Agilent keysight 34461A doesn't boot - Page 1
Forum section: electronics / repair

author: autorepair78
author_rank: Newbie
timestamp: January 06, 2023, 12:48:52 pm
content: I have bought faulty 34461A with fired main procesor spear320. After replaced procesor power on and now I see black-white screen Agilent Techologies and nothing more. I have connected putty by rs232 in back of front panel pins connector and I see there is probobly firmware problem. Does anyone could help to repair it?This is message from consoleU-Boot 2010.03 (Oct 09 2012 - 12:48:30)Agilent P510CPU: SPEAr320DRAM: 128 MiBUnknown id: 0xffffff. Using ST_M23P40Flash: 64 KiBNAND: INTERNAL ECC 128 MiBIn: serialOut: serialErr: serialSerNum:MY99999999Chip: AA Board Rev: 4init RTC: 2001-01-01 00:40:34.33Net: No ethernet found.splash RTC: 2001-01-01 00:40:35.36Press space to stop autoboot: 0NAND read: device 0 offset 0x320000, size 0x1000065536 bytes read: OK## Booting kernel from Legacy Image at 00600000 ...Image Name: PBOOTCreated: 2012-05-22 16:06:43 UTCImage Type: ARM Linux Kernel Image (gzip compressed)Data Size: 38780 Bytes = 37.9 KiBLoad Address: 00000000Entry Point: 00000000Uncompressing Kernel Image ... OKStarting kernel ...Debug serial initialized ........OKNo RTC on 320Microsoft Windows CE Bootloader Common Library Version 1.4 Built May 22 2012 09:09:57Microsoft Windows CE 6.0 Ethernet Bootloader for the Agilent P500 boardAdaptation performed by Agilent Technologies (c) 2008Reading NAND configurationfimage (3) is out of range. It must be a decimal integer between 0 and nimages (2)PHY not found.Press  to launch image stored in flash or  to cancel.Initiating image launch in 0 secondsSystem ready!Preparing for download...No RTC on 320Loading image 1 from memory at 0xD0400000BL_IMAGE_TYPE_UNKNOWNLoading image 1 failed, trying next oneLoading image 2 from memory at 0xD2200000BL_IMAGE_TYPE_UNKNOWNLoading image 2 failed, trying next oneAll images failedPress r to reset

author: Traceless
author_rank: Frequent Contributor
timestamp: January 06, 2023, 06:29:00 pm
content: Quote from: autorepair78 on January 06, 2023, 12:48:52 pmHi autorepair78,disclaimer I'm no expert in repairing DMMs but based on the above error messages you can see that your DMM tries to boot, successfully loads the kernel and then fails multiple times with the error BL_IMAGE_TYPE_UNKNOWN. This error messages could result from Windows not being able to read the boot logo (the custom Keysight logo)."fimage (3) is out of range. It must be a decimal integer between 0 and nimages (2)"indicates that a wrong value is read and there could have been a single bit-flip in the image header. A possible cause could be that the old, faulty CPU wreaked havoc or maybe the DMM also suffers from faulty flash memory (this seems to be a problem with the 34465As, especially if they haven't been turned on for a while). To solve this, the easiest way is probably to flash the OS image. I'm not sure if this is easily possible with newer Keysight Hardware due to DRM, you will also likely need specialized hardware to flash the OS image. Maybe someone else here has experience with that. In case reflashing the OS image fails, the memory in your meter may be bad and needs replacement as well.