Sony MDS-EX77 Service Manual page 62

Pin No. Pin Name I / O
82
BEEP O
83 ADARES O
84 SWL-A
O
85 SEL-B O
86 MOD
O
87 REC/PB O
88 NC
—
89 SCTX O
90 XLATCH
O
91 NC
—
92 NC
—
93 MUTE O
94 LDOUT
O
95 LDIN O
96 LIMIT-IN
I
97 PROTECT I
98 REFLECT I
99 GND
—
100 +3.3V
—
*1 Loading Motor Control
Operation
I N
Terminal
LDIN (pin (∞)
"H"
LDOUT (pin (¢) "L"
Beep sound drive signal output terminal
Reset signal output to the A/D, D/A converter (IC201)
Not used (open)
Not used (open)
Laser modulation select signal output
Playback power: "L", Stop: "H",
Recording power:
Not used (open)
Not used (open)
Recording data output enable signal output to the CXD2650R (IC121)
Writing data transmission timing output (Also serves as the magnetic head on/off output)
Serial latch signal output to the CXD2650R (IC121) and A/D, D/A converter (IC201)
Not used (open)
Not used (open)
Line mute control signal output to the CXA8065S (IC101)
Motor control signal output to the loading motor driver (IC311)
Motor control signal output to the loading motor driver (IC311)
Detection input from the sled limit-in detect switch (S681)
The optical pick-up is inner position when "L"
Rec-proof claw detect input from the protect detect switch (S683)
Detection input from the disc reflection rate detect switch (S682)
"L": high reflection rate disc, "H": low reflection rate disc
Ground terminal
Power supply terminal (+3.3V)
OUT BRAKE RUN IDLE
"L" "H" "L"
"H" "H" "L"
Function
Not used (open)
0.5 sec
2 sec
– 67 –
"L": reset
*1
*1
"H": write protect