Technical specifications
| Formfactor | 8" |
| Capacity | 1.155 KByte / DSDD / (2 x 77 x 15 x 512 = 1.182.720 Byte) |
| Sides (Heads) | 2 |
| Tracks/Side | 77 |
| Sectors/Track | 15 |
| Byte/Sector | 512 |
| Height | 57 mm |
Signal lines
In contrast to the Mitsubishi M2896-63, the NEC FD1165-FQ requires the so-called „TG34/LOW CURRENT/WRITE CURRENT“ signal on line 2 (for writing). Reading is always possible"
The „Variable Frequency Oscillator“ (VFO) option does NOT work with the standard PC controller! Please set the appropriate jumper to READ DATA (RD).
Note! The NEC FD1165-FQ needs the TG43 signal on line 2 (for writing). For this reason it is best if you use the D Bit FDADAP floppy disk adapter for 8 inch drives. This adapter supports the TG43 signal (WRITE CURRENT) -> reduced write current for tracks greater then 43.
The basics for connecting an 8 inch floppy drive to a DOS PC are described here. Pictures of the NEC FD1165-FQ.
Manuals
The most important copies are listed below.
- Maintenance Manual (en), 10/1982 (see p. 2-14, 2.8.8, Read Data Pins (RD))
- Product Description (en), 04/1982