Service manuals, schematics, eproms for electrical technicians

AMPEX VR-1000B TAPE-VCR

VIDEO-DVD - SERVICE MANUAL
Type: (PDF)
Size
14.4 MB
Page
299
Category
VIDEO-DVD
SERVICE MANUAL
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  • Also known:
    AMPEX VR-1000B TAPEVCR VR1000B VR 1000 1000B TAPE VCR TAPE-VCR
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  • See related repair forum topics below. May be help you to repair.
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Relevant VIDEO-DVD forum topics:
Nokia VR4773 videó nem veszi be a kazettát
Sziasztok! A sógorom ideadta az apósának a videóját (címben említett típus) javításra. Nincs tapasztalatom videó javításban, de a rokoni kérés miatt elvállaltam. A hibajelenség az, hogy nem veszi be a kazettát, a betöltő motor nem indul el. Ha az érzékelőket becsapom azt el tudom érni, hogy a szalagbefűző mechanika (kazetta nélkül) működésbe lépjen. Kézzel betöltve a kazettát kiadni nem óhajtja. Úgy láttam nincs fent a rajz a tanyán (feltettem kérésben), ahogy néztem a főbb alkatrészek jobbára sony és daewoo gyártmányúak, tehát nincs kizárva, hogy más márkanéven is árulták a videót. Kérnék segítséget a hiba okának feltárásában. Nyilván tele van mindenféle érzékelőkkel a kazetta érzékelésére, gondolom ezeket kéne először megvizsgálni csak éppen nem tudom mi hol van és mire jó.
Sony Sl-S770 vcr interrupted playback and AV display issues

I'm encountering an issue with my Super Betamax player. During playback, some cassettes abruptly stop playing at seemingly random points, accompanied by a sound similar to the one made when a tape reaches its end. This interruption also renders the rewind and forward buttons unresponsive. However, it does not impede the manual forwarding or rewinding of the cassette. The only solution seems to be ejecting the cassette and reinserting it. Occasionally, even this workaround fails, allowing only two seconds of playback before the problem recurs.

I sought guidance from the Mister Betamax troubleshooting page, which indicated that the tape safety device might be the root cause. I received additional advice suggesting that the issue could stem from one of the sensors within the VCR, possibly due to oxidized contacts causing intermittent operation. It was recommended to resolve this by carefully cleaning the contacts on the sensor switch responsible for detecting loaded tapes or the sensor that detects if the tape is "record-protected." Another suggestion was to monitor the output of these switches using an oscilloscope or voltmeter to determine if they are indeed the source of the problem.

I'm eager to hear if anyone has additional advice or personal experiences to share regarding this issue.

Additionally, I'm facing an AV cable problem where the yellow AV cable fails to display any video. While it used to work correctly, the AV audio cable still functions properly. As a temporary workaround, I've been using a coaxial cable and routing it through another VCR to utilize its AV output. However, I'm interested in exploring potential solutions to fix the issue with the yellow AV cable, if possible. Any insights or suggestions would be greatly appreciated.

ITT NOKIA VR 3998 HiFi VPS
Szevasztok! ...ha tudtok,légyszives segítsetek ! Bármilyen leírása,rajza,-ha egyáltalán létezik-jót tenne,jól jönne! Nincs ZOOM,nem rakja ki azt a 6 ? vagy 9 műsort ablakokba,amiből választani lehet,amúgy a régen(évekig félre volt téve) fölprogramozott csatornák jönnek,nézhetők! Géza
Panasonic NV-HV50
Sziasztok! A fent nevezett videomagno kazetta berakás után befüz és azonal a lejátszásnál nagyobb sebességgel tekerni kezd és semilyen gombnyomásra nem hadja abba.A kijelzön látszik hogy vált üzemodot ha valami parancsot adsz de a mechanika nem csinál mást.Még ha standby-be kapcsolod akkor is a kijelző lekapcsol de a mechanika csak forog.A kazettát kivenni is csak ugy lehet ,hogy áramtalanitás után nyomkodni kell az ejectet és akkor kiadja.Ha valakinek van ötlete megköszönöm a segitséget!
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