28
ADJUSTMENT
Audio Section
Adjusting Idling Current
Required measurement equipment: DC Voltmeter
1. Preparation
(1) Avoid direct blow from an air conditioner or an electric fan and humidity should be moderate, and place the set at
normal usage environment.
Temperature should be at 15 °C ~ 30 °C.
(2) Presetting
• POWER (Power source switch) OFF
• SPEAKER (Speaker terminal) No load
(Do not connect speaker, dummy resistor, etc.)
2. Adjustment
(1) Removed the top cover and set VR41(FL),VR45(FR),VR42(C),VR44(SL),VR43(SR), on Main Amp. Unit at fully
counterclockwise position.
(2) Connect DC Voltmeter to test points (Front-Lch:CN51,Front-Rch:CN55,CENTERch:CN53,
Surround-Lch:CN52,Surround-Rch:CN54).
(3) Connect the power cord to AC Line, and set the power switch to "ON".
(4) Presetting.
MASTER VOLUME : "---" counterclockwise (
c
min.)
SPEAKER (Speaker terminal) : No load
(Do not connect speaker, dummy resistor, etc.)
FUNCTION : DVD
(5) Within 2 minutes after the power on, turn VR41 clockwise (
x
) to adjust the TEST POINT voltage at
1.5 mV ± 0.5 mV DC.
(6) After 10 minutes from the preset above, turn VR41 to set the voltage to 2.0 mV ± 0.5 mV DC.
(7) Adjust the Variable Resisters of each channel (VR42-VR45) in the same way.
CN54
VR41 VR44 VR42 VR43 VR45
CN51
CN52
CN53
CN55
F Lch
S Lch
C ch
S Rch
F Rch
DC Voltmeter
MAIN UNIT ASS'Y
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General
Weight and Dimensions
