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Chapter 14, Diagnostics Descriptions
Description Of Audio Diagnostics (AFDIAGS3)
N:\mkt\MANUALS\HP8924C\ALR\diagnos.fb
Table 116
Preliminary Audio Paths Failure Codes
Failure Codes
Probable Cause(s)
Code 2
Suspect Modulation Distribution assembly (high) (AFG1 Modulation Select
Source Switch stays closed.)
Code 8
Suspect Modulation Distribution assembly (high) (AFG2 Modulation Select
Source Switch stays closed.)
Code 17
Suspect Modulation Distribution assembly (high) (AFG1 Modulation Select
Source Switch open.)
Code 20
Suspect Modulation Distribution assembly (high) (AFG2 Modulation Select
Source Switch open.)
Code 21
Suspect Modulation Distribution assembly (high)\ (Modulation select output
problem. Check Modulation Select Source Switch (including FM Polarity ampli-
fier, not shown in figure).)
Code 31
Suspect Modulation Distribution assembly (high) (Monitor Select Multiplexer
Switch stays in audio output position.)
Code 32
Suspect Modulation Distribution assembly (high) (AFG1 Atten 2 or Audio Out-
put Sum Amplifier open.)
Code 49
Suspect Modulation Distribution assembly (high) (AFG1 path problem. Check
AFG1 circuits Filter Amplifier, Int Level Amplifier DAC, and Atten 1.)
Code 96
Suspect Modulation Distribution assembly (high) (Audio AC/DC Coupling
switch open.)
Code 117
Suspect Audio Analyzer 2 assembly (medium) (Problem with path from the
Monitor Select Input to DVM OUT.) Or Measurement assembly (low)
(Voltmeter multiplexer problem.)
Code 128
Suspect Modulation Distribution assembly (high) (Shorted Audio AC/DC Cou-
pling switch or capacitor.)
Code 256
Suspect Modulation Distribution assembly (high) (Audio AC/DC Coupling
capacitor open.) Or Audio Analyzer 2 assembly (low)(Problem with path from
Monitor Select input to Pos Peak Detector.) Or Measurement assembly (low)
(Voltmeter multiplexer problem.)
Code 320
Suspect Modulation Distribution assembly (high) (AFG2 Atten 2 or Audio Out-
put Sum Amplifier open.)
Code 340
Suspect Modulation Distribution assembly (high) (AFG2 path problem. Check
AFG2 circuits Filter Amplifiers, Internal Level Amplifier DAC, and Atten 1.)
Содержание 8924E
Страница 52: ...Contents 52 N mkt MANUALS HP8924C ALR 8924CE TOC A Error Messages ...
Страница 53: ...Contents 53 N mkt MANUALS HP8924C ALR 8924CE TOC Index 633 ...
Страница 54: ...Contents 54 N mkt MANUALS HP8924C ALR 8924CE TOC ...
Страница 70: ...70 Chapter 1 Introduction Hardware and Firmware Enhancements N mkt MANUALS HP8924C ALR intro fb ...
Страница 137: ...137 N mkt MANUALS HP8924C ALR per_adj fb 4 Periodic Adjustments ...
Страница 448: ...448 Chapter 9 HP 8924C E Specifications General Specifications N mkt MANUALS HP8924C ALR specs fb ...
Страница 449: ...449 N mkt MANUALS HP8924C ALR service fb 10 Service Screen ...
Страница 454: ...454 Chapter 10 Service Screen Troubleshooting with the Service Screen N mkt MANUALS HP8924C ALR service fb ...
Страница 455: ...455 N mkt MANUALS HP8924C ALR blkdia fb 11 Block Diagrams ...
Страница 522: ...522 Chapter 11 Block Diagrams Assembly Details N mkt MANUALS HP8924C ALR blkdia fb ...
Страница 530: ...530 Chapter 12 HP 8924C Replaceable Parts Replaceable Parts Listing N mkt MANUALS HP8924C ALR 24c_rpl fb ...
Страница 538: ...538 Chapter 13 HP 8924E Replaceable Parts Replaceable Parts Listing N mkt MANUALS HP8924C ALR 24e_rpl fb ...
Страница 613: ...613 N mkt MANUALS HP8924C ALR errmssg fb A Error Messages ...
Страница 640: ...Index 640 N mkt MANUALS HP8924C ALR 8924CE IX V VOLUME control 61 W Write Protect Cal Data 143 ...