笔记本芯片级维修第9课.ppt

第九课 冯小仪主要内容 1 讲解IBMT40主板的待机触发电路图 2 讲解时钟电路的工作原理及维修思路 3 讲解PG RST信号的产生过程及维修思路 主要目的 1 掌握IBMT40主板的待机触发电路图 2 掌握时钟电路的工作原理维修思路 3 掌握PG RST信号的产生过程及维修思路 冯工谈维修 冯工谈维修 PWRSWITCH U28 VCC5M VCC3MON MPWRG PM SLP S5 PM SLP S3 YES NO VCC2R5A U61 VCC3A VCCCPUIO VCC2 5V VCC2R5A ON U30 U29 VCC1R25B U61 VCC3B VCC1R8B VCC5B Q70 VCC1R2B B ON VCCCPUCORE VCORE ON VTT PWRG VCCVIDEOCORE PANEL POWER ON VCC3P U61 Q45 Q22 VBL16 VBL DRV CLK ENABLE U19 VCC1R5B U30 Q31 VCC1R5B DRV U51 Video ON U47 U61 Q88 Q12 VCC3 V VCC1 8 V VIDEO DRV Q42 VCC1 5 V PMH4 PowershutdownThermalshutdown Q99 U23 U5 冯工谈维修 ICH4 H8S TSURUMAI DC DCPWM CPU MCH PMH4 MAINOFF AD3205 CLKGenerator VCC5M VCC3M MPWRG BPWRG PWRSW H8 DC DCSwitch VR PWRGD CLK ENABLE VCORE ON CPURST PCIRST CPUPWRG PM SLP S3 VCC3MVCC5MVCC1R8MVCC1R5MVCC3AUXVCC1R5AUXVCC1R2M VCCCPUCORE VCC3AVCC3BVCC5BVCC1R8BVCC1R5BVCC2 5 VVCC1 5 VVCC1 8 VVCC3 V ICH SLP S4 ICH SLP S3 PWRSWITCH DCINT16V 1 5 4 7 3 2 VCC2R5AVCCCPUIOVCC1R25BVCC1R2BVCCVIDEOCORE 3 7 6 VCC3PVBL16 9 13 12 VTT PWRG 8 A ON B ON Bootup PM SLP S5 9 9 7 10 10 10 11 13 14 CPUCLK CLK100M CPUCLK CLK 100M 冯工谈维修 VCC3M Battery VCC3MVCC5M VCC3MVCC1R5M VCC3BVCC1R5BVCC1R8BVCCCPUIO VCC3AUXVCC1R5AUX VCC3BVCC5B PCIRST ICH4 PWROK BPWRGVGATE VR PWRGD RSMRST MPWRG poweron 冯工谈维修 U19 VGATE VRMPWRG PWROK VCC3MVCC5MVCC1R5MVCC3AUXVCC1R5AUXVCC3BVCC5BVCC1R8BVCCCPUIOVCC1R5B O K VR PWRGD CPUPWRG CPU ICH4 BPWRG U61 CPURST MCH PCIRST CPURSTACTIVE 冯工谈维修 冯工谈维修 PWRSW H8U23pin19 PM SLP S3 U28pin71 outputSuspendtoRAM PM SLP S4 Suspendtodisk PM SLP S5 U28pin72 systemSoftoff A2 ON PMH4U28pin63 VCC2R5A ON VCC2R5AL10pin1outputforDDRDIMMbyMAX1845 B ON PMH4U28pin70 B OND1pin1 CPUIO ONU29pin11 1R25BPOWERL15pin2 outputforRAMbyMAX1845 VCCCPUIOL11pin2 outputforCPUbyMAX1845 VTT PWRGR474pin2 outputforCPUpowercontrolbyCPUI Ook VCORE ON PMH4 VCORE ONU19pin18 VCCCPUCOREL2pin2 outputforCPUbyADP3205 OutputforKBC VCC3BVCC5BVCCIR5BAPWRGBPWRG outputforICH4 PMH4powercontrol TSURUMA MAX1845 MAX1845 ADP3205 MAX1845 Video on pmh4 MAX1845 VCCVIDEOCOREL9ForATIpower POWER SWITCH 冯工谈维修 IBMPOSTCODE START C8 C9 24 04 06 CPU GMCH ICH3 FWH CPU GMCH ICH3 18 FromS4 ICH3SMBUS 08 DF C1 11 0A 17 28 3A 2A 2C 2E GMCH SDRAM 0A 3A 2A 2F ShadowedToRam 38 E0 ICH3 PCI CheckWrap Plug 20 ICH3 SuperIO 29 33 09 2B C1 3B 09 0A CE 3A 0B D1 0F 14 ICH3 H8 1A 1C 22 C8 32 67 9C 6B 34 3C 3D 42 45 47 49 C6 WOL GMCH ICH3 CPU GMCH ICH3 GMCH VGA ICH3 PMH2 C5 48 4A 4C 24 59 CC 55 22 52 54 76 58 3F C4 7C IBMLOGO C6 C9 5B 5C 60 62 64 66 68 6A 6C 6E 7C C6 7E C1 88 8A 81 87 85 82 84 86 83 CE 8C CB CD 90 8B 95 92 B6 IBMsecuritycheck BA 98 BE 96