Toshiba 28YT56, Service Manual

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1. Introduction
1.1. Purpose
This document is prepared for the UOC3 TV project and describes the whole system features and
operating principles to be used in hardware design phase.
The document is based on “Device Specification UOCIII-Version 2.5” and “Introducing UOC-III” from
Philips Semiconductors .
1.2. Scope
The document covers detailed descriptions of AK49 chassis system building blocks.
1.3. General Features
AK49 is a 110 ° / 50 Hz. chassis which is capable of driving CRT sizes in the range of 24” – 33”,
including realflat and 16:9 CRT’s . The chassis has the following main features;
• Remote Control
• Colour Standards ; PAL, SECAM, NTSC,
•
Transmission standards ; B/G, L/L’ I/I’, DK,
• Teletex ; 10 pages,
• Intercarier/QSS sound proccessing,
• Multi-standard alignment free PLL tuning,
• PIP, PAP, POP, PAT, TAT ,
• CTI option ,
• 2D Comb Filter ,2D/4H
• Headphone with volume control,
• SubWoofer option,
• 2 Full Scart with SVHS availability via Scart-2 , Scart-3 / BAV, FAV and F_SVHS /B_SVHS,
• BSVM option,
• Dynamic Focus option,
• Rotation (Tilt) option,
• NICAM/GERMAN Stereo,
• Virtual Dolby option,
• 2 x 10W (%10 THD),
• YPbPr input feature,
• TV-DVD Combi ,
•
IDTV ,
• TV-R/HDD,
•
EPG,