Service manuals, schematics, eproms for electrical technicians
IC OZ960 INVERTER SCH.
Type: 
(DJVU)
(DJVU)Size
112.4 KB
112.4 KB
Page
1
1
Category
OTHER
SERVICE MANUAL
OTHER
SERVICE MANUAL
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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:
Sziasztok!
Éppen szervizelek egy retró dupla cd-lejátszót (Stage-Line CD-250DJ), a benne lévő lézerfej SONY KSS-213C típusú.
Na csak annyit szeretnék kérdezni hogy mi a különbség az alábbiak között:
KSS-213B
KSS-213C
KSS-213D
KSS-213E
KSS-213F
KSS-213R
KSS-213V
Érdemes-e a C-s helyett mást belerakni, lesz-e különbség?
Előre is köszi a választ.
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,üdv itt lesz egy pár kínai töltő elektromos járműhöz biciklihez
Szervusztok !
Nagymamám hallókészülékével támadt egy kis gond. Nevezetesen az, hogy folyamatosan sípol, gerjed. Még új elemmel is. A kis potméter ami a hangerőt hivatott állítani, gyakorlatilag már a leg csekélyebb mozdításra is gerjedésre bírja a készüléket. Található továbbá még 2 mikro trimmer is a készüléken. Ezeknek a funkciójára lennék kíváncsi, ha tudná valaki. (mic. gain talán ? )
Ha esetleg egy kapcsrajz is lenne, az is sokat segítene.
Köszönöm !
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