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长虹C2143型彩电只有自动搜索功能而没有手动调谐功能。目前有线电视网传送节目数量大大增加,对于只有32套节目预置的长虹C2143型彩电已不够用,该机在自动搜索时还会重台,即在高频头L段末端与H段始端频率重叠处,在H段与U段频率交叉处共有6套节目出现两次,再加从无线接收的4个台,自动搜索完毕就会有10套节目重复两次。其次是自动搜索对节目存储的顺序没有选择
Changhong C2143 color TV only automatic search function without manual tuning function. At present, the number of programs transmitted by the cable television network has greatly increased. For Changhong C2143 color TV with only 32 sets of programs preset, it is not enough for the automatic search. That is, the end of the L band and the beginning of the H band At the overlapping place, there are 6 sets of programs appearing twice at the intersection of H segment and U segment frequency, plus 4 stations received wirelessly, there will be 10 sets of programs repeated twice automatically after searching. Followed by automatic search on the program stored in the order no choice