HP WIDE ULTRA320 SCSI Model: BD1468A4C5 PCB Problem

[datarikaviri]

Hello everyone
Can anybody help me about this drive which has PCB problem most probably. There are two HP scsi drive on picture and they have same PCB. Can anybody give me some advice about pcb, where are the fuses and diodes etc. Drives PCB is damaged because of my wrong power connection (5v to 12v and 12v to 5v most probably I'm not sure). Which component should be damaged in that situation.
Thank you for your help.

Attachments

[fzabkar]

Here is a similar thread:
http://forum.hddguru.com/viewtopic.php?t=31189&p=216551

Start by measuring the 5V and 12V TVS diodes and their associated fuses.

See http://www.users.on.net/~fzabkar/HDD/TVS_diode_FAQ.html

Attachments

5V_TVS.jpg (135.27 KiB) Viewed 7187 times

12V_TVS.jpg (97.5 KiB) Viewed 7187 times

12V_fuse.jpg (158.09 KiB) Viewed 7187 times

[datarikaviri]

Thank you very much for your fast reply fzabkar. I have another question about this drives. Do you know is it possible to PCB replacement between this drives? Their model numbers are same. And what do you think about adaptive data or ROM solder desolder?

[fzabkar]

Do you know is it possible to PCB replacement between this drives? Their model numbers are same. And what do you think about adaptive data or ROM solder desolder?

Sorry, I don't know.

[scratchy]

The ROM is the TSOP48 device near the connector. Next to the processor

[fzabkar]

The ROM is the TSOP48 device near the connector. Next to the processor

I believe that the OP wants to know whether the flash memory needs to be transferred from patient to donor. That said, it would be easier to desolder a TVS diode and replace a fuse, assuming that is where the problem lies.

[datarikaviri]

Thank you very much guys, I have never seen HDD which used tsop 48 chip for ROM. Now Im going to change TVS and fuses firstly. If it doesnt work Im going to try changing PCB with rom desolder/solder. Does anybody know is there any other component on PCB which has adapdive data and I have to desolder it?

[fzabkar]

Instead of changing the components, test them first.

I tried to find a ROM example in the HDD Guru Files section, without success.

HYDATA DRT-SCSITOOL Server HDD SASFCSCSI Firmwares:
http://files.hddguru.com/download/HYDATA%20DRT-SCSITOOL%20Server%20HDD%20SASFCSCSI%20Firmwares/

Instead I found a firmware update:
ftp://ftp.hp.com/pub/softpaq/sp38501-39000/sp38683.tar.gz

The payload file, S3146707W3.frm, contains a data section which appears to define 9 sections in the ROM.

Code:

Offset(h) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F

000796F0              A0 BF 01 00 00 00 F8 0F 00 00 00 00
00079700  00 00 00 00 00 00 02 01 60 C0 03 00 A0 BF F9 0F
00079710  A0 BF 01 00 A0 BF 01 00 00 00 02 01 00 6C 01 00
00079720  00 80 FD 0F 00 80 05 00 00 80 05 00 00 00 02 00
00079730  00 10 00 00 00 EC FE 0F 00 EC 06 00 00 EC 06 00
00079740  00 00 02 00 00 01 00 00 00 00 FF 0F 00 00 07 00
00079750  00 00 07 00 00 00 02 01 00 8E 00 00 00 01 FF 0F
00079760  00 01 07 00 00 01 07 00 00 00 02 01 00 04 00 00
00079770  00 8F FF 0F 00 8F 07 00 00 8F 07 00 00 00 02 04
00079780  00 01 00 00 00 93 FF 0F 00 93 07 00 00 93 07 00
00079790  00 00 02 00 00 6C 00 00 00 94 FF 0F 00 94 07 00
000797A0  00 94 07 00 00 00 02 01

Here is how I interpret the "table":

ROM sections

Code:

A0BF0100 0000F80F 00000000 00000000 00000201       0 - 1BF9F  1BFA0
60C00300 A0BFF90F A0BF0100 A0BF0100 00000201   1BFA0 - 57FFF  3C060
006C0100 0080FD0F 00800500 00800500 00000200   58000 - 6EBFF  16C00  empty
00100000 00ECFE0F 00EC0600 00EC0600 00000200   6EC00 - 6FBFF   1000  empty
00010000 0000FF0F 00000700 00000700 00000201   70000 - 700FF    100
008E0000 0001FF0F 00010700 00010700 00000201   70100 - 78EFF   8E00
00040000 008FFF0F 008F0700 008F0700 00000204   78F00 - 792FF    400
00010000 0093FF0F 00930700 00930700 00000200   79300 - 793FF    100  empty
006C0000 0094FF0F 00940700 00940700 00000201   79400 - 7FFFF   6C00  empty
--------------------------------------------   -------------  -----
size     memadd   offset                      address range   size

AISI, the 4 empty sections could be reserved for adaptives.