HP M177 color MFP

**Zesti** · 04-07-2021

Hi,
Have this HP M177FW mfp with a dead display. No indicator lights and no display. The power ON button does works and printer turns on and even prints. Initially checked panel but nothing was obvious then checked the Formatter board and found an IC U11 burned and part no is unreadable. Its seems to me some DC voltage regulator. Any one can share the exact part number of U11 component?
A board snap is attached for reference.

**Phil B.** · 04-07-2021

Originally Posted by Zesti

Hi,
Have this HP M177FW mfp with a dead display. No indicator lights and no display. The power ON button does works and printer turns on and even prints. Initially checked panel but nothing was obvious then checked the Formatter board and found an IC U11 burned and part no is unreadable. Its seems to me some DC voltage regulator. Any one can share the exact part number of U11 component?
A board snap is attached for reference.

HP does not condone techs doing board level repairs...just swap the whole board.

**Zesti** · 04-08-2021

Already doing this, just curious!!!!
Found part No. RIJOH or R1J0H now searching for this SMD code..... Basically I'm an electronics engineer so that's why a bit curious.
Anyways thanks...