新型TCL彩电维修技巧

                        维修案例                                      编号            厂商名称            产品型号            故障现象            故障原因            位号            维修方案            备注            机芯名称                            178            tcl            hid432b.r,hid4326,hid4329e,hid5229e,hid525,hid522b.r,rpt4301m,prt4302m,rpt43a6,hid435b.r,hid435,hid436b.r,hid525b.r,hid526b.r,hid4328g,hid5228g,hid5226            三无            故障在此路保护电路中。 后查到r8013由3.3ω变为1k。更换后故障消失。            r8013            更换                                                    179            tcl            hid432b.r,hid4326,hid4329e,hid5229e,hid525,hid522b.r,rpt4301m,prt4302m,rpt43a6,hid435b.r,hid435,hid436b.r,hid525b.r,hid526b.r,hid4328g,hid5228g,hid5226            三无            供电或输出级有短路现象，检查其外围电路发现d8026被击穿。            d8026            更换                                                    180            tcl            hid432b.r,hid4326,hid4329e,hid5229e,hid525,hid522b.r,rpt4301m,prt4302m,rpt43a6,hid435b.r,hid435,hid436b.r,hid525b.r,hid526b.r,hid4328g,hid5228g,hid5226            三无            首先查+b负载，发现q3002被击穿。更换后，恢复正常。            q3002            更换                                                    181            tcl            hid432b.r,hid4326,hid4329e,hid5229e,hid525,hid522b.r,rpt4301m,prt4302m,rpt43a6,hid435b.r,hid435,hid436b.r,hid525b.r,hid526b.r,hid4328g,hid5228g,hid5226            三无            考虑到主板与扫描板用了排线连接，有可能松动，将其重插后，机器恢复正常。            扫描板用排线            重插        

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