Sony CX-LFA660 Service Manual page 36

CX-LFA660/LFA770
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• IC Pin Function Description
• BD81A BOARD IC101 CXD3059AR (RF AMP)
Pin No. Pin Name
1 MIRR
2 DFCT
3 FOK
4 VSS
5 LOCK
6 MDP
7 SSTP
8 IOVSS1
9 SFDR
10 SRDR
11 TFDR
12 TRDR
13 FFDR
14 FRDR
15 IOVDD1
16 AVDD0
17 AVSS0
18 NC
19 E
TE
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20 F
21 TEI
22 TEO
23 FEI
24 FEO
25 VC
26 A
27 B
28 C
29 D
30 NC
31 AVDD4
32 RFDCO
33 PDSENS
34 AC_SUM
35 EQ_IN
36 LD
37 PD
38 NC
39 RFC
40 AVSS4
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41 RFACO
42 RFACI
43 AVDD3
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44 BIAS
45 ASYI
46 ASYO
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I/O
I/O Mirror signal input/output (Not used)
I/O Defect signal input/output (Not used)
I/O Focus OK signal input/output (Not used)
— Internal digital ground
GFS is sampled at 460Hz; when GFS is high , this pin outputs a high signal
I/O
If GFS is low eight consecutive
O Spindle motor servo control output
I Disk innermost detection signal input
— I/O digital ground
O Sled drive output
O Sled drive output
O Tracking drive output
O Tracking drive output
O Focus drive output
O Focus drive output
— I/O digital power supply
— Analog power supply
— Analog ground
— Not used
I E signal input
I F signal input
I Tracking error signal input to DSSP block
O Tracking error signal output from RF amplifier block
I Focus error signal input to DSSP block
O Focus error signal output from RF amplifier block
I/O Center voltage output from RF amplifier block
I A signal input
I B signal input
I C signal input
I D signal input
— Not used
— Analog power supply
O RFDC signal output (Not used)
I Reference voltage pin for PD
O RFAC summing amplifier output
I Equalizer circuit input
O APC amplifier output
I APC amplifier input
— Not used
I Equalizer cut-off frequency adjustment pin
— Analog ground
O RFAC signal output
I RFAC signal input or EFM signal input
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— Analog power supply
i
I Asymmetry circuit constant current input
I Asymmetry comparator voltage input
O EFM full-swing output (Low = VSS, High = VDD)
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Description
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