User Contributed MET/CAL PROCEDURE ============================================================================= INSTRUMENT: MET-270-2 DATE: 01-Nov-94 AUTHOR: User Contributed REVISION: ADJUSTMENT THRESHOLD: 70% NUMBER OF TESTS: 11 NUMBER OF LINES: 180 CONFIGURATION: HP 53131A ============================================================================= STEP FSC RANGE NOMINAL TOLERANCE MOD1 MOD2 3 4 CON 1.001 HEAD {Tape Speed} 1.002 DISP Remove the left side panel of the tape recorder. 1.003 DISP Locate the Capstan Servo Control PCB. 1.004 DISP Using a BNC to Alligator Clip cable, connect 1.004 DISP the HP 53131A Counter CHANNEL 1 INPUT to 1.004 DISP the Capstan Servo Control PCB TP1 GND(-) and 1.004 DISP TP7 TACH OUT(+). 1.005 IEEE [@53131A]*rst 1.006 IEEE [@53131A]*cls 1.007 HEAD {120IPS} 1.008 DISP Set the Tape Speed to 120IPS. 1.009 DISP Depress the FWD Key on the control panel to start 1.009 DISP the recorder. 1.010 DISP Allow the recorder about 20 seconds for the 1.010 DISP tape speed to stabilize. 1.010 DISP When tape speed has stabilized hit [27][91]1mADV 1.011 IEEE [@53131A]read? 1.012 ACC 400000H 3.6e-1U 1.013 IEEE [@53131A][I] 1.014 MEME 1.015 MEMC Hz 400.00U #! Test Tol 400, Sys Tol 0.36, TUR 1111.111 (>= 4.00). 2.001 DISP Depress the STOP Key on the control panel to stop 2.001 DISP the recorder. 2.002 HEAD {60IPS} 2.003 DISP Set the Tape Speed to 60IPS. 2.004 DISP Depress the FWD Key on the control panel to start 2.004 DISP the recorder. 2.005 DISP Allow the recorder about 20 seconds for the 2.005 DISP tape speed to stabilize. 2.005 DISP When tape speed has stabilized hit [27][91]1mADV 2.006 IEEE [@53131A]read? 2.007 ACC 200000H 1.8e-1U 2.008 IEEE [@53131A][I] 2.009 MEME 2.010 MEMC Hz 200.00U #! Test Tol 200, Sys Tol 0.18, TUR 1111.111 (>= 4.00). 3.001 DISP Depress the STOP Key on the control panel to stop 3.002 DISP the recorder. 3.003 HEAD {30IPS} 3.004 DISP Set the Tape Speed to 30IPS. 3.005 DISP Depress the FWD Key on the control panel to start 3.005 DISP the recorder. 3.006 DISP Allow the recorder about 20 seconds for the 3.006 DISP tape speed to stabilize. 3.006 DISP When tape speed has stabilized hit [27][91]1mADV 3.007 IEEE [@53131A]read? 3.008 ACC 100000H 9e-2U 3.009 IEEE [@53131A][I] 3.010 MEME 3.011 MEMC Hz 100.00U #! Test Tol 100, Sys Tol 0.09, TUR 1111.111 (>= 4.00). 4.001 DISP Depress the STOP Key on the control panel to stop 4.001 DISP the recorder. 4.002 HEAD {15IPS} 4.003 DISP Set the Tape Speed to 15IPS. 4.004 DISP Depress the FWD Key on the control panel to start 4.004 DISP the recorder. 4.005 DISP Allow the recorder about 20 seconds for the 4.005 DISP tape speed to stabilize. 4.005 DISP When tape speed has stabilized hit [27][91]1mADV 4.006 IEEE [@53131A]read? 4.007 ACC 50000H 4.5e-2U 4.008 IEEE [@53131A][I] 4.009 MEME 4.010 MEMC Hz 50.00U #! Test Tol 50, Sys Tol 0.045, TUR 1111.111 (>= 4.00). 5.001 DISP Depress the STOP Key on the control panel to stop 5.001 DISP the recorder. 5.002 HEAD {7.5IPS} 5.003 DISP Set the Tape Speed to 7.5IPS. 5.004 DISP Depress the FWD Key on the control panel to start 5.004 DISP the recorder. 5.005 DISP Allow the recorder about 20 seconds for the 5.005 DISP tape speed to stabilize. 5.005 DISP When tape speed has stabilized hit [27][91]1mADV 5.006 IEEE [@53131A]read? 5.007 ACC 25000H 2.3e-2U 5.008 IEEE [@53131A][I] 5.009 MEME 5.010 MEMC H 25.00U #! Test Tol 25, Sys Tol 0.023, TUR 1086.957 (>= 4.00). 6.001 DISP Depress the STOP Key on the control panel to stop 6.001 DISP the recorder. 6.002 HEAD {3.75IPS} 6.003 DISP Set the Tape Speed to 3.75IPS. 6.004 DISP Depress the FWD Key on the control panel to start 6.004 DISP the recorder. 6.005 DISP Allow the recorder about 20 seconds for the 6.005 DISP tape speed to stabilize. 6.005 DISP When tape speed has stabilized hit [27][91]1mADV 6.006 IEEE [@53131A]read? 6.007 ACC 12500H 1.1e-2U 6.008 IEEE [@53131A][I] 6.009 MEME 6.010 MEMC H 12.00U #! Test Tol 12, Sys Tol 0.011, TUR 1090.909 (>= 4.00). 7.001 DISP Depress the STOP Key on the control panel to stop 7.001 DISP the recorder. 7.002 HEAD {1.87IPS} 7.003 DISP Set the Tape Speed to 1.87IPS. 7.004 DISP Depress the FWD Key on the control panel to start 7.004 DISP the recorder. 7.005 DISP Allow the recorder about 20 seconds for the 7.005 DISP tape speed to stabilize. 7.005 DISP When tape speed has stabilized hit [27][91]1mADV 7.006 IEEE [@53131A]read? 7.007 ACC 6250H 5.6e-3U 7.008 IEEE [@53131A][I] 7.009 MEME 7.010 MEMC H 6.25U #! Test Tol 6.25, Sys Tol 0.0056, TUR 1116.071 (>= 4.00). 8.001 DISP Depress the STOP Key on the control panel to stop 8.001 DISP the recorder. 8.002 HEAD {0.937IPS} 8.003 DISP Set the Tape Speed to 0.937IPS. 8.004 DISP Depress the FWD Key on the control panel to start 8.004 DISP the recorder. 8.005 DISP Allow the recorder about 20 seconds for the 8.005 DISP tape speed to stabilize. 8.005 DISP When tape speed has stabilized hit [27][91]1mADV 8.006 IEEE [@53131A]read? 8.007 ACC 3125H 2.8e-3U 8.008 IEEE [@53131A][I] 8.009 MEME 8.010 MEMC H 3.125U #! Test Tol 3.125, Sys Tol 0.0028, TUR 1116.071 (>= 4.00). 9.001 DISP Depress the STOP Key on the control panel to stop 9.001 DISP the recorder. 9.002 HEAD {Auto Test} 9.003 DISP Auto Test will use the internal calibrator 9.003 DISP to test each channel. If a channel fails, 9.003 DISP Auto Test will stop and the CAL lamp will flash. 9.003 DISP Note the failed channel and increment to the 9.003 DISP next higher channel and restart. 9.004 DISP Set the tape recorder to the following: 9.004 DISP Speed: 15IPS 9.004 DISP CAL: ON 9.004 DISP EXT/INT: Set to INT 9.004 DISP AUTO TEST: ON 9.005 DISP Depress the FWD/REC buttons simultaneously to 9.005 DISP start the Auto Test. 9.006 DISP Observe that the following indicators are illuminated: 9.006 DISP CAL 9.006 DISP AUTO TEST 9.006 DISP INT 9.006 DISP FM 9.006 DISP DIR 9.006 DISP Selected speed is displayed (15IPS) 9.006 DISP REC and FWD 9.007 EVAL Are the indicators illuminated from the previous step? 10.001 DISP Wait for the tape recorder to complete Auto Test 10.001 DISP of all channels. The tape recorder will automatically 10.001 DISP stop when complete. 10.002 DISP If all channels passed the Auto Test the 10.002 DISP following indicators status will be: 10.002 DISP AUTO TEST: Extinguished 10.002 DISP REC: Extinguished 10.002 DISP FWD: Extinguished 10.002 DISP STOP: Illuminated 10.002 DISP CAL: Illuminated 10.003 EVAL Is the indicator status as described in the previous step? 11.001 END #! T.U.R.s less than 4.00: 0 #! T.U.R.s estimated using RANGE value: 0 #! T.U.R.s not calculated (ASK- U): 0 #! T.U.R.s not computable at compile time: 0 #! FOR JUSTIFICATION REFER TO COMMENTS FOLLOWING EACH TEST IN THIS LISTING.