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ADJUSTMENT AND CONFIRMATION PROCEDURES 1
Idling current adjustment
Remove Top cover and Side panels.
Before Idling adjustment, turn the trimming resistors R6040 to R6046 counter-clockwise fully.
Connect the DC voltmeter to sockets P6070 to P6076.
After turn POWER to ON, adjust the trimming resistors R6040 to R6046 so that the reading of
voltmeter becomes 1.0 mV.
After adjustment, attach the top cover. After about 5 minutes, check the voltage at points above.
When less than 3.0 mV, readjust the resistors above so that the voltage becomes 3.0 mV.
When 3.0 mV to 5.0 mV, it is not necessary to adjust.
When more than 5.0 mV, readjust the resistors above so that the voltage becomes 5.0 mV.
U13
U133
NAAF-8173
NAAF-8175
P6076
ID+
ID-
SBR ch.
R6046
P6074
ID+
ID-
SR ch.
R6044
Confirmation of protection circuit
1. Confirmation of speaker relay
Confirm that the speaker relays turn ON approximately 5 seconds after the power switch is turned ON.
Confirm that the speaker relays turn OFF immediately after the power switch is turned OFF.
2. How to enter Test Mode
1. To enter a test mode (Test 1 to 5), when the unit is turned on,
hold down "CD" button and then press "DISPLAY"+"STANDBY/ON" buttons.
2. Press the respective designated buttons and make sure that your target mode starts.
Button
Mode
to be pressed
Test-1
"VIDEO 1"
Test-2
"VIDEO 2"
Test-3
"VIDEO 3"
Test-4
"VIDEO 4"
Test-5
"VIDEO 5"
R6042
C ch.
P6072
ID-
ID+
R6041
R ch.
P6071
ID-
ID+
FRONT PANEL
Message to be shown
on the Front display
"Test-1-00"
"Test-2-00"
"Test-3-00"
"Test-4-00"
"Test-5-00"
U132
U122
NAAF-8174
NAAF-8169
P6401
TH1L
+24V
TH1R
TH2R
+24V
TH2L
P6402
P6070
ID+
ID-
L ch.
R6040
TX-NR1000
R6045
SL ch.
P6075
ID-
ID+
R6043
SBL ch.
P6073
ID-
ID+
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