Harman Kardon AVR 340 Manuale di riferimento

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harman/kardon, Incorporated 250 Crossways Park Dr. Woodbury, New York 11797

1

harman/kardon Service Bulletin

Service bulletin # HK2007-01 Rev1 May 2007 Warranty labor rate: MINOR repair

To: All harman/kardon Service Centers

Model: AVR340

Subject: Loss of Component Video Signal

In the event you receive an AVR340 with the following complaint: “there is an intermittent loss of video

signal in the Component Video mode”, perform the following procedure:

Synopsis: Add two 100K ohm resistors to the Base/Collector connection of Q604 & Q605.

1) Remove the top cover.

2) Remove the following PCB’s, and all their attached connectors, from the rear panel: Video PCB, Input

PCB, DMP PCB, Digital Input PCB.

3) Rear panel must be loosened. Remove the (6) plated screws on bottom chassis, remove the

Component PCB screws; remove the (4) speaker terminal screws, remove the two fan screws, remove

the single screw next to the “Comp2 Pr” jack.

4) Pull the rear panel away from the chassis and remove the Component Video PCB, and unplug all

attached connectors.

5) On the solder side of the PCB, add two 1/4W or 1/5W 100K ohm resistors to the indicated area in the

image (h/k part# 11014104J52). Note insulators and adhesive are used for reliability.

6) Replace the Component PCB, the rear panel with all screws, and all PCB’s in reverse order. Replace

the top cover.

7) Test the unit.

harman/kardon, Incorporated 250 Crossways Park Dr. Woodbury, New York 11797

2

Models Serial number (120V) Serial number (230V) Status Action

AVR340 AN0033-01001

to

AN0033-13000 No modification needed for

this complaint Check hk Bulletin HK2006-02

for additional modification

AVR340 AN0033-13001

To

AN0033-14600 May need modification for

loss of video signal Add two 100K ohm resistors to

Q604 & Q605

AVR340 AN0033-14601

And above Modified By Factory NONE REQUIRED

AVR340 AN0036-01001

To

AN0036-05401

No modification needed for

this complaint Check hk Bulletin HK2006-02

for additional modification

AVR340 AN0036-05401

To

AN0036-05500

May need modification for

loss of video signal Add two 100K ohm resistors to

Q604 & Q605

AVR340 AN0036-05502

And above Modified By Factory NONE REQUIRED

In addition, the following units in these serial number ranges have already been modified:

AVR340 (120V) AN0033-13802 to AN0033~13860, Single unit AN0033-13885, and AN0033-14301 to AN0033-14600

AVR340 (230V) Single unit AN0036-05501