KORTING 41 625 Kundendienstanleitung Seite 3

Servicing Settings
Preparation
Setting
Picture amplitude Test card
Picture linearity Test card
Test car
Picture frequency
Test card
Line frequency
Test card
Line linearity
High tension voltage Test card
Brightness
Test card
Picture width
Test card
Picture shift horiz.
Test card with grid
EIW amplitude
Test card with grid
EIW raster
Test card
Focus
PAL-SECAM-
Alignment
Passage curve
Bell-shaped fileter 1st possibility
Bell-shaped filter 2nd possibility
switch off UG 2,
Grey tuning
controls
in mid position
connect
on IF-module
switch
switch
White tuning
set contrast
short
Colour carrier
(F-module)
Delay line amplitude Standard
Standard
Delay time phase
SECAM identification SECAM
The equipment must be allowed to operate for approx. 10 minutes before adjustments are made.
Instrument
with circle
with circle
with circle
Voltmeter
minimum
with circle
with circle
Video
wobbulator
Scope
Scope
Scope
Scope
Scope
Oscilloscope
R 754/756
pin 2 and 3 Voltmeter
on UG 2
Oscilloscope
off UG 2,
control to max.
Oscilloscope
Oscilloscope
circuit F IIF 2 and F 3/F 4
colour test card
colour test card
Oscilloscope
test card
Measure pt. Setting procedure
set withcontrolR321 @
set withcontrolR312 @
set withcontrolR309 @
short circuit pin 3 of V-board to ground
set with control R 438
short circuit measurement
MP 01 IMP 02
setwithcoil L 1023 @
set 155Vwith controlR623 E]
(corresponds to 26 kV)
set with control R 396
set with control R 427
set with control R 385
set with control R 386
set with the control
Pin I set suction hole to 6 MHz with
(F-module)
R 737
MP F 1 (Pin 23, set max. 5 MHZ With
TDA 3510)
R 737 set suction hole to 4,1 MHz with L 709
set suction hole to 5,5 MHz with L 707
set a straight passage curve between 4,1 MHz
and 5,5 MHz with L 708
Pin 2. set to max. 4,286
TDA 3520
Pin 2, align differences
TDA 3520 minimum with L 702
B 11B 21B 3 with controls R838
set clamp connection
(see oscillogram)
Check point with brightness control set to 150 V
set controls R 946, R 947, R 948 such that agrey
line is just discernable
set with control R 851 picture amplitude
100 vss
set with control R 756 picture amplitude
100 vss
set with control R 754 picture amplitude
100 vss
with trimmer C 708
set venetian effect
sectors with control
set venetian effect
barrier with coils L 704, L 706
MP F 11 (Pin 6, set d.c. potential to minimum with coil L 703
TDA 3520)
points
on the tripler
L 707
L 701
MHz with L 702
of amplitudes in line to
(B 1), R822 (B (B 3)
to 170 V
set colour carrier to fo
minimum in the Antipal
R 708
minimum in the colour
170 v
clamping point