This is a cheap Sigma branded keychain photoframe. User buttons for power & selecting photos are on the left.
There are two white LEDs on the bottom edge that function as a torch as well.
Front of the unit removed, showing the LCD module. The USB jack is bottom left, next to the pair of white LEDs & above that is the 32kHz watch crystal that the CPU uses for timekeeping.
Here the back has been removed showing the 3.7v Li-Ion cell used to provide power.
Here the display has been removed from the PCB exposing the chipset.
Here the CPU blob-top chip & a flash memory IC are visible. The CPU is a Sitronix ST2205U.
Here is an old XM2000 marine VHF tranciever.
Here is the casing split, with the main CPU board & display on the right, & the RF tranciever board on the left.
View of the main CPU board, with the mic & loudspeaker on the right hand side.
The channel display is on the reverse side of the PCB.
View of the RF board, with it’s brass shielding attached. This radio will transmit at 5W max.
Shielding removed, power regulation bottom right corner of the board, tranciever on the left.
CPU board removed from the casing, showing the LCD & the user buttons to the left.
Here is a label maker, bought on offer at Maplin Electronics. Full Qwerty keyboard with 1 line dot matrix LCD display visible here. Power is 4 AAA cells or a 6v DC Adaptor.
Rear cover removed. Battery compartment is on the left hand side, space for the tape cartridge on the right. Ribbon cable leading to the thermal print head is on the far right, with rubber tape drive roller.
PCB under the top cover with the main CPU, a MN101C77CBM from Panasonic. This CPU features 48K Mask ROM & 3K of RAM. Max clock frequency is 20MHz. 32kHz clock crystal visible underneath a Rohm BA6220 Electronic speed controller IC.
This is used to drive the printer motor at a constant accurate speed, to feed the tape past the thermal head. Miniature potentiometer adjusts speed.
Ribbon cable at the bottom of the board connects to the print head, various wiring at the left connects to the battery & DC Jack.
Printer drive mechanism. Small DC motor drives the pinch roller though a gear train. DC Jack & reverse polarity protection diode is on the right.
This unit uses a centre negative DC jack, which is unusual.
Thermal tape cartridge, black text on white background.
A 5 megapixel digital camera from Vivitar. Visible here is the lens, viewfinder & flash.
Rear of the unit showing the LCD & user control buttons.
Front frame removed showing some of the internals. Shutter assembly & lens in centre, battery compartment at left.
Rear frame removede, showing the LCD module & tactile switches.
LCD module removed from the 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 removed. Internal flash ROM & RAM IC visible above the SD card socket. USB connector is at the top right, next to the piezo buzzer.
Main processor on reverse side of the PCB.
Closeup of the CMOS image sensor with the lens assembly removed.
Pocket sized GPS navigator. Here is shown the greyscale dot matrix LCD.
Serial interface on the back of the unit. Pinout from left is +3v, Rx, Tx, GND.
PCB Removed from the casing. RTC backup battery in the centre of board, CPU & flash ROM on the left. GPS chipset is under the shield on the right.
Front of the PCB, GPS antenna on the right, LCD panel left.
LCD folded back from the PCB. Driver IC can be seen attached to the ribbon.
LCD Panel backlight. Requires 200v AC at 20kHz to glow green.
GPS chipset with the shield removed.
Here is a PSP Slim that recently died.
For those that are interested, here is the ID label, this is a PSP-2003.
Here the front of the unit has been removed, showing the first internal components.
Here is the unit with the LCD removed, here the mainboard is partially visible.
Left pad unit removed from the PSP, with the left speaker & the memory stick slot cover.
Rear of the left pad assembly, showing the speaker.
Joypad removed from the casing. Resistive unit.
Headphone/data board removed from the casing. This also has TV-Out on the PSP-200x series.
Mainboard removed. Main CPU is at the top. Sockets around the bottom connect to the UMD drive & UMD Drive.
Closeup of the main chipset. CPU is the top IC.
Rear of the mainboard, Memory Stick socket on the right.
Closeup of the WiFi chipset & the charging power socket on the right.
Closeup of the bettery connector & the charge controller IC.
UMD Drive removed from the rear of the casing. This is a miniature DVD style drive, using a 635nm visible red laser.
Rear of the UMD drive, showing the laser sled & drive motors. Both the spindle motor & the sled motor are 3-phase brushless type. The laser diode/photodiode array is at the top of the laser sled.
This is a little security measure you get with Internet Banking with the Co-Op, generates codes to confirm your identity using your bank card. About the size of a pocket calculator, this is the keypad & screen.
The rear of the unit, the card slots into the top, manufactured by Gemalto Digital Security.
Outer back cover removed, showing the 8 contacts for the chip on the bank card, the 2 contacts below that switch on power when a card is inserted. Power comes from 2 lithium coin cells in the compartment on the lower left.
PCB removed from the casing, showing the internal components. Two large pads at top left are battery connections, while the only IC on the board is the main CPU, under the card connector. 6MHz oscillator & 32Khz crystal on board for processing & timekeeping. LCD screen connection at far right.
Reverse side of the PCB, with the keypad contacts. LCD on right, with programming interface pads at side of keypad.
Here is a more modern phone, the Motorola V360v. Features include Dual screens, 640×480 VGA camera, full col
our TFT Main LCD, SD-Micro slot.
Here on the back the grey scale LCD can be seen, with the camera lens to the right of the Motorola logo
Here the phone is opened showing the keypad & the full colour TFT LCD display.
Here the battery is removed from the unit, showing the SIM connector. The antenna cover is still on at the bottom.
The antenna cover has been removed in this shot, the antenna is the white section at the bottom, With the loudspeaker & the external antenna connector hidden at the right.
Here is the main PCB. Parts from left are the Bluetooth module at the top, supplied by Broadcom, the SD Card socket at the bottom. Main CPU next to that is the Freescale SC29343VKP. Above right of the CPU is the Freescale SC13890P23A Charger, Power & Audio IC. Below is the SIM card socket. Under the main CPU is the Intel Flash memory IC. ICs inside the shields are the RF sections for transmit & receive.
Rear of the display unit showing the monochrome LCD. The camera module on the bottom left. Ear speaker on the far right of the unit.
Main colour TFT LCD.
Camera module removed from the LCD unit.
The vibration motor attached to one of the LCD looms.
Another phone from the mid 90s. This is the nokia 7110.
Here the slider is open showing the keypad.
Here the battery is removed, a Li-Ion unit.
The battery cell & protection circuit removed from the casing.
This is the rear of the PCB removed from the housing. Data & charging ports on the right hand side f the board.
Front of the PCB with the RF sections at the left hand side & the keypad contacts on the right.
Closeup of the RF sections of the board, big silver rectangular cans are VCO units.
Closeup of the top rear section of the PCB, with SIM cnnector, battery contacts, IR tranciever at the far left. Bottom centre is the external antenna connector.
The logic section of the board, Large chip is CPU, to right of that is the ROM storing the machine code. Other chips are unknown custom parts.
The Mic & the loudspeaker removed from it’s housing.
LCD from the front of the unit, SPI interfaced. Flex PCB also contains the power button, loudspeaker contacts & a temperature sensor.
The scroll wheel removed from the front housing.
Tiny vibration motor removed from the rear housing, alerts the user to a text or phone call.
Here is a phone from the mid 90s, the Ericsson GA628. Here visible is the front of the unit with keypad, & single line monochrome LCD for number display.
Here the battery is removed from the phone, showing the SIM card socket. At the top under the antenna stub is the socket for an external antenna.
Here the front is removed from the phone, PCB on left, rear of keypad on right. Microphone is at bottom of keypad, with speaker at the top. Top right of the PCB is the ringer buzzer, left is shield for RF amplifier.
Here is the back of the main PCB, RF sections on left & centre. Processing & memory on right.
This phone had a Ni-Mh battery, before Li-Ion batteries were introduced.
The LCD from the front of the phone is shown here. A simple dot matrix single line unit.
This is a HP PhotoSmart 375 portable photo printer. With built in card reader, screen & PictBridge.
Top of the printer showing the UI Buttons & Screen.
Front of the unit, card reader slots at the top, Pictbridge USB connector at top left. Paper out slot at bottom. Cartridge door is on the right.
Here the cartridge door is open. Takes HP 95 Tri-Colour Inkjet Cartridge.
Battery compartment on the bottom of the unit. A Li-Ion battery pack can be installed here for mobile photo printing.
Specifications label.
Power adaptor & USB connection for PC use.
Rear door opened. Showing the paper feed tray.
Rear door has been removed in this shot. Paper feed roller & platen roller can be seen here.
Paper holder attached to rear door.
Bottom of the top cover, with connections for the buttons & LCD panel.
This is the main PCB of the unit. Controls all aspects of the printer. CPU in center, card reader sockets are along bottom edge. various support circuitry surrounds the CPU.
Rear shell has been removed here. Showing the main frame & the carriage drive motor on the left.
Closeup of the carriage drive motor & timing belt system. All the motors in this printer are DC servo motors, not steppers.
Main drive motor, feeds paper, drives rollers, operates cleaning mechanism for the inkjets.
Mainshaft encoder. Main drive motor is bottom right hand side with timing belt drive.
Closeup of the CPU. This is a Phillips ARM chip, unknown spec.
Detail of the card reader sockets, this unit takes all current types of Flash memory card.
This is the Current Cost CC128 Real Time Power Meter. Shown here is the display unit, British Gas issued these free to some customers.
This unit measures current power draw in Watts, cost of power currently being used (requires unit price to be set), overall kWh usage over the past 1, 7 or 30 days & power trends during the day, night & evening. Also displays current time & current room temperature.
Here the front panel of the display has been un-clipped. At the bottom are the RJ-45 serial port & power connections.
This unit uses a PIC micro-controller as it’s CPU (PIC18F85J90) Just above & left of the CPU is the 433MHz SPD radio receiver module. The chips on the right of the CPU are a 25LC128 SPI serial EEPROM for data storage & a 74HC4060 14 stage binary counter, to which is connected the 32kHz clock crystal. The red wire around the top of the display is the antenna for the radio receiver.
For more info on the CC128 in general, the serial port & software for computer data logging, see this link
See this link for Current Cost’s list of software
Closeup of the ICs on the mainboard.
Here we have the transmitter unit, with Current Transformer (CT). The red clamp fits around one of the electric meter tails & read the current going to the various circuits. This unit is powered by 2x D cells, rated at a life of 7 years.
The PCB inside the transmitter. Again very minimal design, unknown controller IC, 433MHz radio transmitter on right hand side with wire antenna. Two barrel connectors on left hand side of board allow connection of up to two more CT clamps for measurement of 3-phase power. Centre of board is unmarked header. (ICSP?)
CT unit. Inside is a coil of wire & an iron core which surrounds the cable to be measured.
PIC18F85J90 |