TASCAM U9 PDI1394P23B FIREWIRE CHIP

Updated 25 November 2024

I have a good supply of the U9 firewire chip; PDI1394P23BD.
(Probably a "lifetime" supply, if I run out I will update this page accordingly)

These are NOS Phillips chips, the same exact chip that is on the board.

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Below is Service Bulletin #0340, that is the chip in the photo; they are quite small.

It has been reported on the forum, that R52, 55, 60 & 63 also fail when the firewire cable is inserted upside down.
There are 2 of the 56 ohm resistors right below the lettering, U9, on the bulletin; they are very small.

Below is a photo of the U9 section on my FE-8. Its very similar to the 1884.

PRICING:
U9 chip and 6 (you'll need 4) 56 ohm resistors is $20.00
Your order will ship via US Postal Priority Mail.
Postage rates:
USA       $ 10.40 + sales tax rate in your state
Canada  $ 32.50
Other     $ 50.00

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all major credit cards accepted

I have plenty of U9 chips in stock as of: 25 November 2024

DISCLAIMER!

I have not yet done this repair myself, both my 1884's are in fine working order.
I can NOT confirm that R52, 55, 60 & 63 are the resistors that will need replacing.
You'll have to check when doing the repair.

I CAN confirm that this is not a repair for the faint of heart!
It requires advanced soldering skills!

Let me know if you need any further information.

updated: 25 Nov 2024 11:24