User Guide
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...(LCD), that have special functions in the memory slot. A video controller and 1MB of VRAM enable an external monitor to 16M colors at a resolution of up the Real Time Clock and CMOS memory. Libretto 50CT/70CT Maintenance Manual 1-1 q Memory Standard 16MB of 1.58GB....kit can be installed in Microsoft Windows 95; or 102-key enhanced keyboard. 1 Hardware Overview 1.1 Features 1 1.1 Features The Libretto 50CT/70CT uses Toshiba's advanced Large Scale Integration (LSI) and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to -use 80/82-key keyboard provides:...
...(LCD), that have special functions in the memory slot. A video controller and 1MB of VRAM enable an external monitor to 16M colors at a resolution of up the Real Time Clock and CMOS memory. Libretto 50CT/70CT Maintenance Manual 1-1 q Memory Standard 16MB of 1.58GB....kit can be installed in Microsoft Windows 95; or 102-key enhanced keyboard. 1 Hardware Overview 1.1 Features 1 1.1 Features The Libretto 50CT/70CT uses Toshiba's advanced Large Scale Integration (LSI) and Complementary Metal-Oxide Semiconductor (CMOS) technology extensively to -use 80/82-key keyboard provides:...
User Guide
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q Video RAM • 1 MB, two 256K x 16-bit DRAM chips • 3.3 volt operation • Access time 50 ns Libretto 50CT/70CT Maintenance Manual 1-5 q Standard RAM • 16 MB, eight 1M x 16-bit EDO DRAM chips • 3.3 volt operation • No parity bit ... 70CT: Intel 120 MHz Pentium processor with MMX technology operates at 2.9/3.3 volts and incorporates the math co-processor and 16 KB cache memory. The video controller integrates an LCD/CRT graphics controller, RAMDAC, and clock synthesizers. 1 Hardware Overview 1.2 System Unit Block Diagram The system unit is composed of...
q Video RAM • 1 MB, two 256K x 16-bit DRAM chips • 3.3 volt operation • Access time 50 ns Libretto 50CT/70CT Maintenance Manual 1-5 q Standard RAM • 16 MB, eight 1M x 16-bit EDO DRAM chips • 3.3 volt operation • No parity bit ... 70CT: Intel 120 MHz Pentium processor with MMX technology operates at 2.9/3.3 volts and incorporates the math co-processor and 16 KB cache memory. The video controller integrates an LCD/CRT graphics controller, RAMDAC, and clock synthesizers. 1 Hardware Overview 1.2 System Unit Block Diagram The system unit is composed of...
User Guide
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and controls: the internal keyboard, external keyboard, IPS and PS/2 mouse. 1-6 Libretto 50CT/70CT Maintenance Manual 1.2 System Unit Block Diagram 1 Hardware Overview q System Controller Gate Array This gate array has the following functions: • Two PICs: 82C59 ... interface • PnP support • CPU control − SMI control − Clock speed control • Memory control − 64-bit memory bus control • Video local bus control − 64 to 32-bit, 32 to 64-bit data bus interface • Address latch control − Address conversion − Address latch...
and controls: the internal keyboard, external keyboard, IPS and PS/2 mouse. 1-6 Libretto 50CT/70CT Maintenance Manual 1.2 System Unit Block Diagram 1 Hardware Overview q System Controller Gate Array This gate array has the following functions: • Two PICs: 82C59 ... interface • PnP support • CPU control − SMI control − Clock speed control • Memory control − 64-bit memory bus control • Video local bus control − 64 to 32-bit, 32 to 64-bit data bus interface • Address latch control − Address conversion − Address latch...
User Guide
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This data is then read from black to maximum brightness. Gradation for three seconds. 3-14 Libretto 50CT/70CT Maintenance Manual Each color displays full screen for LCD This subtest displays eight colors: red, semi-red, green, semi-green, blue, semiblue, white, and ... 01 VRAM Read/Write for VGA This subtest displays four colors: red, green, blue, and white from left to right across the screen from the video RAM and compared to the original data. 3.7 Display Test 3 Tests and Diagnostics 3.7 Display Test To execute the Display Test select 4 from the Diagnostic Test Menu...
This data is then read from black to maximum brightness. Gradation for three seconds. 3-14 Libretto 50CT/70CT Maintenance Manual Each color displays full screen for LCD This subtest displays eight colors: red, semi-red, green, semi-green, blue, semiblue, white, and ... 01 VRAM Read/Write for VGA This subtest displays four colors: red, green, blue, and white from left to right across the screen from the video RAM and compared to the original data. 3.7 Display Test 3 Tests and Diagnostics 3.7 Display Test To execute the Display Test select 4 from the Diagnostic Test Menu...