Service manuals, schematics, eproms for electrical technicians
UNIVERSAL SPACE-PANIC
Type: 
(PDF)
(PDF)Size
2.5 MB
2.5 MB
Page
27
27
Category
OTHER
SERVICE MANUAL
OTHER
SERVICE MANUAL
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SPACEPANIC SPACE PANIC
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Relevant OTHER forum topics:
Hello!
Kaptam egy MEDION LIFETAB S9714 tablettet.
A hátér világításért felelős dc-dc konverter ic teljesen zárlatos volt.
Kivettem az ic-t így bekapcsol minden működik, de nincs hátérfény.
Vagyon mi lehet az ic tipusa? Az ic 2x2mm. Már átnéztem vagy 15 féle tab alaplapot de egyeken se ez a típusú ic található.
Köszi!
Szevasztok
Egy kis segitség kellene,enek az ellenállásnak az azonositásához,használtam az oldal szin kalkulátorát,de ott ezekre a szinekre22,1 omot adott,nekem 200 om van a panelre irva,mérve 217 omot mérek.
sziasztok
drivert keresek az emlitett scannerhez,...amit a netrol le lehet tolteni nem passzentol,azt mondja ...corrupt media detected,mi ez?
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.
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