Dumping/reverse engineering MSX models thread

Try KANJIROM.BAS (also available on the blueMSX site - http://bluemsx.msxblue.com)

Another possibility is that the Kanji ROM is non standard and used only by the firmware. How to launch the firmware anyway?

Maybe you have a modified machine (what should explain an additional ROM in slot 3-2):

Some other excepts from the (now gone) Japanese site:

ソニーＨＢ－Ｔ６００［株式ターミナル］　＆　ＨＢ－Ｔ７［通信パソコン］

　このマシンは本来キーボード別売で株式パッドが標準装備の変わり種であった。株式投資ソフト(FD)もついていた。でも多くのユーザーがＭＳＸだと知って結局キーボードも買ってしまう傾向にあり、ヤフオクでも半々の確率でキーボードがついてくる(爆)
　ＲＡＭ１２８ｋＢ＆ＦＤＤ付＆キーボードセパレートの上級機であり、モデム内蔵なのでパソコン通信機としても使える。
　株式用ゆえ漢字ＲＯＭも内蔵、しかもスロットは２つあるので拡張性もなかなか(笑)
　ＨＢ－Ｆ９００と実売価格差は少ないのに、ヤフオクでは価格が半額以下になっている…なんてこった (^^ゞ

　同じく通信に使えるＭＳＸ２には兄弟分のＨＢ－Ｔ７もある。こっちはＲＡＭ６４ｋＢと普通だが漢字ＲＯＭ搭載。
　ＦＤＤは付いていないが後にＨＢＤ－Ｆ１など安いＦＤＤが出まわったためあまり困らない
　これに限らずＭＳＸ２通信パソコンはすべて第１水準漢字ＲＯＭを標準搭載している。三菱ＭＬ－ＴＳ２Ｈに至っては第２水準も搭載
　モデム付なのでＭＳＸ２ホストソフト「網元さん」などで稼動するケースが多い。タマ数が少なくないのか、Ｔ７はヤフオクで時々出てくる。

Google translation:

　Sony HB-T600 [Stock Terminal] & HB-T7 [Communication PC]

　This machine was originally a variant of the keyboard sold separately and equipped with a stock pad as standard equipment. Stock investment software (FD) was also included. However, many users tend to buy a keyboard after knowing that it is MSX, and even Yahoo Auction comes with a keyboard with a half probability (explosion)
　It is a high-end machine with RAM 128 kB & FDD & keyboard separate, and a personal computer communication device because it has a built-in modem. Can also be used as.
　Since it is for stocks, it has a built-in Kanji ROM, and since it has two slots, it is quite expandable (laughs) Although the
　actual selling price difference is small with HB-F900, the price is less than half the price at Yahoo Auction ... (^^ ゞ

　MSX2, which can also be used for communication, also has a sibling HB-T7. This is a normal RAM 64kB, but equipped with a Kanji ROM.
　Although it does not have an FDD, it is not a problem because cheap FDDs such as HBD-F1 came out later.
　Not limited to this, all MSX2 communication personal computers are equipped with a first-level Kanji ROM as standard equipment. Since the Mitsubishi ML-TS2H is equipped
　with a modem equipped with the second level, it often runs on the MSX2 host software "Amimoto-san". Perhaps the number of balls is not small, T7 sometimes appears on Yahoo Auction.

It's maybe a database used by the firmware.

There are two visible words: KANDA and TAMRO.

KANDA = 神田 = place name in the northeastern part of Chiyoda-ku, Tokyo. https://ja.wikipedia.org/wiki/%E7%A5%9E%E7%94%B0_(%E5%8D%83%E4%BB%A3%E7%94%B0%E5%8C%BA)

TAMRO = TAMURO = タムロ seems to refer to Chinese food as 屯 （タムロ） - 神田/中華料理 [食べログ] means Tun-Kanda / Chinese food [tabelog]

Maybe it uses only kanas, and it would explain the removal of the Kanji-ROM....

Some detailed picture of the T600 and its daughterboard: