Adjustment; Audio Section; Idling Current - Denon AVR-2310 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 FL, FR, C, SL, SR, on Main Amp. Unit, VR401, VR402 on 2ch- Amp.
Unit at fully counterclockwise (c) position.
(2) Connect DC Voltmeter to test points (FRONT-Lch: TP101, FRONT-Rch: TP105, CENTER ch: TP103, SURROUND-
Lch: TP102, SURROUND-Rch: TP104, 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 (c min.)
SPEAKER (Speaker terminal)
(Do not connect speaker, dummy resistor, etc.)
MODE
FUNCTION
(5) Within 2 minutes after the power on, turn VR101 clockwise (x) 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
: No load
: 7CH STEREO (5CH STEREO)
: CD
F Lch
VR101FL
TP101
AVR-2310CI/2310/890, AVC-2310
S Lch
C ch S Rch F Rch
VR101C
VR101SL VR101SR VR101FR
TP103
TP102 TP104 TP105
VR401 VR402
TP401 TP402
S Back Lch S Back Rch
23
PCB MAIN ASSY
PCB 2CH ASSY