JVC PD-35D30ES, Руководство по обслуживанию

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PD-35D30ES
1-42 (No.52091)
3.8.2 RECEIVER UNIT
Item
Measuring
instrument
Test point Adjustment part Description
VCO (AFC)
check Remote control
unit
Signal generator
[1.IF] (1) Receive a PAL colour bar signal.
(2) Select "1. IF" from the SERVICE MENU.
(3) Select "1. VCO."
(4) Make sure that an arrow of "MAIN" is in the position
between "ABOVE REF." and "BELOW REF."on the
screen
(5) Make sure that an arrow of "SUB" is in the position
between "ABOVE REF." and "BELOW REF."on the
screen.
Fig.3
SUB
BRIGHTNESS Remote control
unit
Signal generator
[2.V/C]
9. BRIGHT
(Bright) (1) Receive a PAL black and white pattern signal
(including 0% black signal).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust <9. BRIGHT> (Bright) to set the 0% black
part to be the brightest.
(4) Press the [OK] key to save the value.
Fig.4
SUB
CONTRAST Remote control
unit
Signal generator
[2. V/C]
10. CONT
(Contrast) (1) Receive a PAL black and white pattern signal
(colour off).
(2) Select "2. V/C" from the SERVICE MENU.
(3) Adjust <10. CONT> (Contrast) to set the white part
to be white.
(4) Press the [OK] key to save the value.
Fig.5
1. VCO
2. ATT
i : EXIT
IF SERVICE MENU
1-2 : SELECT
i : EXIT
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
VCO(CW) 216.00MHz
MAIN SUB
The arrow position
mean AFC voltage level.
Set the 0% black part
to be brightest.
<OK>
0% black part
<NG>
Black and white pattern signal Black and white pattern signal
White part to be white.
<OK> <NG>
Black and white pattern signal Black and white pattern signal
White part