Marantz AV7701, Service Manual

Page: 10 / 266

10
Initializing AV SURROUND RECEIVER
AV SURROUND RECEIVER initialization should be performed when the μcom, peripheral parts of μcom, and Digital
PCB. were replaced.
1. Turn off the "ON/STANDBY (
X
)" button.
2. Press "ON/STANDBY (
X
)" button while simultaneously while pressing "MOVIE " and "MUSIC " buttons.
3. Check that the entire display is flashing at intervals of about 1 second, and then release the 2 buttons.
The microprocessor will be initialized.
Service Jig
When you repair the printing board, you can use the following JIG (Extension cable kit).
Please order it from marantz Official Service Distributor in your region if necessary.
8U-110084S : EXTENSION UNIT KIT : 2 Set
When you update the firmware by DFW, you can use the following JIG (RS232C to internal connector conversion adapter
with 4P FFC cable kit ).
Please order to marantz Official Service Distributor in your region if necessary.
8U-210100S : WRITING KIT : 1 Set
(Refer to 65 page.)
NOTE: • If step 3 fails, start over from step 1.
• All user settings will be lost and the factory setting will be recovered after the set is initialized.
So make sure to note down your setting beforehand for restoring after the initialization.
ON / STANDBY (
X
)
MOVIE
MUSIC
CAUTION IN SERVICING