72 Troubleshooting
Figure 3-17. Initialization and Factory Preset Replacement Program Listing (Sheet 6 of 6)
Disassembly Procedures
The following paragraphs provide instructions on how to disassemble various components of the power supply. Once
disassembled, the components can be reassembled by performing the disassembly instructions in reverse order.
SHOCK HAZARD. To avoid the possibility of personal injury, turn on AC power and disconnect the line
cord before removing the top cover. Disconnect the GPIB cable (for 664xA & 665xA models), and
any loads, and remote sense leads before attempting disassembly.
Most of the attaching hardware is metric. Use of other types of fasteners will damage threaded inserts.
Refer to the list of required tools when performing disassembly and replacement.
2540 READ Cal_dest_addr(I)
2550 NEXT I
2560 !
2570 RESTORE Fact_cal_len
2580 FOR I=1 T0 9
2590 READ Cal_length(I)
2600 NEXT I
2610 !
2620 FOR I=1 T0 9 ! Locations of good data
2630 OUTPUT @Ps;"DIAG:EEPR?";Cal_sour_addr(I);",";Cal_length(I)
Read good data
2640 ENTER @Ps;Cal_data$ ! Enter good data
2650 OUTPUT @Ps;"DIAG:EEPR";Cal_dest_addr(I);",";Cal_length(I);",";Cal_data$ !
Write good data to factory preset locations
2660 NEXT I
2670 !
2680 !
2690 Cal_off
2700 CLEAR SCREEN
2710 OUTPUT @Ps;"CAL:STATE OFF" ! Turn off cal mode
2720 !
2730 GOSUB Ps_error ! Check for errors
2740 IF Err THEN
2750 PRINT "An error occurred during the EEPROM read/write, Check for"
2780 PRINT "programming errors. Initialization data may be incorrect."
2770 STOP
2780 END IF
2790 !
2800 PRINT "Operation complete. Program stopped."
2810 STOP
2820 !
2830 Ps_error: ! Error handling subroutine
2840 OUTPUT @Ps;"SYST:ERR?" ! Check for errors
2850 ENTER @Ps;Err
2860 RETURN
2870 !
2880 END
To Next Page
Loading...
Need help?
General
