SONY PCG-731
Service Manual

13. Modem test group Tests the modem and related blocks. (1) Modem loopback test Tests the data send/receive between modem and computer. The jig modem is necessary. Connect the jig modem to the modem port of the PCG-730 series VAIO. (2) Voice modem test Tests the voice modem. The jig modem and cable are necessary. Connect the jig modem to the modem port of the PCG-730 series computer, and connect the jig cable in accordance with instruction displayed. 14. Mouse test Tests the mouse. Move the cursor inside the white square mark ( instruction displayed. 15. Parallel loopback test Tests the parallel (printer) port. The jig is necessary. Connect the jig to the parallel port. To perform this test, use the docking station. Install the FDD bay to the docking station and boot up the system from the FDD bay of the docking station. 16. PC Card test Tests the PC card. The PC card tester jig is necessary. Insert and remove the PC card tester in accordance with instruction displayed. 17. Serial loopback test Tests the COM port. The serial loopback jig is necessary. Connect the serial loopback jig to the COM port. 18. Dock PCI connector test Tests the docking station connector of the computer, only related to the PCI signal. To perform this test, the docking station is necessary. 19. Video test group Tests the circuit blocks related to the video display. (1) TV out test Tests to output the video signal from the TV-OUT terminal. The NTSC TV receiver is necessary. Connect the TV-OUT terminal to the NTSC TV receiver. Check that the color bar signal appears. (2) Video test Tests the various video modes. A part of display is not shown as the video signal is displayed partly outside the screen in some tests of LCD (i.e., 1024 x 768 mode) when using the SVGA (800 x 600) displays. But this is normal. ) and operate the system in accordance with

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PCG-731/735/737 (UC/E)