Caution In Servicing; Initializing Av Surround Receiver; Service Jig - Marantz NR1604 Service Manual

CAUTION IN SERVICING

Initializing AV Surround Receiver

AV Surround Receiver initialization should be performed when the μcom, peripheral parts of μcom, and Digital P.W.B. were
replaced.
1. Turn off the power pressing "ON/STANDBY ( X )" button.
2. Press "ON/STANDBY ( X )" button while simultaneously while pressing "INTERNET RADIO" and "ZONE2 SOURCE"
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.
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.

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
8U-110136S : EXTENSION UNIT KIT
(Refer to 54 page.)
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 it from Marantz Official Service Distributor in your region if necessary.
8U-210100S : WRITING KIT
(Refer to 56 page.)
X ON/STANDBY
INTERNET RADIO
ZONE2 SOURCE
: 1 Set
: 1 Set
: 1 Set
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