Hitachi L26H01U, L32H01U free download

File name HITACHI 17MB22 Vestel.pdf

No. 0234 L26H01U L32H01U SERVICE MANUAL MANUEL D'ENTRETIEN WARTUNGSHANDBUCH CAUTION: Before servicing this chassis, it is important that the service technician read the "Safety Precautions" and "Product Safety Notices" in this service manual. Data contained within this Service manual is subject to alteration for improvement. Les donnйes fournies dans le prйsent manuel d'entretien peuvent faire l'objet de modifications en vue de perfectionner le produit. Die in diesem Wartungshandbuch enthaltenen Spezifikationen kцnnen sich zwecks Verbesserungen дndern. ATTENTION: Avant d'effectuer l'entretien du chвssis, le technicien doit lire les «Prйcautions de sйcuritй» et les «Notices de sйcuritй du produit» prйsentйs dans le prйsent manuel. VORSICHT: Vor Цffnen des Gehдuses hat der Service-Ingenieur die ,,Sicherheitshinweise" und ,,Hinweise zur Produktsicherheit" in diesem Wartungshandbuch zu lesen. Contents Introduction Tuner Audio Amplifier Stage Power Stage Microcontroller (VCTP) DRX 3961A Serial 64K I2C EEPROM Class AB Stereo Headphone Driver 9. SAW Filter X6966M 10. IC Descriptions 1. 2. 3. 4. 5. 6. 7. 8. 11. Service Menu Settings 12. Software Update Description 13. Block Diagrams 14. Troubleshooting Guide 15. Connectors 16. Concept ICs 17. Replacement Parts 18. Assembly Drawing 19. Schematic Diagrams 20. PCB Layout Diagrams SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT Colour Television August 2007 1. INTRODUCTION 17MB22 Main Board consists of Micronas concept, VCTP as controller. This IC is capable of handling Audio processing, video processing, motion adaptive upconversion(MAU), Scaling-Display processing and FPD control (DPS),unified memory for audio video and Text, 3D comb filter-PC connectivity , OSD and text processing. TV supports PAL, SECAM, NTSC colour standards and multiple transmission standards as B/G, D/K, I/I', and L/L' including German and NICAM stereo. Sound system output is supplying 2x8W (10%THD) for stereo 8 Supported peripherals are: 1 RF input VHF1, VHF3, UHF @ 75Ohm 1 FAV input 2 SCART sockets 1 SVHS input 1 Stereo Headphone input 1 YPbPr 1 PC input 2 HDMI input 1 Stereo audio input for PC speakers. 2. TUNER As the thickness of the TV set has a limit, a horizontal mounted tuner is used in the product, which is suitable for CCIR systems B/G, H, L/ L', I/I', and D/K. The tuning is available through the digitally controlled I2C bus (PLL). Below you will find info on the Tuner in use. 2.1 General description of UV1316: The UV1316 tuner belongs to the UV 1300 family of tuners, which are designed to meet a wide range of applications. It is a combined VHF, UHF tuner suitable for CCIR systems B/G, H, L, L', I and I'. The low IF output impedance has been designed for direct drive of a wide variety of SAW filters with sufficient suppression of triple transient. 2.2 Features of UV1316: Member of the UV1300 family small sized UHF/VHF tuners Systems CCIR: B/G, H, L, L', I and I'; OIRT: D/K Digitally controlled (PLL)