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Tag: ROM

Cat Links A/V Gear, Teardown

Behringer DEQ2496 Mastering Processor

Posted on November 20, 2016November 17, 2016 The Engineer

I was recently given this unit, along with another Behringer sound processor to repair, as the units were both displaying booting problems. This first one is a rather swish Mastering Processor, which has many features I’ll leave to Behringer to explain 😉 All the inputs are on the back of

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Cat Links Bare Silicon

IC Decap: Motorola MC68HC11E9 8-Bit Microcontroller

Posted on February 17, 2016 The Engineer

This particular IC came out of a very old VHF band radio, from the early 90’s. The die was encased in a custom ceramic package, like every other IC in the radio, with a custom part number. I managed to identify it from the markings on the silicon. This was

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Cat Links Consumer Gear, Randoms

Routemaster Control Unit

Posted on October 21, 2012October 21, 2012 The Engineer

This is the control unit for a Routemaster system, that downloads traffic information for the area local to the vehicle. Here is an overview of the unit, in it’s aluminium box.           Here is the unit with the top cover removed, showing the pair of PCBs.

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Cat Links Personal Project

Zebra P330i Card Printer

Posted on February 2, 2012 The Engineer

This is the teardown of a Zebra P330i plastic card printer, used for creating ID cards, membership cards, employee cards, etc. I got this as a faulty unit, which I will detail later on. This printer supports printing on plastic cards from 1-30mils thick, using dye sublimation & thermal transfer

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Cat Links Consumer Gear

Garmin eTrex

Posted on February 20, 2011February 10, 2011 The Engineer

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

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Cat Links Computer Gear

USB Flash Drive

Posted on September 23, 2010 The Engineer

Here is a cheap chinese made flash drive given out for free by Westlaw UK. Capacity 512MB Here is the PCB removed from the casing, USB connector on the left, followed by the clock crystal for the flash controller, a CBM2092, which is a Chipsbank part. 512MB flash memory IC,

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Cat Links Consumer Gear

Nokia 7110

Posted on August 26, 2010 The Engineer

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 &

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Cat Links Consumer Gear

Ericsson GA628

Posted on August 25, 2010 The Engineer

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

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