Sony D-V7000 Service Manual page 26

Sony portable video cd player
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Pin No.
Pin Name
76
ESP-DATA
77
ESP-LT
78
ESP-SENSE
79
XLASERCTL
80
DSP-SCOR
81
OSC1
82
OSC0
83
GND
84
XT
85
XTO
86
A-SELECT
87
XIRCTL
88
SYS XMT RQ
89
SYS RCV RDY
90
MPG XMT RQ
91
ESS-DATAO
92
ESS-DATAI
93
ESS-CLK
94
RESET
95
TEST
96
DBB CTL2
VDDL
97
98 to 100 VDD1 to VDD3
I/O
O
Serial data output terminal Not used (open)
O
Serial data latch pulse signal output terminal Not used (open)
I
Sense serial data input terminal Not used (open)
O
Laser diode on/off control signal output to the CXA1791N (IC501) "L": laser on
I
Sub-code sync (S0+S1) detection signal input from the CXD2545Q (IC601)
O
Main system clock output terminal (4.19 MHz)
I
Main system clock input terminal (4.19 MHz)
Ground terminal (digital system)
I
Sub system clock input terminal Not used (fixed at "L")
O
Sub system clock output terminal Not used (open)
Selection signal output to the DATA, BCLK, LRCK signal select switch (IC301)
O
"L": CD play, "H": video CD play
O
Power supply on/off control signal for the remote control receiver (IC401) "L": power on
O
Communication request signal output to the MPEG audio/video decoder (IC901)
O
Ready signal output to the MPEG audio/video decoder (IC901)
I
Communication request signal input from the MPEG audio/video decoder (IC901)
O
Serial data output to the MPEG audio/video decoder (IC901)
I
Serial data input from the MPEG audio/video decoder (IC901)
O
Serial data transfer clock signal output to the MPEG audio/video decoder (IC901)
System reset signal input from the reset signal generator (IC702) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
Service mode setting terminal The stop status is reset with the falling edge of input signal
I
"L": service mode, Normally: "H"
MEGA BASS level control signal output terminal
O
"L": MEGA BASS level-1, "H": MEGA BASS level-2 Not used (open)
Power supply output for the liquid crystal display bias
Power supply output for the liquid crystal display bias
Function
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