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Entering Service Mode On A Hi-MD Player

Christopher

By Christopher,
in Essential Hi-MD info/FAQ's.

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Embio Newbie

Embio

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Hi people.

Here is the first version of the service mode names and values from my MZ-NHF800 (European Model). There are some intersting things, though one that stands out to me is:

AUDIO #115 which is called 'VolMax' and has the value 1E, which in decimal is 30 and surprise surprise, is the maximum volume level for the unit!

I anticipate a hack.....  biggrin.gif

thats volume though, am i right in thinking if that was increased all we would get is steadily worse sound quality?

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aoix Newbie

aoix

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thats volume though, am i right in thinking if that was increased all we would get is steadily worse sound quality?

At this subject, on european model (3mW x2) the maxinum volume is 30 (in the user menu) but in the other model (US, world tourist...) what is the maximum output and the maximum value in user menu?

And have you see the effect of group key on a value of service menu! (not dangerous) after some push on this key you can see the "name" of value.

And have you see the effect of T-mark key on a value of sevice menu (it's possibly dangerous)

the screen display "000000" with the first zero blinking.

You can move on the four first zeros with the key "navi" and you can change the blink zero with the vol+ vol- key... this change on this zero have an impact on the two last values blink.gif

With a push on cancel key, you can jump to the two last zero. and change directly the value.

To exit of this sreen, you push on T-mark key, to return in standard view.

I test it on the value AUDIO 115 and AUDIO 116, an dif you change value of zeros, MD lost it if the power is removed. the values of zeros are always zero!!

I hope to you understand me and my very good english. wacko.gif

Hacker community! UNITE! biggrin.gif

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Davew Newbie

Davew

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aoix

I have found exaclty the same thing when browsing the service area, If I change the "000000" from T MARK it seems not to remember it. I still have no idea how to store the change volume value.

For your table, I got my values:

With no battery and with the power supply.

volume: unsure. sound: normal. rec mode: PCM. sync: off

group rec: off. menu mode: advanced. AVLS: off. beep: off.

disc mem: ?? quick mode: off (I think) discmode: Hi-MD

contrast: center. and jogdial: default

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Davew Newbie

Davew

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On my '800 remote (RM-MC39LT) I have the extra buttons:

Group +/-

Display

Play Mode

Sound

I have tried the remote in service mode and it does work. But I don't think any of the extra keys help in saving the value. Maybe Sony have limited changes to presets in these new units? I hope not!

Also, aoix, do you need any more info from me for your compare text file?

Dave

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aoix Newbie

aoix

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Also, aoix, do you need any more info from me for your compare text file?
If you can and if you have the time (lot of time)...YES, firstly the values of "design" menu and after, the values of all menus...

Can you see values after 920 in "6 HiMD3" because me, I can't see it...

but the actual big question is, what is the methode to save the hacked value??

and an other thing, this morning, I enter in service mode and I find a new screen (I don't know it), it's not the classical blinking screen on start of service mode...

On this screen you can test all keys. you push on a key and the name of key show on screen. it's useless ok, but I don't know what I make to discover this screen wacko.gif I suppose that I make a bad sequence?? but if you open the door of you MD, you return to the classical blinking screen.

Hackers, if you know what is the methode to acceded a this screen, post a post....lol biggrin.gif

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streaml1ne Newbie

streaml1ne

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If you can and if you have the time (lot of time)...YES, firstly the values of "design" menu and after, the values of all menus...

Can you see values after 920 in "6 HiMD3" because me, I can't see it...

but the actual big question is, what is the methode to save the hacked value??

and an other thing, this morning, I enter in service mode and I find a new screen (I don't know it), it's not the classical blinking screen on start of service mode...

On this screen you can test all keys. you push on a key and the name of key show on screen. it's useless ok, but I don't know what I make to discover this screen wacko.gif I suppose that I make a bad sequence?? but if you open the door of you MD, you return to the classical blinking screen.

Hackers, if you know what is the methode to acceded a this screen, post a post....lol biggrin.gif

This would probably be handy if someone were developing a 3rd party remote for these units *nudge nudge* *wink wink*

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Davew Newbie

Davew

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aoix:

yes I will post my other values, I didnt get the all before becuase I only took the ones I thought would be most important at the time.

I have no idea how to save the hacked value?

Also, I have found several new screens (including the one that you have found, and I know how to get there) which I will post later when I have updated my text file.

Will let you know when this is done,

Dave

Edit:

Ok I now have the new screens and the POWER menu up

here more will come later...

Edited by Davew
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bootsy Newbie

bootsy

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Hello, i check in my mz-nf610, there is same manu audio and i also can't save in it, in other menus i can save by press "pause".

So this is not only hi-md players problem.

Maybe there is something like write protected and we must to change other value to make changes??

Edited by bootsy
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bootsy Newbie

bootsy

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If you press play o rec button it will starts "Sound Skip Check Result Display Mode" This set can display the count of errors that occurred during the recording/playing for checking.

This is trom another model, pre-hi-md so some button may got another funcion.

post-4988-1105737897.jpg

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aoix Newbie

aoix

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Hi, good WE??

Well, I make a third text file to compare all values of all menus beetween the dawev's nhf800 and my nh600.

We have 868 values, and we have 217 values that are diferente!! good luck to find the good values to change it... sad.gif

What is the name of hacked values on older MD?

Bootsy, what is your manual exactly that you can post some extracts?

edit: it's better with the text file link.... tongue.gif

http://aoix.free.fr/himd/compare_all_values.txt

Edited by aoix
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Davew Newbie

Davew

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nice one aoix!

still no idea how to change some of the values?

There seem to be several names/values that are duplicated over and over again in MD, HiMD1 and HiMD3. But some things have obvious function like moving the lens up and down and moving the laser left and right.

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aoix Newbie

aoix

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Does it exist a hack for the European MZ-NH700 ?

Thanks.

It is the goal of this topic, find an hack for MZ-NH models...no hack avialable yet!

If you want participate at our research, send your service mode values happy.gif

For info, I update my compare text file. it is a file where you find all data that we found....the link is in my signature.

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Davew Newbie

Davew

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Hey, I am making progress with the AUDIO section, unfortunately I think it is unlikely to produce and hacks sad.gif but is interesting anyway.

(I will add all this to my file when I've confirmed it all and got feedback)

OK, I have come to the conclusion that the AUDIO section is for diagnosis only and no changes can be made to the operation of the unit.

Warning: if you are going to do this then have your head/earphones within hearing range and NOT IN YOUR EARS to start with.

[111: LR1kHz 1C] plays a 1kHz tone on both channels, you can change the volume in real time by making the '1C' bigger or smaller, to a maximum of '1E' in my euro model.

[112: L 1kHz 1C] & [113: R 1kHz 1C] same as above but the tone is mainly on the L or R channel as appropriate.

[115: VolMax 1E] plays a tone at maximum volume (this is why I say not in your ears) you can change the '1E' but it makes no difference to the volume.

[116: AvlsOn 0E] same as above but plays the tone at the AVLS cut-off volume.

[117: Beep CC] plays the BEEP tone continuously.

[121: Lo iMa 15] & [122: Ho iMa 1C] & [123: Lo iAt CC]

when you plug a microphone in, the 'i' changes to 'Mi'

when you plug a line in, the 'i' changes to 'Li'

I don't know about digital input. Can someone try this??

I seem only to be able to hear the microphone/line input on #122 and #124 (SensLo)

and on #122 you can change the '1C' to adjust the volume level.

[131: WrtAGC 00] you can switch between '00' and '01' and then press PAUSE and the disc icon flashes to show it did something. I think that it sets Auto Gain Control ON (01) or OFF (00) for the purposes of the diagnosis session.

cheers, Dave

Edited by Davew
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aoix Newbie

aoix

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Hey, I am making progress with the AUDIO section, unfortunately I think it is unlikely to produce and hacks  sad.gif  but is interesting anyway.

(I will add all this to my file when I've confirmed it all and got feedback)

OK, I have come to the conclusion that the AUDIO section is for diagnosis only and no changes can be made to the operation of the unit.

Warning: if you are going to do this then have your head/earphones within hearing range and NOT IN YOUR EARS to start with.

Good work davew, I don't work on my MD today because my baterry is discharged sad.gif

I suppose that menu:

- MD1 correspond to old MD 74 or 80,

- HiMD1 correspond to old MD reformated in HiMD,

- and HiMD3 correspond to new HiMD of 1Go.

Are you agree with me?

And also, I suppose that these 3 menus MD1, HiMD1 and HiMD3 are userless for our goal, what is the new fonctionnality that we can found in this menu of configuration of each media mode?? I don't know... In futur, if a 2Go HiMd media are avialable, ok, it's possible that these menus will became very interresting menus.

People, what are news functionnality that you want add to your HiMD?? personaly, it's the "release" function, to have an more accuracy T-mark editing.

I think that the effort will be focused on menus MANUAL, NV, NORADJ and, DESIGN.

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Davew Newbie

Davew

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I aggree with you aoix, I think that MD, HiMD1, HiMD3 are concernced with the mechanical/physical properties of the unit and of each type of disc. Also I think we can rule out AUDIO as hack-standard, but we shouldn't completely forget about it. (I will add my discoveries to my text file later)

I would like to add maybe the Program play mode to my 800 if that can be done through service mode. Also, yes, I think we should focus on the MANUAL

I think that the effort will be focused on menus MANUAL, NV, NORADJ and, DESIGN.

Yes this is where we should focus cool.gif

NV: Non-Volatile memory?

NORADJ: NOR-Adjust? (don't know about the 'NOR' any suggestions?

The user settings like Beep on/off and Display Contrast etc are presumably stored in the NV memory?

Should we start by looking for these?

I wonder if Sony have hidden the firmware away in special NV memory that can't be accessed so that people like us *can't* go changing the software values and upgrade our units without paying? (It would be the sort of thing they would do mad.gif )

But anyway, lets get hacking!! biggrin.gif

Dave

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Embio Newbie

Embio

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I suppose that menu:

- MD1 correspond to old MD 74 or 80,

- HiMD1 correspond to old MD reformated in HiMD,

- and HiMD3 correspond to new HiMD of 1Go.

Are you agree with me?

I agree that MD1 is the original media, but the reformatted discs have 303MB, whereas the new 1gb discs have...well.... 1 gig. Maybe the other two are the other way round?

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aoix Newbie

aoix

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Hi,

I am ok with you Dave, for your analyse of AUDIO menu, I test it yesterday. I have same result that you. but I can't test MIC input (I haven't it on my nh600) and also I can't test digital in, because I haven't optical cable. To understand the name of value, you can read an old service manual, besause a lot of value have the same name...

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Davew Newbie

Davew

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Thanks aoix I will add that information to my file now. minidisc.org have service manual pdfs, and I will have a look at them to see what else I can find out. I suspect that a Digital / Optical input would be 'Di' or 'Oi' because Line is 'Li' and Microphone is 'Mi'

Edited by Davew
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dex Otaku Newbie

dex Otaku

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[131: WrtAGC 00] you can switch between '00' and '01' and then press PAUSE and the disc icon flashes to show it did something. I think that it sets Auto Gain Control ON (01) or OFF (00) for the purposes of the diagnosis session.

cheers, Dave

It would be interesting [and highly useful] if it were possible to force manual levels to be on by default by changing one of these.

[i.e. turning AGC off by default]

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Davew Newbie

Davew

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I have updated my file with the AUDIO info, and some new info on one of the small menus at the top. dex, unfortunately there is nothing in the AUDIO section that can set Manual as the defualt recording volume, since it is for real-time diagnosis only. However, it is still possible that we will discover how to change it somewhere else happy.gif

aoix, the manual recording volume can be set at a specific number, and although the unit defaults back to AGC, it does remember the manual volume level. I wonder if we could set it at a certain level, 29 for instance, then look for '1D' in service mode (or whatever number the volume is) ??

Dave

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aoix Newbie

aoix

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aoix, the manual recording volume can be set at a specific number, and although the unit defaults back to AGC, it does remember the manual volume level. I wonder if we could set it at a certain level, 29 for instance, then look for '1D' in service mode (or whatever number the volume is) ??
yes Dave, I see the same things... when I change a volume value on Audio menu, the unit remember it if you rest on sevice menu, if you quit menu, the value is lost. but I suppose that it's very useless four our goal. wink.gif
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aoix Newbie

aoix

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yeah I think we should forget about the audio menu being much use.

can you remember at all what volume setting you had the record volume (manual) set to when you got your service mode values?

heu.. sorry, I have write a bad explanation, the volume value on sevice mode haven't a link with the value of volume on clasical use of your unit. When you enter on sevirce mode, the volume value "AUDIO 111" is allways "1C" (28/30). If you change one of values 111 , 112 , 113 or 114 , if your watch this 4 values, you see the same value.

This the same thing with values 122 and 124. If you one, the two are also changed.

I hope that I was comprehensible. wacko.gif

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aoix Newbie

aoix

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I have updated my '800 file with new info from HIMD3:

920: Srv On (and onwards, which you couldn't get, aoix)

310: Srv On (and onwards)

You can only get into these menus when you have a 1GB disc inserted.

Dave

Cool, I test it this evening, I don't have with me a 1Go HiMD... I update my text file with your values. But, an other thing, I don't know if you have allready see that the MD and de HiMD media are physicaly diferent!! See the lock of media...

on MD the first hole is full to write on MD and it's empty to protect your MD. the second hole is always empty...

on HiMD the first hole is always empty en the second hole is full to write on HiMd and it's empty to protect it.

I make a little test on a old reformated MD, I protect my MD and I stop the second hole with Scotch tape to copy the cogifuration of 1Go HiMD... I test to record on MD... and it's ok!! I hear the recorded sound (hi-sp)! The next test is to format an old MD with the 1Go config. ph34r.gif

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Davew Newbie

Davew

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aoix

in the service mode:

MD1 = old MD

HiMD1 = old MD reformatted

HiMD3 = new 1Gb MD

(I am almost certain that this is true becuase the new menus I posted yesterday can only be acessed with a 1Gb disc and not a reformatted old MD)

So, I took a MD1 disc and used sticky tape to make it look like a HiMD3 disc.

I then put it in my unit and it acts like a MD1, so then I reformat it to a HiMD1

disc and here is the interesting thing:

my unit knows it its a standard disc (not 1Gb) becuase it shows 269.3 Mb free disc space. BUT, it doesn't know how many minutes recording time is avaliable on the disc!!

It just shows '---:--' in the display for RecRemain. But when i remove the sticky tape again, it can tell me how many hours of recording on the disc.

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aoix Newbie

aoix

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So, I took a MD1 disc and used sticky tape to make it look like a HiMD3 disc.

I then put it in my unit and it acts like a MD1, so then I reformat it to a HiMD1

disc and here is the interesting thing:

my unit knows it its a standard disc (not 1Gb) becuase it shows 269.3 Mb free disc space. BUT, it doesn't know how many minutes recording time is avaliable on the disc!!

It just shows '---:--' in the display for RecRemain. But when i remove the sticky tape again, it can tell me how many hours of recording on the disc.

yes, I can see the same info

HiMD1 protected

RecRemain ---:--

free space 3.3MB

HiMD1 unlocked

RecRemain -00:40 (in hi-sp)

free space 3.3MB

HiMD1 protected + stikly tape (unlocked HiMD3 config)

RecRemain ---:--

free space 3.3MB

HiMD1 unlocked + stikly tape

RecRemain -00:40 (in hi-sp)

free space 3.3MB

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