Kodak 5600-KK, 4400, 4200-KK, 4600-KK, 5600-J, 4200-J service manual Gate Mechanism, Board

Diagnostics

Malfunction		Check
No remote focus, RACK SOLENOID	1. Check that the REMOTE CORD operates
ASSEMBLY operates (Auto Focus Models)		correctly; use a REMOTE CORD you know
		is good (EC 3).
	2.	Actuate and hold the REMOTE CONTROL.
	3.	Check that the voltage across the FOCUS
		MOTOR is 6.7 V AC. If the voltage is
		correct on the FOCUS MOTOR, the
		FOCUS MOTOR is defective. Install a new
		FOCUS MOTOR.
	4.	Check the AUTO FOCUS SWITCH
		ASSEMBLY for correct operation.
	5.	Check the secondary voltages on the MAIN
		MOTOR.
No auto-focus	1. Check that the AUTO-FOCUS DEFEAT
		SWITCH is in the “ON” position.
	2.	Check that the MAIN PROJECTION LAMP
		operates correctly.
	3.	Insert the TARGET SLIDE TL-3002 in the
		GATE MECHANISM.
		• Check that the TARGET is correctly
		aligned. If not, see the Adjustment
		section.
	4.	Check that the voltages across the
		PHOTOCELL are correct. The voltage
		from 1 to 2 is 13.8 V ac. The voltage from
		2 to 3 is 13.8 V ac. The voltage from 1 to 3
		is 28 V ac.
	5.	Make a short• between 1 and 2; the
		FOCUS MOTOR should rotate.
	6.	Make a short•circuit between 2 and 3; the
		FOCUS MOTOR should rotate in the
		reverse direction.
	7.	If the FOCUS MOTOR operates correctly,
		install a new PHOTOCELL. If the FOCUS
		MOTOR does not operate correctly,
		measure the voltages on the CIRCUIT
		BOARD.
Slow auto-focus movement	1.	Check that the alignment of the FOCUS
		LIGHT PATH and NULL is correct.
	2.	Check the resolution of the FOCUS LIGHT
		PATH. Clean the AUTO FOCUS MIRROR
		and BRACKET ASSEMBLY.
	3.	Install a new PROJECTION LAMP if
		necessary.
	4.	Install a new PHOTOCELL.
	5.	Check the components on the CIRCUIT
		BOARD for damage.

SM5440-1 – 18NOV97 49