Sony HCD-MD333 - Hi Fi Cd/minidisc Component Service Manual page 65

Pin No. Pin Name
83 APCREF
84 LDDR
85 TRDR
86 TFDR
87 DVDD
88 FFDR
89 FRDR
90 FS4
91 SRDR
92 SFDR
93 SPRD
94 SPFD
95 FGIN
96 TEST1
97 TEST2
98 TEST3
99 DVSS
100 EFMO
I/O
Control signal output to the reference voltage generator circuit for the laser automatic
O
power control
O PWM signal output for the laser automatic power control Not used (open)
O Tracking servo drive PWM signal (–) output to the BH6511FS (IC152)
O Tracking servo drive PWM signal (+) output to the BH6511FS (IC152)
— Power supply terminal (+3.3V) (digital system)
O Focus servo drive PWM signal (+) output to the BH6511FS (IC152)
O Focus servo drive PWM signal (–) output to the BH6511FS (IC152)
O Clock signal (176.4 kHz) output terminal (X'tal system) Not used (open)
O Sled servo drive PWM signal (–) output to the BH6511FS (IC152)
O Sled servo drive PWM signal (+) output to the BH6511FS (IC152)
O Spindle servo drive PWM signal (–) output to the BH6511FS (IC152)
O Spindle servo drive PWM signal (+) output to the BH6511FS (IC152)
I
I
Input terminal for the test (fixed at "L")
I
I
— Ground terminal (digital system)
O EFM signal output terminal when recording mode
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Function