Philips AZ 1004/00C Servicehandleiding - Pagina 13

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Philips AZ 1004/00C Servicehandleiding
TUNER BOARD LAYOUT DIAGRAM
7 - 2

TUNER ADJUSTMENT

Alignment Procedure
Model No. AZ-1003
Instruments Required :
1.
AM Signal Generator
2.
FM Signal Generator
3.
AM/FM if Sweep Generator
4.
Dual Trace Oscilloscope
5.
Solid State Voltage Meter (SSVM)
6.
Frequency Counter
7.
Nonmetallic Alignment Tools
8.
Test Tape : Teac - MTT 113N (6.3 kHz) or Equiv.
9.
Test Tape : Teac - MTT 111N (3 kHz) or Equiv.
Important
1.
Check Power Source Voltage
2.
Set the Function Switch to Band Being Aligned.
3.
Volume Should Be Turned To Minimum.
4.
Signal Input Should be Kept as Low as Possible.
5.
AM Modulation : 1 kHz 30%
6.
FM Modulation : 1 kHz 22.5 kHz DEV.
Radio Alignment
Frequency
Input
Varian
MW IF
LOOP
455 kHz
ANT
MIN.
AM Coil
MW IF
520 kHz
MAX.
LOOP
1750 kHz
MIN.
ANT
600 kHz
600 kHz
AM Coil
1400 kHz
1400 kHz
FM IF
IC301
10.7 MHz
MIN.
Pins 4
FM IF
87.5 MHz
MAX.
FM ANT.
108.5 MHz
MIN.
C312
90 MHz
90 MHz
Cer. Cap.
106 MHz
106 MHz
7 - 2
Adjust
Output
Scope/Meter
IC301
T302
MAX.
Pins 18
T301
MAX.
VC301C
IC301
Pins 18
L305
MAX.
VC301D
IC301
Symmetrical
T303
Pins 18
L302
MAX.
VC301A
IC301
Pins 18
L303
MAX.
VC301B