Sony HCD-RG55 Service Manual page 69

Pin No. Pin Name
80 CD U/D SW
81 STEREO
82 TUNED
TAPE PHOTO
83
SENSOR-A
TAPE PHOTO
84
SENSOR-B
85 REMCON IN
86 VR ENCODER B
87 VR ENCODER A
88 CD OPEN
89 VSS
90 VDD
91 PT8300-A LATCH
92 PT8300-B LATCH
93 LC72131 CE
94 M61519 CLOCK
LC72131,PT8300-AB,
95
M61519 DATA
96 LC72131 DATA IN
LC72131,PT8300
97
CLK
98 COIN
99 SQOUT
100 SQCK
I/O
I CD BU up/down switch signal input
I Stereo tuning signal input
I Tuning a frequency signal input
I A deck photo sensor singanl input
I B deck photo sensor singanl input
I Data input from the remote control receiver
I Volume signal input from the rotary encoder
I Volume signal input from the rotary encoder
I CD tray open switch signal input
— Ground pin
— Power supply pin (+5 V)
O Latch signal output to the I/O expander
O Latch signal output to the I/O expander Not used. (open)
O Chip enable signal output to the PLL tuner IC
O Clock output to the sound processor
O Data output to the PLL tuner IC, the I/O expander and the sound processor
I Data input from the the PLL tuner IC
O Clock output to the PLL tuner IC and the I/O expander
O CD command data signal output
I CD subcode Q signal input
O CD command clock signal output
HCD-RG55/RG55S
Description
3