[TechAssist] Re: Sansui stereo reciever model 6060 no/low distorted audio cold, OK as warms
- From: "Don Hartigan" <hartstv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 7 Jul 2005 17:43:42 -0300
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" <tjanphyl@xxxxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
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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