45
46
8. ALIGNMENT PROCEDURES
TUNER
1. Equipment Requried
- AM Standard Signal Generator (AM SSG)
- Audio Generator
- Oscilloscope
- Distortion Meter
- AC Voltmeter
- DC Voltmeter
- FM Standard Signal Generator (FM SSG)
- Frequency Counter
- Stereo Modulator
Note : Disconnect external FM antenna prior to alignment.
2. Alignment.
2-1. Alignment Test Point
Step
Subject
Signal
generator
setting
Set
frequency
setting
Equipment
connection
Adjustment
point
Adjust for
1
Tunning
voltage
522kHz
522kHz
DC voltmeter
RF BLOCK
OSC coil
522 kHz : 1.0 ~ 1.3V
1611 kHz : 7.0 ~ 8.5V
2
IF Tracking
603kHz
603kHz
IF BLOCK
Coil
KSNT-111I
Maximize audio output
3
RF Tracking
603kHz
603kHz
AC voltmeter
oscilloscope
tape monitor
L/R
AC voltmeter
oscilloscope
tape monitor
L/R
AC voltmeter
oscilloscope
tape monitor
L/R
RF BLOCK
ANT coil
Maximize audio output
Repeat LOW, HIGH
frequency
4
Seek level
999kHz
999kHz
(K,N)
(K,N)
(K,N)
(K,N)
(K,N)
(K,N)
(K,N)
(K,N)
520kHz
(U)
520kHz
(U)
600kHz
(U)
600kHz
(U)
600kHz
(U)
600kHz
(U)
1000kHz
(U)
1000kHz
(U)
SVR 03
Tuned on point
Step
Subject
Signal
generator
setting
Set
frequency
setting
Equipment
connection
Adjustment
point
Adjust for
1
Tunning
voltage
152kHz
152kHz
DC voltmeter
RF BLOCK
OSC coil
522 kHz : 1.5 ~ 2.3V
1611 kHz : 6.0 ~ 7.5V
2
RF Tracking
162kHz
162kHz
AC voltmeter
oscilloscope
tape monitor
L/R
AC voltmeter
oscilloscope
tape monitor
L/R
RF BLOCK
ANT coil
Maximize audio output
Repeat LOW, HIGH
frequency
3
Seek level
207kHz
207kHz
Tuned on point
2-2. AM(MW) Alignment
Output of signal generator should not be greater than necessary to obtain an optimum output reading.
Signal generator modulation ................................................................. 30%
Signal frequency ................................................................................ 400Hz
Modulation frequency ........................................... 603, 999, 1404kHz (K,N)
Modulation frequency ............................................ 600, 1000, 1400kHz (U)
Switch ........................................................... press the BAND Button to AM
2-3. LW Alignment (N Version only)
Output of signal generator should not be greater than necessary to obtain an optimum output reading.
Signal generator modulation ................................................................. 30%
Signal frequency ................................................................................ 400Hz
Modulation frequency ....................................................... 162, 207, 252kHz
Switch ........................................................... press the BAND Button to LW
Содержание SR7200
Страница 5: ...3 4 2 WIRING DIAGRAM SR7200 PS7200 only SR7200 PS7200 only SR5200 SR6200 SR7200 only ...
Страница 6: ...3 BLOCK DIAGRAM 5 6 SR7200 only SR7200 only SR7200 only SR7200 only SR7200 only ...
Страница 7: ...7 8 4 SCHEMATIC DIAGRAM 7020 06075 000 3 ...
Страница 8: ...9 10 7020 06140 000 1 ...
Страница 9: ...11 12 POWER SW with TACT SW 7020 06076 000 3 7020 06076 004 0 7020 06076 003 0 7020 06076 002 0 ...
Страница 11: ...15 16 7020 06076 001 1 ...
Страница 12: ...17 18 7020 06079 000 2 ...
Страница 13: ...7020 06009 000 1 7020 06106 001 0 7020 06088 000 1 19 20 ...
Страница 14: ...21 22 7020 06078 001 2 7020 06078 001 2 ...
Страница 15: ...23 24 To repair the Tuner circuit board replace the whole Tuner B D Assy Refer to the Parts list ...
Страница 22: ...34 SPEAKER A SPEAKER B PS7200 SR7200 ONLY Q901 IC898 COMPONENT VIDEO PS7200 SR7200 ONLY IC899 ...
Страница 24: ...36 Q806M IC805M IC806M Q821 Q871 Q822 Q873M Q870 Q805M Q851M VIDEO ...
Страница 25: ...37 TUNER K U ONLY To repair the Tuner circuit board replace the whole Tuner B D Assy Refer to the Parts list ...