Microvitec Cub Monitor Repair

Repairing a common fault on these monitors, that of Frame Collapse - a white line across the screen. In this video, I show how to check and diagnose the fault, repair it and test the monitor afterwards. CONTENT: 00:00 Introduction 01:10 The fault is displayed 01:29 How the beam is moved 02:08 A first look inside 02:30 Explaining the circuitry involved 02:47 The supply rail that is the fault 03:09 The likely suspect component 03:37 Checking for the fault condition 05:31 Accessing the chassis 07:00 Unplugging plugs and Warnings! 12:00 Removing the PCB 13:16 Getting the PCB in a position to remove components 14:19 Removing the suspect component 15:07 Testing the component & replacing the component 17:42 Refitting the PCB 19:43 Power on - Fault still there! 20:35 Testing the supply again 21:25 Realisation that I forgot to check the fusible resistor 22:22 Checking and confirming it has failed 22:36 Fusible resistor replaced 23:00 Testing once more 22:52 Testing with a Signal Generator 27:21 Testing with a BBC Micro 29:35 Thanks and endroll #fixingstuff #repair #chaslarge #microvitec #cubmonitor #repairing You might like to support me on Patreon: https://www.patreon.com/bePatron?u=43... Please subscribe to the channel:    / @chaslarge   MUSIC: Google Library: Find Your Way Beat - Nana Kwabena Can I Tell You a Secret - TrackTribe GRAPHICS & ANIMATIONS: End: https://pixabay.com/users/tommyvideo-...