Read Harman Kardon AVR 355 (serv.man3) Technical Bulletin online
harman/kardon, Incorporated
250 Crossways Park Dr. Woodbury, New York 11797
1
harman/kardon
Service Bulletin
Service bulletin # HK2008-003 October 2008
Warranty labor rate: MINOR repair
To: All harman/kardon Service Centers
Model: AVR254, AVR354, AVR255, AVR355
Subject: AVR upgrade
In the event you receive an AVR254, AVR354, AVR255, AVR355, this procedure should be followed for
every unit that needs to be serviced, for any reason.
every unit that needs to be serviced, for any reason.
Synopsis:
Change fuses F110, F111
Add a wire (jumper)
Download and install recent software version for selected models
Note: RoHS-rated* soldering equipment will be required.
Part 1:
Locate the Power Transformer PCB CUP12101-4 and unsolder and replace black encapsulated fuses F110,
F111 (2.5A/250V) with 3.15A/250V rating, hk part# KBA2D3150A2EYT. These can be replaced without
removing the power transformer and its two attached PCB’s (CUP121013/4). See image for location.
Part 2:
Install a new insulated jumper wire (#18 to 20 gauge) in the following location to make a new connection
between HDMI Board (CUP12035) connector # CN82, Pin #5 (nearest the corner of the board) to one end of
resistor R212, (nearest the fan), on the Regulator Board (CUP12055). See image for location.
harman/kardon, Incorporated
250 Crossways Park Dr. Woodbury, New York 11797
2
Model: AVR254, AVR354, AVR255, AVR355 Upgrade
Part 3
Download and install the latest software for exact model AVR from
www.harmankardon.com
following
all instructions on the web page. Version numbers are shown below.
New software version
Model
Model
MCU (microprosssor)
HDMI
DSP
AVR254
07-10-2008 03
v0.93.1.1
AVR355SF_08.28-01
AVR255
07-10-2008 03
v0.93.1.1
AVR355SF_08.28-01
AVR354
07-10-2008 03
v0.93.1.1
AVR355SF_08.28-01
AVR355
07-10-2008 03
v0.93.1.1
AVR355SF_08.28-01
Note when the current version of the software is checked, only the MCU (microprosssor) and HDMI version
numbers will be appear in the main display.
Checking current version of software:
o
With the AVR turned on, press the 1, 2, 3 and 4 buttons on the remote in that order; then press the OK button.
(If nothing happens, press the 1, 2, 3 and 0 buttons on the remote in that order; then press the OK button.)
o
After a short pause, the software version number will appear on the AVR's front-panel display.
o
If the version number is lower than the number listed above, (MCU microprosssor), the unit will need an upgrade.
o
If the display matchs the chart, no further action is required.
* RoHS = Restriction Of Hazardous Substances. Recommended lead-free solder 96.5/3.0/0.5
Product
SN range
AN0085-01001 to
AN0085-01001 to
AN0085-05500
Add Jumper HDMI pcb
AN0085-05501 to
AN0085-07900
Add Jumper HDMI pcb
AN0085-01001 to
AN0085-03400
Add Jumper HDMI pcb
AN0085-03401 to
AN0085-04400
Add Jumper HDMI pcb
AVR 255/230
AVR 355/230
Fuse 2.5A--->3.15A and
Fuse 2.5A--->3.15A and
Display