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STR-DA30ES Woes..... |
mrflex65
Rank: Sony Fan
Joined: Jan 16, 2012
Posts: 3
From: North carolina
 |  Posted: 2012-01-16 11:34
Hello!newbie here
I recently acquired a str-da30es for cheap which worked fine for a couple of hours, then the dreaded "protection fan error"kicked in!Fixed alot of bad solder joints, that didn't fix it downloaded the service manual and found out there was 0v. at pin 79 of IC1201 which is the protector circuit and should be 4.9v? there are no blown fuses and checked the voltages at the regulators along with the limiters and amps, those appear to be ok "except" the B+ and B- which are reading 50.1v!As per the service manual it should be close to 60v? I know this is a "combo" manual but are the B+ voltages the same in all three receivers? Need serious help with this one....
Regards.
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jehill
Premium Member
Rank: Sony Senior Advisor
Joined: Mar 13, 2003
Posts: 13796
From: Sewell, NJ
 | Posted: 2012-01-17 11:42
Welcome to Agoraquest! Provide a link to the service manual and I will take a look. Generally, the B+ and B- voltages are proportional to the rated power. Your model may be a lower power model.
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mrflex65
Rank: Sony Fan
Joined: Jan 16, 2012
Posts: 3
From: North carolina
| Posted: 2012-01-17 11:58
maybe this will work....
[ This message was edited by: mrflex65 on 2012-01-17 12:00 ]
[ This message was edited by: mrflex65 on 2012-01-17 12:04 ]
[ This message was edited by: mrflex65 on 2012-01-17 12:07 ]
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gonzo703
Rank: Sony Fan
Joined: Nov 04, 2011
Posts: 5
From: Fairfax, VA
| Posted: 2012-02-21 03:59
STR-DA30ES with intermittent sound, constant clicking. Powers on fine and have never scene the protector fan error.
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jehill
Premium Member
Rank: Sony Senior Advisor
Joined: Mar 13, 2003
Posts: 13796
From: Sewell, NJ
| Posted: 2012-02-21 15:56
Welcome to Agoraquest! The clicking is coming from the speaker relays. Either protective action is causing them to energize and deenergize or perhaps there are cold solder connections to the relay coil. There may also be poor circuit board ground connections. If it were me, I would open up the receiver and look for cold solder connections or poor mechanical connections.
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gonzo703
Rank: Sony Fan
Joined: Nov 04, 2011
Posts: 5
From: Fairfax, VA
| Posted: 2012-02-21 19:28
Thank you for the kind welcome. I have done this I believe to the best of my ability looking for cold solder connections and poor mechanical connections. Everything looked tip top. It's a bit overwhelming examining the boards for cold solders. I know what they look like I've googled it. They also quite possibly might be physically loose which would make it easier to locate. I definitely put my finger on every inch of the boards in all directions and didn't find anything suspect. Lack of experience is discouraging.
the da30es worked all afternoon today. Clicking sounds continued but the speakers played strong over the clicking.
[ This message was edited by: gonzo703 on 2012-02-21 19:55 ]
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rtom701
Rank: Sony Fan
Joined: Oct 07, 2012
Posts: 1
From: USA
| Posted: 2012-10-07 09:38
MrFlex65, do you still have issues with your STR-DA30ES? I am in the market for some parts (specifically the power transformer) and would be willing to make an offer to you. Thanks!
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Maxxwire
Moderator
Premium Member
Rank: Sony Adept
Joined: Aug 29, 2002
Posts: 25735
From: Portland, Oregon - USA
 | Posted: 2012-10-12 05:09
On 2012-02-21 19:28, gonzo703 wrote:
the da30es worked all afternoon today. Clicking sounds continued but the speakers played strong over the clicking.
gonzo703- Do you have any updates on the condition of your DA30ES Receiver to report?
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mrflex65
Rank: Sony Fan
Joined: Jan 16, 2012
Posts: 3
From: North carolina
|  Posted: 2012-10-12 05:33
On 2012-10-07 09:38, rtom701 wrote:
MrFlex65, do you still have issues with your STR-DA30ES? I am in the market for some parts (specifically the power transformer) and would be willing to make an offer to you. Thanks!
I got rid of this receiver a long time ago. Sorry i can't help you.
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