Kodak Ektapro Slide Projector 4020 - Manual (Page 5)

Power Supply ............................................................................................................................. 3-4
The TRANSFORMER supplies the following voltages: .............................................................. 3-4
The POWER REGULATION PCB contains:............................................................................... 3-4
The output voltages and signal are:............................................................................................ 3-4
Switch On / Initialize Procedure.................................................................................................. 3-6
Slide Change Sequence ............................................................................................................. 3-7
Tray Motion................................................................................................................................. 3-8
Tray Motion Sequence: ............................................................................................................ .. 3-9
LAMP Control ........................................................................................................................... 3-11
a) Dual LAMP Operation .......................................................................................................... 3-11
b) Low/High LAMP Setting ....................................................................................................... 3-12
c) LAMP Protection................................................................................................................... 3-12
d) LAMP Voltage Control .......................................................................................................... 3-12
e) Lamp Dimming ..................................................................................................................... 3-13
Focus ........................................................................................................................................ 3-15
Auto focus................................................................................................................................. 3-16
P-BUS ..................................................................................................................................... 3-17
Command Structure ................................................................................................................. 3-18
Accessory slot .......................................................................................................................... 3-19
Remote Control ........................................................................................................................ 3-20
4. DISASSEMBLY/ASSEMBLY ........................................................................................................... 4-1
UPPER HOUSING.............................................................................................................................. 4-1
BUTTONS and COVER PLATES ....................................................................................................... 4-2
Assembly .................................................................................................................................... 4-3
CENTER HOUSING ........................................................................................................................... 4-4
FAN, KEYBOARD PCB and TRAY MOTION PCB............................................................................. 4-8
BACK PANEL PCB........................................................................................................................... 4-10
TRANSFORMER, POWER SUPPLY PCB and BACK PLATE ASSEMBLY .................................... 4-11
SM 2547-1 Service Manual
Kodak AG, Stuttgart V 03/98