Read Sony HCD-GX250 / MHC-GX250 Service Manual online
41
HCD-GX250
5-17. IC PIN FUNCTION DESCRIPTION
• IC101 CXD3058AR (RF AMP) (BD80A BOARD)
Pin No
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
I/O
I/O
I/O
I/O
—
I/O
O
I
—
O
O
O
O
O
O
—
—
—
I
I
I
O
I
O
I/O
I
I
I
I
—
O
I
O
I
O
I
I
—
O
I
—
I
I
O
O
I
—
I
O
I
Pin Name
MIRR
DFCT
FOK
VSS
LOCK
MDP
SSTP
IOVSS1
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
IOVDD1
AVDD0
AVSS0
E
F
TEI
TEO
FEI
FEO
VC
A
B
C
D
AVDD4
RFDCO
PDSENS
AC_SUM
EQ_IN
LD
PD
RFC
AVSS4
RFACO
RFACI
AVDD3
BIAS
ASYI
ASYO
VPCO
VCTL
AVSS3
CLTV
FILO
FILI
Description
Mirror signal input/output (Not used)
Defect signal input/output (Not used)
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
If GFS is low eight consecutive
Spindle motor servo control output
Disk innermost detection signal input
I/O digital ground
Sled drive output
Sled drive output
Tracking drive output
Tracking drive output
Focus drive output
Focus drive output
I/O digital power supply
Analog power supply
Analog ground
E signal input
F signal input
Tracking error signal input to DSSP block
Tracking error signal output from RF amplifier block
Focus error signal input to DSSP block
Focus error signal output from RF amplifier block
Center voltage output from RF amplifier block
A signal input
B signal input
C signal input
D signal input
Analog power supply
RFDC signal output (Not used)
Reference voltage pin for PD
RFAC summing amplifier output
Equalizer circuit input
APC amplifier output
APC amplifier input
Equalizer cut-off frequency adjustment pin
Analog ground
RFAC signal output
RFAC signal input or EFM signal input
Analog power supply
Asymmetry circuit constant current input
Asymmetry comparator voltage input
EFM full-swing output (Low = VSS, High = VDD)
Wide-band EFM PLL charge pump output
Wide-band EFM PLL VCO2 control voltage input
Analog ground
Multiplier VCO1 control voltage input
Master PLL (slave = digital PLL) filter output
Master PLL filter input
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