Service manuals, schematics, eproms for electrical technicians

FLUKE 6080A-AN RF-SIGNAL SM

METER - SERVICE MANUAL
Type: (PDF)
Size
6.8 MB
Page
296
Category
METER
SERVICE MANUAL
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  • Also known:
    FLUKE RFSIGNAL 6080AAN 6080 AAN 6080A AN RF SIGNAL 6080A-AN RF-SIGNAL
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  • See related repair forum topics below. May be help you to repair.
Warning!
If you are not familiar with electronics, do not attempt to repair!
You could suffer a fatal electrical shock! Instead, contact your nearest service center!

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Relevant METER forum topics:
fluke 123
sziasztok.van egy ilyen kis műszerem ,amiben ez az smd alkatrész szált el P43 ,vajon mi lehet ez?
Fluke ScopeMeter 105B Series II Display frozen / no Display
In my case the display of the ScopeMeter was frozen and the keyboard did not respond any more exept the on/off key. This happened always after the ScopeMeter has been switched on for a while. To find the temperature effect, I heated up the different parts of the Digital A1 board with a hair dryer. At some point, the device display stopped working completely and only the backlight was working. This effect was steady and irreversible.
To repair the device, you need the "fluke_92b_96b_99b_105b_servicemanual" provided here in the service manual area.
On page 272 in Figure 9.2b (Digital A1 circuit diagram, part b) the display contrast circuit schematic shows the NPN Transistor V1432 of type BC848C (see also the attached picture). Measuring the Base/Emitter diode showed a low resistance of 100 Ohms in both directions. Replacing that transistor by a NPN transistor of type BC847C solved the problem and the device was working correctly again.
The reason for choosing the BC847C instead of the BC848C are the Vcbo and Vceo of only 30 V of the BC848x series. The BC847x series has a Vcbo of 50 V and a Vceo of 45 V respectively and offers therefore a greater margin. The V1432 is placed between TP431 (LCDPWR, +5 V) and the -30 V connection from Analog Board A2. These conditions are too close to the absolute maximum ratings of the BC848x and are especially for higher temperatures critical.
Fluke 87 zebragumi / javítási tipp kerestetik
Sziasztok! Kedvenc igáslovamat is elérte a Fluke kór. A zebragumi az LCD alatt összetömörödött. Emiatt nem olvasható a kijelző. Megpucoltam, ha kézzel nyomom, jó. A régi gumiba bele van préselődve a NYÁK vezetősávok összes csíkja. kb. 12mm magas, és 40mm hosszú, és 2db kellene. A képen szépen látszik, ahogy összetömörödött... Ebay-en leltem repair KIT-et, de picit sokallom a közel 10e Ft árat a 2 gumiért.. Mégis 1986-ban gyártották szegényt a NYÁK szerint... http://www.ebay.com/itm/Fluke-87-Pantalla-LCD-Kit-de-reparacion-para-Faded-Como-Instrucciones-/191952706207 :( Mi a zebragumi angol "neve"? Van valakinek jó ötlete, hogy lehet a cserét ilyen horribilis pénzt nem elköltve megoldani? Köszönöm!
Fluke_9010A Micro-System-Analyzer with various CPU-POD's for sale
I have a long list of  Workshop proven & used  CPU-Emulator -Equipment
with full original-documentation for each part.
I do not know if it is allowed "here",  to make such an offer
and because it is a long list of 6-8 different CPU-Emulator-POD's
please contact me via p.m. if any interest.
You will then get a lot of more detailed pictures from the actual packed devices
Attention!
THESE ARE EXPERT DEVICES for Whorkshop and Repair-Technicians
used to read & work with IC's, Schematics and Datasheets (DAILY) ! 
It's like working with each CPU-Device-PIN
with full Control over its external PCB-World (elctrical & timing & TRI-State),
seen and working like from inside the specific CPU to the external Periphery !!!!!
And this works , regarding  DATA- ADRESS- & Control-BUS-Signals 
for different  interchangeable CPU-POD's with a common handling & usage on this
BASIC FLUKE9010A -Device, with script programmable and Tape Safe/Resore facility.
best regards Norbert                   
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