Read Sony DHC-EX77MD / DHC-MD77 / MDS-EX77 / MDS-EX770 Service Manual online
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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)
“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
“H”: recording mode, “L”: playback mode
81
DIG-RST
O
Reset signal output to the CXD2650R (IC121) and BH6511FS (IC152) “L”: reset
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