|11-04-2012||Page #30 of Service Manual.|
|12-04-2012||Looking for "Sony Semiconductor Replacement Handbook 19||Anyone can help ?|
|12-04-2012||SERVICE MODE TV TECHNIKA LCD 37-207||Hi, who can help me to set the service mode TV TECHNIKA LCD 37-207 ?. thanks|
|12-04-2012||Vtech thanks for the response.
I should have been more specific.
This is one of several diodes in a switch-mode PS from a Tascam/Teac semi-professional sound mixer/PC interface. I have a schematic for a similar model that uses schottky/barrier diode|
|12-04-2012||I meant to mention the presumably schottky/barrier diode - I tested out of circuit, of course. . .|
|12-04-2012||about code,||thanks for your reply, but i don't have the manual, a tip to piont me in the right direction would have been great,thanks anyway,.|
|13-04-2012||Ok, I see.
Assuming the 48V in question is scan drived, you must use a fast switching rectifier. The main reason behind using a schottky is to provide the lowest possible drop across the diode & less noise.
Are you saying there are 2 diodes in the|
|13-04-2012||Possible solution||Just as a resource to others for what seems to be a common problem - I've recently encountered the same issue with the identical Eiki model. I suspect one of the surface mount electrolytic capacitors was at fault near the STR-Z2156, but changed all the e|
|13-04-2012||Component ID||Ahhhh . . Fast or ultra-fast recovery diode - that's most likely the problem. I didn't think of that!
The rectifier I subbed (IN4007) is in the secondary side, conventional half-wave config with filter cap-series choke-filter cap configuration. I didn|
|13-04-2012||philips lcd 42pf421 310430339584 philips schematics please||hello there i have taken my philips tv to a dodgy repair man who has taken out the transistors and parts from the power board does anyone know where i can ifind the schematics of the board 310430339584 philips psu|
|14-04-2012||bk 2125 oscilliscope||Hey all, I am new to the forum, and new the wonderful world of electronics. I just purchased a bk 2125 oscilliscope, off ebay. while the unit seems to be functioning i am having some trouble. I have the owners manual, and the application guide, and ha|
|14-04-2012||Does the intensity/brightness/focus has any effect on the missing part of the trace?|
|14-04-2012||no, the problem persists at all intensity levels, some more playing around and i have been able to see some wave forms but not square ones. wierd huh?|