MiTAC 8355 service manual Test Error

8355 N/B MAINTENANCE

8.13 IEEE1394 Test Error

Symptom: An error occurs when IEEE1394 device is installed.

1394 Test Error

1.Check if the driver is installed properly 2.Check if the device connect with the

1394IEEE properly

Board-level

Troubleshooting

Check the following parts for cold solder or one of the following parts on the mother-board and I/O 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.

Test		Yes
			Correct it.
OK?
	No
Change another good device

Replace

Motherboard or I/O Board

Re-test	Yes	Change the faulty
OK?		part then end.

NO

Parts:

U20 L86

U516 L87

U28 R751

J16 R747

L71 R759

C374 R755

C372 C778

R714 C781

L75 R758

C385 C785

R302

R307

R290

R299

C367

R777

R778

Signals

TPA0PPCI_STOP#

TPA0NPCI_PERR#

TPB0PPCI_SERR#

TPB0NPCI_PAR

TPB1AS0 +3V

PCI_AD[0,31] D_VMAIN PCI_C/BE#[0,3] +PHYAVDD

GROM_SDA +PHYVDD GROM_SCL PCI_FRAME# PCI_DEVSEL# PCI_TRDY#

PCI_IRDY# PCI1394_REQ#3 PCI1394_GNT#3 PCI_1394CLK PCI_1394_RESET#

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