V1.0 Dec.2023analogue.co 8 / 11
Using Ten no Koe Bank (天の声バンク)
Originally, HuCard games could only save by
implementing passwords. The CD-ROM² upgrade
and later PCE Duo systems with a built in Super
CD-ROM² added a dedicated 2KiB RAM for saving
CD games and certain HuCard games. HuCard-only
systems could still save to this memory by attaching
a Ten no Koe 2 (天の声2) or Backup Booster backup
device.
Normally, games had to contend with other games
for storage space within this 2KiB RAM. Analogue
Duo provides an exclusive 2KiB to any game which
accesses this RAM and will save backups of this
RAM to SD card.
If you wish to use a Ten no Koe Bank (天の声バンク)
card to transfer backup RAM data from Analogue
Duo to an original system, follow this procedure:
1. Insert the Ten no Koe Bank card in Duo, then
Play Game followed by Quit Game.
2. Remove the SD Card from Duo, insert it into
a PC or Mac and navigate to \Saves.
3. Note the name given to the save le for the
Ten no Koe Bank card and delete the le.
4. Find the save le of the game of the game
you want to transfer to the Ten no Koe Bank card
and rename the le to the lename given for the
Ten no Koe Bank card.
5. Reinsert the SD card in Duo, play the Ten no
Koe Bank card again and copy the Backup RAM to
the Ten no Koe Bank card using the card’s built-in
copying program.
Note that Ten no Koe Bank cards contain battery
backed RAM and the original batteries may be
expired preventing normal function.
Using Memory Base 128
Alternatively, Memory Base 128 has user-
replaceable batteries, but unlike the Ten no Koe
Bank card requires Super CD-ROM² or Arcade
CD-ROM² enhanced systems on both ends of the
transfer. The Memory Base 128 can backup the
complete contents of the internal 2KiB save RAM.
The procedure is similar:
1. Find the name of the save le of the game
whose save content you wish to transfer (“game 1”).
2. Find the name of the save le of the game
which will perform the transfer (“game 2”).
3. Relocate the save le for game 2 temporarily
and rename the game save of game 1 to the name of
game 2.
4. Play game 2 and run its copying program.
Note that not all games may allow the transfer
of the entire internal 2K backup memory to the
Memory Base 128’s memory and may only allow
their own games to be transferred. Private eye dol is
one game which allows a full backup of the internal
memory to be made.
Using Original System Cards
Analogue Duo supports original NEC System Cards
as well as Games Express Green & Blue Cards.
Supported features include CD audio, CD+G
playback, and the original CD BIOS versions.
1. Insert the original System Card into the
HuCard slot. If recognized, the OS menu will
display “Using System Card”.
2. Insert and play the CD. The original System
Card will be used automatically.