[TechAssist] Re: Sansui stereo reciever model 6060 no/low distorted audio cold, OK as warms
- From: "majorthom@xxxxxxxxxxxxx" <majorthom@xxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 7 Jul 2005 14:22:01 -0700 (PDT)
Great.
Pete
Phil Bader <tjanphyl@xxxxxxxxxxxxxxx> wrote:
Actually I had a bag-o 2N2222/ NTE85's that I put one in, and runs cool.
I thought I did not fix it with this transistor because I still had some
distortion,but seems I had wet the area with my freeze spray
(condensation). after drying, I let it stay off 30 mins and powered up
full clear volume. Tonight will be the test-rest! Try in AM.
Phil
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
Don Hartigan wrote:
>Phil;I'd try a beefer xtsr.A 2sc1364 is a general purpose NPN =NTE85.Pop in
>a NTE152 & see if it improves operation,especially if the 2SC1364 is running
>hot.Also an NTE289A would probably work as well.The beauty of an NTE152 is
>it has it's own heat sink..
>Don of HARTS-TVCR"ASC"
>9 Robert St.,Oromocto,NB,Canada,E2V3N2
>Tel#506-357-9785,Fax#506-357-6010
>hartstv@xxxxxxxxxxx
>----- Original Message -----
>From: "Phil Bader"
>To:
>Sent: Thursday, July 07, 2005 4:18 PM
>Subject: [TechAssist] Re: Sansui stereo reciever model 6060 no/low distorted
>audio cold, OK as warms
>
>
>
>
>>Transistor TR603 seems very heat/cold sensitive. It's a "C1364"
>>(2SC1364?) I can kill or restore audio with hot air and freeze mist.
>>Located on the ckt board with the speaker relay and 5 fuses.
>>Critical part?
>>Phil
>>
>>Philip Bader
>>Jan Phyl TV Inc. (estab. 1976)
>>3420 Recker Hwy. Winter Haven, Fl. 33880
>>Fax (863) 299-8821
>>email: tjanphyl@xxxxxxxxxxxxxxx
>>
>>
>>
>>becyn wrote:
>>
>>
>>
>>>probably a cap, but those old Sansui's just SUCK.
>>>Some the designs had unstable circuits prone to ocillation.
>>>
>>>Jim McVey
>>>McVey Alltronix
>>>327 Broadway
>>>Newburgh N.Y. 12550
>>>
>>>"If it doesn't play...
>>>CALL MCVEY !!!!!!"
>>>Factory authorized
>>>service for over 20
>>>major brands.
>>>845 561 8383
>>>(Last of the Mohegans)
>>>
>>>Phil Bader wrote:
>>>
>>>
>>>
>>>
>>>
>>>>Hard to compress symptom in subject line accurately.
>>>>Sansui model 6060 am/fm stereo reciever amp.
>>>>If unit is cold (sitting hours) and I power it on, it has no sound at
>>>>all, either channel.(meters indicate FM signal is tuning and recieved)
>>>>After a few minutes I hear a low volume very distorted audio, gradually
>>>>increasing in volume and clearing as well, till it's full volume and
>>>>clear.Will stay that way as long as it's run. Sometimes, starts cold
>>>>with the low distorted audio.and again, gets better. Both channels
>>>>equally affected. not a stereo expert here, and this is an oldei the
>>>>customer loves. Rapping/tapping, flexing boards no effect. I'm leaning
>>>>towards a thermal lytic cap... Any known histories? Same with headphones.
>>>>Phil Bader
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
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Peter Neal
Neal Electronics
1905 E. Wm.Cannon
Austin,TX 78756
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