E8257D/67D, E8663D PSG Signal Generators Service Guide 27
Troubleshooting
Self–Test Failures and Related Troubleshooting
A18 CPU “Self–Tests 11xx: A18 CPU Self–Test Errors” on page 76
1100 Power Supply
A26 Micro Interface Deck (E8257D) “Self–Tests 12xx: A26 MID Self–Test Errors (E8257D)” on page 77
1200 Power Supply
1201 Mod Filter
1202 20 GHz Doubler
1203 40 GHz Doubler (Option 540 only)
1204 RF Path
1205 LB Pulse Mod
1208 Quadraplier (Options 550 & 567)
A26 Micro Interface Deck (E8267D) “Self–Tests 12xx: A26 MID Self–Test Errors (E8267D)” on page 83
1200 Power Supply
1201 Mod Filter
1202 20 GHz Doubler
1203 40 GHz Doubler (Options 532 & 544)
1204 RF Path
1205 LB Pulse Mod
1206 20 GHz IQ Modulator
1207 Upconverter (Options 532 & 544)
1208 (not used)
1209 Downconverter Test
A11 Pulse/Analog Modulation Generator “Self–Tests 13xx: A11 Analog/Pulse Modulation Generator
Self–Test Errors” on page 89
1300 Power Supply
1301 Internal Pulse Generator Clock
1302 Output
1303 Voltage Ref DAC
1304 20 GHz Pulse
1305 44 GHz Upconverter Pulse
1306 Standard 3 GHz Pulse
1307 High Performance 3 GHz Pulse
1308 Numeric Synthesizer
1309 Function Generator Channel 1
1310 Function Generator Channel 2
1311 Frequency Modulation
1312 Low Frequency Out
1313 Amplitude Modulation
1314 External 1
1315 External 2
1316 AM Path Loss
Table 1-4 Self–test Failures and Related Troubleshooting (Continued)
If this self–test fails... Go to this troubleshooting section...
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