Kodak 4400, 4200-KK, 5600-KK, 4600-KK, 5600-J, 4200-J service manual Focus Malfunctions, Switch

SERVICE MANUAL

Malfunction		Check
TIMER does not operate	1. Check the VARIABLE RESISTOR for
		correct operation and install a new part if
		necessary.
	2.	Move the TIMER BUTTON forward and
		backward; use a DVM to check for changes
		in W.
	3.	Energize the projector and move the TIMER
		to “S”.
		• Check the voltages on CR3, Q3, and
		Q4, see the voltage table.
DARK SHUTTER SWITCH does not operate	1.	Energize the projector and release the
		DARK SHUTTER to allow projection.
	2.	Check for continuity between PINS 4 and 5
		on the SPECIAL APPLICATIONS PLUG.
	3.	Press the “FORWARD” or “REVERSE”
		BUTTONS to close the DARK SHUTTER.
	4.	In the closed position, the DVM should
		measure 0 W.
	5.	If this procedure does not correct the
		malfunction, install a new DARK SHUTTER
		SWITCH.
After the FOCUS MOTOR energizes and	1. Remove R3 and install a new 68K W 1/4 W
moves, the FOCUS MOTOR oscillates.		RESISTOR (part 220040).
	2.	If there is still a malfunction, install a new
		PHOTOCELL.
Focus Malfunctions

Malfunction		Check
No manual focus	1. Check the FOCUS SHAFT SPRING for the
		correct tension.
	2.	Check the LENS SUPPORT SPRING for
		correct tension.
	3.	Check the LENS DRIVE GEAR on the
		FOCUS SHAFT ASSEMBLY for damage
		and install a new part if necessary.
No remote focus (Non Auto Focus models)	1. Check the REMOTE CORD for damage;
		use a REMOTE CORD that has no
		damage.
	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, install a new FOCUS MOTOR.
	4.	Check that the secondary voltage on the
		MAIN MOTOR is correct.

48 18NOV97 – SM5440-1