A 5 megapixel digital camera from Vivitar. Visible here is the lens, viewfinder & flash.
Back
Rear of the unit showing the LCD & user control buttons.
Cover Removed
Front frame removed showing some of the internals. Shutter assembly & lens in centre, battery compartment at left.
Rear Cover Removed
Rear frame removede, showing the LCD module & tactile switches.
LCD
LCD module removed from the PCB
Flash PCB
Flash PCB removed. Transformer is fed with the 4.5v from the 3 AA cells & steps it up to ~300v DC for the flash capacitor. A pulse transformer energizes an electrode next to the Xenon flash tube with ~5kV to ionize the gas.
Main PCB
Main PCB removed. Internal flash ROM & RAM IC visible above the SD card socket. USB connector is at the top right, next to the piezo buzzer.
CPU
Main processor on reverse side of the PCB.
Image Sensor
Closeup of the CMOS image sensor with the lens assembly removed.
Here is a cheap no frills microwave oven, which died after a few weeks of normal use.
Electronics Bay
Cover removed, showing the internals. Front of the microwave is on the left.
Timer
Closeup of the timer unit. Cheap & nasty.
Magnetron
Magnetron removed from the oven. Antenna is on the top, cooling fins visible in the center. White conector at the bottom is the filament terminals.
Magnetron Chokes
Chokes on the magnetron’s filament connections. These prevent microwave energy from feeding back into the electronics bay through the connections.
Magnetron Assembly
Magnetron cooling fins, tube & magnets removed from the frame.
Magnetron Tube
Bare magnetron tube.
Power Input Board
This PCB does some rudimentary power conditioning, power resistors are in series with the live feed to the power trasformer, to prevent huge power up surge. When the transformer energizes the relay, which is in parallel with the resistors, switches them out a fraction of a second after, providing full power to the transformer.
Standard RFI choke & capacitor at the top of the board, with the input resistor.
Transformer
Power transformer to supply the magnetron with high voltage.
Power output is ~2kV at ~0.5A. Pair of spade terminals are the low voltage filament winding.
Capacitor
HV Capacitor. This along with the diode form a voltage doubler, to provide the magnetron with ~4kV DC.
Diode
HV diode stack.
Fuse Element
Internals of the HV fuse. Rated for ~0.75A at 5kV. The fuse element is barely visible attached to the end of the spring. Connects between the transformer & the capacitor.
Cooling Fan
Cooling fan for the magnetron. Drive is cheap shaded pole motor.
An ICL barcode scanner from the 80s is shown here. This is the top of the unit with cover on.
Cover Removed
Plastic cover removed from the unit showing internal components. Main PSU on left, scan assembly in center. Laser PSU & Cooling fan on right. Laser tube at top.
Scan Motor
Closeup of laser scan motor. This unit scans the laser beam rapidly across the glass plate to read the barcode.
Controller PCB
View of the bottom of the unit, showing the controller PCB in the centre.
Scan Motor Driver
The 3-phase motor driver circuit for the scan motor. 15v DC powered.
Laser Unit
This is the laser unit disconnected from the back of the scanner. HT PSU is on right hand side, beam emerges from optics on left.
Laser Unit Label
This unit is date stamped 1987. The oldest laser unit i own.
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