Service manual

APPENDIX
SERVICE MANUAL Specifications
APP-1
APPENDIX A
Specifications
1. Electrical System
(1) Main PCB Size: 116 × 190 mm
(2) CPU: H8
(3) ROM: 3 Mbyte(5 fonts)
2 ~ 3Mbyte
(4) RAM: 512 Kbyte
(5) FDC: LG GM82C765B
(6) KB Matrix: 8 × 9
(7) Switch PCB Size: 58 × 49 mm
(8) Display (LCD): 480 × 64(DP-525CJ)
480 × 128(DP-530CJ)
640 × 400 (DP-540CJ/550CJ)
(9) Printer: Mono/Color
(10) CA Step Motor: Chopper Control
(11) LF Step Motor: Constant Voltage Control
(12) HP Sensor: Leaf Type Switch
(13) PE Sensor: Leaf Type Switch
(14) Auxiliary Memory: FDD (1.44 MB/720KB)
MFM form (MS-DOS format)
3. 5" 2HD, 3.5" 2DD