TCL彩电,部分组件板维修流程及方法（国外英文资料）.docVIP

TCL彩电,部分组件板维修流程及方法（国外英文资料） TCL color TV, partial panel repair process and method Author: unknown source: unknown number of clicks: 608 update time: 2006-5-18 Using machine heart AT2175EB/AT2126E AT21E106 / AT2135E this circuit is special, high-frequency head, into the circuit and control circuit of single placed a small box, all components are SMT components only power supply circuit, line field and audio circuit motherboard, because use SMT components to repair cause big trouble, will now be released this heart common fault in the machine are as follows: 1) dont turn on the red light: change the block, change the c012/15p capacitor, switch 32M, and change Q880 / A1015 2) colorless: change c237/474 capacitor, exchange 15 for 4.43 M, change LA76810. 3) search not fall: change C246/0.47 UF, have snow to change high frequency head, 4) automatic search, no platform: replace C207 capacitors, change LA76810, change T201 for the week; 5) the row is not synchronized: LA76810; 6) U channels are not available: the ENGNEER OPTION, which enters the factory menu MENU03, is converted to 1 by 0. The often bad parts of this model are: Dont turn on: ic002.ic001. C011.c03.c03.q880 No room: c207.t201. IC201 Dont get a table: tu100.c246.t201. Colorless: C237. C234. X201. IC201 When its turned on, its not: q806.q805.d833. Horizontal and horizontal lines, linear malleability: C218. IC. 217 TCLs picturesque series of works: CPU board: the light is not turned on: check 5V power supply is normal, check z.1401 voltage is about 1.6 V, no check C1407, C1406; 5V is not normal. 5V normal check IC1401 (normal 4.7 V); Abnormal (check v1401.vd1401.) Normal (check the IC1401.46.47 key to enter the foot voltage to be 4.6 V, normal exchange IC1401; abnormal check, C1421. C1421.r1422.r1422. R1423). Memory block bad: no stage, no search, horizontal line, line center partial, adjust volume time small. Not boot: IC1406, C1407, IC1401, IC1402 No image: IC1402, IC1401, IC1404 Remote control no effect: IC140