HP 8924C Assembly page 452

Chapter 10, Service Screen
Troubleshooting with the Service Screen
NOTE: If any of the switches, DACs, or gain settings are changed with the Latch field, the Test
Set will generate the message "Direct latch write occurred. Cycle power
when done servicing."To clear this message, cycle the Test Set's power. Upon power-
up, the internal controller will return the Test Set to its default settings and values.
452
Latch
This field is used to manually alter the circuit latches that control switch, DAC,
and gain settings within the Test Set. The value of the selected latch is displayed
and changed in the
Value
To set a switch, DAC, or gain setting:
Move the cursor in front of the
1.
A menu will appear.
Choices
Move the cursor to the desired latch name and push the cursor control knob.
2.
Move the cursor in front of the
3.
Rotate the cursor control knob to modify the value (hexadecimal).
4.
The first part of the names in the
switch, DAC, or gain setting is located. Some latch names are not listed here.
• dstr: A34 Modulation Distribution
• aud1: A35 Audio Analyzer 1
• aud2: A36 Audio Analyzer 2
• refs: A27 Reference
• inpt: A5 Input
• out: A26 Output
• rcvr: A30 Receiver
• gsyn: A24 Signal Generator Synthesizer
• rsyn: A28 Receiver Synthesizer
• spec: A32 Spectrum Analyzer
• meas: A37 Measurement
• metron: A37 Measurement
• afg1: A15 Signaling Source/Analyzer
• afg2: A15 Signaling Source/Analyzer
• sgnl: Displays version number of the Signaling Source/Analyzer firmware.
• cellSite1: A9 Cell Site 1 Digital board
• cellSite2: A7 Cell Site 2 Digital board
• cdmaRef: A29 CDMA Reference
• iq_mod: A25 I/Q Modulator
• loif: A31 LO/IF Demod
• main_dsp: A12 Main DSP Receiver
• aux_dsp: A11 Optional DSP Receiver
• protocol: A6 Protocol Processor
field. Some settings are read-only.
field and push the cursor control knob.
Latch
field and push the cursor control knob.
Value
menu relates to the assembly where the
Choices
N:\mkt\MANUALS\HP8924C\ALR\service.fb