Selling CS8414 to CS8412 converter board

spencer · 14th March 2007, 02:20 AM

I have made about hundred something pcs CS8414 to CS8412 converter board in my NP D1 clone project and these are excess stock to get rid of. Total 100 pcs.

Price is US$1 per pcb and shipping is $1 for every 10 pcs in an envolope by airmail. Registered mail add $2.

The bottom of pcb has designed two SMD pads for soldering a SMD ceramic capacitor to improve the supply decoupling.

See photos.

Spencer

spencer · 14th March 2007, 02:21 AM

Bottom view

spencer · 15th March 2007, 05:49 AM

For those who has purchased the converter board, here is my soldering experience on this board:

1. Use 3M single side sticky tape to cover the DIP holes on both sides. This is to prevent filling the holes when soldering the 8414.
2. Tape the board on a flat surface, wooden table or platform.
3. Put the SOIC and align the pins.
4. Solder pin1 and 15.
5. Apply more solder to the other pins. Can short all pins but make sure the pins are solder on the board.
6. Suck away the excess solder using the soldering iron. You may need to apply new solder when needed and suck again.
7. Check for short ckt of adjacent pins.
8. Solder the smd chip capacitors on the bottom side.
9. Hold the chip cap in position, dip a little solder to the iron and put on one side to ensure chip is fixed on the pad.
10. Solder the other end of chip cap.
11. Touch up the first pad again.
12. Solder the lead pins to finish all.

spencer · 21st March 2007, 03:33 PM

Still available! $1 each is real cheap.

carawu · 21st March 2007, 11:39 PM

Hi,

I´ve paid @ 12.3.2007..... the goods arrived a couple of days later... I just want to share my good experience with Spencer here.

Regards,

Carsten

spencer · 25th March 2007, 01:36 PM

Thanks Carsten.

Still available!

spencer · 30th March 2007, 01:16 PM

Michael and Dominique,

Your parts has shipped today.

Spencer

spencer · 9th April 2007, 06:16 AM

Left around 50 pcs.

spencer · 1st May 2007, 07:08 AM

Still available!

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15th March 2007, 05:49 AM	#3
spencer diyAudio Member Join Date: Jun 2004 Location: Hong Kong	For those who has purchased the converter board, here is my soldering experience on this board: 1. Use 3M single side sticky tape to cover the DIP holes on both sides. This is to prevent filling the holes when soldering the 8414. 2. Tape the board on a flat surface, wooden table or platform. 3. Put the SOIC and align the pins. 4. Solder pin1 and 15. 5. Apply more solder to the other pins. Can short all pins but make sure the pins are solder on the board. 6. Suck away the excess solder using the soldering iron. You may need to apply new solder when needed and suck again. 7. Check for short ckt of adjacent pins. 8. Solder the smd chip capacitors on the bottom side. 9. Hold the chip cap in position, dip a little solder to the iron and put on one side to ensure chip is fixed on the pad. 10. Solder the other end of chip cap. 11. Touch up the first pad again. 12. Solder the lead pins to finish all.

21st March 2007, 03:33 PM	#4
spencer diyAudio Member Join Date: Jun 2004 Location: Hong Kong	Still available! $1 each is real cheap.

21st March 2007, 11:39 PM	#5
carawu diyAudio Member Join Date: Jul 2003	Hi, I´ve paid @ 12.3.2007..... the goods arrived a couple of days later... I just want to share my good experience with Spencer here. Regards, Carsten

25th March 2007, 01:36 PM	#6
spencer diyAudio Member Join Date: Jun 2004 Location: Hong Kong	Thanks Carsten. Still available!

30th March 2007, 01:16 PM	#7
spencer diyAudio Member Join Date: Jun 2004 Location: Hong Kong	Michael and Dominique, Your parts has shipped today. Spencer

9th April 2007, 06:16 AM	#8
spencer diyAudio Member Join Date: Jun 2004 Location: Hong Kong	Left around 50 pcs.

1st May 2007, 07:08 AM	#9
spencer diyAudio Member Join Date: Jun 2004 Location: Hong Kong	Still available!

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