Service manuals, schematics, eproms for electrical technicians
MILITARY 15C210831 0-10DB 50-OHM PI RF ATTENUATOR SCH
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METER
SERVICE MANUAL
METER
SERVICE MANUAL
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MILITARY PI RF ATTENUATOR 15C210831 010DB 50OHM 15 210831 010 DB 50 OHM 10DB 0-10DB 50-OHM
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Relevant METER forum topics:
eladó 2 db műszer
1- Telmes RLC measuring bridge TR-2152 10pF-100 mikró 10H- 10mikróH 0,1 ohm-1Mohm
2- DC POWER SUPPLY
TR-9178 2X 40 V / 2 A szabályozható
http://kepfeltoltes.hu/100406/770700762P4060399_www.kepfeltoltes.hu_.jpg
http://kepfeltoltes.hu/view/100406/P4060404_www.kepfeltoltes.hu_.jpg
http://kepfeltoltes.hu/view/100406/P4060410_www.kepfeltoltes.hu_.jpg
http://kepfeltoltes.hu/view/100406/P4060408_www.kepfeltoltes.hu_.jpg
http://kepfeltoltes.hu/view/100406/P4060403_www.kepfeltoltes.hu_.jpg
Hi,
A friend offered Oscilloscope UNAOHM G4020 = BECKMAN 9020 = Voltcraft_2040
In first hours worked ok ...
I saw the 0,2 V 1000Hz and other signal in the cinescop.
But now I only see 1 or 2 dots (channel 1 or both or ch 2).
I can move the dots UP and DOWN, LEFT and RIGHT so the screen - cinesc. is working.
I test the trigger, connect CAL 0,2V 1KHz to ch 1 or 2 and the dot go up - down, invert, etc.
A sinos. wave, I can rotate TRIG LEVEL and the dot follow the wave.
But I can't see the wave in display.
Some examples of scope:
youtube.com/watch?v=3nBYp1pN40U
youtube.com/watch?v=fPq1KgQ5ggQ
youtube.com/watch?v=5osskamWJHg
Manual and schemat. I have the French and Germany version.
archive.org/details/voltcraft_Voltcraft_2040_Oscilloscope_Service_manual
https://elektrotanya.com/beckman-industrial_circuitmate_9020_sm.pdf/download.html
Can you please provide help?
Thank you,
Ruy
A friend offered Oscilloscope UNAOHM G4020 = BECKMAN 9020 = Voltcraft_2040
In first hours worked ok ...
I saw the 0,2 V 1000Hz and other signal in the cinescop.
But now I only see 1 or 2 dots (channel 1 or both or ch 2).
I can move the dots UP and DOWN, LEFT and RIGHT so the screen - cinesc. is working.
I test the trigger, connect CAL 0,2V 1KHz to ch 1 or 2 and the dot go up - down, invert, etc.
A sinos. wave, I can rotate TRIG LEVEL and the dot follow the wave.
But I can't see the wave in display.
Some examples of scope:
youtube.com/watch?v=3nBYp1pN40U
youtube.com/watch?v=fPq1KgQ5ggQ
youtube.com/watch?v=5osskamWJHg
Manual and schemat. I have the French and Germany version.
archive.org/details/voltcraft_Voltcraft_2040_Oscilloscope_Service_manual
https://elektrotanya.com/beckman-industrial_circuitmate_9020_sm.pdf/download.html
Can you please provide help?
Thank you,
Ruy
Do not delete the moderator entry! If you delete again the thread in is closed permanently!The incorrectly named topic suspended and will be deleted after 48 hours! Suspended state while others are not able to comment until you correct the address. Subsequent repair of the defective title (within 48 hours) by clicking on the "Edit" tab can be carried out.
Szervusztok!
Vasaroltam egy hameg 203-4-es szkopot.Jol mukodik.De megremultem mennyi por volt benne.Suritett levegovel kifujtam a port valamennyire.Szeretnem tudni milyen vegyszerrel lehetne tokeletesen kitakaritani.A kapcsolokat is.Koszonom elore a valaszokot.
Sziasztok!
A fenti műszer bekapcsoláskor az összes szegmenset bekapcsolja, majd elhalványodnak a szegmensek. Az ICL7106 kijelzőre menő kimenetein csak DC szint van. Az oszcillátora megy. Ez az IC hibája lehet?
A CD4030-as IC (IC3) egyik bemenete volt zárlatos a VCC felé.
Üdv: Jácint
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