RG5DC manufacturing defect?

[dnaserver]

hello friends,

Just need clarification, I was informed by my friends mentioning that there is manufacturing defect on PU5DC and RG5DC power card, and erricsson sent a circular informing users to replace and resent back to Ericsson witout any extra charges. Any body can confirm me on that . Thanks, really appreciate that.

 

[mundus]

Hi' no it's PU4DC that can have a fault.

 

[HIREI]

Service Advise:

We have been experiencing problems with the PU4DC
boards. The problem is related to a capacitor,
which begins leaking after being in operation for
a period of time. When this happens, in most cases
only the PU4DC board fails but in some cases
adjacent circuit boards have been affected or the
entire magazine may be damaged.

As we regard this as a premature wear out of the
component on the PU4DC board, Ericsson Enterprise
have decided to extend the offer of the swap
replacement program so that all affected units in
the field can be replaced.

The replacement program is prolonged and ends
2005-12-31.

Identification of Affected Boards
Our analysis of the scope of the problem, working
together with the vendor of the component, shows
that defective components are installed on boards
produced during the period 1994 through 1996.
However, we cannot rule out the possibility that
defective components are also installed on some
boards outside the period. We therefore decided to
recommend replacement of all PU4DC power supplies
not yet changed or verified to be ok. Boards
marked R-state with /A or /B are OK and should not
be replaced (i.e. R3B needs to be replaced, R4A/A
is OK)

There will be three replacement units: PU5DC,
RG5DC and factory reconditioned PU4DC, as
explained in the documents below.

Attached to this Service Advice is document:
- Replacement of PU4DC under Operation - 1553 -
ROA 219 5038, Rev B

The replacement program will be handled with
buffer batches, the buffer batches may contain any
of the three variants of units PU4DC, PU5DC or
RG5DC.

It is important to be aware that it is critical to
the replacement program that the complete batch is
sent back to Ericsson Enterprise without delay.

The replacement program units shipped will be
tracked to ensure that Enterprise Service
Logistics receive a corresponding number of old
units in return. Any outstanding units when the
program concludes 31 December 2005 will be
charged.

Each batch has to be returned in equal number of
units to Ericsson Sweden within 56 calendar days
before the next batch can be dispatched from
Ericsson. If a Service Partner (SP) fails to do
this, Ericsson will invoice the ordinary price for
such a batch.

Swap details
The old PU4DC (ROF 1375320/1) will be replaced
with one of the three alternatives, a
repaired/updated PU4DC (ROF 1375320/1) or PU5DC
(ROF 1375320/1) or RG5DC (ROF 1375350/2). The swap
alternatives are handled by the logistics at
Ericsson depending on what is available in the
buffer stock at Ericsson Enterprise Sweden and at
the time of each individual delivery.

Packing
Before being dispatched to Ericsson all units that
are subject for replacement must be properly
protected against Electro-static Discharge (ESD).
Enclosing them in a non-conducting plastic bag
does this. Units must also be individually packed
in foam or other material to protect them against
damage in transit.

A simple way is to use the same packing material,
which is used in the buffer batch that SP will be
receiving in advance.

Shipping Specification
A Shipping Specification containing the following
information must accompany each shipment of boards
to the factory:

•Service Partner name
•Number of boards in shipment •Product number
including Index and Production Week for each
board.

The technical part of the replacement process of
the PU4DC is described in the work instructions
1553-ROA 2195038 Uen. This process depends on
certain HW (Adapter ROA 2195038/1) to be able to
do the change without power stop. The HW will be
supplied with the first batch including two pieces
of the adapter ROA 2195038/1 free of charge.

A large enough buffer store of replacement units
is now in place at the factory and the program
should be initiated as quickly as possible. As of
today no specific markets are prioritized and the
plan to upgrade should be based on the knowledge
of your customers installed base. Critical
customers with high demands on availability should
be prioritized. Ericsson Enterprise recommend you
to pay special attention to equipment delivered
during the period of 1994 - 1996 as this period
counts for the vast majority of hazardous boards.

The recommendations given in this Service Advice
are also applicable to other systems based upon
the MD110 HW platform.

If a customer inquires as to the reason for the
replacement, please feel free to explain to them
nature of the problem as described above.

 

[dnaserver]

Thaks for the very useful info guys... very very aprrecaited that ...