Onkyo DX-7555, Руководство по обслуживанию

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DX-7555
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS-4
Q2003 : CXD3014R (CD Digital Signal Processor with Built-in RF Amplifier and
Digital Servo + Digital High & Bass Boost + CODEC) -3/4
TERMINAL DESCRIPTION (Continued)
Pin No. Pin name I/O Description
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
TFDR
TRDR
FFDR
FRDR
IOV
DD
1
AVD1
AVS1
E
F
TEI
TEO
FEI
FEO
VC
A
B
C
D
AVD2
RFDCO
PDSENS
AC_SUM
EQ_IN
LD
PD
RFC
AVS2
RFACO
RFACI
AVD3
BIAS
ASYI
ASYO
VPCO
VCTL
AVS3
CLTV
FILO
FILI
PCO
DV
SS
6
DV
DD
6
SRAMSTB
DV
DD
1
DV
SS
1
O
O
O
O
---
---
---
I
I
I
O
I
O
I/O
I
I
I
I
---
I/O
I
O
I
O
I
I
---
O
I
---
I
I
O
O
I
---
I
O
I
O
---
---
I
---
---
Tracking drive output.
Tracking drive output.
Focus drive output.
Focus drive output.
I/O digital power supply.
Analog power supply.
Analog GND.
E signal input.
F signal input.
Tracking error signal input to DSSP block or F input.
Tracking error signal output from RF amplifier block.
Focus error signal input to DSSP block or A input.
Focus error signal output form RF amplifier block.
Center voltage output from RF amplifier block.
Center voltage input to DSSP block by command switch.
A signal input.
B signal input.
C signal input.
D signal input.
Analog power supply.
RFDC signal output.
RFDC signal input to DSSP block by command switch.
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 GND.
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 = V
SS
, High = V
DD
)
Wide-band EFM PLL charge pump output.
Wide-band EFM PLL VCO2 control voltage input.
Analog GND.
Multiplier VCO1 control voltage input.
Master PLL (slave = digital PLL) filter output.
Master PLL filter input.
Master PLL charge pump output.
Internal digital GND.
Internal digital power supply.
Normally low.
Internal digital power supply.
Internal digital GND.