[TechAssist] Re: Mitsubishi CS3520R need Schematic and Tips
- From: "tony saracco" <tcselectronics@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 14 Oct 2003 15:33:53 -0500
Usually what happens here is the 470uf 50v ( C914) cap next to the reg ic
leaks and the electrolyte will dissolve one end of diode D904 effecting the
reg feedback loop bringing B+ to max. Change C914, C916 and D904 ( can sub
with nte552) and clean any electrolyte off board then replace hout again. I
sent you privatly a copy of PWS schematic.
Tony Saracco
TCS ELECTRONICS
Elgin , IL 60120
847-695-1928
tcselectronics@xxxxxxxxxxxxxxxx
----- Original Message -----
From: <MDileo0000@xxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, October 14, 2003 2:43 PM
Subject: [TechAssist] Mitsubishi CS3520R need Schematic and Tips
> Replaced shorted hybrid power IC901, STRS5141G. Tested and replaced
several
> caps on smps board and shorted HOT 2SD1879. The B+ supply voltage runs up
over
> 250vdc and blows the HOT transistor. I need a schematic of this power
supply
> ( separate circuitboard) to understand what's going on. Would appreciate
> immensely if someone will upload a copy to the member's area. Thanks,
>
> Dominic DiLeo
> Atlantic TV
> Freeport, Maine
>
****************************************************************************
*
> Classifieds! Buy or Sell!
> http://sell.tech-assist.org
> The Tech Address Book:
> http://www.tech-assist.org/secure/tip/contact.htm
> Add a Repair Tip Here, or Change/Remove your Email Address:
> http://www.tech-assist.org/secure/tip/main.htm
> Lost Password:
> http://www.tech-assist.org and select "Lost your Login Info?".
> Email Archives:
> //www.freelists.org/archives/techassist/
>
>
*****************************************************************************
Classifieds! Buy or Sell!
http://sell.tech-assist.org
The Tech Address Book:
http://www.tech-assist.org/secure/tip/contact.htm
Add a Repair Tip Here, or Change/Remove your Email Address:
http://www.tech-assist.org/secure/tip/main.htm
Lost Password:
http://www.tech-assist.org and select "Lost your Login Info?".
Email Archives:
//www.freelists.org/archives/techassist/
Other related posts:
