Received a Philips HTS6520 for free however the subwoofer (and remote) is missing, no cables at all, so unable to use it because the sub also provides the power (read on to see what I have done).
fig 1: the unit
I think it very sad to throw such well made device (really, construction is beautiful) away, that is why I start to investigate the device if it is possible to create a new power supply for it. The connector is a weird one, never seen before, 13 PIN SQUARE DIN connector. Cannot find any info about this connector however it seems be used at car systems, for example to interconnect a bluetooth device. Anyone know the exact name of this connector?
fig 2. the connector
I found the service manual of the Philips HTS6520 and figure out the connection to the motherboard (not the pinout of the connector because there are no pin numbers on the connector itself specified) and the connector PCB itself can be removed. Really nice. After removing the connector, a 12 pin female header can be found on the motherboard that can be easily used to poke some cables in it and implement my own cable for it.
fig 3. the header on the motherboard
Done this by following this created pinout/schematic (using the service manual):
The +5V and +12v rails obtained from an old PSU (of another DVD player) lying around and that is working great! The unit is fully functional and can play CD's and DVD's. Used another Philips DVD player remote (found at a drift-store) and works fine however not all functions are available on the remote.
The -30V power is a problem, I used another power supply for it to create the -30V rail. The -30V rail is used to power the VFD display. It is 'working' however the display is very very dim.
What could be the reason? Do I missed something? Has it something to do with my PSU configuration? Current cannot be a problem, the adapter is rated 3A. The whole unit only consumes 14W, about 470mA max. Check the voltage, no voltage drop, stable 30V.
So what could be the problem, any ideas?
Service manual and other documentation can be found in this zip (46,8 MB)