Aston Martin DB9 Tail Light 2007 PCB: Identify S1J S63 Marked IC and Replacement Sources

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#1 21677679 24 Jul 2017 21:34

Kevin Angelo Ma Kevin Angelo Ma

Anonymous

Post #1
21677679 24 Jul 2017 21:34

Technically by inspection, we could find some of the visible defects. But in terms of short-circuitry or if its still good, you have to test that using tester/multimeters. You really need the tools for this. Even more experience to replace the parts that are damaged.
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#2 21677678 24 Jul 2017 21:43

Phuong Tran Phuong Tran

Anonymous

Post #2
21677678 24 Jul 2017 21:43

Hi,

I have PCB with shorted components and am looking to replace the components if possible.

This PCB is from a 2007 Aston Martin DB9 Tail light which controls the LED's, but it's not functioning. Shorted most likely due to water damage. I have already removed the damaged parts. Some pads came off with it.

So my questions are: Is the PCB still good? Can anybody help me identify Transistor/Resistor/IC? Anywhere I can purchase the replacement?

Thank you in advance.

edit: The markings on the damaged chip reads:

----------

| S 1 J |

| S 6 3 |

----------
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#3 21677680 24 Jul 2017 21:46

Phuong Tran Phuong Tran

Anonymous

Post #3
21677680 24 Jul 2017 21:46

Any recommendations on tools would be appreciated. Also, I'm willing to learn. I just need help identifying the parts to get me a step closer on getting this fixed.
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#4 21677681 25 Jul 2017 11:25

Richard Shadbolt Richard Shadbolt

Anonymous

Post #4
21677681 25 Jul 2017 11:25

Hi,

They seem to be two pad devices - and therefore, is there a bar at one end of the pad ?

Search on "S1J Diode" - as this is what they most likely are - though this is not guaranteed.

The pictures are not sufficiently high resolution or in focus to see the devices.

Regards,

Richard.
#5 21677682 25 Jul 2017 14:00

Phuong Tran Phuong Tran

Anonymous

Post #5
21677682 25 Jul 2017 14:00

The pads got pulled up with the components. One of the pads stuck to the other one.
#6 21677683 25 Jul 2017 14:38

Richard Shadbolt Richard Shadbolt

Anonymous

Post #6
21677683 25 Jul 2017 14:38

Hi,

If the components are in series with the LED - then they are most likely diodes.

As above - do the components have a bar at one end of the component - which indicates a diode.

If anything is going to fail - i expect it to be the LED, as the diodes if they are S1J have a current capability of 1amps.

So, identify the component. Replacements are easy to find.

If the track is lifted from the PCB, the you could make a circuit from prototype board and attach that to the original circuit.

Regards,

Richard.
#7 21677684 28 Jul 2017 09:55

Justin Spencer Mamaradlo Justin Spencer Mama...

Anonymous

Post #7
21677684 28 Jul 2017 09:55

Hello Phuong!
How are you?

By the way, I'd like to make a comment on the stuck pads.
Can you trying scratching the surface of the pad - to make a new 2 terminal connection.
The thing is, most PCBs are made up of layers that can be scratched off easily.
Then you can make your desired connections.
(You don't need to fabricate or order a new one - that'll be expensive especially
if it's custom made and you're not planning on mass production)

Happy exploring!

Regards,
Justin
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#8 21677685 28 Jul 2017 10:05

Justin Spencer Mamaradlo Justin Spencer Mama...

Anonymous

Post #8
21677685 28 Jul 2017 10:05

Oh, one more thing - you might want to check the caps too.
They are also prone to damage more often than you'd think.
Check if any of the tops are bloated. If they are, then they need replacement.

Alsooooo... are you using a temperature controlled soldering iron?
Those are SMTs and using a poor soldering iron can augur more misfortune than you'd expect. Unless you're really skilled in assembly, it is recommendable to get a temperature controlled one (even the cheap ones are still better in spite of the faster tip oxidation).

Regards,
Justin
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Topic summary

A 2007 Aston Martin DB9 tail light PCB controlling LEDs has suffered water damage causing short circuits and component failure. The damaged chip marked "S1J S63" is likely a diode, possibly an S1J diode, commonly used in series with LEDs for current protection up to 1A. The PCB pads were damaged and lifted during component removal, complicating repair. Recommendations include verifying component identity by checking for diode polarity markings (a bar at one end), testing components with a multimeter, and inspecting capacitors for damage such as bloating. Repair strategies involve careful soldering with a temperature-controlled iron, reconstructing damaged PCB tracks by scratching the pad surface to create new connections, or using prototype boards to bypass lifted tracks. Replacement components like diodes and capacitors are generally easy to source once identified. High-resolution images are needed for precise identification of components.
Summary generated by the language model.

Aston Martin DB9 Tail Light 2007 PCB: Identify S1J S63 Marked IC and Replacement Sources

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Topic summary