Denon AVR-2308CI, AVR-888 Service Bulletin

100 Corporate Drive Mahwah, NJ 07430

Service Bulletin

No. : OST-C1400-1
Date: October 15, 2008

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Model: AVR-2308CI, AVR-888

Subject: Malfunction of CEC control.

Countermeasure is applicable only upon claim from the customer.

Symptom: CEC function (HDMI control) doesn't operate correctly when the

power supply of the A/V amplifier is turned off when TV for CEC function and
Player are connected with A/V amplifier.

Case 1:

1) Condition: TV and Player for CEC function (HDMI control) are used.

2) Setting: ① The state of the power supply of the A/V amplifier is in the following
state either. ② When you turn off the power supply of the A/V amplifier with
Power SW ③ When the setting of CEC function (HDMI control) makes the power

supply of the A/V amplifier a standby by turning off.

3) Operation: When you operate Player from TV in CEC (HDMI control).

______________________________________________________________________________________

CONFIDENTIALITY NOTICE:

The information contained in this document is intended for the exclusive use by DENON Authorized Service Centers and their
employees. This document may contain information that is privileged, confidential and may be protected from disclosure under
applicable laws and terms of the DENON Service Agreement. Any distribution, disclosure, dissemination or copying of this
document and the information it contains is prohibited. No responsibility will be accepted by DENON for any damage, injury or loss
resulting from the misuse of the information contained in this document.

Case 2:

1) Setting: TV and Player2 for CEC function (HDMI control) are used.

2) Operation: ① The state of the power supply of the A/V amplifier is in the
following state either. ② When you turn off the power supply of the A/V amplifier
with Power SW. ③ When the setting of CEC function (HDMI control) makes the
power supply of the A/V amplifier a standby by turning off.

3) Operation: When you operate Player2 from TV in CEC (HDMI control).

4. CAUSE: When the power supply of the A/V amplifier is turned off, the HDMI in
A/V amplifier circuit might obstruct the control of CEC function (HDMI control).

Solution:

MODIFICATION: Please replace and delete the following parts on "1U-3852

DIGITAL. P.W.B. UNIT".

1) Replace the Resistor "100 k ohms" with "10k ohms" for "RR977"

2) Delete the Capacitor "CC976 (330pF)".

______________________________________________________________________________________

CONFIDENTIALITY NOTICE:

The information contained in this document is intended for the exclusive use by DENON Authorized Service Centers and their
employees. This document may contain information that is privileged, confidential and may be protected from disclosure under
applicable laws and terms of the DENON Service Agreement. Any distribution, disclosure, dissemination or copying of this
document and the information it contains is prohibited. No responsibility will be accepted by DENON for any damage, injury or loss
resulting from the misuse of the information contained in this document.