Toshiba T-Series T3300sl, Maintenance Manual

Page: 14 / 192

1-14
1.6 Sidelit Liquid Crystal Display
The sidelit Liquid Crystal Display (LCD) contains a LCD module, a Fluorescent Lamp (FL), and an
FL inverter board.
1.6.1 LCD Module
The T3300SL sidelit LCD supports 640x480 pixels with the High Resolution Graphics Subsystem
(HRGS) and a 32 levels of gray (at a resolution of 320 x 200). The HRGS includes the functions of
the Video Graphics Array (VGA).
The LCD receives vertical and horizontal synchronizing signals, 8-bit data signals (4-bit upper data
signal, 4-bit lower data signal), and shift clock for data transmission from the PVGA1F Video
Controller. All signals are CMOS-level compatible.
The sidelit LCD is shown in Figure 1-7. Specifications for the LCD are described in Table 1-3.
Figure 1-7 Sidelit LCD
Table 1-3 Sidelit LCD specifications
Item Specifications
Number of dots (dots) 640 x 480
Dot dimension (mm) 0.24(W) x 0.24 (H)
Dot pitch (mm) 0.27 (W) x 0.27 (H)
Display area (mm) 196.0 (W) x 147.06 (H)
Contrast 15:1 (typ.)
FL current (mA) 4.0 to 6.0
FL frequency (KHz) 35 to 43