Read Sharp DV-720H (serv.man19) Service Manual online
DV-720S/DV-720S(K)
DV-720H
DV-720H
20
10-3. IC401 IX1690GE
FRONT END ENGINE
• Block Diagram
Clock
Gen
Gen
Auto-
slicer
slicer
ADC
x6
x6
DAC
x2
x2
PWM
x8
x8
GPIO
x16
x16
PWC
Timer
PROM
OAK
DSP
DSP
Scan ICE I/F
PRAM
XRAM
CPU I/F
INTC
(CPU)
INTC
(DSP)
CLV
YRAM
System Clock
DSP Clock
DSP Clock
CRPLL
Readin
CD
I/F
Host
I/F
Host
CPU
CPU
DVD I/F
Audio DAC I/F
IEC958 I/F
IEC958 I/F
ECC
EDO DRAM
(4/8Mbits)
Micon
RAM
intr
Motorola/Intel Bus
x10 bus
intr
intr
intr
intr
intr
intr
intr
Internal bus
27MHz
clock
clock
RF data
Focus err.
Tracking err.
TOT
RF Ripple
RF ref. voltage
RFZ
Tracking err.
TOT
RF Ripple
RF ref. voltage
RFZ
Focus drive
Tracking drive
Tracking drive
Slad control
Spindle drive
EQ control
etc.
Spindle drive
EQ control
etc.
Track count
RF comm.
Gain cntl.
Status input
etc.
Gain cntl.
Status input
etc.
ICPS2
IVCO
LP2
PLS1P
PLS2N
ISINKOUT
ICPS
INPUTX
COFFSET
VBIAS
FILT1
FILT2
FILT2
CRVDD
CRVSS
DRAM8MP
ADCIN[5:0]
ATPP
ATPM
VREFMIN
COMPVREF
IBIAS
ADCVDD[1:0]
ADCVSS[1:0]
DACOUT[1:0]
DACVDD
DACVSS
PWM[7:0]
GPIOP[15:0]
PWC
FSDATAP
SCLKP
HDATP[7:0]
HADRP[9:0]
HIFM
HRD
HWRN
HCSN
HWATN
HDTACKN
HINTN
20
26
25
23
22
15
24
21
19
18
16
17
27
28
134
26
25
23
22
15
24
21
19
18
16
17
27
28
134
1-4, 7-8
175
176
5
174
6
10, 173
9, 172
175
176
5
174
6
10, 173
9, 172
14, 13
11
12
11
12
162-169
144-159
141
36
37
144-159
141
36
37
117-124
105-114
133
132
131
130
127
126
125
105-114
133
132
131
130
127
126
125
92
85
88
86
87
45
48
46
47
85
88
86
87
45
48
46
47
93-98, 73-82
62-70
61
102
101
100
101
100
99
136
38
51-58
42
41
40
39
41
40
39
91
35
137
138
140
139
135
138
140
139
135
34
33
32
31
33
32
31
*1
*2
*2
PLL1TDENP
PLL1REFP
PLL1TDP
PLL1VDD
PLL1VSS
PLL2REFP
PLL2TDP
PLL2VDD
PLL2VSS
PLL1REFP
PLL1TDP
PLL1VDD
PLL1VSS
PLL2REFP
PLL2TDP
PLL2VDD
PLL2VSS
DDATP[15:0]
DADRP[8:0]
A9RP
WRN
RASN
UCASN
LCASN
DADRP[8:0]
A9RP
WRN
RASN
UCASN
LCASN
SICEENP
SREQ
SDATP[7:0]
SERR
SSTRP/LRCLKP
SSST/DACLKP
SVAL/ADOP
SREQ
SDATP[7:0]
SERR
SSTRP/LRCLKP
SSST/DACLKP
SVAL/ADOP
OVCLKP
DDOP
SCANMODP
SCANENP
IDDTN
ICPTNUN
TESTP
SCLKRSTN
MRSTN
DSPRSTIN
DSPRSTON
SCANENP
IDDTN
ICPTNUN
TESTP
SCLKRSTN
MRSTN
DSPRSTIN
DSPRSTON
DVDD[12:0]
DVSS[12:0]
DVSS[12:0]
RF
interface
(15)
interface
(15)
PLL
interface
(9)
interface
(9)
DRAM
interface
(31)
interface
(31)
Source
Decoder
interface
(14)
Decoder
interface
(14)
SPDIF
(1)
(1)
Reset/Test
interface
(9)
interface
(9)
Digital
Power
Supply
(26)
Power
Supply
(26)
Audio
DAC
interface
(4)
DAC
interface
(4)
ADC
interface
(15)
interface
(15)
DAC
interface
(4)
interface
(4)
Servo
Digital I/O
(27)
Digital I/O
(27)
Host CPU
interface
(25)
interface
(25)
L64060
DVD-Player
Front-End
Engine
*1: 30, 43, 50, 59, 71, 83, 90, 103, 115, 128, 142, 160, 170pin
*2: 29, 44, 49, 60, 72, 84, 89, 104, 116, 129, 143, 161, 171pin
*2: 29, 44, 49, 60, 72, 84, 89, 104, 116, 129, 143, 161, 171pin
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