[TechAssist] Re: samsung k50mvro3 chassis shorting output transistor
- From: "Intrepid Video Support" <support@xxxxxxxxxxxxxxxxxx>
- To: "Techassist" <techassist@xxxxxxxxxxxxx>
- Date: Tue, 17 Feb 2004 22:33:05 -0500
I would use something other than NTE/ECG..then see if it holds up.
Also, replace C810.
Jeff Dougherty
Intrepid Video TV/VCR
263 S Front St
Steelton PA 17113
fax...717-564-4952
www.intrepid-video.com www.tech-repair.net
----- Original Message -----
From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Wednesday, February 18, 2004 12:24 AM
Subject: [TechAssist] Re: samsung k50mvro3 chassis shorting output transistor
Hi Don
output transistor was a d1878...ecg2331 will check the regulated voltage
and the caps you indicated.
Thanks for the info..I think this set is a canadian unit
Don Hartigan wrote:
>Alvin;Couple of questions.
>What is your reg. B+.It should be 125vdc.Did you replace HOT with a 2SD1650
>& did you check caps C407,C408 & C415 off the collector of HOT.Also make
>sure R809=680 ohm & R812=15 Kohm,have not changed
>value...........................
>Don of HARTS-TVCR''ASC''
>9 Robert St,Oromocto,NB,Can,E2V3N2
>hartstv@xxxxxxxxxxx
>Tel-5063579785,fax-3576010
>cel-4701719
>----- Original Message -----
>From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Tuesday, February 17, 2004 8:54 PM
>Subject: [TechAssist] Re: samsung k50mvro3 chassis shorting output
>transistor
>
>
>
>
>>Hi Bob
>>the model number is MVR2100C
>>Alvin
>>Gemini Computer & TV wrote:
>>
>>
>>
>>>What is the model number (not the chassis number)?
>>>
>>>Bob Waterman, CET® #RI-28
>>>Master Technician License #9109
>>>Service Manager / Parts Manager
>>>Gemini Computer, TV, & Security Alarms
>>>(508)695-7302
>>>(508)695-7769 FAX
>>>geminitv@xxxxxxxxxxxxxxxx
>>>geminitv@xxxxxxx
>>>www.geminicomputertvsecurityalarms.com
>>>
>>>
>>>----- Original Message -----
>>>From: "Alvin Rose" <ajroseca@xxxxxxxxxxxxxxx>
>>>To: <techassist@xxxxxxxxxxxxx>
>>>Sent: Tuesday, February 17, 2004 5:54 PM
>>>Subject: [TechAssist] samsung k50mvro3 chassis shorting output transistor
>>>
>>>
>>>
>>>
>>>
>>>
>>>>Hi Guys
>>>>We have a Samsung K50mvr03 which is a 14 inch tv-vcr combo
>>>>Unit had a shorted output transistor..Replaced it and the
>>>>1 ohm fused resistor also the flyback transformer..Set ran
>>>>for a short time and then shorted transistor again..Checked the
>>>>yoke for arcing nothing noted do not have a pdf of this unit
>>>>any suggestions or help would be appreciated.
>>>>Alvin Rose
>>>>Radio & Tv Centre
>>>>Marystown, Nfld
>>>>
>>>>
>>>>
>>>>
>>>>
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