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3.8.2 RECEIVER UNIT
Measuring
Item
instrument
VCO (AFC)
Remote control
check
unit
Signal generator
IF SERVICE MENU
1. VCO
2. ATT
1-2 : SELECT
VCO(CW)
MAIN
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
SUB
Remote control
BRIGHTNESS
unit
Signal generator
SUB
Remote control
CONTRAST
unit
Signal generator
Test point
Adjustment part
[1.IF]
i : EXIT
**** MHz
SUB
The arrow position
mean AFC voltage level.
: EXIT
Fig.3
[2.V/C]
9. BRIGHT
(Bright)
[2. V/C]
10. CONT
(Contrast)
Description
(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.
(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.
(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.
PD-42DX
(No.52088)1-41
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