(No.MA341)1-41
4.11 TV tuner adjustment
4.11.1 Test instruments
1. DC power supply
2. Multitest signal generator
3. Attenuator
4. Wave form monitor
5. TV monitor
6. Frequency counter
7. Oscilloscope (Using audio out confirmation and adjustment)
8. AC millivolt meter
9. Distortion meter
10. Digital multimeter (Voltage adjustment use)
4.11.2 Test wiring diagram
4.11.3 Test points
DC power
supply
KW-AVX900
(MAIN UNIT)
TV tuner board
RF MULTITEST SIGNAL
GENERATOR
ATTENUATOR
ANT
Tesst points for TV tuner board
IN
OUT
IN
OUT
AC MILLIVOLT
METER
DISTORTION
METER
WAVE FORM
MONITOR
TV MONITOR
OSCILLOSCOPE
FOR AUDIO SIGNAL
CHECK
75 ohm
C980
R926
C944
C943
C930
R929
X901
R970
C939
C938
R937
C935
C934
R936
C937
L907
R934
R933
C933
R931
R932
R921
C921
R927
C931
C920
D905
R919
R925
R920
R924
R918
R922
R923
C919
C918
D904
D903
D902
D901
C923
C922
C924
C925
C927
C928
R935
C936
L904C929
L903
L906
C926
D906
L902
R928
C932
C942
C941
C978
Q902
TP907
C950
TP908
TU901
C965
C964
C963
TP905
TP906
TP919
Q901
TP920
Содержание KW-AVX800J
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