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

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8.11 LAN Test Error LAN Test Error 1.Check if the driver is installed properly. 2.Check if the notebook connect with the LAN properly. Test OK? An error occurs when a LAN device is installed. No Check if BIOS setup is ok. Re-test OK? No Yes Yes Correct it. Correct it. 8080 N/B Maintenance Board-level Troubleshooting Replace Motherboard Check the following parts for cold solder or 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: Signals: U3 U15 U17 U16 U11 J515 Q24 Q20 U2 L26 L27 X4 +LAN_A2.5V +LAN_D2.5V CARD_RI# PCICLK_LAN PCIRST# IN_PIRQE# PCI_REQ1 PCI_FRAME# PCI_DEVSEL# PCI_TRDY# PCI_IRDY# PCI_PME# PCI_STOP# PCI_GNT1# PCI_PAR AD[0:31] CBE#]0:3] RXIN+ RXIN- TXD+ TXD- EECS EESK EEDI EEDO 129
P18 U17 PCMCIA Controller CB710 P9 U3 I/O Controller Hub 82801DBM ICH4-M 8.11 LAN Test Error CARD_RI# An error occurs when a LAN device is installed. C316 0.1µ +3V_P +3V 14 PCIRST# 4,5 U2B 6 74AHC08_V 7 INT_PIRQE#, PCI_REQ1# PCI_FRAME#, PCI_DEVSEL# PCI_TRDY#, PCI_IRDY# PCI_PME#, PCI_STOP# PCI_GNT1#, PCI_PAR AD[0:31], CBE#[0:3] Q24 DTC144WK Q20 DTC144WK JL10 LAN_WAKE 112 PCICLK_LAN From U4 Clock Generator +3V +LAN_D2.5V R303 2.2 C311 0.1µ LAN_PCIRST# RP1,RP2,RP4 R150,R153 8.2K*4 8080 N/B Maintenance 43 115 114 113,118 15,19 18,17 119,21 117,23 VCCRAM WOL P16 U15 LAN Controller VT6105-LOM 50 58 57 54 104 105 108 109 94 95 EECS EESK EEDI EEDO RXIN+ RXIN- TXD+ TXD- LANX1 LANX2 C284 22P 1 2 3 4 U16 NM93C46 CS SK DI DO +LAN_A2.5V R245 49.9 R246 49.9 3 2 4 X4 25MHZ P16 1 VCC GND L28 120Z/100M R243 49.9 C279 22P 8 5 +3V_P C290 1µ R244 49.9 L26 PLP3216S 2 1 3 4 2 L27 PLP3216S +LAN_D2.5V +2.5V_DDR L33 120Z/100M 1 3 4 C273 0.1µ 1 2 7 8 3,6 C298,C308 0.1µ +2.5V_DDR +LAN_D2.5V +2.5V_DDR +LAN_A2.5V P16 U11 LF-H80P 16 15 10 9 14 11 R229 75 R230 75 +LAN_A2.5V L34 120Z/100M C286,C288,C296 0.1µ C287,C293 2.2µ PJRX+ PJRX- PJTX+ PJTX- C233 1000P R222 75 R224 75 PJ7 PJ4 6 P16 3 8 7 1,2 4,5 J515 RJ45 LAN Connector 130
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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/
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8080 N/B Maintenance 6. Carefully t
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Reassembly 8080 N/B Maintenance 1.
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8080 N/B Maintenance 6. Carefully,
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2.2.12 Touch Pad Disassembly 8080 N
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3.1 Main Board (Side A) - 1 8080 N/
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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 and 114: 8080 N/B Maintenance 8.3 VGA Contro
Page 115 and 116: 8.4 External Monitor No Display 808
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: AOUT_R C326 4.7µ From previous pag
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
Page 164 and 165: VT6307L IDSEL: AD21 PCI REQ0# PCI G
Page 166 and 167: 5 5 4 4 3 10 USBP0- J510 B L39 +VCC
Page 168 and 169: 5 5 4 4 3 U510 20,21 SA[0..17] SA0
Page 170 and 171: 5 5 4 4 3 +5V D 1 3 SW8 2 4 KI6 KI6
Page 172 and 173: 5 5 4 4 3 D D BAV70LT1 BAV70LT1 PJ5
Page 176 and 177: 5 5 4 4 3 D D 1 2 GND 1 2 PC86 1000
Page 178 and 179: 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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SERVICE MANUAL FOR 8080 Sponsoring
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