[TechAssist] Re: Sony STR-DE405
- From: "David Lessard" <mrfixit@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 28 Jan 2003 11:25:28 -0500
Gentlemen,
I finally got around to looking at this unit again. It will power-up, but
most of the time it goes right in to "PROTECTION" mode, occasionally it will
work for 20 - 30 seconds, then "PROTECTION" mode. When it does work, I
notice the audio output flucuates a bit, sort of like a low frequency
fluttering sound (+50 & -50 are stable during this). Are there any common
problems with this unit? What causes protection to activate? I know nothing
about this particular unit, any help would be greatly appreciated. Would any
member have a schematic please? Thanks.
David Lessard
mrfixit@xxxxxxxxxxx
-----Original Message-----
From: techassist-bounce@xxxxxxxxxxxxx
[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of LeRoy Westlund
Sent: Sunday, December 29, 2002 4:46 PM
To: techassist@xxxxxxxxxxxxx
Subject: [TechAssist] Re: Sony STR-DE405
David,
What is the problem with this unit ?
If your outputs seem to be OK, check for bad solder on R806.
should have +42.8 volts on both sides of R806. It provides the +24 volt
source for the speaker relay.
LLW
LeRoy Westlund
Westlund TV & Electronics " It's such a pretty world
93 North Main today !....
Centerfield, UT 84622-0087 Look at the Sunshine. "
Ph./Fax 435-528-3822 :-)
mailto:LLW@xxxxxxxxxx
-----Original Message-----
From: David Lessard <mrfixit@xxxxxxxxxxx>
To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
Date: Sunday, December 29, 2002 1:04 PM
Subject: [TechAssist] Re: Sony STR-DE405
>
>Yeah, got his reply. I guess the measurement to ground on this pin is
>normal, sort of, still wondering why am I measuring 10 ohms to anaglog
>ground here if this pin is supposed to be connected to analog ground.
>Something to think about. Regardless, I'm going to fire the beast up, I'll
>let you know.
>
>-----Original Message-----
>From: techassist-bounce@xxxxxxxxxxxxx
>[mailto:techassist-bounce@xxxxxxxxxxxxx]On Behalf Of teltek2
>Sent: Sunday, December 29, 2002 2:56 PM
>To: techassist@xxxxxxxxxxxxx
>Subject: [TechAssist] Re: Sony STR-DE405
>
>David;
>Forgot a Panday...he's your Sony guru. Helped me out a couple of times.
>
>-Ed-
>Tel-Tek Electronics
>Ontario-Canada
>
>teltek2@xxxxxxxxxxxx
>----- Original Message -----
>From: "D Panday" <dpanday@xxxxxxxxxxx>
>To: <techassist@xxxxxxxxxxxxx>
>Sent: Sunday, December 29, 2002 2:45 PM
>Subject: [TechAssist] Re: Sony STR-DE405
>>
>> David,
>>
>> IC300 is the Surround Processor with Pin1 Vss (AGnd).
>> Panday
>>
>> >From: "David Lessard" <mrfixit@xxxxxxxxxxx>
>> >Reply-To: techassist@xxxxxxxxxxxxx
>> >To: <techassist@xxxxxxxxxxxxx>
>> >Subject: [TechAssist] Sony STR-DE405
>> >Date: Sat, 28 Dec 2002 17:29:54 -0500
>> >
>> >Techs,
>> >
>> >Does anyone know the function of IC300 (LV1011)? I'm reading 10 ohms
>> >between ground and pin #1, not sure if this is normal. Thanks again
>> >gang. Happy New Years.
>> >
>> >"Share what you know, Learn what you don't"
>> >
>> >David Lessard
>> >Alexandria Electronics
>> >50 Harrison Street
>> >Alexandria, Ontario
>> >K0C-1A0
>> >mrfixit@xxxxxxxxxxx
>> >
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