Sony MDS-DRE1 Service Manual page 55

Pin No. Pin Name
77 TE
78 AUX2
79 DCHG
80 APC
81 TEST1
82 ADFG
83 TS25
84 LDDR
85 TRDR
86 TFDR
87 FFDR
88 DVDD1
89 FRDR
90 FS4
91 SRDR
92 SFDR
93 SPRD
94 SPFD
95 DCLO
96 DCLI
97 XDCL
98 OFTRK
99 COUT
100 DVSS2
* I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
I/O
I (A) Tracking error signal input from the CXA1981AR (IC101)
I (A) Auxiliary signal input terminal Not used (fixed at "L")
I (A) Connected to the ground
I (A) Error signal input for the laser automatic power control Not used (fixed at "L")
I Input terminal for the test (fixed at "L")
ADIP duplex FM signal (22.05 kHz ± 1 kHz) input from the CXA1981AR (IC101)
I
(TTL schmidt input)
I Input terminal for the test (fixed at "L")
O Laser automatic power control signal output to the CXA1981AR (IC101)
O Tracking servo drive PWM signal (–) output to the MPC17A38VMEL (IC151)
O Tracking servo drive PWM signal (+) output to the MPC17A38VMEL (IC151)
O Focus servo drive PWM signal (+) output to the MPC17A38VMEL (IC151)
— Power supply terminal (+5V) (digital system)
O Focus servo drive PWM signal (–) output to the MPC17A38VMEL (IC151)
O Clock signal (176.4 kHz) output to the MPC17A38VMEL (IC151) (MCLK system)
O Sled servo drive PWM signal (–) output to the MPC17A38VMEL (IC151)
O Sled servo drive PWM signal (+) output to the MPC17A38VMEL (IC151)
O Spindle servo drive PWM signal (–) output to the MPC17A38VMEL (IC151)
O Spindle servo drive PWM signal (+) output to the MPC17A38VMEL (IC151)
O Not used (open)
I Not used (fixed at "H")
O Not used (open)
O Spindle motor FG detection signal output to the system controller (IC101)
O Traverse count signal output terminal Not used (open)
— Ground terminal (digital system)
Function
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