17
AK45 Service Manual
01/12/2003
•
SIF AGC for gain controlled SIF amplifier; single reference QSS mixer able to operate in high performance
single reference QSS mode and in intercarrier mode, switchable via I
2
C-bus
•
AM demodulator without extra reference circuit
•
Alignment-free selective FM-PLL demodulator with high linearity and low noise
•
I
2
C-bus control for all functions
•
I
2
C-bus transceiver with pin programmable Module Address (MAD).
13.13.3.Pinning
SYMBOL PIN DESCRIPTION
VIF1 1
VIF differential input 1
VIF2
2
VIF differential input 2
OP1
3
output 1 (open-collector)
FMPLL
4
FM-PLL for loop filter
DEEM
5
de-emphasis output for capacitor
AFD
6
AF decoupling input for capacitor
DGND
7
digital ground
AUD
8
audio output
TOP
9
tuner AGC TakeOver Point (TOP)
SDA
10
I
2
C-bus data input/output
SCL
11
I
2
C-bus clock input
SIOMA
12
sound intercarrier output and MAD select
n.c.
13
not connected
TAGC
14
tuner AGC output
REF
15
4 MHz crystal or reference input
VAGC
16
VIF-AGC for capacitor; note 1
CVBS
17
video output
AGND
18
analog ground
VPLL
19
VIF-PLL for loop filter
V
P
20
supply voltage (+5 V)
AFC
21
AFC output
OP2
22
output 2 (open-collector)
SIF1
23
SIF differential input 1
SIF2
24
SIF differential input 2
13.14.PI5V330
13.14.1.General Description
The PI5V330 is well suited for video applications when switching composite or RGB analog. A picture-
in-picture application will be described in this brief. The pixel-rate creates video overlays so two or more
pictures can be viewed at the same time. An inexpensive NTSC titler can be implemented by
superimposing the output of a character generator on a standard composite video background.
Summary of Contents for EU2845ST
Page 1: ...SERVICE MANUAL EU2845ST 16 9 CTV NOV03 SERVEU2845 ...
Page 52: ...48 AK45 Service Manual 01 12 2003 14 6 GEOMETRY ADJUSTMENT 4 3 FORMATS 4 3 MODE 16 9 MODE ...
Page 53: ...49 AK45 Service Manual 01 12 2003 16 9 FORMATS AUTO MODE ...
Page 54: ...50 AK45 Service Manual 01 12 2003 REGULAR MODE ...
Page 55: ...51 AK45 Service Manual 01 12 2003 ZOOM 14 9 MODE ...
Page 56: ...52 AK45 Service Manual 01 12 2003 ZOOM 16 9 MODE ...
Page 57: ...53 AK45 Service Manual 01 12 2003 SUBTITLE ZOOM MODE ...
Page 58: ...54 AK45 Service Manual 01 12 2003 FULL MODE ...
Page 59: ...55 AK45 Service Manual 01 12 2003 PANOROMIC MODE ...
Page 60: ...56 AK45 Service Manual 01 12 2003 ...
Page 79: ...58 JVC AK45 Service Manual 01 12 2003 17 CIRCUIT DIAGRAMS 11AK45B5 1 ...
Page 80: ...59 JVC AK45 Service Manual 01 12 2003 11AK45B5 2 ...
Page 81: ...60 JVC AK45 Service Manual 01 12 2003 11AK45B5 3 ...
Page 82: ...61 JVC AK45 Service Manual 01 12 2003 11AK45B5 4 ...
Page 83: ...62 JVC AK45 Service Manual 01 12 2003 11AK45B5 5 ...
Page 84: ...63 JVC AK45 Service Manual 01 12 2003 11TP45B 1 ...
Page 85: ...64 JVC AK45 Service Manual 01 12 2003 11SB107 4 ...
Page 86: ...65 JVC AK45 Service Manual 01 12 2003 11SW01 3 ...
Page 87: ...66 JVC AK45 Service Manual 01 12 2003 11LD13 ...
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