Service manuals, schematics, eproms for electrical technicians
IC OZ960 INVERTER SCH.
Type: 
(DJVU)
(DJVU)Size
112.4 KB
112.4 KB
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1
1
Category
OTHER
SERVICE MANUAL
OTHER
SERVICE MANUAL
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar ic manual?
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IC OZ-960 SCH. OZ960 OZ 960
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Relevant OTHER forum topics:
Üdv!
Új vagyok itt, és rögtön egy kéréssel fordulok hozzátok.
Nemsokára veszek egy hibás, témában megjelölt projectort, szükségem lenne hozzá egy service manual-ra, esetleg valaki tudna nekem segíteni ezügyben? Interneten csak fizetőset találtam, ha nem lesz más, akkor megveszem.
Előre is köszönöm!
There is no service manual of the Yamaha KX-250, anyone? I have fixed the mechanism of this unit, replaced the capstan motor (bad quality shreeking one with a better one), replaced the belts and works perfectly fine. Perfect audio, everything works great. However after testing it many times I reassembled the unit and did another test. Some tick noise is present in the audio.
The tick noise is present when executing a function, for example REW (most worse of all), FF or PLAY (only a few spikes randomly), also when using the remote. It is not a problem of the mechanism (motor) or a ground issue or something like that, disconnected it and problem still exists. Maybe it has something to do with static electricity because I have used the unit without HEAD cables attached to the mainboard (head input pins floating) however the pre-amplification circuit is working fine except of the noise. There are two IC's in this circuit, UPC1330HA head selector and a LA3161 pre-amplifier.
The LA3161 is a 2-channel preamplifier that has a circuit to reject ripple. Is it possible this IC is damaged (because of a (static) spike) and because of that the ripple rejection is no longer working? When I replace this IC the problem is solved?
Any ideas or do have some people any experience with this or recognize the sound behaviour discription? Anyone who can point me into the right direction?
Many thanks for any reply.
The tick noise is present when executing a function, for example REW (most worse of all), FF or PLAY (only a few spikes randomly), also when using the remote. It is not a problem of the mechanism (motor) or a ground issue or something like that, disconnected it and problem still exists. Maybe it has something to do with static electricity because I have used the unit without HEAD cables attached to the mainboard (head input pins floating) however the pre-amplification circuit is working fine except of the noise. There are two IC's in this circuit, UPC1330HA head selector and a LA3161 pre-amplifier.
The LA3161 is a 2-channel preamplifier that has a circuit to reject ripple. Is it possible this IC is damaged (because of a (static) spike) and because of that the ripple rejection is no longer working? When I replace this IC the problem is solved?
Any ideas or do have some people any experience with this or recognize the sound behaviour discription? Anyone who can point me into the right direction?
Many thanks for any reply.
Sziasztok!
Van két ilyen készülékem is, az érdekelne, mivel tudnám helyettesíteni a két fűtőszálat, ugyanis a hőre nem lenne szükségem.
Üdv: Jácint
Sziasztok!
Adott egy samsung kis tévé, aminek tápja "elszállt". Meghajó benne SSC3S111, ami "természetesen" épp nincs itthon. Van 3S211 és 3S121 gondoltam talán valamelyik jó helyette. Na de itt jön a probléma, nem találtam róluk semmilyen adatlapot ami alapján a "paramétereket" össze tudnám nézni... Nem próbált már valaki ilyet?
Köszönettel: Kiss Z.
Adott egy samsung kis tévé, aminek tápja "elszállt". Meghajó benne SSC3S111, ami "természetesen" épp nincs itthon. Van 3S211 és 3S121 gondoltam talán valamelyik jó helyette. Na de itt jön a probléma, nem találtam róluk semmilyen adatlapot ami alapján a "paramétereket" össze tudnám nézni... Nem próbált már valaki ilyet?
Köszönettel: Kiss Z.
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