T520 Main PCA Board NEW

Easy Fix Fast < updated 11/1/25 One Year Exchange Warranty The part you will receive includes a One Year Exchange Warranty. It is verified to work without errors by me -- A HP Certified Technician trained to work on the HP DesignJet printers since 1995.   Different lot number part numbers reference the same part: CQ890-67023 CQ890-60251 CQ890-67097 I've had service calls on several T520 with similar error codes. The last one was BA7E70E6. The 'B' codes harkens back to the day when I routinely saw this type of error on the old 1050c\ 1055cm models. I used to tell customers you have the 'error code of death'. In more technical terms, the Main PCA Board has a defective chip or routine call somewhere on it and needs to be replaced. Replacing the (CQ890-67023 CQ890-60251 CQ890-67097) has resolved the error for me.   1 If you have a 59.2:19 error . . .   Enter service mode and do a hard reset.With the error on screen, try pressing the Power button continuously for 15 seconds.The