View previous topic :: View next topic |
Author |
Message |
Jools
Joined: 16 Jan 2007 Posts: 1
|
Posted: Fri Jan 19, 2007 1:50 pm Post subject: Samsung portable TV (CI-3312) - no sound on UHF input |
|
|
I have a little Samsung portable (model = CI-3312Z / SN 19433DAA401282) which was fine until after my daughter used it watch a DVD on via DVD player recently.
Since then it has the following fault:-
When using UHF input it has (correct) sound for the first second or so which then disappears and you are left with the (perfectly good) picture only.
However when using the scart input it has picture & sound ok.
As it looked like simple problem and the picture is good (as is the sound when it’s there !) I hoped I might be able to find a simple fix.
I’m not an electronics expert but a mechanical engineer who knows the difference between a diode and a resistor. I had a quick go at de-fluffing it and re-soldering any joints that looked bad on the main board but it was just the same afterwards.
Any help appreciated !
Many thanks
Jools |
|
Back to top |
|
|
minnie
Joined: 18 Aug 2005 Posts: 2880 Location: Hell
|
|
Back to top |
|
|
Guest
|
Posted: Fri Jan 26, 2007 4:25 pm Post subject: |
|
|
Minnie,
many thanks - chip is on order.
the legs of the R51 resistor look blackened so I guess I should replace it as a matter of course. Only problem is the colour code is almost impossible to read - It measures out at 250 ohms but I think the code (red / white / yellow indicates it should be 290K - any chance someone can tell me what it should be from the schematic.
Ta
Jools |
|
Back to top |
|
|
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
irf640b irfs640b Fairchild Semiconductor • One Touch 4 II maxtor • hfe avr-1100 1100rd 1150 1160 1170 118 • A21GV1 panasonic • 1400 IBM • DAEWOO+CM537+CHASSIS+DTH14Q1FS+TV+SM Dae • AV27D104, AV27D304 AV27430, AV27432 JVC • Primare CDI10 CD Receiver sm . Rare and • Panel CHIMEI INNOLUX M190CGE-L20 2 [DS] • 5953-2009 13290B Development Terminal Br •
|