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ADJUSTMENT <TUNER SECTION>
MAIN C.B
CADOOOO
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TP-OUT
< TUNER SECTION >
1. Clock Frequency Adjustment
Settings : eTest point : TP5
Method: Set to MW 1602kHz (HE,HK,HR,K,E,EZ,EEZ),
1710kHz (LH,U) and check that the test point is
2052kHz + 0.05kHz (HE,HR,K,E,EZ,EEZ),
2160kHz + 0.05kHz (LH,V).
MW VT Check (HE,HK,HR,LH,U only)
Settings : «Test point : TP1
Method : Set to MW 531kHz (HE,HK,HR), 530kHz (LH,U)
and check that the test point is 1.1V + 0.2V (LH).
MW VT Adjustment (E,EZ,EEZ,K only)
Settings : Test point : TP1
eAdjustment location : L453
Method : Set to MW 531kHz and adjust L453 so that the test
point becomes 1.1V +0.2V.
LW VT Adjustment (E,EZ,EEZ,K only)
Settings ; «Test point : TP1
Method : Set to LW 144kHz so that the test point becomes
1.3V +0.05V.
FM VT Adjustment
Settings : Test point : TP1
eAdjustment location : L406
Method : Set to FM 108MHz and adjust L406 so that the test
point becomes 9.4V + 0.05V.
6A.MW Tracking Adjustment (E,EZ,EEZ,K)
Settings : »Test point : TP-OUT
«Adjustment location : L451
MW
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shes atdaccasshestsoessnacleetckateecteel 603kHz
TCAS Vorscasccssscecnsectaedstscenstesescerserssuisdesssescsassuleoccat 1404kHz
Method : Set up TC451 to center before adjustment. The
level at 603kHz is adjusted to MAX by L451. Then
the level at 1404kHz is ajusted to MAX by TC451.
-44-
After adjustment, proceed the MW tracking check.
Set to MW 999kHz (E,EZ,EEZ,K), MW 1000kHz (LH,U) and
check that the test point is less than 59dB.
6B.LW Tracking Adjustment (E,EZ,EEZ,K)
TAS 2 snore ctonieccacaevventcevasdeviceasesestetadibensdtesecisagissionees 144kHz
TOAS2 : iceosssissanvsschssnssessensssnestsaicadetussdsevessasvatseeseive 299kHz
Method : Set up TC452 to center before adjustment. The
level at 144kHz is adjusted to MAX by L452. Then
the level at 299kHz is ajusted to MAX by TC452.
7. MW/LW IF Adjustment
Settings : «Test point : TP-IF
8. FM Tracking Adjustment
Settings : «Test point : TP-OUT
eAdjustment location :
TCAOT PCO? ccs coscstcccscotcuceasascecs 108MHz
9. FM IF Adjustment
Settings : «Test point : TP-OUT
10. FM Separation Check
Settings : «Test point : TP-OUT
Method: Set to FM 98.0MHz and check the separation at
TP-OUT is more than 25dB.
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