FUNCTION GENERATOR USER MANUAL i EC Declaration of Conformity We GOOD WILL INSTRUMENT CO., LTD. 7-1, Jhongsing Rd., Tucheng City, Taipei County 236, Taiwan GOOD WILL INSTRUMENT (SUZHOU) CO., LTD. No.69 Lushan Road, Suzhou New District Jiangsu, China. Declares that the below mentioned product GFG-8210A is herewith confirmed to comply with the requirements set out in the Council Directive on the Approximation of the Law of Member States relating to Electromagnetic Compatibility (89/336/EEC, 92/31/EEC, 93/68/EEC) and Low Voltage Equipment Directive (73/23/EEC, 93/68/EEC). Hi all, I have gotten in my hands a 'semi' working IEC F34 Function Generator. The problem is that it does not in any shape or form have a stable waveform. Usually there is a lot of amplitude modulation on the signal. Law of electronics repair #1: 'Thou shalt check voltages.' Luckily, this device is from the early 70s! When they still knew hot to put nice pretty test points in everywhere. (And the manual is awesome.) Manual is attached. Anyway, it has a split supply +-15 and +- 5 V. Both positive rails are dead on, but the negative 15V rail measures -12.## and the -5 measures -4.5. Function Generator Operation![]() It is very important that the Function Tripping is Enabled under the following situations: Generator protection REG670 2.0 IEC Commissioning manual. Page 72: Auditing Click the Delete report button in the upper right corner of the auditing screen. Iec Function Generator Manual: full version free software download. Iec series 70 function generator model F74/F77. FUNCTION GENERATOR-SERIES INSTRUCTION. So, I checked the manual (attached), and it says 'Q31 or Q32 shorted' for the problem of '-5V rail too high.' Technically the -5V rail is too 'high', but it all depends on what you consider high with negative numbers. The other problem of '-5V rail too low' is simply Q31 or Q32 open'. Neither of which is true. I don't know how a transistor can be shorted, but both had 10s of kOhms between the pins. I'm not sure how else to check them. Regardless, I then checked voltages on the pins of the transistors, there I found my -12.## and -4.5 Vs. I think the -4.5 is due to the -12.##. Apr 22, 2014 Book Vista Bela Pousada, Morro de Sao Paulo on TripAdvisor: See 5 traveler reviews, 236 candid photos, and great deals. Get the best prices for Pousada Vista Bela, Morro de Sao Paulo at Hotels.com. View photos of Pousada Vista Bela and read genuine guest reviews of Pousada Vista Bela. Pousada vista bela morro de sp. Hp 8116a Pulse Function Generator ManualSo, Then I ran into a block. I tried looking into the parts list for voltage regulators. But I don't think they were around back then, cause all they have are zener diodes. Which, sure, can be used as voltage regulators in a way. Function Generator And Oscilloscope![]() Anyway, I'm waiting until tomorrow to print out the schematic, it's next to impossible to look at on the computer (it's split over multiple pages.) But, if you guys want to take a crack at it, I'd be mighty grateful. NINJA EDIT: I found a cracked joint on the 2500uF electrolytic (they're wicked old, and look like they have a wooden top?) Maybe I'll replace them anyway, they're probably dead by now anyway right?
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