Abstract: A device with a PCB with forced airflow has a housing including a first panel (141) and a second panel (142). Within the housing is mounted a printed circuit board (111) with heat dissipating elements, an opening (112), a first surface (131) and a second surface (132). The first surface (131) of the printed circuit board (111) is located at a distance from the first panel (141) smaller than a distance between the second surface (132) and the second panel (142). To the printed circuit board (111) is mounted a fan (113) that covers the opening (112) and forces airflow from a space between the first surface (131) and the first panel (141) to a space adjacent the second surface (132).

Abstract: A device with a PCB with forced airflow has a housing including a first panel (141) and a second panel (142). Within the housing is mounted a printed circuit board (111) with heat dissipating elements, an opening (112), a first surface (131) and a second surface (132). The first surface (131) of the printed circuit board (111) is located at a distance from the first panel (141) smaller than a distance between the second surface (132) and the second panel (142). To the printed circuit board (111) is mounted a fan (113) that covers the opening (112) and forces airflow from a space between the first surface (131) and the first panel (141) to a space adjacent the second surface (132).

Abstract: A set of printed circuit boards consists of a main board with at least one fragment intended for replacement and at least one replacement board, wherein said main board has openings in the dielectric layer placed along the edge line of the fragment intended for replacement, and between the openings there are bridges, and at least one of said bridges has an electric conductor thereon, and the replacement board has electric conductors in places matching the placement of the electric conductors of said bridges of the main board.

Abstract: A printed circuit board with at least one shielded path placed on an outer layer of the board is provided with a shield composed of SMD elements (215) and shielding paths and/or planes, placed at both sides along the shielded path. The shielding paths or planes (213, 214) are connected to the ground, and the SMD elements (215) create a line of SMD elements, which are placed over the shielded path (212), and whose contacts, (216, 217) extending beyond the shielded path (212), are connected with the shielding paths or planes (213, 214), placed at both sides of the shielded path (212).

Abstract: A system for management of decoding devices consists of at least one slave decoding device (112, 113) and a master decoding device (111). A master remote control unit (a master RCU) (121) controls slave decoding devices (112, 113) and the master decoding device (111) and is assigned individually to the master decoding device (111). At least one slave remote control unit (a slave RCU) (122, 123) controls individually assigned one slave device (112, 113). Each slave decoding device (112, 113) of the system includes a controller (207) controlling operation of a signal processing block (203). The controller (207) includes a timer (208) and a command analyzer (209). The timer (208) is used for defining the time of transition from a normal mode to a waiting mode of the slave decoding device (112, 113) and from the waiting mode to an inactive mode. The command analyzer (209) is used for recognizing commands of the master RCU (121), which cause a transition of the slave decoding device (112, 113) to the normal mode.

Abstract: A set of printed circuit boards consists of a main board with at least one fragment intended for replacement and at least one replacement board, wherein said main board has openings in the dielectric layer placed along the edge line of the fragment intended for replacement, and between the openings there are bridges, and at least one of said bridges has an electric conductor thereon, and the replacement board has electric conductors in places matching the placement of the electric conductors of said bridges of the main board.