VK-S274R/S274ER is a color chassis video camera; VK-K274R/K274ER is a Black-and-white chassis
video camera: All these models incorporate an optical 22-power compact zoom lens.
Models VK-S274R/S274ER/K274R/K274ER are successor cameras to VK-S274/S274E/K274/K274E.
The signal process circuit is equipped with a digital signal processor (D.S.P.5) that is the same as
that of VK-S274/S274E/K274/K274E.
The external appearance is identical to VK-S274/S274E/K274/K274E.
2-1-1 Servicing method
Table 2-1-1 shows the method for servicing each circuit board.
Refer to "4 Troubleshooting" for the method of judging defects in each circuit board.
These servicing methods are subject to change without notice for the purpose of facilitating service
Table 2-1-1 Circuit Board Servicing Method
CSR circuit board
PC circuit board
SP circuit board
Built-in Optical Power Zoom Lens
A highly reliable optical 22-power zoom lens is mounted, and it is equipped with auto-focus and auto
12-Power Digital Zoom Function
The 12-power digital zoom, combined with the 22-power optical zoom, makes possible up to 264-
Remote Control via RS-232C
Focus, iris and zoom can be remotely operated via RS-232C.
External Synchronization with AC-Line Pulse Signal
This chassis camera is compatible with external sync using AC-line pulse signal, as well as with
2 - 1
Fig. 2-1-1 Locations of Circuit Boards