7
7
AVR-3805 / AVC-3890
Video Section
Component Video Level Adjustment
Required measurement equipment etc: Oscilloscope, DVD
VIDEO PLAYER (ex: DVD-1500)
Test Disc: DVD T-S01
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) Playback the color-bar 75% of the Test Disc (Title 12)
using the DVD Video Player, and check that Y and C
levels of the S terminal output are within the specified
output levels.
If they are out of the specified levels, adjust with the
variable resister inside of the unit.
(3) Presetting
POWER (Power source switch) OFF
SPEAKER (Speaker terminal) No load
(Do not connect speaker, dummy resistor, etc.)
DVD (Video terminal) No input
Adjustment
(1) Remove top cover and set VR101, VR102, VR103 on
1U-3475-1 (Convert Unit) at fully counterclockwise (
).
(2) Connect a pin-plug terminated with 75-ohms to Y(Cb,
Cr) of the Component Video Monitor Output, and hook
up the Oscilloscope's probe to both ends of the pin-plug.
(3) Connect S terminal output of the DVD Player with the
DVD input terminal of the Receiver.
(4) Connect power cord to AC Line, and turn power switch
"ON".
(5) Presetting
FUNCTION: DVD
Playback the color-bar 75% of the Test Disc (Title 12)
(6) Turn VR101 clockwise ( ) to adjust the
COMPONENT VideoY voltage (except H.Sync) to 714
±50 mVp-p. (Refer to Fig.1)
(7) Adjust the Variable Resistors of Cb: VR102 and Cr:
VR103 in the same way. (Refer to Fig. 2, 3)
Cb,Cr: 486±50 mVp-p. (U.S.A. & Canada model)
525±50 mVp-p. (Others)
: Oscilloscope, DVD VIDEO PLAYER
(
: DVD-1500)
: DVD T-S01
(1)
15 30
(2) DVD VIDEO PLAYER
75 (Title12) S Y C
(3)
OFF
( )
DVD
(1) 1U-3475-1
VR101, VR102, VR103 ( )
(2) Y(Cb, Cr) 75
Oscilloscope
(3) DVD VIDEO PLAYER S DVD
(4)
"ON"
(5) ON
FUNCTION DVD
75 (Title12)
(6) VR101 ( )
Y(H.Sync ) (Fig.1 )
714mV ±50mVp-p
(7)
Cb: VR102 Cr: VR103
(Fig.2 3 )
Cb,Cr: 525±50 mVp-p.
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