Page 3 - Contents
Contents 1. Overview ...................................................................................... 1 2. Maintenance Menu ....................................................................... 2 1 ) MONITOR display ...............................................................................
Page 7 - Fig.4 COMPASS display; ) R MONITOR display; “Rate sensor Monitor” display shows rate sensor errors as below.
3 Shows difference between GPS and rate sensor. Shows an error. 1: error, 0: no error 1 normally Factory use Factory use 2) COMPASS display MASK-EL is used to set a minimum elevation angle of the satellite. The satellite of which elevation angle is lower than MASK-EL is not used for heading calculat...
Page 9 - Fig. 8 Rate error display
5 Number of consecutive errors (For example, an error message appears with three consecutive ROL errors.) 5) RATE ERR display This menu sets the level to trigger the heading error alarms; NO HEADING OUTPUT and RATE ERROR. The system compares the output of the angular rate sensor with one obtained by...
Page 10 - Figure 12 shows an example of Antenna Monitor display.; Elapsed time; Fig.12 ANT MONI display; ALARMS
6 7) ALARM display This menu sets the ALARM port signal. When ALARM MODE is set to “STOP,” the alarm signal is not sent out after acknowledgement. When selected “Continue,” the system continues to output the alarm signal. 8) ANALOG display This menu is used to test and compensate the motion sensor o...
Page 12 - Tracking error rate
8 10) MESSAGE display Error messages appear in the display. If RATE ERROR! appears, first check Installation Setup menu for correct setting: “Mounting” method and “Direction.” Fig.14 Error Message display 11) REC MONI menu The REC MONI display, Figure 15 shows whether the system works normally or no...
Page 13 - SOFTWARE VERSION
9 3. Replacement of Battery The processor unit has a battery which backs up the RAM contents when the power is removed. When the voltage of the battery drops to 2.5 V, the message “BATTERY!” appears on the screen. To check the message, press [MENU] key and choose “MESSAGE.” The lifetime of the batte...
Page 14 - To upgrade the program on the MAIN board
10 5. Program Upgrade The three programs are used for the SC-50/110. Two programs are used in the processor unit and one program is in the display unit. The program numbers are tabulated below. Note that the program number of SC-50 is the same as SC-110, but they are different. The program for SC-50...
Page 15 - To upgrade the program on the CPU board
11 2) CPU board (Display unit) To upgrade the program on the CPU board; 1. Connect the serial port of the PC to J15 on MAIN board in the processor unit. 2. Turn on the PC. Do not as yet turn on the SC-50/110. 3. Click the SCUP.bat file in the SC-50/110 program file. 4. Turn on the SC-50/110 after th...
Page 16 - Line voltage check; Line voltages are checked at J3 on the MAIN board.
12 6. Maintenance 6.1 Adjustment 1) PWR board Switching regulator frequency is adjusted on PWR board, 20P8181 as below. Test Point GND Rating Adjuster TP2 TP1 120.0 kHz ± 10 kHz VR79 TP5 TP3 120.0 kHz ± 10 kHz VR80 2) MAIN board Vcc-c supply voltage to Rate sensor is adjusted by VR96 on MAIN board, ...
Page 17 - Location of Parts; PWR Board; Fig. 17 Processor Unit with cover removed; TP3 TP4 VR80 VR79 (not shown)
13 7. Location of Parts Rate Sensor (Default: Pitch) GPS Receivers (1, 2, 3 from Top) Rate Sensor (Default: Roll) Rate Sensor (Default: Yaw) Main Board (20P8178) PWR Board (20P8181) Fig. 17 Processor Unit with cover removed Fig.18 PWR Board, 20P8181 TP2 TP1 F1, 3A TP3 TP4 VR80 VR79 (not shown) TP4
Page 19 - Appendix 1 Protection of ICs in Data Output Circuit; Refer to Appendix 2 for permanent remedy.; Symptom; screw fixing the MAIN board. See the attached sheet.; Factory-modified sets; Zener diodes added
15 J2 to J7 Appendix 1 Protection of ICs in Data Output Circuit Appendix 1 describes how to prevent ICs in the data output circuit temporarily. Refer to Appendix 2 for permanent remedy. Symptom U1, U2, and U3 in the heading output circuit are damaged. Cause Ground potential difference - The cable sh...
Page 20 - Fabrication of Signal Cable; the armor. The installation manual will be revised.; Twist and cut
16 1. Fabrication of Signal Cable The signal cable is fabricated as below. DO NOT hold back the cable shield over the armor. The installation manual will be revised. 80 80 40 70 70 40 Twist and cut . Armor FV1.25-M3 Solder Grounding wire Remove coat for clamping. FV1.25-M3 Armor Grounding wire Fig. ...
Page 21 - Fig. 3 Connection of grounding wire
17 2. Grounding Cable Shield Ground the cable shield or grounding wire to the chassis by using the screw fixing the MAIN board, 20P8178 to the chassis. Fig. 3 Connection of grounding wire
Page 22 - Adding Zener Diodes; Type: RD9.1EB3-T4
18 3. Adding Zener Diodes Zener diodes are added to the data output circuit as below. 1. Fabricate the diode as shown in the figure below. Type: RD9.1EB3-T4 C/N: 000-138-700 Fig. 4 Fabrication of zener diode 2. Remove the coat and solder the diode. See Fig. 5. 3. Do the same for other pins and other...
Page 24 - Appendix 2 Modification on Data Output Circuit; changed from 4 pins to 5 pins for the connection of cable shield.; Before modification; Fig.1 Connection on DATA OUT port
20 Appendix 2 Modification on Data Output Circuit Appendix 1 describes the tentative remedy to prevent U1, U2, and U3 in the heading output circuit from being damaged. Following modification (Table below) is the permanent remedy. The connector is changed from 4 pins to 5 pins for the connection of c...
Page 25 - 演算部
APPROVED CHECKED DRAWN DWG.NO. MODEL UNIT SC‑501/1101 演算部 PROCESSOR UNIT SC‑50/110 S. kubota T. Yoshida 0 6 S ep. 2005 0 6 S e p. 2005 0 6 S ep. 2005 H.K uwamura C 7251‑E01‑A ブラインドフイルム B LIND FILM 20‑024‑2021‑2 (100‑310‑742) スポンジ SPONGE CRN L 90X W50 X T5 (000‑151‑ 402) ケイコクハリマーク ...
Page 26 - GPS
APPROVED CHECKED DRAWN DWG.NO. MODEL UNIT SC‑303‑T SC‑50 S.kubota T.Yoshida 06 Sep.2005 06 Sep.2005 06 Sep.2005 H.Kuwamura GPS クウチユウセンブ RADOME ANTENNA UNIT C 7251‑E02‑A F U N O ド ーム ウ エ ク ミヒ ン RADOME COVER ASSEM B LY SC‑303 (004‑378‑120) ド ームシタ ク ミヒ ン RADOME LOWER ASSEM B LY SC‑303 (004‑378‑...