Here is some basic info on Arsip Nasional in Jakarta:
Address: Jalan Ampera Raya No.7, Jakarta Selatan (+62 0217805851 ext. 128)
Hours: Monday – Friday: 8:30 – 3:30pm (Friday the archives are closed from 11:30-1:00pm). Closed on weekends.
Foreigners must have a research visa (izin penelitian) to enter the archives, but you might try working something out with the staff at the front desk if you are only in Jakarta for a few days. The linked document below lists all the information on the collections at the National Archives in Jakarta.
For additional information on the National Archives in Jakarta, please visit my detailed description on the Dissertation Reviews website: