7844/Repairs: Difference between revisions

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:'''Root cause: Transistors Q1234 and Q1241 shorted, resonance coil core cracked, resonance capacitor faulty
:'''Root cause: Transistors Q1234 and Q1241 shorted, resonance coil core cracked, resonance capacitor faulty
:'''Solution:''' See [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/rep-und-kal/7844_reparatur_engl.html 7844 repair page @ amplifier.cd]
:'''Solution:''' See [https://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_7000_series_mainframe/rep-und-kal/7844_reparatur_engl.html 7844 repair page @ amplifier.cd]




[[Category:Instrument repair reports]]
[[Category:Instrument repair reports]]

Latest revision as of 03:55, 16 August 2021

Power supply

Symptom: blows primary fuse
Root cause: Transistors Q1234 and Q1241 shorted, resonance coil core cracked, resonance capacitor faulty
Solution: See 7844 repair page @ amplifier.cd