Service manuals, schematics, eproms for electrical technicians
BRITISH VALVE CROSS-REFERENCE CIRCA. 1920-1930
Type: 
(PDF)
(PDF)Size
112.6 KB
112.6 KB
Page
2
2
Category
OTHER
OTHER
OTHER
OTHER
If you get stuck in repairing a defective appliance download this repair information for help. See below.
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar british manual?
Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar british manual?
Advertisements
Document preview [1st page]
Click on the link for free download!
Document preview [2nd page]
Click on the link for free download!
Advertisements
Please tick the box below to get download link:
- Also known:
BRITISH VALVE CIRCA. 19201930 CROSS REFERENCE 1920 1930 1920-1930
- If you have any question about repairing write your question to the Message board. For this no need registration.
- If the site has helped you and you also want to help others, please Upload a manual, circuit diagram or eeprom that is not yet available on the site.
Have a nice Day! - See related repair forum topics below. May be help you to repair.
Warning!
If you are not familiar with electronics, do not attempt to repair!
You could suffer a fatal electrical shock! Instead, contact your nearest service center!
Note! To open downloaded files you need acrobat reader or similar pdf reader program. In addition,
some files are archived,If you are not familiar with electronics, do not attempt to repair!
You could suffer a fatal electrical shock! Instead, contact your nearest service center!
so you need WinZip or WinRar to open that files. Also some files are djvu so you need djvu viewer to open them.
These free programs can be found on this page: needed progs
If you use opera you have to disable opera turbo function to download file!
If you cannot download this file, try it with CHROME or FIREFOX browser.
Translate this page:
Relevant OTHER forum topics:
Üdv
A saját kaputelefonom érdekes hibát produkál.
Egyik pillanatról a másikra romlott el, tehát nem fokozatosan állt elő a hiba. Mindent funkció üzemel, csenget kaput nyit csak éppen ha le van téve a kagyló akkor az utcán zúg ha felemel a kagyló. Az búgás mintha az 50Hz rá lenne kötve a hangszóróra. Tápot ellenőriztem nincs benne váltó és a stabilizátor is jól működik. kapcsoló kontaktsprét kapott de jól érzékelhetően vált.
Típusa: COMMAX DP-2SBN rajzom sajnos nincs hozzá. Nem a primitív tranyos kütyü mert 2 ic is lakik benne. Tanácstalan vagyok mi pusztulhatott meg benne.
Laci
Sziasztok.
A segítségeteket kérem egy M.N.C.autós rádióban található
3124-05 feliratú smd ötlábú stab.ic beazonosításában.
A másik ic-t pedig nemtom beszerezni ez egy Sharp tv-be található.
NJM2375AD
előre is köszönöm a segítséget
üdv:hifi64.
Sziasztok! A képen látható készülékhez lenne szükségem a segítségetekre, ha valaki látott, találkozott már ilyennel? Sajnos ez meg se nyikkan. Van benne egy táp, amit a hálózatra csatlakoztatva tölt egy akkut, erről működne. Alaphelyzetben sehol nincs fesz., a hátulján lévő kar megtekerésekor ami egy harmonika szerű fújtatót működtet, egy a mosógépekből ismert nyomáskapcsoló zárásával kapcsolja be a tápot. Feszültségek megjelennek, de nem tudom hol mennyinek kéne lenni? A hátulján van egy poti, egy fokozat kapcsoló, és egy EIN-AUS feliratú kapcsoló, de bárhová kapcsolom-tekerem nem történik semmi. A segítséget előre is kösz.
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.