December 2005 © TOSHIBA TEC e-STUDIO163/203 TROUBLESHOOTING
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5
5.1.5 Drive system related service call
[C01] Main motor is abnormal
Is the main motor working? (Perform the output check in the test mode: 04-101/151)
l
l
l
l
l
l
l
l
%
NO # 1) Check if the connector CN1 of the main motor is disconnected.
2) Check if the connector CN16 on the MAIN board is disconnected.
3) Check if the connector pins are disconnected and the harnesses are
open circuited.
4) Check if the conductor patterns on the main motor board and MAIN
board are short circuited or open circuited.
5) Replace the main motor.
6) Replace the MAIN board.
YES
Is the LED on the main motor board lit without flickering?
l
l
l
l
l
l
%
NO # 1) Check if the connector pins are disconnected and the harnesses are
open circuited.
2) Check if the conductor patterns on the main motor board and MAIN
board are short circuited or open circuited.
3) Replace the main motor.
4) Replace the MAIN board.
YES
1) Check if the PLL lock signal CN305-B8 output from the MAIN board is always level “L”?
2) Check if the voltage supplied to the CPU input terminal IC24-12 is always “L”?
3) Replace the MAIN board.
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