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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Tektronix 2230 schematic
Hi,
I'm looking for schematics of the Tektronix 2230 scope, and specially the power supply part. Mine is eating fuses at the moment... Paul |
#2
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Tektronix 2230 schematic
"Paul" wrote in :
Hi, I'm looking for schematics of the Tektronix 2230 scope, and specially the power supply part. Mine is eating fuses at the moment... Paul Use an ESR meter to check the PS electrolytics,and ohm the rectifier diodes.Those are high failure items.Check ebay for a service manual. -- Jim Yanik,NRA member remove null to contact me |
#3
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Tektronix 2230 schematic
"Paul" wrote in :
Hi, I'm looking for schematics of the Tektronix 2230 scope, and specially the power supply part. Mine is eating fuses at the moment... Paul FYI,this scope uses a switching pre-regulator to knock rectified line V (~170VDC) to ~43 VDC,then runs an inverter to produce the secondary voltages and HV.The pre-reg FET may be shorted,sometimes taking out the TL 594 IC,and the FET Molex connector should be removed and the 3-wire ribbon soldered direct to the FET leads. -- Jim Yanik,NRA member remove null to contact me |
#4
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Tektronix 2230 schematic
"Paul" wrote in message ...
Hi, I'm looking for schematics of the Tektronix 2230 scope, and specially the power supply part. Mine is eating fuses at the moment... Paul Check at http://www.fullnet.com/u/tomg/manuals.htm |
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