Color television receiver `` Horizon C-257 ''.
Color TVsDomesticThe Gorizont Ts-257 television receiver for color images has been produced by the Minsk PO Gorizont since 1984. '' Horizon Ts-257 '' type 2USCT61-9 is a unified stationary color TV of the 2nd class with a screen diagonal of 61 cm. A special feature is the use of large hybrid integrated micro-assemblies of BIGMS. In terms of their functions, they correspond to the modules used in TVs UPIMTsT but small-sized. The TV set is assembled on p / n devices and microcircuits. In the IFA, filters on surface acoustic waves are used. Kinescope type 61LK4Ts is distinguished by high brightness, quick readiness for work. The TV has a modular design with a vertical chassis, where 5 unified modules are fixed: radio channel, color, line and frame scan, power supply. The modules are connected through a separate board fixed to the chassis and connected to them with ribbon cables and connectors. In addition, the TV case contains control units and information, as well as a power filter board. Thanks to the use of a switching power supply, new components and solutions, the weight of the TV is reduced by 18 kg compared to the ULPCT models and by 13 kg with the C-200 and is 37 kg. Power consumption is reduced by more than 2 times compared to the ULPCT. The TV is equipped with automatic adjustments that provide high quality pictures. These are AGC, AFC and F systems, a system for turning off the color channel when receiving b / w images and protecting the power supply in case of short circuit. It is provided to connect headphones and a tape recorder, manually turn off the color channel, adjust the bass and treble tone, turn off the speakers. The choice of any of the tuned 6 programs is made by the SVP-4-10 device on a micro-assembly, which simplified the device, there are 36 elements in it, in the SVP-4-1 unit there are 102 of them. The image size is 362x482 mm. Sensitivity 55 μV. Resolution 450 lines. The frequency range is 80 ... 12500 Hz. Power consumption 120 watts. The first releases of TVs had the index "D" (+ UHF range) in the name, although without the index TVs worked in both ranges. Since 1986, the plant has been producing the Horizon Ts-257-1 TV, which, in terms of design and parameters, except for the design, did not differ from the one described.
