Dual Backup Memory - Marantz SR6004 Service Manual

8. DUAL BACKUP MEMORY

This product has a Dual Backup Memory function. The
conventional Backup functions to memorize, in the EEP-
ROM (IC89) in the circuit, a current setting of the moment the
main power is turned off so that it can be restored when it is
turned ON again. Meanwhile, the DUAL BACKUP MEMORY
is capable of memorizing any arbitrary setting that is
configured while the product is in operation so as to restore
it at any time.
When servicing units returned from end-users for repairs,
use this function to back up the current setting (e.g. Tuner
Preset). This will enable the units to be returned to the users
after repairs, with the setting unchanged.
NOTE : If end-users use this function, the data will be
overwritten.
• HOW TO OPERATE
-Backup-
1. Configure a setting you would like to save in the MEMO-
RY and hold down the [MEMORY] and [ENTER] buttons
on the Front Panel at the same time for 3 seconds or
more.
2. The FL Display indicates "MEMORY SAVING" while the
Backup is being performed.
3. The FL Display indicates "COMPLETE" when the Backup
is completed.
-Recovery-
1. Hold down the [MEMORY] and [MENU] buttons on the
Front Panel at the same time for 3 seconds or more. s
2. The FL Display indicates "MEMORY LOAD" while the
Recovery is being performed.
3. After the FL Display indicates "COMPLETE", the product
goes into Standby mode. When the power is restored, the
Recovery is completed. The FL Display indicates "NO
BACKUP" if the DUAL BACKUP MEMORY has not been
activated with no data to be recovered saved in the
Memory. This function does not back up the levels of
Main ZONE Volume, ZONE A Volume and ZONE A
Speaker Volume. When the Recovery is done, - ∞ is indi-
cated.
• SERVICE PRECAUTIONS
When the Flash Rom (IC89) on the INPUT PWB is replaced
or when the DSP CODE is rewritten for a version upgrade,
make sure, in order to maintain consistency with the Backup
Memory, to clear the DUAL BACKUP MEMORY in
thefollowing way :
-How to clear the Backup Memory--
1. Hold down the [MEMORY] and [CLEAR] buttons on the-
Front Panel at the same time for 3 seconds or more. s
2. The FL Display indicates "BACKUP CLEAR" while the
memory is being cleared.
3. After the FL Display indicates "COMPLETE", the opera-
tion is completed.
本機は Dual Backup Memory 機能を持っています｡
通常の Backup は製品の主電源が切られた時に､その時の状態
を回路上の EEP-Rom (IC89) に Memory して､電源が ON
された時にその状態を復帰させますが､ DUAL BACKUP
MEMORY 機能は､動作状態にある任意の状態を Memory し
て､いつでもその状態を復帰させることが出来る機能です｡
この機能を使って End User から修理依頼を受けた時の状態
を Back Up させておけば､修理後に確認の操作をしても、
User が使用していたときの状態 (Tuner の Preset 等 ) を復
帰させて返却することもできます｡
ご注意 : End User がこの機能を使用していた場合はその
Data は上書きされてしまうので注意が必要です｡
･ 操作方法
-Backup 操作 -
1. 製品を Memory したい状態にして､ Front Panel 上の
[MEMORY] と [ENTER] ボタンを同時に 3 秒以上押し続
けます｡
2. FL Display に "MEMORY SAVING" と表示され Backup
処理が行われます｡
3. FL Display に "COMPLETE" と表示されれば処理は完了
です｡
-Recovery 操作 -
1. Front Panel 上の [MEMORY] と [MENU] ボタンを同時
に 3 秒以上押し続けます｡
2. FL Display に "MEMORY LOAD" と表示され Recovery
処理が行われます｡
3. FL Display に "COMPLETE" と表示され製品は一度
Standby 状態となり復帰後 Recovery 処理が完了します｡
この時、DUAL BACK UP MEMORY 操作がされてなく、
Recovery する Data が Memory されていない場合は FL
Display に "NO BACKUP" と表示されます｡
また､Main ZONE Volume , ZONE A Volume ,ZONE A
Speaker Volume の各 Volume 値についてはこの機能で
は Backup されずに - ∞で Recovery されます｡
･ Service 時の注意点
INPUT PWB 上の Flash Rom (IC89) を交換した場合また
は、DSPCODE を Version Up 等の理由から書き換えた場合
は､BackupMemoryとの整合性の為に必ず次の方法でDUAL
BACKUPMEMORY の消去を行います｡
-Backup Memory の Clear 操作 -
1. Front Panel 上の [MEMORY] と [CLEAR] ボタンを同時
に 3 秒以上押し続けます｡
2. FL Display に "BACKUP CLEAR" と表示され Clear 処
理が行われます｡
3. L Display に "COMPLETE" と表示されれば処理は完了で
す｡
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