User manual GERICOM 340S2 SERVICE MANUAL

[. . . ] Chapter 1 General System Description UNIWILL COMPUTER CORP. 24 Pei Yuan Road Chung Li Industrial Park, Chung Li City Tao Yuan Hsien, Taiwan R. O. C. TEL: 886-3-461-6000 FAX: 886-3-461-6317 URL: http:// www. uniwill. com. tw/ 340S2 1 Rev : B Chapter 1 General System Description UNIWILL TECHNOLOGY CORP. 14F, 67 & 69, Section 1, Chung San RD. , Hsin Chuang City, Taipei Hsien, Taiwan, R. O. C. [. . . ] Yes END Replace motherboard No Board level troubleshooting Yes Check CMOS RAM, CMOS battery for cold solders Re-solder No One of the following parts on the motherboard maybe defective, replace the parts one a time and test after each replacement: 1. CMOS RAM 2. CMOS battery 340S2 64 Rev : B Chapter 5 Troubleshooting Guidelines 5. 11 SIO port test error Symptom: An error display occurs when a mouse or other I/O device is installed SIO test error 1. Check whether mouse or other I/O device are properly installed (including driver) 2. Try another working mouse of I/O device Yes Re-test Ok?Yes Replace Motherboard Correct it Correct it Board level troubleshooting Check SIO controller for cold solder? Yes Re-solder No One of the following parts on the motherboard maybe defective, plug SIO loopback at SIO port and run SIO test program. If error, replace SIO controller 340S2 65 Rev : B Chapter 5 Troubleshooting Guidelines 5. 12 PIO port test error Symptom: When a print command is issued, printer prints nothing or garbage. check whether cables, printer & printer driver are installed properly 2. try another working printer and cable Re-test OK? Yes Correct it No No Setup OK?Yes Replace motherboard Correct it Board level troubleshooting Check PIO controller, for cold solder? Yes Re-solder No One of the following parts on the motherboard maybe defective, plug PIO loopback at PIO port one a time and test, if error replace PIO controller 340S2 66 Rev : B Chapter 5 Troubleshooting Guidelines 5. 13 Audio failure Symptom: No sound from speaker after audio drive is installed. 2. check whether cables, speakers & audio drivers are installed properly try another working speaker & cable Yes Re-test ok?Yes Replace motherboard Correct it Correct it Board-level troubleshooting Check SIS 630 Chipset for cold Solder Yes Re-soldering No One of the following parts on the motherboard may be defective, replace the audio controller chip 340S2 67 Rev : B Chapter 5 Troubleshooting Guidelines 5. 14 No power symptom: Symptom: When the power button is pressed, nothing happens, power indicator is not light up. No Power Yes Check Fuse on DC/DC Board if open Replace it No Yes Check DC/DC Board Signal or replace each parts. Correct it No Press Power on button again Check system LED lit on 340S2 68 Rev : B Chapter 5 Troubleshooting Guidelines 5. 15 CD-ROM drive test error An error message is shown when reading data from CD-ROM drive CDROM Failure No Check drive is install OK?Correct it Yes Check cable & Door is closed Yes Replace Motherboard No Correct it Board Level Troubleshooting Check SIS 630 Chipset and CDROM connector for cold solder? Yes Re-soldering No Check one of the following parts or signal on the M/B may be defective, use an oscilloscope to check it. 340S2 69 Rev : B Chapter 5 Troubleshooting Guidelines 5. 16 Stopping in LCD screen while booting Stop in LCD Screen while booting No Check Memory Size is correct?Yes Record LCD message & to Board­level Troubleshooting Check HDD detection is OK?Yes No Make sure HDD is good &Check BIOS setting No Check CD-ROM Detection is OK?Yes Stop in LCD screen while booting Make sure CD-ROM Is good & Check BIOS Settings Check CPU & SIS630 for cold soldering?Yes Re-soldering No Check one of the following parts or signal on the M/B may be defective, use an oscilloscope to check it. 340S2 70 Rev : B Chapter 5 Troubleshooting Guidelines 5. 17 PCMCIA CardBus failure Symptom : when insert PCMCIA card to PCMCIA slot, but system can't detect. PCMCIA card failure Insert PCMCIA card completely again, make sure good connection. Check drive & controller install OK?Yes Board-level Trouble shooting No Correct it Check PCMCIA slot mounting in M/B is cold soldering No Yes Re-soldering Check O2Micro OZ 6812 Chipset for cold soldering? Yes Re-solder No Replace O2Micro OZ6812 chipset 340S2 71 Rev : B Chapter 5 Troubleshooting Guidelines 5. 18 IR Port can't transfer data. IR failure & no response Check BIOS setup OK?Yes Check driver install OK No Correct it No Correct it Yes No Check another one IR device is meet IrDa 1. 0 Yes Board-level trouble shooting Try another IR device Check PC87393 for cold soldering No Replace Super I/O PC97393 Chipset Yes Re-soldering 340S2 72 Rev : B Index 5. 19 Modem failure Modem Failure Check Driver install & Telephone Line is OK? No Correct it Yes Check IRQ, COM port setting is OK?No Correct it AT command test modem function is OK No Re-install Drivers Yes Board-level trouble shooting Check modem DAA board is connected properly and wiring with the phone jack No Connect it Yes Replace another known good modem DAA module. 340S2 Rev : B Index UNIWILL COMPUTER CORP. 24 Pei Yuan Road Chung Li Industrial Park, Chung Li City Tao Yuan Hsien, Taiwan R. O. C. [. . . ] 5. 10 CMOS test error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. 11 SIO port test error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. 12 PIO port test error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. 13 Audio drive failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]