Sony HCD-MD333 - Hi Fi Cd/minidisc Component Service Manual page 67

Pin No. Pin Name
51 LDIN
52 LDOUT
53 LD-LOW
54 PROTECT
55 REFLECT
56 PACK-IN
57 PACK-OUT
58 CHUCK-IN
59 LIMIT-IN
60 REC. P
61 PB. P
62 +5V
63 —
64 GND
65 to 72 —
73 to 78 —
79 SDA
80 SCL
81, 82 —
83 POWER
84, 85 —
86, 87 —
88 to 90 —
91 to 93 KEY0, KEY1, KEY2
94 —
95 SOURCE
96 AVSS
97 —
98 VREF5V
99 3.3V
100 —
I/O
O MD loading-in signal output to LB1830M (IC153)
O MD loading-out signal output to LAB1830M (IC153)
O Loading motor voltage control signal output to the loading motor driver
I MD PROTECT switch (S683) detect signal input terminal
I MD REFLECT switch (S682) detect signal input terminal
I Not used
I MD PACK OUT switch (S686) detect signal input terminal
I MD CHUCKING IN switch (S685) detect signal input terminal
I MD LIMIT IN switch (S681) detect signal input terminal
I MD REC POSITION switch (S688) detect signal input terminal
I MD PB POSITION switch (S687) detect signal input terminal
— Power supply (+5V)
— Not used (fixed at "L")
— Ground terminal
— Connect terminal 65 to 72 Not used (fixed at "L")
— Not used (fixed at "L")
I/O Tow-way data bus for the EEPROM (IC171)
O Clock signal output to the EEPROM (IC171)
— Not used (fixed at "L")
—
Conenct terminal 83 to 85 Not used (fixed at "L")
—
— Not used (fixed at "L")
— Connect terminal 88 to 90 Not used (fixed at "L")
— Connect terminal 91 to 93 Not used (fixed at "H")
— Not used (fixed at "L")
— Not used (fixed at "L")
— Ground terminal
— Not used (fixed at "L")
— Power supply (+5V)
— Power supply (+3.3V)
— Not used (fixed at "L")
– 93 –
Function