P6004B
P6003B
P6002B
P6001B
P6301
TH2
TH1
COM
L
R
C
SL
SR
ID-
ID+
P6080
R6040
ID-
ID+
P6081
R6041
BIAS
ID-
ID+
P6082
R6042
BIAS
ID-
ID+
P6083
R6043
BIAS
ID-
ID+
P6084
R6044
BIAS
NAAF-8391
SBR
SBL
ID-
ID+
P6085
R6045
BIAS
ID-
ID+
P6086
R6046
BIAS
BIAS
NAAF-8397
P6000B
DTR-6.5
ADJUSTMENT AND CONFIRMATION PROCEDURES
1.Idling current adjustment
Before Idling adjustment, turn the trimming resistors R6040 to R6045 counter-clockwise fully.
Connect the DC voltmeter to sockets P6080 to P6086.
After turn POWER to ON, adjust the trimming resistors R6040, R6041 and R6042 so that the reading of
voltmeter becomes 1.25mV. (Front and center channels)
Adjust the trimming resistors R6043, R6044,R6045 and R6046 so that the reading of
After adjustment, attach the top cover.
voltmeter becomes 0.75 mV. (Surround and surround back channels)
Confirm the voltage of points above after about five minutes.
Front and center channels
When less than 5.0 mV, readjust the resistors above so that the voltage becomes 5.0 mV.
When 5.0 mV to 6.0 mV, it is not necessary to adjust.
When more than 6.0 mV, readjust the resistors above so that the voltage becomes 6.0 mV.
Surround and surround back channels
When less than 3.5 mV, readjust the resistors above so that the voltage becomes 3.5 mV.
When 3.5 mV to 4.5 mV, it is not necessary to adjust.
When more than 4.5 mV, readjust the resistors above so that the voltage becomes 4.5 mV.
Note: No load and No signal
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