Mitac 8080 Service Manual - laptop schematics, notebook ...

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<strong>8080</strong> N/B Maintenance 8.3 VGA Controller Failure LCD No Display P5 U502 Memory Controller Hub Montara-GM P9 P10 U3 I/O Controller ICH4-M There is no display or picture abnormal on LCD although power-on-self-test is passed. TXOUT[0:5]+ TXOUT]0:5]- TXCLKOUT[0,1]+ TXCLKOUT[0,1]+ FPVCC PCIRST#1 +3V 14 PCIRST# 4,5 U2B 74AHC08_V 6 7 R6 10K +3V JL9 C5 0.1µ PCIRST#1 +3V Q6 DTC144TKA F1 mircoSMDC110 DVMAIN 8 7 6 5 D R5 470K Q4 SI4800DY ENBL LID# LCD_ID[0:2] D2 BAW56 2 3 1 SW2 RP6 2.7K*4 +3V +3V Q9 DTC144TKA 2 1 3 Q8 BAW56 R48 10K +5V G LID# S 3 2 1 24 45 C690 0.1µ ENABLE_BKLT BLADJ P20 U504 H8/F3437 C11 10µ +5V VDD5S C12 0.1µ L1 L4 L3 L2 C13 1000P SW2 L5 120Z/100M Transfer Board 120Z/100M 120Z/100M 120Z/100M 120Z/100M C6 0.1µ C7 1000P LCDVCC C4 0.1µ 1,2 J505 P14 Inverter Board 2,3 11 1 4 5,6 LCD Connector J504 P21 Inverter LCD 113
8.4 External Monitor No Display <strong>8080</strong> N/B Maintenance There is no display or picture abnormal on CRT monitor, but it is OK for LCD. External Monitor No Display 1. Confirm monitor is good and check the cable are connected properly. 2. Try another known good monitor. Display OK? No Remove all the I/O device & cable from motherboard except monitor. Display OK? No Yes Yes Replace faulty monitor. Connect the I/O device & cable to the M/B one at a time to find out which part is causing the problem. Board-level Troubleshooting Replace Motherboard No Yes Re-soldering. One of the following parts on the mother-board may be defective, use an oscilloscope to check the following signal or replace the parts one at a time and test after each replacement. Parts: Check if U502, J507 are cold solder? U5 U3 J507 F2 D4 L8 Q501~Q505 L503~L508 Q3 Q515 Q516 Signals: +5V CRT_DDA CRT_HSYNC CRT_VSYNC CRT_DDCK CRT_R CRT_G CRG_B SMB_DATA SMB_CLK CRT_IN 114
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SERVICE SERVICE MANUAL MANUAL FOR F
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Contents 8080 N/B Maintenance 5.3 I
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1.1 Introduction 8080 N/B Maintenan
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8080 N/B Maintenance The NS PC87393
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LAN single chip : VT6105LOM PCMCIA
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8080 N/B Maintenance A high bandwid
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8080 N/B Maintenance - Video Overla
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8080 N/B Maintenance - 8-bit, 16-bi
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HUB Interface for ICH4 8080 N/B Mai
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8080 N/B Maintenance The integrated
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Supports serial interrupt protocol
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Fully programmable through serial p
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32bit PCI Bus-Master Interface 8080
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8080 N/B Maintenance 1.1.2.10 PCMCI
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1.1.2.11 AC”97 Codec _ STAC9750 8
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1.1.2.13 System Flash Memory (BIOS)
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1.2 Other Functions 1.2.1 Hot Key F
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1.2.4 LED Indicators 8080 N/B Maint
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1.2.6 Fan Power On/Off Management 8
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1.3 Peripheral Components 1.3.1 LCD
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Software configurable Low weight Op
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1.4.1.3 Standby Mode 8080 N/B Maint
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8080 N/B Maintenance 1.5 Appendix 1
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Continued to the previous table Aud
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2.1.3 Right-side View 1 2 3 4 2.1.4
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2.2 System Disassembly 8080 N/B Mai
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2.2.1 Battery Pack Disassembly 8080
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2.2.3 CPU Disassembly Figure 2-4 Re
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8080 N/B Maintenance 7. Loosen the
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8080 N/B Maintenance 5. Unscrew fou
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2.2.6 DDR SDRAM Disassembly 8080 N/
Page 63 and 64: 8080 N/B Maintenance 6. Carefully t
Page 65 and 66: Reassembly 8080 N/B Maintenance 1.
Page 69 and 70: 8080 N/B Maintenance 6. Carefully,
Page 73 and 74: 2.2.12 Touch Pad Disassembly 8080 N
Page 75 and 76: 3.1 Main Board (Side A) - 1 8080 N/
Page 77 and 78: 8080 N/B Maintenance 3. Definition
Page 79 and 80: 8080 N/B Maintenance 4. Definition
Page 81 and 82: 8080 N/B Maintenance 5. Pin Descrip
Page 83 and 84: 5.1 Intel Pentium M Processor Signa
Page 85 and 86: 8080 N/B Maintenance 5.2 Intel 8285
Page 99 and 100: 6. System Block Diagram U17 CardBus
Page 101 and 102: 7.2 Error Codes Code 10h 11h 12h 13
Page 103 and 104: 7.3 Debug Tool 8080 N/B Maintenance
Page 105 and 106: 8.1 No Power No Power Is the notebo
Page 107 and 108: POWER IN P20 U504 PJ501 Micro Contr
Page 109 and 110: 8.1 No Power P20 U504 Micro Control
Page 111 and 112: 8.2 No Display +3V L517 L513 L14 L9
Page 113: 8080 N/B Maintenance 8.3 VGA Contro
Page 117 and 118: 8.5 Memory Test Error Extend DDRAM
Page 119 and 120: 8080 N/B Maintenance 8.6 Keyboard (
Page 121 and 122: 8.7 Hard Drive Test Error Hard Driv
Page 123 and 124: 8.8 CD-ROM Drive Test Error 8080 N/
Page 125 and 126: 8.9 USB Test Error 8080 N/B Mainten
Page 127 and 128: 8.10 Audio Failure Audio Failure 1.
Page 129 and 130: AOUT_R C326 4.7µ From previous pag
Page 131 and 132: P18 U17 PCMCIA Controller CB710 P9
Page 133 and 134: P9 U3 I/O Controller Hub 82801DBM I
Page 135 and 136: P9 8.13 IEEE 1394 Failure +3V L19 1
Page 137 and 138: 9. Spare Parts List - 2 Part Number
Page 145 and 146: 9. Spare Parts List - 10 Part Numbe
Page 147 and 148: 9. Spare Parts List - 12 Part Numbe
Page 150 and 151: 5 8080_R03 Project Code : G038 5 4
Page 152 and 153: 5 5 4 4 3 3 2 2 1 1 D D C C B B A A
Page 154 and 155: 5 Maximum length less than 0.5" fro
Page 158 and 159: GND 5 5 Dedicate for USB2.0 can't u
Page 162 and 163: 12 AOUT_R 5 5 C326 C327 R645 AOUT_R
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VT6307L IDSEL: AD21 PCI REQ0# PCI G
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5 5 4 4 3 10 USBP0- J510 B L39 +VCC
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5 5 4 4 3 U510 20,21 SA[0..17] SA0
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5 5 4 4 3 +5V D 1 3 SW8 2 4 KI6 KI6
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5 5 4 4 3 D D BAV70LT1 BAV70LT1 PJ5
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A
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5 5 4 4 3 D D 1 2 GND 1 2 PC86 1000
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5 5 4 4 3 D D VID[0..5] +5V_P VID0
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A
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5 5 4 4 3 3 2 2 1 1 D D C C B B A A
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