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(1)图像RF(射频)放大器及彩色修正电路如图65所示,受IC_(402)(CCD可变延迟元件)控制的图像信号,由①脚取出后送入Q_(438)进行放大,然后经过L_(422)、C_(467),和C_(468)构成的低通滤波器(LPF)除去CCD时钟脉冲分量,接着在射随器Q_(435)降低阻抗,以射极作为分支点送到各个电路,主信号通过Q_(432)和Q_(433)由Q_(432)的射极将主信号(Y+C)送到IC_(401)的(30)脚,通过L_(421)、C_(462)和C_(463)组成的3.85MHz陷波器以后只
(1) Image RF Amplifier and Color Correction Circuit As shown in FIG. 65, an image signal controlled by IC 402 (CCD variable delay element) is extracted from pin 1 and sent to Q 438 for amplification. The CCD clock component is then removed via a low pass filter (LPF) consisting of L_ (422), C_ (467), and C_ (468) followed by impedance reduction at the emitter follower Q_ (435) with the emitter as the branch point And the main signal is sent to each circuit through Q_ (432) and Q_ (433) from the emitter of Q_ (432) to the (30) pin of IC_ (401) , C_ (462) and C_ (463) consisting of 3.85MHz after the trap only