Service Mode - Marantz MM8003 Service Manual

3. SERVICE MODE

CPU version check
1. Connect the mains cord into the unit
POWER ON/OFF button for turn on the unit.
2. Press the
Service Key (SW42) on CPU PWB. (Refer to
3. Press the
4. FACTORY MODE).
4. The firmware version is displayed on the front LED.
5. V1 (D407) / V2 (D406) / V3 (D405) of the CPU Version
Indication LED turns on as follows.
RESETTING THE AMPLIFIER
This amplifier features a microcontroller.
1. Set the amplifier to standby or turn its power on.
2. Use the tip of a needle or other sharp-pointed object to
press the reset switch in the hole indicated by the arrow
for at least 1 second.
Related
Remedy
page
7
5, 6
4
When the amplifier power is already on, the amplifier is
first set to standby mode, after which the microcontroller is
initialized, and the power is turned back on.
2
When the microcontroller is reset with the amplifier in
standby mode, it is initialized, then the power is turned back
on.
6
–
6
14
Version V1(D407) V2(D406) V3(D405)
Ver 1
Ver 2
Ver 3
Ver 4
Ver 5
Ver 6
Ver 7
RESETTING THE AMPLIFIER
This amplifi er features a microcontroller.
The microcontroller can be reset by following the steps below.
IN OUT IN
ONTROL REMOTE CONTROL
1.
Set the amplifi er to standby or turn its power on.
2.
Use the tip of a needle or other sharp-pointed object to press the reset switch in the hole indicated by the
arrow for at least 1 second.
3.
When the amplifi er power is already on, the amplifi er is fi rst set to standby mode, after which the
microcontroller is initialized, and the power is turned back on.
When the microcontroller is reset with the amplifi er in standby mode, it is initialized, then the power is
turned back on.
3. SERVICE MODE
のバージョン表示を行います。
CPU
本機に電源コードを接続します。
1.
2. POWER ON/OFF
の
3. CPU PWB Service Key (SW42)
（場所は
4. FACTORY MODE
4. CPU Version Indication LED
が下記のように点灯します。
V3(D405)
ON
OFF OFF
ON
OFF OFF
ON ON
OFF
ON
OFF OFF
ON ON
OFF
ON ON
OFF
ON ON ON
初期状態に戻すには（リセット）
電源が入っていることを確認します。
1.
下図のように、穴にクリップなどを差し込みリセットスイッ
2.
チを 秒以上押します。
1
本機は一度スタンバイ状態になった後、再度
状態となり、各種設定された内容が初期化され、工場出荷時の
状態に戻ります。
3
ボタンを押し、本機の電源を入れます。
ボタンを押します。
を参照）
の
V1(D407)/V2(D406)/
ENGLISH
POWER
−
ON