Sony MDSJE320 Service Manual - Page 41

Sony MDSJE320 - MiniDisc Recorder Manual

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Pin No. 86 87 88 89 90 91 92 93 94 95 96 to 98 99 100 Pin Name TFDR DVDD FFDR FRDR FS4 SRDR SFDR SPRD SPFD TEST0 TEST1 to TEST3 DVSS EFMO I/O Function O Tracking servo drive PWM output (+) - +3V power supply (Digital) O Focus servo drive PWM output (+) O Focus servo drive PWM output (-) O 176.4 kHz clock signal output (X'tal) (Not used) O Sled servo drive PWM output (-) O Sled servo drive PWM output (+) O Spindle servo drive PWM output (-) O Spindle servo drive PWM output (+) I (S) I Test input (Fixed at "L") - Ground (Digital) O EFM output when recording • Abbreviation EFM: Eight to Fourteen Modulation - 57 -

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— 57 —
• Abbreviation
EFM: Eight to Fourteen Modulation
Function
Pin No.
Pin Name
I/O
86
87
88
89
90
91
92
93
94
95
96 to 98
99
100
TFDR
DVDD
FFDR
FRDR
FS4
SRDR
SFDR
SPRD
SPFD
TEST0
TEST1 to TEST3
DVSS
EFMO
O
—
O
O
O
O
O
O
O
I (S)
I
—
O
Tracking servo drive PWM output (+)
+3V power supply (Digital)
Focus servo drive PWM output (+)
Focus servo drive PWM output (–)
176.4 kHz clock signal output (X’tal) (Not used)
Sled servo drive PWM output (–)
Sled servo drive PWM output (+)
Spindle servo drive PWM output (–)
Spindle servo drive PWM output (+)
Test input (Fixed at “L”)
Ground (Digital)
EFM output when recording