Read Sony MDX-61 Service Manual online
– 36 –
Pin No.
Pin Name
I/O
Function
79
DCHG
I (A)
Connected to the Ground
80
APC
I (A)
Input terminal for the laser APC Not used this set (Fixed at “L”)
81
TEST1
I
Test input terminal (Fixed at “L”)
82
ADFG
I
ADIP double turned FM signal input from CXA1981AR (IC100)
(22.05kHz
±
1kHz) (TTL schmitt input)
83
TS25
I
Test input terminal (Fixed at “L”)
84
LDDR
O
Laser APC signal output to CXA1981AR (IC100)
85
TRDR
O
Tracking servo drive signal outuput (–)
86
TFDR
O
Tracking servo drive signal outuput (+)
87
FFDR
O
Focus servo drive signal output (+)
88
DVDD1
–
Power supply terminal (+3.3V) (Digital system)
89
FRDR
O
Focus servo drive signal output (–)
90
FS4
O
176.4kHz clock signal output (MCLK system) Not used this set (OPEN)
91
SRDR
O
Sled servo drive signal output (+)
92
SFDR
O
Sled servo drive signal output (–)
93
SPRD
O
Spindle servo drive signal output (+)
94
SPFD
O
Spindle servo drive signal output (–)
95
DCLO
O
Not used (OPEN)
96
DCLI
I
Not used (Fixed at “H”)
97
XDCL
O
Not used (OPEN)
98
OFTRK
O
Offtrack signal output Not used this set (OPEN)
99
COUT
O
Traverse count signal output Not used this set (OPEN)
100
DVSS2
–
Ground terminal (Digital system)
*: On I/O section
(3): 3 state output
(A): Analog output
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