasis ON)
O DC/DC converter power supply ON/OFF control output (Not used in this set.)
I Audio signal muting input ("L" : mute ON)
O Tuner power supply ON/OFF output
I Illumination signal input
I Hardware standby input
I Operation mode designation input (Fixed at "L" in this set.)
I Operation mode designation input (Fixed at "H" in this set.)
I Reset input
— Ground
I High speed frequency input (3.58 MHz)
O High speed frequency output (3.58 MHz)
— Power supply pin (+5 V)
O Front panel door indicator output
O Digital signal processor power control output
— Not used. (Open)
O Power amplifier standby signal output
Parallel translation data line input from/output to TIR reception audio record/
I/O
playback IC.
O Read pulse output to TIR reception audio recording/playback IC.
O Write pulse output to TIR reception audio recording/playback IC.
O Chip enable output to TIR reception audio recording/playback IC.
O Chip enable output to TIR reception audio recording/playback IC.
O Power control output to keys.
— Not used. (Open)
I Front panel attachment detection input
I Data transfer request input from CSV control IC.
Pin Description
2
C-bus.
2
C-bus.
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