Re: Need Sony Service bulletin for changes to bd board
- From: "kna_cecil" <kcecil@xxxxxxxxxxx>
- Date: 30 Apr 2005 17:07:08 -0700
Any chance someone could email the bulletin to me including the
illustrations?
Thanks for the reply.
send to
k c e c i l @ h o t m a i l . c o m (w/o spaces)
uplf...@xxxxxxxxx wrote:
> Model: KP-53XBR300, KP-53HS10
> KP-61HS10, KP-61XBR300
> Subject: AKB Error When First Turned ON Date: August 1, 2001
> Symptom:
> (2311) When the unit is first turned on from cold start the LED
flashes
> 5 times at first power-
> ON, and no picture is received. If turned OFF and then ON again
picture
> is present.
> Unit will play the rest of the day without any problem.
> Solution: If the customer should complain of the symptom above please
> perform the following
> circuit changes to the BD Board.
> Note 1: Some BD boards had countermeasures applied at the factory.
> These
> boards do not need to be reworked in the field. See illustrations 1
> through 3 for
> identifying the boards that have had countermeasures applied at the
> factory.
>
> Illustration 1
> Carefully peel up the coper tape
> on the side edge of the board.
> Illustration 2
> Lift up the shield from the board, using the
> long copper tape as a hinge.
> Illustration 3
> Factory-reworked boards have a 10K chip
> resistor mounted near R1924; no further
> rework is necessary.
> TV Products Service Bulletin No. 484R2
> Note 2: The specific procedure depends on whether or not the original
> service
> bulletin had been performed previously.
> · If R1709 and R1713 are both mounted on the board and are 470 ohms,
> the
> original bulletin was not performed previously.
> · If only R1713 is mounted and is 100 ohms, and R1709 is not
mounted,
> the
> original bulletin was performed previously.
> · New BD boards received from WRPC-AS must also be checked to see if
> the
> original bulletin was performed previously.
> Procedure for BD boards that have not had the original bulletin
> performed.
> 1- Change R1709 and R1713 from 470 ohm to 1K ohm.
> 2- Remove Q1701.
> 3- Add a 10K resistor to the A-side of the BD board near C1741 as
shown
> in the
> illustration.
> 4- Check the solder joints of all pins on IC1718 and touch up if
> necessary.
> REF FORMER NEW
> DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER
> R1709
> R1713
> RESISTOR, 470
> OHM (CHIP)
> 1-216-041-00 RESISTOR,
> 1K OHM (CHIP)
> 1-216-049-11
> Q1701 TRANSISTOR,
> DTC144EKA
> 1-801-806-11 REMOVE -
> - - - RESISTOR,
> 10K, 1/4 W
> 1-247-855-11
> Procedure for BD boards that have had the original bulletin
performed.
> 1- Install a 1K ohm resistor to mounting position R1709.
> 2- Change R1713 from 100 ohm to 1 K ohm.
> 3- Add a 10K resistor to the A-side of the BD board near C1741 as
shown
> in the
> illustration.
> 4- Check the solder joints of all pins on IC1718 and touch up if
> necessary.
> REF FORMER NEW
> DESCRIPTION PART NUMBER DESCRIPTION PART NUMBER
> R1709 NOT MOUNTED - RESISTOR,
> 1K OHM (CHIP)
> 1-216-049-11
> R1713 RESISTOR, 100
> OHM (CHIP)
> 1-216-025-00 RESISTOR,
> 1K OHM (CHIP)
> 1-216-049-11
> Q1701 TRANSISTOR,
> DTC144EKA
> 1-801-806-11 REMOVE -
> - - - RESISTOR,
> 10K, 1/4 W
> 1-247-855-11
> TV Products Service Bulletin No. 484R2
> .
> R1709 R1713
> Q1701
> IC1718
> Add 10 K resistor,
> part number 1-247-855-11.
> C1741
.
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