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PRODUCT Super Hybrid Digital PBX
MODEL KXTDA0172
SUBJECT Card inoperative
DATE April 24th, 2006
NUMBER PBX2006-02


TECHNICAL BULLETIN

Situation:

In July 15th., 2005, Panasonic Canada Inc. (PCI) offered an advance replacement program on the KXTDA0172 card to address the protector IP801 failure. Please refer to technical bulletin number PBX2005-08.
To-date, there is no recurring failure on the protector IP801 after replacing the protector with the 1.25A type rating. However, there have been situations where protector IP802 has failed.

Possible cause:

After analysis of the problem, it is determined that under heavy load and at certain temperature condition, there is not enough margin for IP802 (0.75A) resulting in IP802 failure.

Solution:

In consideration of the margin guarantee and circuit protection, the protector (IP802) of 1.25A type is used to replace the original one (rating 0.75A).

Inventory units:

As a preventive measure PCI has upgraded all KXTDA0172 in its inventory. As of March 17th., 2006 all KXTDA0172 cards are shipped with the new protector IP802. The upgraded card with serial number lower than 6DxxGxxxxx has 2 red dots (one dot on each side of the serial number) on the carton box and on the card. All cards with serial numbers 6DxxGxxxxx onwards are upgraded at the factory.

Repaired units:

All KXTDA0172 cards (with serial number lower than 6DxxGxxxxx) repaired at the service centre with IP801 and IP802 upgraded are marked with 2 red dots (one dot on each side of the serial number).

Field units:

Although the anticipated failure on the IP802 is significantly less than the failure on the IP801 there are some installations, which may have the conditions for both the IP801 and IP802 to fail. Being proactive, PCI is requesting that all KXTDA0172 cards at the dealer inventory and at the customer sites be replaced. To assist the dealers in effecting the replacements, PCI is offering the following program:

- Floating stock of KXTDA0172 cards free of charge to each dealer who has purchased such card. The cards are to be used strictly for this replacement program. The quantity of cards to be supplied will be around 10% of the quantity of cards purchased by the dealer until March 16th., 2006 with a minimum quantity of 1 or 2 cards as applicable.
- Reimbursement of $75 to the dealer for each customer site to cover travel cost and technician time in replacing all affected cards at the site. There is no reimbursement for dealer inventory units.
- The affected cards returned by the dealer are upgraded and returned to the dealer for the next replacement in the field.
- Dealers have 6 months from the date of receipt of the floating stock to claim for the $75 reimbursement.
- The warranty on all KXTDA0172 cards purchased over a year ago will be extended to March 31st., 2007. This warranty extension is applicable to cards with the original IP801 (rating 0.75A) and/or IP802 (rating 0.75A). Failures not related to the original IP801 (rating 0.75A) and/or IP802 (rating 0.75A) are not covered under this warranty extension.
- As a reminder, the deadline for the $75 reimbursement is six months from the date the dealer receives the floating units. The deadline for the replacement program is March 31st., 2007.