Service manuals, schematics, eproms for electrical technicians

JVC CA-S200.

AUDIO - SERVICE MANUAL
Type: (DJVU)
Size
753.8 KB
Page
21
Category
AUDIO
SERVICE MANUAL
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  • Also known:
    JVC CAS-200. CAS200. CAS 200 CA S200. CA-S200.
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  • See related repair forum topics below. May be help you to repair.
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Relevant AUDIO forum topics:
JVC CA-UXM3R mini-hi-fi CD probléma ( megoldva )
Üdv !

CD-k belvilágában jártas kollégák segítségét kérem !

A tárgybani készülék kb.3 évig nem volt bekapcsolva,a CD kivételével minden funkciója tökéletesen működik ,pupos kondit nem találtam.

CD -t behelyezve 1-et forgat a motor és " no disc " üzenettel  leáll . Optikát tisztítottam ,fejkábelt megmozgattam,de azt hiszem nem itt kell keresni a hibát !

Köszönöm a segítséget !

Tisztelettel : Balta István
Turntable Victor/JVC TT-71
Given:

Victor TT-71, neon lamp does not light, speed is lower than normal.  This is subsequent some short circuit the owner does inside the device.  No further details.

I found out the VICTOR QL7 have the same motor driver amd I downloaded the service manual that I attached here in case this manual is not already uploaded.

Looking at the diagrams I found out that at TP3 (same with pin5 of IC803) instead if that rectangular signal, I have nothing but 5VDC and a negative or positive short spike whenever I'm starting or stopping the motor and 
Under the circumstances I suspect IC803 is defective.  The bad thing, IC803 is NPC SC8043.  Also I wonder if the crystal is fine (except that I wonder what can be wrong with a crystal after some short circuit).

Does anybody have any more suggestion?

Also, where can NPC SC4043 be sourced?  Also, a crystal 9.054MHz?

Thanks in advance,
Corneliu
JVC SP-PWA9 erősítő
JVC SP-PWA9 tipusú erősítőhöz keresek kapcsolási rajzot, a hiba jelenség: nem szól! Az erősítő bonyolultsága miatt elég nehézkes lenne javítani rajz nélkül, ha netán valakinek megvan és át tudná küldeni , megköszönném! Az erősítőhöz tartozik egy DVD lejátszó is, tipusa:XV-THA9R
Kvarc azonosítása: K ÐS5F (JVC KD-G401 autórádióból) Azonosítva!
Kedves kollégák! Egy autórádióban találkoztam ezzel a kvarccal, de semmi infót nem lelek róla. Pici, hengeres tokozása van, a jelölésben a D betű szára át van húzva. A kapcsolási rajzon nincs feltüntetve frekvencia, a típus is csak egy JVC azonsító szám. ( QAX0401-001 ) Minden infót köszönök! Üdv: Jácint
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