Sharp DV-550U Service Manual page 35

12-4-1. Block Diagram
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
DVDD 76
RO 77
DVSS 78
DVR 79
LPF
LO 80
DVDD 81
TEST1 82
TEST2 83
TEST3 84
BUS0 85
Micon
BUS1 86
inter
BUS2 87
face
BUS3 88
VDD 89
VSS 90
BUCK 91
/CCE 92
TEST4 93
/TSMOD 94
/RST 95
TEST0 96
/HSO 97
Audio output
/UHSO 98
EMPH 99
LRCX 100
1
1Bit
DAC
Clock
genelator
Address circuit
1Gk RAM
Correction
circuit
Digital out
circuit
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Servo control
Digital
ROM
equalizer
Automatic
A/D
RAM
adjusting circuit
CLV servo
Sync signal
protection
EFM
PWM
demodulation
Subcode
demodulation
circuit
PLL TMAX
Status
12-8
49 FVO
48 FMO
PWM
47 TEBC
46 RFGC
45 VREF
D/A
44 TRO
42 TEZI
+
–
+
–
+
–
Data slicer
VCO
+
–
26 LPFN
DV-550U
50 DMO
43 FOO
41 TEI
40 TSIN
39 SBAD
38 FEI
37 RFRP
36 RFZI
35 RFCT
34 AVDD
33 RFI
32 SLCO
31 AVSS
30 VCOF
29 VCOREF
28 PVREF
27 LPFO