Adjustment; Audio Section; Idling Current - Denon AVR-1707 Service Manual

ADJUSTMENT

Audio Section

Idling Current

Required measurement equipment: DC Voltmeter
1. Preparation
(1) Avoid direct blow from an air conditioner or an electric
fan, and adjust the unit at normal room temperature 15 °C
~ 30 °C (59 °F ~ 86 °F).
(2) Presetting
• POWER (Power source switch)
• SPEAKER (Speaker terminal)
(Do not connect speaker, dummy resistor, etc.)
2. Adjustment
(1) Remove top cover and set VR101, VR102, VR103,
VR104, VR105, on Amp. Unit, VR107SBL,107SBR on
SURR.-BACK ch Amp. Unit at fully counterclockwise
( ) position.
(2) Connect DC Voltmeter to test points (FRONT-Lch:
TP104, FRONT-Rch: TP105, CENTER ch: TP103, SUR-
ROUND-Lch: TP101, SURROUND-Rch: TP102, SUR-
ROUND-BACK Lch: TP106, SURROUND-BACK Rch:
TP107).
(3) Connect power cord to AC Line, and turn power switch
"ON".
(4) Presetting.
MASTER VOLUME : "---" counterclockwise (
MODE : 7CH STEREO
FUNCTION : CD
(5) Within 2 minutes after the power on, turn VR101 clock-
wise ( ) to adjust the TEST POINT voltage to 1.5 mV
± 0.5 mV DC.
(6) After 10 minutes from the preset above, turn VR101 to
set the voltage to 2.0 mV ± 0.5 mV DC.
(7) Adjust the Variable Resistors of other channels in the
same way.
DC Voltmeter
OFF
No load
min.)
F Lch
S Lch
S Back Rch
C ch
S Back Lch
S Rch
F Rch
5
AVR-1707/1507/687/587/487
VR104
TP104
VR101
TP101
TP107
VR107
VR103,TP103
TP106
VR106
VR102,TP102
VR105
TP105