Haier 21F3A-T Service Manual

Also see for 21F3A-T: Owner's manual Specifications

Contents

Haier 21F3A-T Service Manual Manual pdf 17 page image

Maintenance Service and Trouble shooting10. Maintenance Service and Trouble shootingA. Principle integrated circuitsA1. 21F3A-T color TV set composed of the following sections(1) Small signal processing: super monolithic integrated circuits N204(TMPA8823CSN).and memory N901 (AT24C08).(2) Sound power amplifying: integrated circuits N701 ( TDA2611).(3) Horizontal and Vertical scan output circuits: Vertical output integrated circuits N402(LA7840), Horizontal output transistor V411 (2SD1879), Horizontal flying backtransformer T402 (JF0501-19910).(4) Switch power supply: switch transformer T501 (BCK-08A6F), power transistorV503 (2SC4236).(5) AV switch integrated circuits N203 (TC4053).A2. Main integrated circuits:(1) TMPA8823CSN MicroprocessorPicture IF/sound IF/video processing/H and VScan/color decoding(2) LA7840 Vertical output integrated circuits(3) TDA2611 Sound power amplifying integrated circuits16