3.If ERR 581 or ERR 582 appears, the fault is most likely caused by the Cal Oscillator. Refer to errors 581 and 582.

4.If ERR 581 or ERR 582 does not appear, troubleshoot the A5 IF assembly.

Multiple IF Errors During IF adjust: If a FULL IF ADJ sequence (pressing ICAL) and FULL IF ADJ ) results in IF errors while displaying IF ADJUST STATUS: AMPLITUDE, A4 Cal Oscillator might not be providing the correct output signal. Perform the following steps:

1.Disconnect W30 (white) from A5J4.

2.Connect W30 to the input of a second spectrum analyzer and set its controls as follows:

Center Frequency. . . . . . . . . . . . . . . . . . . . . . . . . . 10.7 MHz

Reference Level . . . . . . . . . . . . . . . . . . . . . . . . . . . -30 dBm

3.Observe the spectrum analyzer display while pressing FULL IF ADJ on the spectrum analyzer. If a -35 dBm signal does not appear, troubleshoot the A4 Cal Oscillator.

4.If a -35 dBm signal does appear, troubleshoot the A5 IF assembly.

405 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in first XTAL pole.

406 RBW 1OK Unable to adjust 10 kHz Resolution Bandwidth in second XTAL pole.

407 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in third XTAL pole.

408 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in Fourth XTAL pole.

409 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in first XTAL pole.

410 RBW 1OK Unable to adjust 10 kHz Resolution Bandwidth in second XTAL pole.

411 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in third XTAL pole.

412 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in Fourth XTAL pole.

413 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in first XTAL pole.

414 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in second XTAL pole.

415 RBW 1OK Unable to adjust 10 kHz Resolution Bandwidth in third XTAL pole.

416 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in Fourth XTAL pole.

417 RBW 3K Unable to adjust 3 kHz Resolution Bandwidth in first XTAL pole.

418 RBW 3K Unable to adjust 3 kHz Resolution Bandwidth in second XTAL pole.

419 RBW 3K Unable to adjust 3 kHz Resolution Bandwidth in third XTAL pole.

420 RBW 3K Unable to adjust 3 kHz Resolution Bandwidth in Fourth XTAL pole.

421 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in first XTAL pole.

422 RBW 1OK Unable to adjust 10 kHz Resolution Bandwidth in second XTAL pole.

423 RBW 1OK Unable to adjust 10 kHz Resolution Bandwidth in third XTAL pole.

424 RBW 10K Unable to adjust 10 kHz Resolution Bandwidth in Fourth XTAL pole.

General Troubleshooting 6-23