The redshifts of quasars are of cosmological origin. Usually, quasars are categorized as a subclass of the more general category of AGN. The radiant energy of quasars is enormous the most powerful quasars have luminosities thousands of times greater than that of a galaxy such as the Milky Way. Gas in the disc falling towards the black hole heats up because of friction and releases energy in the form of electromagnetic radiation. This emission from an AGN is powered by a supermassive black hole with a mass ranging from millions to tens of billions of solar masses, surrounded by a gaseous accretion disc. It is sometimes known as a quasi-stellar object, abbreviated QSO. So, I can find them, or cross the part numbers to replacement parts.Īre Circa 1988 to early 1989.Artist's rendering of the accretion disc in ULAS J1120+0641, a very distant quasar powered by a supermassive black hole with a mass two billion times that of the Sun Ī quasar ( / ˈ k w eɪ z ɑːr/ KWAY-zar) is an extremely luminous active galactic nucleus (AGN). I want the Orignal Part Numbers of the "End Sensors" and other components. I'm suspect that the tape end sensors could be the problem.īut because of the age of this VCR, parts are getting hard to find. Re-Aligned the gears to match the switches default position, then mountedĬleaned and adjusted Cassette Bucket Switches.Ĭhecked & cleaned the two belts Load Belt / Capstan Drive Belt. Then I re-assembled the switch, put it into it default position. Lightly polished the contacts, put some tuner spray on the contacts. I've pulled a part the "Mode Select Switch" and cleaned out the dirt and Slow Motion Tracking Control & Normal Tracking Control. What in the world is the urge that makes dogs chase cars that they have no intention of commandeering and driving?ģ00 Ohm screw terminals for UHF In & Out.Ĭomposite RCA Jacks for audio & video In & Out That may give you some very common troublesome things to check out initially. Especially its 220-330 ufd units that are on the cold / secondary side of the supply. If this uses the metal cased, side mount, SMPS supply in a 8 x 2 x 3 in housing that the main AC cord enters into, check for its electrolytic filter capacitors deterioration. spring loaded / compressed assembly fly apart. Or a plastic center core portion may have cracked and let the whole. transverse idler assebly may have had its clutch pads adhesive fail and letting the clutch felt spin free without its mechanically grabbing. Check and confirm that operation is present betwen the lamp sensing and the sensors, watching for high back leakage developing on one of the the photosensors.Ī center located. The newer units use an infrared emitter in place of that.thus being invisible. Plus, does it use touchpad keys for activating play-ff-rev-stop functions, or the top mechanical "piano" keyboard such as the old top loaders use?Ĭonsidering the complex electro mechanics transport / timing / niceties involved, with this unit, what one might initially suspect, are broken or sagged / slipping drive /loading/reel belts.Ī center/top lamp (Protrudes within the cassette bottoms large hole opening), which then shines across to beam out onto adjacent sensors that are for tape feed and end of tape sensing. it might even use top of unit cassette tray loading vice front loading. It probably doesn't even have an unitized VHF-UHF tuner. it is as old as Jobe.not saying that it won't respond magnificently to an efective repair. Looking at the common use of the same belt kits for the units, it looks as if the units parent their Punysonic models series also has models:Īll are using the same belts.so there are some 'mo numbers to work with using your Pubic lib-er-aries Sams Schematics Manuals Holy Mackeral dere Andy, you be 'de help EE and I be 'de help OR. What, no other helpees, well, I'll initially help get the troubleshooting juices flowing, specifically:
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