![background image](http://html.mh-extra.com/html/sony/cdp-ex770/cdp-ex770_service-manual_420236131.webp)
– 66 –
Pin No. Pin Name
I / O
Function
39
LD LOW
O
Loading motor voltage control signal output to the loading motor driver (IC311)
40
NC
—
Not used (open)
41
MNT2
I
Monitor 2 signal input from the CXD2650R (IC121)
42
MNT3
I
Monitor 3 signal input from the CXD2650R (IC121)
43
LED0
O
LED drive signal output terminal Not used (open)
44
NC
—
Not used (open)
45
NC
—
Not used (open)
46
BUS-OUT
O
Audio bus signal output terminal
47
GND
—
Ground terminal
48
+3.3V
—
Power supply terminal (+3.3V)
49
NC
—
Not used (open)
50
JOG1
I
JOG dial pulse input of the rotary encoder (S741)
51
JOG0
I
JOG dial pulse input of the rotary encoder (S741)
52
SDA
I/O
Two-way data bus for the EEPROM (IC171)
53
SCL
O
Clock signal output to the EEPROM (IC171)
54
FS32
O
LED drive signal output terminal of the 32 kHz indication LED (D734) “L”: LED on
55
FS44
O
LED drive signal output terminal of the 44.1 kHz indication LED (D735) “L”: LED on
56
FS48
O
LED drive signal output terminal of the 48 kHz indication LED (D736) “L”: LED on
57
NC
—
Not used (open)
58
NC
—
Not used (open)
59
AUBK
I
Check signal input of the audio bus connection
60
SA/SW
O
Selection signal output terminal of the audio bus and remote controller Not used (open)
61
AIN
O
LED drive signal output terminal of the ANALOG IN indication LED (D733) “L”: LED on
62
NC
—
Not used (open)
63
CLKSET0
I
Clock destination selected terminal (fixed at “H” in this set)
64
CLKSET1
I
Clock destination selected terminal (fixed at “L” in this set)
65
GND
—
Ground terminal
66
+3.3V
—
Power supply terminal (+3.3V)
67
SCLK
O
Serial clock signal output to the CXD2650R (IC121) and A/D, D/A converter (IC201)
68
SWDT
O
Writing data output to the CXD2650R (IC121) and A/D, D/A converter (IC201)
69
SRDT
I
Reading data input from the CXD2650R (IC121)
70
NC
—
Not used (open)
71
FLCLK
O
Serial data transfer clock signal output to the fluorescent indicator tube driver (IC701)
72
FLDATA
O
Serial data output to the fluorescent indicator tube driver (IC701)
73
FLCS
O
Chip select signal output to the fluorescent indicator tube driver (IC701)
74
NC
—
Not used (open)
75
LDON
O
Laser diode on/off control signal output to the automatic power control circuit “H”: laser on
76
PIT/GRV
O
Pit/groove detection signal output terminal
“H” is output for the playback only disc or TOC area Not used (open)
77
FOK
I
Focus OK signal input from the CXD2650R (IC121) “H” is input when focus is on
78
NC
—
Not used (open)
79
LOCK
O
Lock signal output terminal Not used (open)
80
WRPWR
O
Laser power select signal output to the CXD2650R (IC121)
“H”: recording mode, “L”: playback mode
81
DIG-RST
O
Reset signal output to the CXD2650R (IC121) and BH6511FS (IC152) “L”: reset
Summary of Contents for CDP-EX770
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