Adjustment - Denon AVR-X1200W Service Manual

ADJUSTMENT

Adjusting Idling Current
1. Preparation
(1) Prepare a DC voltmeter.
(2) Place the unit under normal usage conditions, away from highly ventilated areas such as next to an air conditioning
machine or electric fan.
The set requires an ambient temperature of 15℃ to 30℃ and standard humidity.。
(3) Settings of This Unit
• POWER (Power source switch)
• SPEAKER (Speaker terminal) No load
(Do not connect equipment such as speakers or dummy resistors.)
2. Adjustment Procedure
(1) Remove the top cover and turn VR550, VR540, VR530, VR520, VR510, VR570, VR560 of the AMP PCB counterclock-
wise( c ) as far as possible.
(2) Connect the DC Voltmeter to the test points.
FRONT-Lch
FRONT-Rch
CENTER ch
SURROUND-Lch
SURROUND-Rch
SURROUND-BACK Lch
SURROUND-BACK Rch
(3) Connect the power cord to an outlet. Next, press the power button to turn on the power.
(4) Set this unit as follows.
MASTER VOLUME
SPEAKER (Speaker terminal)
(Do not connect equipment such as speakers or dummy resistors.)
MODE
FUNCTION
(5) Turn VR550 clockwise ( x ) and adjust the voltage of the test point to "1.5mV ± 0.5mV DC" within 2 minutes.
(6) 10 minutes after the preliminary adjustment, turn VR550 and set the voltage to "2.0mV ± 0.5mV DC".
(7) Adjust the variable resistance of each channel using the same method.
DC Voltmeter
VR550
CN550
F Rch
： CN510
： CN550
： CN530
： CN520
： CN540
： CN560
： CN570
: "---" ( c min.) : turn counterclockwise to the lowest position.
: No load
: MCH STEREO
: DVD
AMP UNIT
VR540 VR530 VR520
CN540 CN530 CN520
S Rch C Rch S Lch
STANDBY
VR510 VR570
CN510 CN570
F Lch S Back Rch
70
VR560
CN560
S Back Lch