7000 series readout system/Repairs: Difference between revisions
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==Zeroes in display shrinking after some minutes== | ==Zeroes in display shrinking after some minutes== | ||
:'''Symptom:''' The digits zero in the display are getting smaller after some minutes | :'''Symptom:''' The digits zero in the display are getting smaller after some minutes | ||
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[[Category:Instrument repair reports]] | [[Category:Instrument repair reports]] | ||
Revision as of 08:03, 22 January 2022
Zeroes in display shrinking after some minutes
- Symptom: The digits zero in the display are getting smaller after some minutes
- Root cause: Resistor R224 in emitter circuit of Q2240 (zeroes logic) cracked and high value
- Solution: Replace resistor
- Source: www.amplifier.cd repair report (in German)