Scammed on eBay. Fake chip. IBM 5155 Portable and PCjr repair

IBM 5155 Garbled screen & PCjr two beeps and black screen. + Overclocking. PCB Prototype the Easy Way. Full feature custom PCB prototype service. https://www.pcbway.com/ Gerbers for Skinny Sprint here: https://github.com/epictronics/Skinny-Sprint/tree/main

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Tools I regularly use DeoxIT D5 Contact Cleaner Hanstar 861DW Rework Station Pro'sKit SS-331 Desoldering Station UNI-T UT61E Auto Ranging Multimeter UNI-T UT890D Manual Ranging Multimeter MESR-100 mk2 ESR meeter PINECIL Soldering Iron PinePowerPSU TS-100 Soldering Iron AMTECH NC-559-ASM Flux Kester 951 Flux pen MaAnt Grinding Pen Multicore 60/40. 0.38mm and 0.5mm solder TL866 II Plus Programmer RIGOL DHO800 70MHz four-channel digital scope Tektronix 2246A 100 MHz four-channel analog scope FNIRSI DPOX180H 180MHz Handheld Digital Oscilloscope InfiRay P2 Pro Thermal Camera PCBs from PCBWay.com

patreon.com/Epictronics Join me on Twitter: https://twitter.com/epictronics1 Music by Karl Casey @ White Bat Audio ... https://www.youtube.com/watch?v=FW4_4WMucfk