Substitute for 2SC5707 ?

ehsjr · Oct 26, 2006

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

JW · Oct 26, 2006

On Thu, 26 Oct 2006 05:02:24 GMT ehsjr <ehsjr@bellatlantic.net> wrote in
Message id: <AjX%g.4564$PA3.4233@trndny04>:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Why not get the correct part?
http://www.bluestar-online.com/2SC5707_p/2sc5707.htm

Dieter Wiedmann · Oct 26, 2006

ehsjr schrieb:

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

MJD44H11 has significant lower gain and transition frequency, better
get the genuine part.

Regards,
Dieter

Patrick - townt.com · Oct 26, 2006

Hi ! Ed,

We do have stock of the 2SC5707 from warehouse. For this repair job, I
cannot sure, if you replace the 2SC5707 is OK or not.

We cannot sure your idea price for this component. But our shipping cost may
be around US$25.00

Thanks !

--
Patrick Cheung
townt.com
Address : 1805, Wu Sang House, 655 Nathan Road, Mongkok, Kowloon, Hong Kong
Tel : +852-25055838
Fax : +852-25058121
E-mail : patrick.cheung@towntarget.com.hk
Web-site : http://www.townt.com/towne/ or http://www.towntarget.com.hk

"ehsjr" <ehsjr@bellatlantic.net> ???????:AjX%g.4564$PA3.4233@trndny04...

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

Michael A. Terrell · Oct 27, 2006

ehsjr wrote:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

There are some for sale on Ebay.

Price: US $3.84
Shipping: US $3.95

<http://item.express.ebay.com/Industrial-Supplies_Electrical-Automation_Electronic-Components_2SC5707-SANYO-TRANSISTOR_W0QQitemZ170015480510QQihZ007QQptdnZElectronicQ20ComponentsQQddnZIndustrialQ20SuppliesQQadnZElectricalQ20Q26Q20AutomationQQcmdZExpressItem>

<http://www.audiolabga.com/mal_cart/mal_cart.php?find=2SC5707&search_request_button=Search>
$4.23 each + shipping.

--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

ehsjr · Oct 27, 2006

ehsjr wrote:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

Thanks to those who replied. I'll use one of the
links posted to buy a 2SC5707 - or scrounge one from a
defective LCD monitor. Turns out we have "recycling day"
scheduled for Nov. 4 and I may be able to get a broken
monitor there.

Ed

Patrick - townt.com · Oct 27, 2006

Hi ! Ed,

Can you tell us which package you request ?

As there is several package of the 2SC5707, we cannot sure our warehouse's
package is right package.

Waiting for your idea !

Thanks !

Patrick

"ehsjr" <ehsjr@bellatlantic.net> ???????:ksg0h.5159$Wp3.1813@trndny05...

ehsjr wrote:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

Thanks to those who replied. I'll use one of the
links posted to buy a 2SC5707 - or scrounge one from a
defective LCD monitor. Turns out we have "recycling day"
scheduled for Nov. 4 and I may be able to get a broken
monitor there.

Ed

Patrick - townt.com · Oct 27, 2006

HI ! Ed,

Our part no. is 2SC5707-TL-E.

Would you tell us it is the same as your request ?

Thanks !

Patrick

"Patrick - townt.com" <patrick.cheung@towntarget.com.hk> źśźgŠóślĽóˇsťD:45413de6$1_1@rain.i-cable.com...

Hi ! Ed,

We do have stock of the 2SC5707 from warehouse. For this repair job, I
cannot sure, if you replace the 2SC5707 is OK or not.

We cannot sure your idea price for this component. But our shipping cost may
be around US$25.00

Thanks !

--
Patrick Cheung
townt.com
Address : 1805, Wu Sang House, 655 Nathan Road, Mongkok, Kowloon, Hong Kong
Tel : +852-25055838
Fax : +852-25058121
E-mail : patrick.cheung@towntarget.com.hk
Web-site : http://www.townt.com/towne/ or http://www.towntarget.com.hk

"ehsjr" <ehsjr@bellatlantic.net> ???????:AjX%g.4564$PA3.4233@trndny04...

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

ehsjr · Oct 29, 2006

Patrick - townt.com wrote:

HI ! Ed,

Our part no. is 2SC5707-TL-E.

Would you tell us it is the same as your request ?

Thanks !

Patrick

Hi Patrick,

I do not know if 2SC5707-TL-E is the same. If you
can send me a sample, I can tell. But then I won't
need to buy one.

Your call.

Thanks,
Ed

"Patrick - townt.com" <patrick.cheung@towntarget.com.hk
mailtoatrick.cheung@towntarget.com.hk>> źśźgŠóślĽóˇsťD:45413de6
$1_1@rain.i-cable.com...
Hi ! Ed,

We do have stock of the 2SC5707 from warehouse. For this repair job, I
cannot sure, if you replace the 2SC5707 is OK or not.

We cannot sure your idea price for this component. But our shipping
cost may
be around US$25.00

Thanks !

--
Patrick Cheung
townt.com
Address : 1805, Wu Sang House, 655 Nathan Road, Mongkok, Kowloon,
Hong Kong
Tel : +852-25055838
Fax : +852-25058121
E-mail : patrick.cheung@towntarget.com.hk
mailtoatrick.cheung@towntarget.com.hk
Web-site : http://www.townt.com/towne/ or http://www.towntarget.com.hk

"ehsjr" <ehsjr@bellatlantic.net <mailto:ehsjr@bellatlantic.net
???????:AjX%g.4564$PA3.4233@trndny04...

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

ehsjr · Nov 5, 2006

ehsjr wrote:

ehsjr wrote:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

Thanks to those who replied. I'll use one of the
links posted to buy a 2SC5707 - or scrounge one from a
defective LCD monitor. Turns out we have "recycling day"
scheduled for Nov. 4 and I may be able to get a broken
monitor there.

Ed

Nope. Couldn't get a monitor, so I'll order the
part.

Ed

ehsjr · Dec 9, 2006

ehsjr wrote:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

Finally got the 2SC5707 and installed it. Monitor
works fine now. Thanks to all who replied!

Ed

ehsjr · Dec 6, 2006

ehsjr wrote:

ehsjr wrote:

ehsjr wrote:

My LCD monitor died. (Continuously attempts to power up,
fails, and restarts the power up attempt.) Naturally
I have no schematic for it. That said, I found a shorted
SCR (overvoltage circuit is my assumption) and a shorted
2SC5707 Sanyo NPN. Any idea of what to substitute for the
2SC5707? I'm clueless as to what it does in the monitor
without a schematic.

If it matters, the best I can come up with on paper by
searching through Mouser, Digikey, Onsemi, Fairchild
is a D44H11.

Thanks,
Ed

Thanks to those who replied. I'll use one of the
links posted to buy a 2SC5707 - or scrounge one from a
defective LCD monitor. Turns out we have "recycling day"
scheduled for Nov. 4 and I may be able to get a broken
monitor there.

Ed

Nope. Couldn't get a monitor, so I'll order the
part.

Ed

The parts *finally* arrived this afternoon. The package
was marked "returned for postage" so that explains the
delay. I may get a chance to install the transistor
& scr this weekend.

Ed

Substitute for 2SC5707 ?

ehsjr

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