Maintenance
Section 5
5-27
5-82. Counter Plug-in Board Test.
The period counter
can be tested using special function 31. In this test
sequence the counter is configured to measure the
timebase reference. The reference is divided in decade
increments from 1 to 10,000 in the period ranging circuits.
Each of the five frequency ranges is sequentially checked
for accuracy while the ANALYZER display indicates the
range being tested. The SOURCE display will indicate an
error code if a fault is evident on the tested range.
5-83. Input and Filter Plug-in Board Test.
The Input
and filter plug-in boards can be tested using special
function 32. In this test sequence an external signal
source set to 1 kHz and 3.000 volts is required. The HI
and LOW inputs can be checked separately by enabling
the float mode and connecting the signal source to either
input. Each of the 13 level ranges is sequentially checked
to an accuracy limit of ± 0.5% while the ANALYZER
display indicates the range being tested. The SOURCE
display will indicate an error code if a fault is evident on
the tested range.
5-84. Notch And Detector Plug-in Board Test.
The
Notch and Detector plug-in boards can be tested using
special function 33. In this test sequence an external
signal source set to 1 kHz and 3.000 volts is applied to the
Analyzer input. Each of the 13 post notch detector ranges
is sequentially checked to an accuracy limit of ± 1.0%
while the ANALYZER display indicates the range being
tested. The SOURCE display will indicate an error code if
a fault is evident on the tested range.
5-85. PREPARATION FOR SHIPMENT.
5-86. Use of Shipping Case or Containers.
If the
original shipping case or container was saved, pack the
Model 1121A as it was received.
5-87. Packaging.
When using packing materials other
than the original, use the following guidelines:
a. Wrap the Model 1121A in polyethylene sheeting.
b. Select a double wall cardboard container. Inside
dimensions must be at least 6 inches greater than the
equipment. The carton must meet test strength require-
ments of >275 lbs. (124.7 kg).
c. Protect all sides with shock-absorbing material to
prevent equipment movement within the container.
d. Seal carton with approved sealing tape.
e. Mark carton “FRAGILE” on all sides, top, and
bottom of shipping container.
5-88. STORAGE.
Pack the Model 1121A in the shipping container.
Maintain storage temperature range of -4 to 140°F (-40 to
71°C) at 75±5 relative humidity.
TABLE 5-23. DIAGNOSTIC ERROR CODE DESCRIPTION.
Содержание 1121A
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Страница 12: ...VIII MODEL 1121A AUDIO ANALYZER ...
Страница 18: ...Section 1 General Information 1 6 This page intentionally blank ...
Страница 21: ...Installation Section 2 2 3 Figure 2 1 Packing and Unpacking Diagram ...
Страница 22: ...Section 2 Installation 2 4 This page intentionally blank ...
Страница 24: ...Section 3 Operation 3 2 Figure 3 1 Model 1121A Front View Figure 3 2 Model 1121A Rear View ...
Страница 25: ...Operation Section 3 3 3 ...
Страница 26: ...Section 3 Operation 3 4 ...
Страница 27: ...Operation Section 3 3 5 ...
Страница 30: ...Section 3 Operation 3 8 ...
Страница 37: ...Operation Section 3 3 15 TABLE 3 9 ERROR CODES ...
Страница 38: ...Section 3 Operation 3 16 TABLE 3 8 OPTION SWITCH A4S1 ...
Страница 39: ...Operation Section 3 3 17 TABLE 3 9 ERROR CODES ...
Страница 41: ...Operation Section 3 3 19 ...
Страница 42: ...Section 3 Operation 3 20 ...
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Страница 50: ...Section 4 Theory of Operation 4 4 Figure 4 3 CPU Circuits Block Diagram ...
Страница 62: ...Section 4 Theory of Operation 4 16 This page intentionally blank ...
Страница 64: ...Section 5 Maintenance 5 2 ...
Страница 71: ...Maintenance Section 5 5 9 TABLE 5 3 ANALYZER DC LEVEL ACCURACY TEST RECORD ...
Страница 73: ...Maintenance Section 5 5 11 TABLE 5 4 ANALYZER AC LEVEL ACCURACY TEST RECORD ...
Страница 74: ...Section 5 Maintenance 5 12 TABLE 5 5 ANALYZER AC LEVEL FLATNESS TEST RECORD ...
Страница 76: ...Section 5 Maintenance 5 14 TABLE 5 9 SOURCE LOW LEVEL ACCURACY TEST RECORD ...
Страница 77: ...Maintenance Section 5 5 15 TABLE 5 12 FILTER ACCURACY TEST RECORD ...
Страница 78: ...Section 5 Maintenance 5 16 TABLE 5 14 RESIDUAL SIGNAL TO NOISE TEST RECORD ...
Страница 79: ...Maintenance Section 5 5 17 ...
Страница 80: ...Section 5 Maintenance 5 18 TABLE 5 17 CCIR FILTER ACCURACY TEST RECORD ...
Страница 81: ...Maintenance Section 5 5 19 TABLE 5 18 A WEIGHTING FILTER ACCURACY TEST RECORD ...
Страница 82: ...Section 5 Maintenance 5 20 ...
Страница 83: ...Maintenance Section 5 5 21 ...
Страница 84: ...Section 5 Maintenance 5 22 ...
Страница 90: ...Section 5 Maintenance 5 28 TABLE 5 23 DIAGNOSTIC ERROR CODE DESCRIPTION ...
Страница 92: ...Section 6 Parts List 6 2 Figure 6 1 Model 1121A Programmable Audio Analyzer ...
Страница 93: ...Parts List Section 6 6 3 ...
Страница 94: ...Section 6 Parts List 6 4 Figure 6 2 1121A Frame Assy Sheet 1 of 2 ...
Страница 95: ...Parts List Section 6 6 5 Figure 6 2 1121A Frame Assy Sheet 2 of 2 ...
Страница 97: ...Parts List Section 6 6 7 Figure 6 3 PWA 1121A Input A0 ...
Страница 100: ...Section 6 Parts List 6 10 Figure 6 4 PWA 1121A Main Filter A1 ...
Страница 102: ...Section 6 Parts List 6 12 Figure 6 5 PWA 1121A Notch A2 ...
Страница 105: ...Parts List Section 6 6 15 Figure 6 6 PWA 1121A Detector A3 ...
Страница 109: ...Parts List Section 6 6 19 Figure 6 7 PWA 1121A Freq Counter ...
Страница 111: ...Parts List Section 6 6 21 Figure 6 8 PWA 1121A CPU A5 ...
Страница 113: ...Parts List Section 6 6 23 Figure 6 9 PWA 1121A Source A6 ...
Страница 114: ...Section 6 Parts List 6 24 ...
Страница 115: ...Parts List Section 6 6 25 ...
Страница 116: ...Section 6 Parts List 6 26 Figure 6 10 PWA 1121A Output A7 ...
Страница 119: ...Parts List Section 6 6 29 Figure 6 11 Front Bezel Assy A17 ...
Страница 120: ...Section 6 Parts List 6 30 Figure 6 12 PWA 1121A Keyboard A13 ...
Страница 122: ...Section 6 Parts List 6 32 Figure 6 13 Bezel Sub Assy ...
Страница 123: ...Parts List Section 6 6 33 Figure 6 14 PWA 1121A Display A12 ...
Страница 126: ...Section 6 Parts List 6 36 Figure 6 15 Front Panel Assy ...
Страница 127: ...Parts List Section 6 6 37 Figure 6 16 Rear Panel Assy A21 Sheet 1 of 2 ...
Страница 128: ...Section 6 Parts List 6 38 Figure 6 16 Rear Panel Assy A21 Sheet 2 of 2 ...
Страница 129: ...Parts List Section 6 6 39 Figure 6 17 Heat Sink Assy A20 ...
Страница 131: ...Parts List Section 6 6 41 Figure 6 18 Power Amplifier A24 ...
Страница 132: ...Section 6 Parts List 6 42 Figure 6 19 Transformer Assy T1 ...
Страница 133: ...Parts List Section 6 6 43 Figure 6 20 1121A Card Cage Assy A18 ...
Страница 134: ...Section 6 Parts List 6 44 Figure 6 21 PWA 1121A Mother A10 ...
Страница 137: ...Parts List Section 6 6 47 Figure 6 22 PWA 400 Hz High Pass Filter ...
Страница 138: ...Section 6 Parts List 6 48 ...
Страница 139: ...Schematic Diagrams Section 7 7 1 SECTION VII SCHEMATIC DIAGRAMS TABLE 7 1 LIST OF SCHEMATICS ...
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Страница 141: ...Schematic Diagrams Section 7 7 3 Figure 7 1 Main Frame Schematic ...
Страница 142: ...Section 7 Schematic Diagrams 7 4 Figure 7 2 Input Board A0 Parts Location Diagram ...
Страница 143: ...Schematic Diagrams Section 7 7 5 Figure 7 3 Input Board A0 Schematic ...
Страница 144: ...Section 7 Schematic Diagrams 7 6 Figure 7 4 Filter Board A1 Parts Location Diagram ...
Страница 145: ...Schematic Diagrams Section 7 7 7 Figure 7 5 Filter Board A1 Schematic ...
Страница 146: ...Section 7 Schematic Diagrams 7 8 Figure 7 6 Notch Board A2 Parts Location Diagram ...
Страница 147: ...Schematic Diagrams Section 7 7 9 Figure 7 7 Notch Board A2 1Schematic ...
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Страница 149: ...Schematic Diagrams Section 7 7 11 Figure 7 8 Notch Board A2 2 Schematic ...
Страница 150: ...Section 7 Schematic Diagrams 7 12 Figure 7 9 Detector Board A3 Parts Location Diagram ...
Страница 151: ...Schematic Diagrams Section 7 7 13 Figure 7 10 Detector Board A3 1 Schematic Figure 7 11 Detector Board A3 2 Schematic ...
Страница 152: ...Section 7 Schematic Diagrams 7 14 Figure 7 12 Counter Board A4 Parts Location Diagram ...
Страница 153: ...Schematic Diagrams Section 7 7 15 Figure 7 13 Counter Board A4 Schematic ...
Страница 154: ...Section 7 Schematic Diagrams 7 16 Figure 7 14 C P U Board A5 Parts Location Diagram ...
Страница 155: ...Schematic Diagrams Section 7 7 17 Figure 7 15 C P U Board A5 Schematic ...
Страница 156: ...Section 7 Schematic Diagrams 7 18 Figure 7 16 Source Board A6 Parts Location Diagram ...
Страница 157: ...Schematic Diagrams Section 7 7 19 Figure 7 17 Source Board A6 1 Schematic ...
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Страница 159: ...Schematic Diagrams Section 7 7 21 Figure 7 18 Source Board A6 2 Schematic ...
Страница 160: ...Section 7 Schematic Diagrams 7 22 Figure 7 19 Output Board A7 Parts Location Diagram ...
Страница 161: ...Schematic Diagrams Section 7 7 23 Figure 7 20 Output Board A7 Schematic ...
Страница 162: ...Section 7 Schematic Diagrams 7 24 Figure 7 21 Mother Board A10 Parts Location Diagram ...
Страница 163: ...Schematic Diagrams Section 7 7 25 Figure 7 22 Mother Board A10 Schematic ...
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Страница 165: ...Schematic Diagrams Section 7 7 27 Figure 7 25 Power Supply A11 2 Schematic ...
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Страница 167: ...Schematic Diagrams Section 7 7 29 ...
Страница 168: ...Section 7 Schematic Diagrams 7 30 Figure 7 26 Display Board A12 Parts Location Diagram ...
Страница 169: ...Schematic Diagrams Section 7 7 31 Figure 7 27 Display Board A12 Schematic Sheet 1 ...
Страница 170: ...Section 7 Schematic Diagrams 7 32 Figure 7 28 Key Board A13 Parts Location Diagram ...
Страница 171: ...Schematic Diagrams Section 7 7 33 ...
Страница 172: ...Section 7 Schematic Diagrams 7 34 ...
Страница 173: ...Schematic Diagrams Section 7 7 35 ...
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Страница 176: ...Section 7 Schematic Diagrams 7 38 Figure 7 35 CCITT Board A1A31 Schematic ...
