Philips Philips BDH4222V BDH4222V-22 BDH4223V-27 [SM] free download

File name Philips_BDH4222V_BDH4222V-22_BDH4223V-27_[SM].pdf

CONFIDENTIAL Issue: 8. Apr .05 Version: 1.0 42" PDP SERVICE MANUAL MODELBDH4222V/00,BDH4222V/22 BDH4223V/27 PANELVVFPF42C128UC51 Collation: Andy Lai CONTENTS 1. IMPORTANT SAFETY PRECAUTIONS ...1-2 2. BLOCK DIAGRAM ...2-5 3. FACTORY & ELECTRONIC ADJUSTMENT ..3-1 4. TROUBLE SHOOTING GUIDES ...4-7 5. SPECIFICATION ...5-8 6. P.C. BOARD TOP VIEW ...6-7 7. ELECTRONIC MODULES LIST ...7-1 8. EXPLODED VIEW ...8-1 9. PACKING OF THE LIST ...9-1 If having any changes, do not do advanced advice. SAFETY PRECAUTIONS VER1.0 1. Before returning an instrument to the customer, always make a safety check of the entire instrument, including, but not limited to, the following items. a. Be sure that no built-in protective devices are defective and/or have been defeated during servicing. (1) Protective shields are provided on this chassis to protect both the technician and the customer. Correctly replace all missing protective shields, including any removed for servicing convenience. (2) When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including, but not limited to, nonmetallic control knobs, insulating fishpapers, adjustment and compartment covers/shields, and isolation resistor/capacitor networks. Do not operate this instrument or permit it to be operated without all protective devices correctly installed and functioning. b. Be sure that there are no cabinet openings through which an adult or child might be able to insert their fingers and contact a hazardous voltage, Such opening include, but are not limited to, (1) spacing between the picture tube and the cabinet mask, (2) excessively wide cabinet ventilation slots, and (3) an improperly fitted and/or incorrectly secured cabinet back cover. c. Leakage Current Hot Check--With the instrument completely reassembled, plug the AC line cord directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a leakage current tester or a metering system that complies with American National Standards Institutes (ANSI) C101.1 Leakage Current for Appliances and Underwriters Laboratories (UL) 478. With the instrument AC switch first in the ON position and then in the OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal parts of the instrument (antennas, handle bracket, metal cabinet, screwheads, metallic overlays, control shafts, etc.), especially any exposed metal par