Service Mode On a Sharp MM-MT15
and probably some other sharp MD's
First things first, Service mode is quite dangerous if you do not know what you are doing. I don't know about the laser cutting up your discs, but you may want to use an old, useless disc (60 min??), with some music on it. Make it a collection using the various recording modes of your machine, so you can really experiment. Also have a blank MD ready, to try and see if your unit can still record. And, before you change something, make a note of what it used to be and what it does. I guess everyone would like to know how to make their MD's even better ;-). One more thing: If you screw up, don't blame me. I will NOT be held responsible for any damage you or this document does to anything in the UNIVERSE, and its parallels. So if your laser IS cutting up your disc's, start saving...;-)
How to go in
To enter service mode, shut down the unit. Press Display & Enter/Sync together, and press Play. It will say TEST and display bios nr. Also, all LCD elements will be black for a sec.
When TEST appears,
Press Prev. Track/Next Track to move the head.
Press Display for some menu, I do not know what it does.
Press Bass to enter setup, and then:
Use Prev/Next Track to find a menu you want to change.
Just press play on a menu to enter it.
Press Display to leave the most sub-menus. Else try Stop.
NOTE: If the unit says something like ERR. ADJ. and doesn't want to do anything in a submenu, try AUTO1 and/or 2. That should fix it.
MENUS IN SERVICE MODE
AUTO1 This seems to have something to do with head adjusting and/or the disc. Maybe it just reads the disc AUTO2 Like Auto 1 T PLAY It seems to play the disk T REC It seems to record on disk (USE BLANK DISK!!!) MANU1 Like Auto 1, only manual MANU2 Like Auto 1, only manual RSLT1 I haven't got a clue RSLT2 I haven't got a clue DinMon Maybe it monitors your optical in E DATA I haven't got a clue NORMAL This is useful, it plays like standard, but you get more info from it. The meter is now a cache-monitor. EEPROM See below INNER Seems to be a TOC/Disc reader
EEPROM SETTINGS, from my unit. May be different on others.
DON'T CHANGE THESE UNLESS YOU KNOW WHAT YOU ARE DOING AND ONLY IF YOU HAVE BACKED UP YOUR SETTINGS ON A PIECE OF PAPER!!!!!!! YOU MAY CAUSE DAMAGE TO THE UNIT OR DISC, DON'T BLAME ME!!!
TEMP - Guess this has something to do with unit Temperature monitor
FOCUS - Lens Focus menu, DO NOT TRY THIS AT HOME!!!!
FG B0 FF1 70 FF2 E8 FZH ED FLn 0A DJG 14 FLV 33 WTf 20 FSS E9
TRACK - DUNNO
TG 48 TF1 70 TF2 E0 TFS 00 TBo 44 TBt 20 TKo 44 TKt 1D TDo 67 TDt 34 TGR 00 SCt 40 SCm 53 CLp 18 CLr 28 JPI 01 K10 65
SPIN - DUNNO
SPG 1A SPi E0 SPm A0 SPo 68 SP1 10 SP2 60 SP3 F2 SP4 F2 SP5 10 SPD 7F SPK EB
SLED - Probably the sled on which the head is mounted.
SLG DF SL2 20 SLM 7F SLV D7 SKk 72 SKt 70 SKm 78 WTm 24 MV1 4F MV2 AA SRV 0A
BASS - Now this is cool, edit your personal bass settings. give it a try! (VOL Up/Down edit the digit, press mode to change to the other digit. I really do not know what the numbers mean, but in any case, 00 means full off, like Bass-Off. BS1 is Bass setting 1, BS2 is 2, BS3 is 3.
BS1 3F BS2 1F BS3 E2
ADJSET - DUNNO
COK A0 DAT C0 TAT 3E CAT 20 FAB E0
DEQSET - Digital Equalizer????? Would be nice...
HQ1 90 HQ2 90 HSG 11 HSO FD LQ1 90 LQ2 90 LSG 11 LSO 00 GQ1 98 GQ2 84 GSG 11 FLp 08
CTRL - Keyboard layout I suppose.
CT0 05 CT1 11 CT2 7F CT3 30 RC0 C0 RC1 FE SYC A6 PWL 03 DR1 92 DR2 C8 IN1 D3 IN2 64 IN3 D2 INH 64 DRH C8 PLE 1B RCE 42 ELT 76 SLT 43 SPM 00 MSL 00 US0 00 US1 00 US2 00
What it all does? I haven't got a clue. Maybe I don't want to know, but for now:
Please, help me to find out about the rest of this HUGE list. EMAIL me at firstname.lastname@example.org
Michael ConnorI picked up a cheap Sharp MD-MT15 recorder today at a pawn shop and decided to see what I could do with the EEPROM settings in terms of changing the sound. I've read a number of comments that the Sharp has "stronger" bass than Sony machines -- this has been my experience, too, so I decided to see if I could get a "flat" output from it. I went into test mode, went to EEPROM settings, then to "DEQSET," and changed all the settings to hexadecimal "00" (except for FLp, because that's the only one that's not in the 7xx EEPROM, so I figured it could be something that the MT15 needs.) Well, it seems to have worked -- after comparing the sound before and after, and comparing the same disk to my wife's un-hacked Sharp 702, the hacked MD-MT15 has a much different sound to it, one that I personally prefer. The bass is not as emphasized nearly as much, and it gives a much clearer sound to the music overall, also more definition to things that were almost drowned out by the bass.