Sony MDS-EX77 Service Manual page 61

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