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Search found 5 matches

by tekkiham
January 14th, 2019, 10:37 pm
Forum: Other or Discontinued Oscilloscopes
Topic: TDS654C Repair
Replies: 8
Views: 5503

Re: TDS654C Repair

Hello, so yesterday the 32 MHz TTL-oscillator arrived. I soldered it and "WoW" the scope starts up and is working fine. I tested the adapter for serial debug port at J40 and all internal Tests gave a "Passed".( only 3 connections :GND,TX,RX) So it was a very simple error, but I wounldn't have tried ...
by tekkiham
December 26th, 2018, 9:48 am
Forum: Other or Discontinued Oscilloscopes
Topic: TDS654C Repair
Replies: 8
Views: 5503

Re: TDS654C Repair

Hello, merry Christmas to all of you. I just had a few Moment for Looking to the scope. I tested the TTL Oscillators Y1 and Y2.
The Y2 osc with 32 MHz is Not working. I will change it next year, because I have None in stock.
by tekkiham
December 12th, 2018, 4:56 am
Forum: Other or Discontinued Oscilloscopes
Topic: TDS654C Repair
Replies: 8
Views: 5503

Re: TDS654C Repair

Hi all, I tried to test the communication with my option board and serial interface. But there is no reaction. Nothing to receive on power-up of the scope. The LED Display on processor board shows ".8 " , also after 20 minutes. All lights on of the front panel , no display. Maybe DS1486 and/or DS125...
by tekkiham
November 21st, 2018, 12:40 am
Forum: Other or Discontinued Oscilloscopes
Topic: TDS654C Repair
Replies: 8
Views: 5503

Re: TDS654C Repair

Thank you Strick for the information, sorry for the late reply.
I built the adapter, tested it, but no communication. Today I found a mistake in my wiring. (A10 and B10 has to be changed in my wiring)
So I will have a short test this evening.
by tekkiham
November 12th, 2018, 5:46 am
Forum: Other or Discontinued Oscilloscopes
Topic: TDS654C Repair
Replies: 8
Views: 5503

TDS654C Repair

Hi, that is a really wonderful forum, because before a couple of years, you wont have so much information of Tektronix Equipment. I have an TDS654C, which doesn't boot anymore. After power-on, you see an 8. on LED. No Display, only littl flickering on the screen. My question is: Can I use the build-...

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