Adjustment; Audio Section; Idling Current (1U-3854-1) - Denon AVR-2308CI Service Manual

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ADJUSTMENT

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Audio Section

Idling Current (1U-3854-1)

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 sourse switch)
SPEAKER (Speaker terminal)
(Do not connect speaker, dummy resistor, etc.)
Adjustment
(1) Remove top cover and set VR401, VR402, VR403,
VR404, VR405, VR406, VR407, on 1U-3854-1 (Power
Amp Unit) at fully counterclockwise (
(2) Connect DC Voltmeter to test points (FRONT-Lch:
CX063 pin, FRONT-Rch: CX063
CENTER ch: CX063
pin, SURROUND-Rch: CX082
SURROUND BACK-Lch: CX082
BACK-Rch: CX082
(3) Connect power cord to AC Line, and turn power switch
"ON".
(4) Presetting.
MASTER VOLUME : "---" counterclockwise (
MODE
FUNCTION
TE
L 13942296513
(5) Allow 2 minutes, and turn VR401 clockwise (
adjust the TEST POINT voltage to 6.5 mV
(6) After 10 minutes from preset, turn VR401 to set the
voltage to 8 mV
(7) Adjust the Variable Resistors of other channels in the
same way.
(8) After 5 minutes from (6), turn VR401 to set the voltage to
8 mV 0.5 mV DC.
(9) Adjust the Variable Resistors of other channels in the
same way.
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OFF
No load
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pin,
pin, SURROUND-Lch: TP102
pin,
pin, SURROUND
pin).
: 7CH STEREO
: CD
0.5 mV DC.
0.5 mV DC.
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AVR-2308CI / AVR-888 / AVR-2308 AVC-2308
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