Circuit Descriptions; Signal System - Sony JumboTron LDU-1530S Service Manual

3-1. SIGNAL SYSTEM

Balanced
Transmission
RECEIVER
+
From
ICU
_
IC2002
LDU-1530/1540
SECTION 3

CIRCUIT DESCRIPTIONS

+5 V
Input Data
0 V
+ 5 Vp-p
Data
_ 5 Vp-p
Data
Noise mixing in transmission Line
(In-phase mixing in + and _)
+5 V
Output Data
0 V
Input
Transmission
In Image
Line
Control Unit
(ICU)
Fig. 1
A1-11
CGA
D0-11
IC2001
CPO CLK
FILTER
VCO
IC2005
A0-12
D0-7
EEPROM
IC1010
Fig. 2 Signal Block Diagram
+
Output
_
CN Board
Receiver IC
IC2001
A0-19
D0-15
CPU
IC1001
XTAL,EXTAL
SYS CLK
X1003
ADDRESS
DATA
NTSC CLK
CLOCK
X1001
SELECT
PAL CLK
IC1015
X1002
A0-9
DRIVER
D0-9 IOUT0-23
IC1017
CLK
A0-9
DRIVER
D0-9
IOUT0-23
IC1018
CLK
To CELL
A0-9
DRIVER
D0-9 IOUT0-23
IC1019
CLK
X16
A0-9
DRIVER
IOUT0-23
D0-9
IC1032
CLK
3-1(E)