Kodak 9020 Description of Functions, Power Supply, Transformer supplies the following voltages

Service Manual SM 2547-1

Description of Functions

Power Supply

The PROJECTOR POWER SYSTEM consists of a

∙POWER INPUT ASSEMBLY with POWER ON/OFF SWITCH, PRIMARY FUSE HOLDER and VOLTAGE SELECTOR

∙TRANSFORMER, SECONDARY FUSE HOLDER

∙POWER REGULATION PCB

The TRANSFORMER supplies the following voltages:

Primary voltage outputs:

92/81 VAC LAMP voltage for Models 4020 - 9020 and 9020/CINE (SOFTWARE CONTROLLED LAMP CURVE)

Safety Extra Low Voltage outputs:

10 VAC	for +5V DC	and +12V DC
26 VAC	for 36 VDC	regulated and unregulated,

The POWER REGULATION PCB contains:

-line EMI filter

-rectifiers and regulators

-Triac LAMP Software Control Circuits (Models 4020 - 9020 and 9020/CINE)

The output voltages and signal are:

- 36		VDC unstabilized (36 VDC_12P)	for slot interface
- 36		VDC capacitor- stabilized (36 VDC)	for MOTOR´s, solenoid, fan
-	12	VDC unregulated	for remote control and slot
-	5 VDC regulated		for logic and MICROCONTROLLER
-	26	VAC	for accessory slot
-	Zero_cross signal		for synchronization of the dissolve feature

Details can be obtained from circuit diagrams and the following block diagram.

IMPORTANT

Connect all the equipment to the same same power line, otherwise phase shifting will bring up problems !

03/98 3-4 Kodak AG, Stuttgart