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Harman Kardon AVR 340 Reference manual

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8

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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