Table of Contents
Advertisement
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 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 VR714,VR724,VR734,VR744,VR754,VR764,VR774 on 7CH AMP UNIT at fully
counterclockwise (c) position.
(2) Connect DC Voltmeter to test points (FRONT-Lch: CN715, FRONT-Rch: CN725, CENTER ch: CN735, SURROUND-
Lch: CN745, SURROUND-Rch: CN755, SURROUND-BACK Lch: CN765, SURROUND-BACK Rch: CN775.
(3) Connect power cord to AC Line, and turn power switch "ON".
(4) Presetting.
MASTER VOLUME
SPEAKER (Speaker terminal) : No load
(Do not connect speaker, dummy resistor, etc.)
MODE
FUNCTION
(5) Within 2 minutes after the power on, turn VR714 clockwise (x) to adjust the TEST POINT voltage to
6.5mV ± 0.5mV DC.
(6) After 10 minutes from the preset above, turn VR714 to set the voltage to 8mV ± 0.5mV DC.
(7) Adjust the Variable Resistors of other channels in the same way.
DC Voltmeter
VR714
STANDBY
No load
: "---" counterclockwise ( c min.)
: MCH STEREO
: DVD
AMP UNIT
VR744
VR734
CN745
CN715
S Lch
F Lch
CN735
VR724
VR754
CN755
C ch
S Rch
74
VR774
VR764
CN725
CN765
F Rch
S Back Lch
CN775
S Back Rch
Advertisement
Table of Contents
