Panasonic VL-SWD272BX Service Manual page 14

VL-SWD272BX/SWD272CX/SWD272CX1/SWD272AZ/VL-WD613CX/VL-WD613CX1
4.2.1.2.4. Video/Timer/LCDIF/TSP Part
OP AMP for LCD_BL Circuit (IC270)
Operating Power Supply : +3.3V
Package: 8pin SSOP-8
Outline of Operation: Control of LCD_BL current.
4.2.1.2.5. DPJP3 Part
DPJP3 (IC100)
Operating Power Supply : +1.2V +3.3V
Package: 216pin LQFP216
Package: 26 x 26 mm
Outline of Operation: Video signal processing/Part of LCD
and the other control.
System clock frequency: 27MHz
SDRAM(IC300)
Operating Power Supply: +1.2V +3.3V
Package: 54pin TSOP II
Memory capacity: 128Mbit
Outline of Operation: Work area of IC100.
Timer (IC390)
Operating Power Supply : +3V
Package: 8pin SNT-8A
Outline of Operation: timer of IC100.
System clock frequency: 32.768KHz (X790).
FLASH MEMORY(IC350)
Operating Power Supply: +3.3V
Package: 8pin SOIC
Memory capacity: 128Mbit
Outline of Operation: Storing the program of IC100.
14