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1.5M10机心。相关彩电型号:2922DP、29TFDP、29TGDP、3498DP、34SDDP、34SLDP、34NLDP、29TJDP、29TIDP (1)字符抖动,AV状态时出现亮线。解决方法是:可把CPU场脉冲输入脚的电容适当加大或减小容量。 (2)彩色中有竖条干扰。解决方法是:进入维修状态,将总线数据2C改写为29C,29D改为29E,29F改写为2A0。 (3)在TV模式时,视频输出信号幅度不够。解决方法是:将存储器地址286H的数据由66改写为77。 (4)图像扭曲。解决方法是:将TDA9808的④脚(PLL环路滤波)外接电阻R121(180Ω)改为1kΩ左右。 2.4S02机心。相关彩电型号:2108—3008、2188—3008、2198—3008、2140—3008
1.5M10 movement. Related TV models: 2922DP, 29TFDP, 29TGDP, 3498DP, 34SDDP, 34SLDP, 34NLDP, 29TJDP, 29TIDP (1) Character jitter, bright lines appear in the AV state. The solution is: CPU field pulse input pin can be appropriate to increase or decrease the capacity of the capacitor. (2) There are vertical bars in color interference. The solution is: enter the maintenance state, the bus data 2C rewritten as 29C, 29D changed to 29E, 29F rewritten as 2A0. (3) In the TV mode, the video output signal amplitude is not enough. The solution is to rewrite the data at memory address 286H from 66 to 77. (4) image distortion. The solution is: the TDA9808 ④ pin (PLL loop filter) external resistor R121 (180Ω) to about 1kΩ. 2.4S02 movement. Related TV models: 2108-3008,2188-3008,2198-3008,2140-3008