Philips 25gs3-p23~p25(EA) free download

File name 25gs3-p23~p25(EA).pdf

Electrical Adjustments 107P2 CM25 GSIII 23 Go to cover page 0. General 3.Monitor the following auxiliary voltages. When carry-out the electrical settings in many cases a video signal SOURCE ACROSS C2152 and GND. +185.0V +/- 1.5 VDC must be applied to the monitor. A computer with : SOURCE ACROSS C2154 + 82.0V +/- 1.5 VDC. SOURCE ACROSS C2156 - 6.4 V +/- 0.3 VDC. - ATI GPT-1600 (4822 397 10065), Mach 64 (up to 107kHz) SOURCE ACROSS C2160 +13.5V +/- 0.5 VDC. SOURCE ACROSS C2157 - 14.0V +/- 0.5 VDC. are used as the video signal source. The signal patterns are selected from the "service test software" package, see user guide 4822 727 21046 (GPT-1600). 4. General conditions for alignment 0.1 This monitor has 9 factory-preset modes as below. 4.1 During all alignments, supply a distortion free AC mains voltage 1. 640 x 350 31.5 Khz 70 HZ(VESA) to set via an isolating transformer with low internal impedance. 2. 640 x 400 31.5 Khz 70 HZ(VESA) 4.2 Align in pre-warmed condition, at least 30 minutes warm-up with nominal picture brightness. 3. 640 x 480 43.2 Khz 85 HZ(VESA) 4.3 Purity, geometry and subsequent alignments should be carried 4. 800 x 600 46.9 Khz 75 HZ(VESA) out in magnetic cage with correct magnetic field. 5. 800 x 600 53.7 Khz 85 HZ(VESA) 6. 1024 x 768 60.0 Khz 75 HZ(VESA) Northern hemisphere : H=0, V=430 +/- 50 mG, Z=0 7 1024 x 768 68.7 Khz 85 HZ(VESA) Southern hemisphere : H=0, V=-520 +/-50 mG, Z=0 8. 1280 x 1024 80.0 Khz 75 Hz (VESA) 9. 1280 x 1024 91.1 Khz 85 Hz (VESA) 4.4 All voltages are to be measured or applied with respect to ground. 0.2 With normal VGA card: Note: Do not use heatsink as ground. 4.5 Adjust brightness controls to center position except for contrast If not using the ATI card during repair or alignment, The service control which should be set to MAX. engineer also can use this service test software adap