Denon AVR-4802 Service Manual page 12

ADJUSTMENT
Audio Section
Idling Current (1U-3356-1, 2)
Required measurement equipment : DC Voltmeter
Preparation
(1) Avoid direct blow from an air conditioner or an electric fan, and adjust the unit at normal room tempereture 15 °C ~ 30 °C
(59 °F ~ 86 °F).
(2) Presetting
POWER (Power source switch)
SPEAKER (Speaker terminal)
Adjustment
(1) Remove top cover and set VR101, VR301, VR401 on 1U-3356-1 (Power Amp L unit), VR102, VR202, VR302, VR402 on
1U-3356-2 (Power Amp. R Unit) at fully counterclockwise (
(2) Connect DC Voltmeter to test points (FRONT-Lch: TP101, FRONT-Rch: TP102, CENTER ch: TP202, SURROUND-Lch:
TP301, SURROUND-Rch: TP302, SURROUND BACK-Lch: TP401, SURROUND BACK-Rch: TP402).
(3) Connect power cord to AC Line, and turn power switch "ON".
(4) Presetting. MASTER VOLUME : "---" counterclockwise (
MODE
FUNCTION
(5) Within 2 minutes after the power on, turn VR101 clockwise (
(6) After 10 minutes from the preset above, turn VR101 to set the voltage to 2 mV ±0.5 mV DC.
(7) Adjust the Variable Resistors of other channels in the same way.
DC Voltmeter
→ OFF
→ No load (Do not connect speaker, dummy resistor, etc.)
) position.
: 5CH/7CH STEREO
: CD
) to adjust the TEST POINT voltage to 2 mV ±0.5 mV DC.
1U-3356-1
TP101
VR101
TP301
VR301
Power Trans
TP401
VR401
AVR-4802/AVC-A11SR
min.)
1U-3356-2
TP102
VR102
TP202
VR202
TP302
VR302
TP402
VR402
12