Harman Kardon AVR 435, Руководство по обслуживанию

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CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the ADV7172/ADV7173 features proprietary ESD protection circuitry, permanent
damage may occur on devices subjected to high-energy electrostatic discharges. Therefore,
proper ESD precautions are recommended to avoid performance degradation or loss of
functionality.
WARNING!
ESD SENSITIVE DEVICE
36
35
34
33
32
31
30
29
28
27
26
25
13 14 15 16 17 18 19 20 21 22 23 24
1
2
3
4
5
6
7
8
9
10
11
12
48 47 46 45 44 39 38 37 43 42 41 40
PIN 1
IDENTIFIER
TOP VIEW
(Not to Scale)
ALSB
HSYNC
FIELD/
VSYNC
BLANK
GND
V
AA
P0
P1
P2
P3
P4
P5
P6
P7
CSO HSO
V
AA
GND
V
AA
SCLOCK
SDATA
R
SET2
ADV7172/ADV7173
DAC F
COMP1
DAC A
V
AA
DAC B
V
AA
GND
V
AA
DAC C
DAC D
V
AA
GND
DAC E
CLOCK GND V
AA
VSO RESET
PAL
NTSC
CLAMP TTXREQ SCRESET/RTC R
SET1
V
REF
COMP2
GND
TTX
ORDERING GUIDE
REV. B
ADV7172/ADV7173
–2–
FUNCTIONAL BLOCK DIAGRAM
8
8
10-BIT
DAC
R
SET1
COMP1
ADV7172/ADV7173
COLOR
DATA
P0
V
REF
R
SET2
COMP2
P7
DAC E
DAC F
DAC D
DAC A
DAC B
DAC C
BRIGHTNESS AND
CONTRAST CONTROL
+
ADD SYNC
+
INTERPOLATOR
10
LUMA
PROGRAMMABLE
FILTER
+
SHARPNESS
FILTER
SATURATION CONTROL
+
ADD BURST
+
INTERPOLATOR
10
PROGRAMMABLE
CHROMA
FILTER
10
8
8
8
REAL-TIME
CONTROL CIRCUIT
SCRESET/RTC
MODULATOR
+
HUE
CONTROL 10
10
10
10
10-BIT
DAC
10
10-BIT
DAC
10
M
U
L
T
I
P
L
E
X
E
R
Y
U
V
8
4:2:2 TO
4:4:4
INTER-
POLATOR
10 10
SIN/COS
DDS BLOCK
DAC
CONTROL
BLOCK
DAC
CONTROL
BLOCK
10-BIT
DAC
10
10
10
10
10-BIT
DAC
10
10-BIT
DAC
10
M
U
L
T
I
P
L
E
X
E
R
YUV TO
RBG
MATRIX
+
YUV
LEVEL
CONTROL
BLOCK
I
2
C MPU PORT
HSYNC
FIELD/
VSYNC
BLANK
TTX
TTXREQ
V
AA
RESET
TELETEXT
INSERTION BLOCK
YCrCb
TO
YUV
MATRIX
CLOCK
CSO_HSO VSO
CLAMP SCLOCK SDATA ALSB
VIDEO TIMING
GENERATOR
GND
PAL NTSC
Digital PAL/NTSC Video Encoder with Six DACs (10 Bits), Color Control and Enhanced Power Management
AVR435/635 harman/kardon
83