Samsung PS-50Q7HD, Service Manual

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Circuit Description
13-8 Samsung Electronics
Item Name Explanation
①
LVDS Connector
The connector to receive LVDS-encoded RGB, H, V, DATAEN and DCLK signals from the
Video Board.
②
Power Connector The connector to receive power (5V) and the control signal for the Logic Board.
③
Communications Connector
The connector to connect the keyscan, which adjusts the pattern and registry values, the
window manager and the 512K loading board.
④
V-TOGG V-SYNC Out pin.
⑤
DDR MEMORY (MENCON) Memory for saving address output data.
⑥
DDR MEMORY (SFP) Memory for saving DRIVE output and FRAME DELAY data.
⑦
ASIC CHIP The Main Processor that generates and outputs the logic drive signal and address data.
⑧
Y Connector The connector to output the Y Drive Board control signal.
⑨
Operating Status LED
The LED that shows if the Sync and Clock signals are normally applied to the Logic Board.
(Normal Condition: Blinks at a 0.5 second interval)
For an initial drive, LED2001 is on for 2 seconds and LCD2002 blinks at a 0.5 second
interval.
⑩
CN2010, CN2011, CN2012
The connector to output address data and the control signal to the lower E, F and G-buffer
board.
⑪
ARM-PROCESSOR The IC circuit that controls the control signal to drive the Logic Main.
⑫
Micom Loading 5Pin Connector
Initial image option PIN
(CN2009)
: The connector for loading the Micom Drive program (CN2015).
Loads the program in connection with the GA-WRITER.
: Initial image select F/W or BLACK :
Jumper Yes : or Full White, Jumper No : Black
⑬
Main Power Input
The Power Block that receives 5V input from SMPS and outputs 3.3V (L4957AD3.3V
regulator adopted)
⑭
X Connector The connector to output the X Drive Board control signal.
4 3
2 1
4 3
2 1
4 3
2 1