Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 79
SDI PDP 2K6
9.
9.
Circuit Descriptions, Abbreviation List, and IC Data Sheets
Index of this chapter:
9.1 Main function of Each Assembly
9.2 Abbreviation List
9.3 IC Data Sheets
9.1
Main function of Each Assembly
9.1.1
X Main Board
The X Main board generates a drive signal by switching the
FET in synchronization with logic main board timing, and
supplies the X electrode of the panel with the drive signal
through the connector.
1.
Maintain voltage waveforms (including ERC).
2.
Generate X rising ramp signal.
3.
Maintain Ve bias between Scan intervals.
9.1.2
Y Main Board
The Y Main board generates a drive signal by switching the
FET in synchronization with the logic Main Board timing and
sequential supplies the Y electrode of the panel with the drive
signal through the scan driver IC on the Y-buffer board. This
board connected to the panel’s Y terminal has the following
main functions.
1.
Maintain voltage waveforms (including ERC).
2.
Generate Y-rising Falling Ramp.
3.
Maintain V scan bias.
9.1.3
Logic Main Board
The Logic Main board generates and outputs the address drive
output signal and the X,Y drive signal by processing the video
signals. This Board buffers the address drive output signal and
feeds it to the address drive IC (COF module, video signal- X Y
drive signal generation, frame memory circuit / address data
rearrangement).
9.1.4
Logic Buffer (E, F)
The Logic Buffer transmits data signal and control signal.
9.1.5
Y Buffer Board (Upper, Lower)
The Y Buffer board consisting of the upper and lower boards
supplies the Y-terminal with scan waveforms. The board
comprises eight scan driver ICs (ST microelectronics STV
7617: 64 or 65 output pins), but four ICs for the SD class.
9.1.6
AC Noise Filter
The AC Noise filter has function for removing noise (low
frequency) and blocking surge. It affects safety standards
(EMC, EMI).
9.1.7
TCP (Tape Carrier Package)
The TCP applies the Va pulse to the address electrode and
constitutes address discharge by the potential difference
between the Va pulse and the pulse applied to the Y electrode.
The TCP comprise four data driver ICs (STV7610A: 96 pins
output pins). Seven TCPs are required for signal scan.
9.2
Abbreviation List
AC
Alternating Current
COF
Circuit On Foil
DC
Direct Current
ERC
Energy Recovery Circuit
ESD
Electro Static Discharge
FET
Field Effect Transistor
FFC
Flat Foil Cable
FPC
Flexible Printed Circuit
FTV
Flat TeleVision
HD
High Definition
I/O
Input/Output
IC
Integrated Circuit
LB
Logic Buffer
LED
Light Emitting Diode
LVDS
Low Voltage Differential Signalling
PCB
Printed Circuit Board (same as PWB)
PDP
Plasma Display Panel
PSU
Power Supply Unit
PWB
Printed Wiring Board (same as PCB)
RGB
Red, Green, Blue colour space
SD
Standard Definition
SDI
Samsung Display Industry (supplier)
SMPS
Switched Mode Power Supply
SSB
Small Signal Board
SF
Sub Field
TCP
Tape Carrier Package
VR
Variable Resistor
Vsc
Scan Voltage
YBL
Y Buffer Lower board
YBU
Y Buffer Upper board
YM
Y Main board
9.3
IC Data Sheets
Not applicable.