Tuner Board Circuit Diagram - Philips AZ 1004/01 Service Manual

TUNER BOARD - CIRCUIT DIAGRAM
6 - 1
TUNER BOARD - ALIGNMENT PROCEDURE
Alignment Procedure
Model No. AZ-1004/01
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
468 kHz ANT MIN.
AM Coil
MW IF
526.5 kHz MAX.
LOOP
1606.5 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.
C301
90 MHz 90 MHz
Cer. Cap.
106 MHz 106 MHz
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Adjust Output Scope/Meter
IC301
T302 MAX.
Pins 18
T301
MAX.
TC2 IC301
Pins 18
L301
MAX.
TC1
IC301
Symmetrical
Pins 18
L304
MAX.
FC1 IC301
L303 Pins 18
MAX.
FC2