crwdns2933803:01crwdne2933803:0
crwdns2933797:0Pavel Hanakcrwdnd2933797:0crwdne2933797:0
crwdns2936043:0crwdne2936043:0 crwdns2933505:0crwdne2933505:0 Pavel Hanak
- crwdns2933769:0crwdne2933769:0
- crwdns2933771:0crwdne2933771:0
- crwdns2933801:0crwdne2933801:0
crwdns2933807:0crwdne2933807:0
| [title] Verify it's really mainboard fault I | |
| [* black] The electronics module is very complicated and many other things can fail. So you need to verify that your printer really has bad mainboard and not something else. | |
| - | [* black] Normally, the mainboard produces a short beep about 10 seconds after you powerup the printer. If it doesn't beep, then it's probably faulty. |
| + | [* black] Normally, the mainboard produces a short beep about 10 seconds after you powerup the printer. If it doesn't beep, then it's probably dead. |
| + | [* black] If the printer beeps more than once or beeps repeatedly, then the mainboard works, but something else failed (dead CMOS battery, bad memory or HDD etc.). In that case you can diagnose it like in Step 8. |
| [* black] Another indication is the front display - if it lits up but all pixels stay black like in the photo, then it's likely the mainboard is dead. If it doesn't light up at all, then there is some other problem (dead power supply, for example). |