The Kawai & Teisco Analog Synths Group

Hi all SX210 players!
Now, i am a proud owner of this amazing synth too!
Mine one have several problems, but i think everything will be OK.
Strange, but outputs are broken, but i just need to replace the
connectors.. Anyone know tape output-input is a mono-jacks?
Battery still alive too, but i think i need to replace it with Lithium
one anyway.. 
Please, if anyone have experience in changing battery procedure in
SX210, let me know - is this possible to do without service manual?
Thank You!
Alien.