Home |
Search |
Today's Posts |
|
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
|
|||
|
|||
FG507 Again!
Hi folks,
I am cleaning out and ran across the FG 507 I posted about years ago. It seemed a shame to toss it, so I went to work. It is a Tektronix 2 MHz function generator with sweep and it died completely after my old posts. Found no -20 volts and also found a burnt resistor, blown fuse, and a blown NPN TO-3 on the back of the mainframe. Went to work on all that and then found that the -20 volt bus was shorted. Replaced two 6.8 uF tantalums and the generator fired up. Worked for a while and then it started to act up so I also replaced two more 6.8 tantalums on the +20 volt bus. All seems OK now. The THD was out of spec. so I diddled 3 pots and it looks good. All seems normal now. Thanks again to all who posted about this years ago. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Tektronix FG507 | Electronics Repair |