Philips AZ1009 Service Manual page 22

1 2 3
TUNER BOARD
A
provisional
T101
A
8020
B
T102
C
D
E
F
G
H
VARCO 2106
C1
C2
I
C3
C4
1 2 3
CS 49 122
6-1
4 5 6
AM-IF1 468kHz
5106
3 4
REF_A
1 6
REF_A
2
2101 FM-IF1
100p
5107a REF_A
0V
0.7V 1.4V 1.4V 1V 1.4V
16 15 14 13 12
V Stab A
FM
FM FM
MIXER
Frontend
IF 1
FM
OSC.
AM AM
MIXER OSC.
AM
AGC
Frontend
SUB GND
17 18 19 20 21
AM-RF 0V 2V 0.7V 0V
0.2V
C
T105 MW
2106
C4
160p
B
FM-RF
2106 P
C2
FM-OSC.
2111
2106
9151
C1
4 5 6
7 8 9
AM-IF2 468kHz
5108
3 4
1 6
2
FM-IF2
T108 DISCRIMINATOR
5107b
CDA10.7MC
5107c
1V 1V 1V 0V
0.7V 1.4V 0.7V 1.4V 0.7V 1V 1V
11 10 9 8 7 6 5 4
IF GND
V Stab B
PILOT
FM
FM
DET.
DET.
IF 2
IF AMP
38kHz
PHASE
SYNCH
DET
DET.
MUTE
AM/FM
INDIC.
SWITCH
AM
AM IF
DET.
AM/FM
V Stab A V Stab B SWITCH
MONO/ST
SWITCH
AM FM
V/I
STABILIZER
CONV.
DRIVER
IF GND
22 23 24 25 26 27 28 29
0V 0V 1V 0.7V 1.2V
Vcc 1.1V
VCO
7,4V
8.1V
2113
0u22
BIRDY
FILTER
0V
1.1V
0,6V
7102
BC548C
0V
FM/AM SWITCH
5105 MW
4
6
P
7 8 9
6-1
10 11 12
1
2118
1u
P
2
2117
1u
P
0.6V 0.6V
3 2 1
nc
7101 Vcc
T113
TEA5711T 7.4V
8.1V
MATRIX
SOFT
T116
MUTE
SDS
CONTROL
VCO
LED
MUTE DIVIDER
19/19/38kHz
30 31 32
0V 0.8V 0.7V
0.1V
152kHz, 50mV
5V pp
Vcc
0V
stereo mono stereo
2k2 3
T106
AM-OSCILLATOR
T109
3
2
2106
C3
1
82p
10 11 12
13 14
1101 B14
2101 B 4
2102 B 4
2103 F 5
2104 F 6
2105 H 5
2106 I 6
A
2106 I11
2106 F 5
2106 H 5
2108 I 7
2109 I 6
2110 I10
2111 I 7
2112 C12
2113 F 9
2114 G 9
2115 B 9
1101
2116 A11
T112
5
TUNER-L B
2117 A11
2118 A11
2119 B11
4
GND
2120 F10
2121 F10
T111
3 2122 G10
TUNER_R
2123 H 6
3107 3101 F 8
T110
8.2V 2
+A(TUNER)
3102 G 8
33R
9V
3104 F10
3106 C12
1
+A(FM) C
3107 C13
0.6V 3109 B11
0V 3110 A11
3113 F11
T120
3114 G 9
5101 H 6
5102 G 4
5104 I 7
5105 I 9
5106 A 5
D 5107a B 6
5107b B 8
5107c B 9
5108 A 7
6101 B 2
6102 B 2
7101 C11
7102 G 8
9151 I 6
E
F
G
P provisional only
Signal path
H
FM
AM
MPX (Audio Frequency)
AF - left/right
DC voltages measured
I
with mains supply 230V
....V FM mode stereo
V EVM
V AM mode
EVA tuner, 230997
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