 |
|
| 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. |
| Reply |
|
|
LinkBack | Thread Tools | Display Modes |
|
#1
Posted to sci.electronics.repair
|
|||
|
|||
Oscilloscope repair Tektronix 2246 Chicago
Hello everyone my Tektronix 2246 oscilloscope just went out on me
tonight. First it started making frequencies noises randomly, then it took multiple tries to get it started. Now it just makes chirp and doesn't start all together. I opened it up at looked at the power supply and it looks fine, no obvious damage. Is there a common problem i could fix on my own? Can someone recommend a good repair shop in the Chicago land area. Thanks Rich |
|
#2
Posted to sci.electronics.repair
|
|||
|
|||
|
Oscilloscope repair Tektronix 2246 Chicago
On Jun 1, 12:51 am, wrote:
Hello everyone my Tektronix 2246 oscilloscope just went out on me tonight. First it started making frequencies noises randomly, then it took multiple tries to get it started. Now it just makes chirp and doesn't start all together. I opened it up at looked at the power supply and it looks fine, no obvious damage. Is there a common problem i could fix on my own? Can someone recommend a good repair shop in the Chicago land area. Thanks Rich Could be bad capacitors in the power supply, they can cause audible noise. |
|
#3
Posted to sci.electronics.repair
|
|||
|
|||
|
Oscilloscope repair Tektronix 2246 Chicago
On 1 Jun., 06:51, wrote:
Hello everyone my Tektronix 2246 oscilloscope just went out on me tonight. First it started making frequencies noises randomly, then it took multiple tries to get it started. Now it just makes chirp and doesn't start all together. I opened it up at looked at the power supply and it looks fine, no obvious damage. Is there a common problem i could fix on my own? Can someone recommend a good repair shop in the Chicago land area. Thanks Rich Bad/dry caps in the Tektronix pwr supply of this 22xx scope are a common failure, results are as you described. If you can chk and change the caps, it should be worth the effort. gd luck. hth, Andreas |
|
#4
Posted to sci.electronics.repair
|
|||
|
|||
|
Oscilloscope repair Tektronix 2246 Chicago
Andreas Tekman wrote in
oups.com: On 1 Jun., 06:51, wrote: Hello everyone my Tektronix 2246 oscilloscope just went out on me tonight. First it started making frequencies noises randomly, then it took multiple tries to get it started. Now it just makes chirp and doesn't start all together. I opened it up at looked at the power supply and it looks fine, no obvious damage. Is there a common problem i could fix on my own? Can someone recommend a good repair shop in the Chicago land area. Thanks Rich Bad/dry caps in the Tektronix pwr supply of this 22xx scope are a common failure, results are as you described. If you can chk and change the caps, it should be worth the effort. gd luck. hth, Andreas Don't forget to use *low-ESR* switcher-grade caps.Since the 2246 PS uses odd value caps,the next closest standard value over the uf and voltage ratings will suffice. Also,the 2246 PS is underneath the top board;that has to be lifted to access the PS board,but the PS unplugs. -- Jim Yanik jyanik at kua.net |
| Reply |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Tektronix 2246 | Electronics Repair | |||
| Oscilloscope Question Tektronics 2246 | Electronics | |||
| Tektronix oscilloscope repair tips | Electronics Repair | |||
| repair of Tektronix 2215 60mhz oscilloscope ? | Electronics Repair | |||
| F/S: TEKTRONIX TDS220 OSCILLOSCOPE | Electronics Repair | |||
Linear Mode
