Pioneer PRO-700HD, Руководство по обслуживанию

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PRO-700HD
236
Pin No.
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Pin Name
SCL
SDA
VSS D2
VDD D2
VDD A1
(R-Y)
VSS A1
VSS A2
(B-Y)
VDD A2
VSS A2
Y
VDD A3
CUR
VDD A4
C UV
REF L UV
Function
I 2 C-bus clock line
I 2 c-bus data line
Digital ground 2(0V)
+5V digital supply voltage 2
+5V analog supply voltage for buffer of DAC 1
± (R-Y) output signal (analog signal)
Analog ground 1(0V)
Analog ground 2(0V)
± (B-Y) output signal (analog colour-difference signal)
+5V analog supply voltage for buffer of DAC 2
Analog ground 3 (0V)
Y output signal (analog luminance signal)
+5V analog supply voltage for buffer of DAC 3
Current input for analog output buffers
Supply and reference voltage for the three DAC S
Capacitor for chrominance DAC S (high reference)
Low reference of chrominance DAC S (connected to VSS A1)
7
TDA8755T (SUB VIDEO ASSY: IC4703)
VIDEO A/D CONVERTER
¶
Pin Assignment
¶
Block Diagram
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 23
24
31
32
V
CCA
V
CCD
V
CCO
AGND DGND SDN N.C. REG1 REG2 REG3
D0
D7
HREF
CE
CLK
D'0
D'1
D'2
D'3
V
U
Y
INY
CLPY
CLP
INU
CLPU
CLPV
INV
SUPPLY AND REFERENCE
VOLTAGE REGULATOR
CLAMP
LOGIC
CLAMP
V
CLAMP
U
TRACK
AND
HOLD
DIGITAL
MULTIPLEXER
ANALOG
MULTIPLEXER
TRACK
AND
HOLD
TRACK
AND
HOLD
COMPARATOR
128
8-bit
ADC
8-bit
ADC
U AND V
DATA
ENCODER
TTL
I / O
TTL
I / O
TDA8755
TIMING GENERATOR
CLAMP
Y
COMPARATOR
16
TRACK
AND
HOLD
8-bit
PIPELINE
8
8 8
8
8
2
2
2
2
19
20
21
22
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32 N.C.
REG1
INY
REG2
CLPY
INU
SDN
INV
AGND
CLPU
CE
CLP
HREF
CLPV
REG3
DGND
CLK
D7
D6
D5
D4
D3
D2
D1
D0
D'3
D'2
D'1
D'0
V
CCA
V CCO
V
CCD
TDA8755T
I/O
I
I
—
—
—
O
—
—
O
—
—
O
—
I
—
I
I