Samsung PDP4294X/SMS, Service Manual

Page: 51 / 104

Circuit Operation Description
Samsung Electronics 5-37
Name
LVDS Connector
Operation LED
I 2 C Connector
256k
Y Connector
X Connector
CN401
(E-Address Buffer Connector)
CN402
(F-Address Buffer Connector)
CN403
(G-Address Buffer Connector)
Power Connector
Power Fuse
Receives LVDS-encoded RGB,H,V,DATAEN, and DCLK input from
video board.
Shows whether the Sync and Clock signals are entering the logic board normally.
(Normal status: blinks once every second)
Connects the key scan board which checks and adjusts the 256K data.
EEPROM which saves the gamma table, APC table, drive waveform timings and
other options.
Outputs the Y drive board control signals.
Outputs the X drive board control signals.
Outputs the address data and control signals to the E-buffer board.
Outputs the address data and control signals to the F-buffer board.
Outputs the address data and control signals to the G-buffer board.
Receives the power input (5V) for the logic board.
Fuse attached to the power input part (5V) of the logic board.
Function
NO
1
2
3
4
5
6
7
8
9
10
11
5-5-1 (C) Name of the Major Parts of the Logic Board and Terminology
④