Search found 11 matches

by Geert Jan
Fri Feb 10, 2012 7:34 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Geert Jan Laanstra's Image file/s
Replies: 13
Views: 103859

URL changed...

Hi All,

The URL is changed, due to shifts in group names....

ftp://ftp.sas.ewi.utwente.nl/Outgoing/JVC_HM-HDS1

GJ
by Geert Jan
Wed Aug 19, 2009 2:14 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Geert Jan Laanstra's Image file/s
Replies: 13
Views: 103859

Disk Images....

Hi Colin,

You need both of them.....

Good luck...

Geert Jan
by Geert Jan
Sat Apr 21, 2007 1:39 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Can't store tuner channels on the HM-HDS1
Replies: 5
Views: 44957

Changing EEprom

True.. I agree...

But there's more..

You also could try to make a copy of the content of the old one..
Try to program it in the new one.. ( a programmer is required )
Maybe that will solve it completely....
If you need more help .. tell me..

Geert Jan
by Geert Jan
Thu Apr 05, 2007 7:31 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Can't store tuner channels on the HM-HDS1
Replies: 5
Views: 44957

Can;t store channels..

Hi there,

Looks like the eeprom that stores the channels and settings is broken..
maybe you've got to replace IC3003 (AT24C08).
It;s an 8K bit EEprom from atmel.. commonly used in several other equipment, and shouldn't be hard to find..

good luck..

Geert Jan Laanstra
by Geert Jan
Wed Jan 17, 2007 8:01 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Cloning or backing up your JVC HM-HDS1 hard drive.
Replies: 49
Views: 375586

Hi Andy, TRFS : this name is used on the disk and in the firmware.... I've tried to find info on this one as well, but for now it looks like it's a custom filesystem.... (see debug rs-232 port output of my HDS1) ftp://sas5.el.utwente.nl/Outgoing/JVC_HM-HDS1/Firmware/Firmware_Startup_Maxtor.TXT maybe...
by Geert Jan
Wed Jan 17, 2007 4:34 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Cloning or backing up your JVC HM-HDS1 hard drive.
Replies: 49
Views: 375586

Hi All, The Firmware in ROM contains : - Bootloader - Realtime Kernel - MPEG Video/Audio Libraries etc... The Harddisk containts : - HDD VCR Firmware - MPEG Encoder Firmware - FAT partition with Intro Movie (moving HDS1 startup screen, see FTP server) - FAT partition with VCR INDEX - TRFS partition ...
by Geert Jan
Tue Jan 16, 2007 8:40 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Hacking around in the HDS1...
Replies: 3
Views: 28062

I've uploaded the pictures and the firmware of the HDS1 (40GB model).

w.r.

G.J.

Image
Image
by Geert Jan
Tue Jan 16, 2007 8:09 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: Hacking around in the HDS1...
Replies: 3
Views: 28062

Hacking around in the HDS1...

Hello All, I've got the USB Debug unit up and running.....(I'll post some pictures) Found out that some of the Decoders firmware is located on the harddisk, not only the encoder firmware..... At this moment I'm able to the following job : - detect flash make,type,model,etc.... - read flash memory, -...
by Geert Jan
Sun Mar 13, 2005 7:52 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: HDD locked up
Replies: 76
Views: 2152749

It Should work, the disk interface is downwards compatible...

G.J.
by Geert Jan
Sun Mar 13, 2005 5:30 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: HDD locked up
Replies: 76
Views: 2152749

Hi Ted,

You could try the maxtor tools available on their website.
Try PowerMax diagnostic tools. (drive model -> diagnostics).

Maybe this tool can recover your drive.....
Sometimes the bad sectors can be reallocated to spare sectors.
(if there still are some)....

good luck....

G.J.
by Geert Jan
Sat Mar 12, 2005 6:57 pm
Forum: JVC HM-HDS1 HDD/SVHS Recorder
Topic: HDD locked up
Replies: 76
Views: 2152749

It look's like you're disk is gone bad.... Try an other test program or try to create a file system with windows or linux on the disk with a full format. If the os reports bad sectors, you'd better replace it with another one. If you don't want to change the firmware, you'll need to keep with the sa...