System Introduction
1-13
1.4.9 Video Memory
Table 1-10
Video RAM Configuration
Item
Specification
DRAM or VRAM
DRAM(EDO type)
Fixed or upgradeable
Fixed
Memory size/configuration
2MB (256K x 16 x 4pcs)
Memory speed
50ns
Memory voltage
3.3V
Memory package
TSOP
1.4.10 Video
Table 1-11
Video Hardware Specification
Item
Specification
Video chip
C&T65555
Working voltage
3.3V
1.4.10.1 External CRT Resolution Support
Table 1-12
Supported External CRT Resolutions
Resolution x Color on
External CRT
CRT Refresh Rate
Simultaneous on
TFT LCD
Simultaneous on
STN LCD
CRT only
Simultaneous
SVGA
SVGA
640x480x16
60,75,85
60
Y
Y
640x480x256
60,75,85
60
Y
Y
640x480x65,536
60,75,85
60
Y
Y
640x480x16,777,216
60,75,85
60
Y
Y
800x600x16
56,60,75,85
60
Y
Y
800x600x256
56,60,75,85
60
Y
Y
800x600x65,536
56,60,75,85
60
Y
Y
800x600x16,777,216
56,60,75,85
60
Y
Y
1024x768x16
60,75,85,86I
60
Y
Y
1024x768x256
60,75,85,86I
60
Y
Y
1024x768x65536
60,75,85,86I
60
Y
Y
1280x1024x16
60,75,86I
60
Y
Y
1280x1024x256
60,75,86I
60
Y
Y
Summary of Contents for 390 Series
Page 15: ...System Introduction 1 3 Figure 1 2 PCB No 96183 1A Mainboard Layout Bottom ...
Page 96: ...2 50 Service Guide 2 3 3 Pin Configuration Figure 2 4 FDC37C67 TQFP Pin Diagram ...
Page 97: ...Major Chips Description 2 51 Figure 2 5 FDC37C67 QFP Pin Diagram ...
Page 102: ...2 56 Service Guide 2 3 6 Block Diagram Figure 2 6 FDC37C67 Block Diagram ...
Page 126: ...2 80 Service Guide 2 5 4 1 Functional Block Diagram Figure 2 10 M38813 Block Diagram ...
Page 128: ...2 82 Service Guide 2 6 2 Pin Diagram Figure 2 11 YMF715 Block Diagram ...
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