HP vf15 / FP15 / f1523 / FP5315 free download

File name HP-LCD-Monitor-vf15-FP15-f1523-FP5315.pdf

Service Manual 15-inch LCD Monitor vf15 / FP15 / f1523 / FP5315 Service Manual Versions and Revision N o. 1. Ve rs ion 1.0 R e le as e D ate Mar 17, 2003 R e vis ion O riginal release Copyright Copyright 2003 LiteOn Technology Corp. All Rights Reserved This manual may not, in whole or in part, be copied, photocopied, reproduced, translated, or converted to any electronic or machine readable form without prior written permission of LiteOn Technology Corp. vf15 / FP15 / f1523 / FP5315 Service Manual. Trademarks LiteOn is a registered trademark of LiteOn Technology Corp. All other trademarks are the property of their respective owners. vf15 / FP15 / f1523 / FP5315 1) Circuit 1. 2. 3. 4. 5. 6. 7. 8. 9. Power board operation therory ---------------------------------------------------------------------------------------------- 3 Inverter -------------------------------------------------------------------------------------------------------------------------- 4 Power supply ------------------------------------------------------------------------------------------------------------------- 5 On-screen circuit--------------------------------------------------------------------------------------------------------------- 5 Video input circuit ------------------------------------------------------------------------------------------------------------- 5 Definition converter LSI peripheral circuit --------------------------------------------------------------------------------- 5 System reset, LED control circuit -------------------------------------------------------------------------------------------- 5 E2PROM for PNP --------------------------------------------------------------------------------------------------------------- 6 E2PROM ------------------------------------------------------------------------------------------------------------------------- 6 10. CPU circuit ---------------------------------------------------------------------------------------------------------------------- 6 10.1 Dection of POWER switch status ------------------------------------------------------------------------------------- 6 10.2 Display mode identification -------------------------------------------------------------------------------------------- 6 10.3 User control --------------------------------------------------------------------------------------------------------------- 7 10.4 Control of identification converter LSI (IC306) ---------------------------------------------------------------------- 8 10.5 Power ON sequence ----------------------------------------------------------------------------------------------------- 9 10.6 Power OFF sequence -------------------------------------------------------------------------------------------------- 10 11. Audio Circuit ----------------------------------------------------------------------------------------------------------------- 11 2) Trouble shooting 1. 2. 3. 4. 5. 6. 7. No display of screen (Screen is black,