Toshiba e-STUDIO500P Go toMain drive service, Board. See System board, Inner shield removal on

Service error codes (9xx.xx) (continued)

Error		Sub	Display text	Description		Action
code		codes
937		.4	Overspeed detected	•	Faulty motor sensor	Go to “Main drive service
			during speed control.	•	Faulty system board	check” on page 2-105.
			Motor is type 0.
937		.41	Overspeed detected	•	Faulty motor sensor	Go to “Main drive service
			during speed control.	•	Faulty system board	check” on page 2-105.
			Motor is type 1.
937		.5	Overspeed detected	•	Faulty motor sensor	Go to “Main drive service
			during position control.	•	Faulty system board	check” on page 2-105.
			Motor is type 0.
937		.51	Overspeed detected	•	Faulty motor sensor	Go to “Main drive service
			during position control.	•	Faulty system board	check” on page 2-105.
			Motor is type 1.
937		.7	Loss of lock detected by	•	Defective motor cable	Go to “Main drive service
			higher level code. Motor	•	Defective main drive motor	check” on page 2-105.
			is type 0.
				•	Paper jams
937		.71	Loss of lock detected by	•	Defective motor cable	Go to “Main drive service
			higher level code. Motor	•	Defective main drive motor	check” on page 2-105.
			is type 1.
				•	Paper jams
937		.80	Driver over temperature	•	Excessive gear loading in gearbox	Go to“Main drive service
			detection. Motor is		assembly	check” on page 2-105.
			type 0.
939		.00	RIP–engine	System board		POR the printer several times, if
			communications lost.			the error code continues to be
						displayed, replace the system
						board. See “System board
						and inner shield removal” on
						page 4-76.
940		.00	LVPS zero-crossing test	•	Incorrect LVPS installed	Check to make sure the correct
			failed.	•	Noisy AC power source	LVPS assembly has been
						installed. If the correct supply is
				•	LVPS to system board cable loose
						installed, check to make sure
						the LVPS to system board cable
						is installed correctly. If correct,
						replace the LVPS assembly.
						See “Low voltage power
						supply removal” on
						page 4-54.
947		.00	PQET RAM test	PQET failed to pass RAM tests on the		Replace the system board. See
			incomplete,	system board		“System board and inner
			PQET RAM test did not			shield removal” on page 4-76.
			complete,
			PQET RAM test failed
			MARCH0
			PQET RAM test failed
			MARCH1
			PQET RAM test busy
			failure
948		.00	Pel clock check failed	System board		Replace the system board. See
						“System board and inner
						shield removal” on page 4-76.
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