Read Sharp XV-C2E (serv.man4) Service Manual online
XV-C2E
33
5. IC4302 (VHiCXD2443Q-1) Timing generator
1) Block Diagram
PHASE
COMPARATOR
COMPARATOR
FIELD & LINE
CONTROLLER
CONTROLLER
LOOP
FILTER
FILTER
PULSE ELIMINATOR
SERIAL I/F
V-SYNC SEPARATOR
H-SYNC DETECTOR
V-CONTROL COUNTER
H-SYNC DETECTOR
PHASE
COMPARATOR
COMPARATOR
PLL COUNTER2
DECODER
DECODER
&
V-TIMING PULSE
GENERATOR
DECODER
&
H-TIMING PULSE
GENERATOR
V-POSITION COUNTER
H-POSITION COUNTER
DOUBLE SCAN
CONVERTER
CONVERTER
PLL COUNTER
DECODER
RPD1
9
RPD2 87
RPD3 93
FPD1
6
FPD2 84
FPD3 96
HSYNC 13
VSYNC 14
VST 34
FLDO 21
VWA 30
VWB
2
PWM1
8
PWM2
86
PWM3
95
PEO1
7
PEO2
85
PEO3
94
HDR
100
HSTA
43
HCK1A
38
HCK2A
37
ENB
36
VCK
35
FRP
49
XFRP
50
PCG1
31
XCLP1
47
XCLP2
48
PCG2
46
SH1A
51
SH2A
52
SH3A
55
SH4A
56
SH5A
57
SH6A
58
SH7A
59
HSTB
42
HCK1B
41
HCK2B
39
SH1B
61
SH2B
62
SH3B
63
SH4B
64
SH5B
66
SH6B
67
SH7B
68
TC3
97
TC2
83
TC1
5
CKI3
92
CKI5
99
CKO3
91
HD
CKSL
98
SCTR 16
SCLK 17
SDAT 18
PRE 19
RPD4 76
FPD4 77
TC4
CLOCK2
TEST: 12, 20, 22, 23, 24, 25, 26, 27, 33, 60, 69
V
V
DD
:
3, 28, 53, 78
V
SS
:
4, 15, 29, 40, 54, 65, 79, 90
LOOP
FILTER
FILTER
DIRECT
CLEAR
CLEAR
82
WCK
72
RSTW
73
RSTR
71
XRGT
45
DWN
32
RGT
44
RCK
70
CKI4
75
CKO4
74
PEO4
80
CKI2
89
CKO2
88
16:9
MASTER CLOCK
CKI1
11
CKO1
10
4:3
PWM4
81
XCLR
1
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