JVC PD-42DX - 3.8.2 RECEIVER UNIT

PD-42DX
(No.52088)1-41
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.
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.
1. VCO
2. ATT
i : EXIT
IF SERVICE MENU
1-2 : SELECT
TOO HIGH
ABOVE REF
JUST REF
BELOW REF
TOO LOW
: EXIT
VCO(CW) **** MHz
MAIN SUB
The arrow position
mean AFC voltage level.