Master controller for Nikkodo / BMB CD-i karaoke systems. It is similar to the Philips CDI 181 MultiMedia Controller (JNMS). The mainboards of these units were made by Kyocera. They all lack optical disc drives and require additional units (e.g. CDI 180 for JNMS and CDI-A1500 for BMB).
So far, three different hardware generations have been found, and there may be more. The hardware has evolved from being very similar to JNMS to something that hasn’t been seen in other CD-i players. To identify different mainboards/generations, I use the first character of the serial number:
- A unit – mainboard PDCDG4001D
- L unit – mainboard PDCDG4002B (this WIP Page)
- V unit – mainboard PDCDG4003B
Resources
- Service manual: N/A
- Previous listings with more hardware
- BMB company history
Player shell
This unit has not yet been switched on, so there are currently no photos of the player shell. However, there are two images (stx.dyuv and rie_surf.dyuv) in the system ROM, possibly for calibration purposes.
PCBs and markings
The inspection of the PCBs has not yet begun.
PDCDG4002B (mainboard, front)
Back connectors
PSU Nichicon CI-1PS
The first visual inspection gives hope that this power supply unit is in better condition than the others.
CI-1PS
(ZSKY114G)
Ser. No. 013428.
INPUT:AC100-120V
50-60Hz
nichicon D JAPANTo-do
- Complete inspection of all PCBs and creation of chip marking lists.
- Inspection of the power supply unit and identification of all components, including those that can no longer be identified on the other PSUs
- Replacement of all electrolytic capacitors in the PSU.
- New power cable.
Credits
Many thanks to
– Zero for letting me have this unit
– ogarvey for converting stx.dyuv and rie_surf.dyuv
History
2025-02-28: Initial WIP Page published