Toshiba e-STUDIO500P manual Operator panel display

Operator panel display

Service tip: The printer has detected a problem with the system board, the operator panel cable (part of the upper front cover hinge assembly), or the operator panel board if POST does not complete, the printer emits 5 beeps, and stops in a continuous pattern until the printer is turned off.

Note: If the operator panel is operating properly except for a pel or a few pels missing or broken, run the “Panel Test” on page 3-7from the hardware tests before continuing with this service check.

	FRU	Action
1	Operator panel cable	Check for proper installation of the cable at the system board (J13)
		and at the operator panel. Check the continuity of the operator panel
		cable. If incorrect, replace the upper front cover hinge assembly. See
		“Upper front cover hinge assembly removal” on page 4-78.
2	Operator panel display	Check for correct installation of the operator panel cable at J13 on
	blank, 5 beeps, LED off	the system board. If incorrect, reinstall the cable properly. If correct,
		measure the voltage at J13-2 on the system board. The voltage
		should measure approximately +5 V dc. If incorrect, replace the
		system board. “System board and inner shield removal” on
		page 4-76. If correct, check continuity of the operator panel cable. If
		the continuity is incorrect, replace the upper front hinge assembly. If
		the continuity is correct, replace the operator panel board. See
		“Operator panel board removal” on page 4-66.
3	Operator panel display	Check for ground between J13-4 and ground. If correct, replace the
	blank, 5 beeps, LED on	operator panel board. See “Operator panel board removal” on
		page 4-66. If incorrect, check the operator panel cable. If the cable is
		incorrect, replace the upper front cover hinge assembly. See “Upper
		front cover hinge assembly removal” on page 4-78. If the correct,
		replace the system board. See “System board and inner shield
		removal” on page 4-76.
4	Operator panel all	Make sure a card is not plugged in backward. This condition causes
	diamonds, no beeps	the printer to fail POST, displaying all diamonds on the operator panel
		with no beeps.
5	Operator panel all	Check the voltage at Pin J13-1 and J13-3. The voltage measures
	diamonds, 5 beeps	approximately +3.3 V dc. If incorrect, replace the FRUs in the
		following order:
		•	Operator panel board (see “Operator panel board removal” on
			page 4-66) or the Upper front cover (see “Upper front cover
			removal” on page 4-11).
		•	System board. See “System board and inner shield removal”
			on page 4-76.
		•	Upper front cover hinge assembly. See “Upper front cover
			hinge assembly removal” on page 4-78.

Diagnostic information 2-107