Service Manual | SM |
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 | Kodak AG, Stuttgart |
