Philips philips chassis ptv500 series free download

File name philips_chassis_ptv500_series.pdf

Philips Consumer Electronics Company A Division of North American Philips Corporation In-Home Service Guide Projection Television PTV500 Series 1993 PTV500 CHASSIS IN-HOME TROUBLESHOOTING GUIDE CONTENTS Subjects ... Page SECTION 1 General: Servicing and Safety Precautions ... 3 Introduction ... 4 Signal Flow ... 5 PTV Power Supply Module ... 6 Shutdown Circuitry ... 7 SECTION 2 Troubleshooting the PTV System: Access ... 9 Diagnostic LEDs of the Power Supply ... 9 Deflection Failures, Video Blanking, and High Voltage Shutdown ... 10 Video Troubles ... 11 SECTION 3 In-Home Adjustments: Ground Connections For Test Equipment ... 12 Unless Otherwise Specified: ... 12 On-Screen Menu Positioning ... 12 RF AGC Delay ... 12 VCO & AFT Adjustment ... 13 Sound Alignment ... 14 Sub-Contrast Alignment ... 14 Comb Filter Alignment ... 14 Sub-Brightness Adjustment ... 14 Dynamic Gamma ... 15 High Voltage Frequency Adjustment ... 15 Video Level Alignment ... 15 Vertical Height Adjustment ... 16 Vertical Blanker Adjustment ... 16 130Vdc Adjust ...