Tuner Board Circuit Diagram - Philips AZ1138 Service Manual

TUNER BOARD - CIRCUIT DIAGRAM
1 2 3 4
TUNER BOARD ECO6
/PORTABLE AUDIO
FM
A
C-PAD
2104
1105
A
T102 100p
RT-01T
6103
BAV99
Printed
T103
B
AM-RF
Ferrite Antenna only
blue
C
LW only
2110
2111
MW
100p
33p
5104
red
4109
D
5105
LW
3107 Vref
black
4M7
1.4V 0V
3108
E 0V
7104
BC337-40
0.7V
2K2
P01
7105
LW=HIGH
BC337-40
0V
3109
P0
0.7V
MW=HIGH 2K2
F 0V
Frame Aerial only
AM FRAME AERIAL MW
5102 8 7
7KL
G T105
6 1
4101 *
T106
5 2
4102
4 3
*
330k_LW
LW only
H
LW
5103
7PA
4 3
B
2109
2 2108
100p
10p
6 1
8 7
I
J
LW only
VDD VDD
K 4.1V
3123
4.0V
4K7
P0 3125
BC857B
7109
3.9V
10K
P01
3.3V
0V
4.0V
LW=HIGH
L
3180
10K
M
1 2 3 4
7 - 1
5 6 7 8 9
2101
47p
C
3105 T109
220R
FM-RF
3103
8K2
0.6V
*
4110 Q-multiplier
7102
BF550
2103
0V 1n
5131
6131
1SV228
Printed
3102
100K
Printed
FM-OSCILLATOR
6130
1SV228 3142
VCO
3101
100K
33K
2152
33n
560p E_EU
1
T111
5
T112
2107 T110
1u
6105 2159
33p
1 8
2 7
3 6
4 5
RDS only
HN1V02H
AM-OSCILLATOR
3 6
3176
33K
6105-2
HN1V02H
MW 5
5123
3132 4 3
47R
2
2120
18p
6 1
22p_LW
8 7
p
2125 3134
2119
560p 22K
10p
5122 LW
0V 4 3
* 0V
3128 *
0V
7122 2
2123 2124 7124
0.7V BC847C
2K2 390p 22n BC847C
6 1
8 7
2122
3n3
5 6 7 8 9
10 11 12 13 14
AM-IF1
5111 450kHz
3
4
T113
2
3104
T115 2150
1
6
330R
J 100n
8 7 3119
FM-IF1
330R
4105 5109
1 3
I O
J
7119
G 2 FM-IF2
5110
BFS20
J 1 3
J I O
3113
2112
1K
100p 2
G
2128
10u
2V
Vref 7101
TEA5757H
2165
100n
2129
100u
44 43 42 41 40 39 38 36 35
? ?
T128
AM DET
2V
1V
1 RIPPLE FM-IF2I ? 0.7V
AM-IF
D AGC
FM
0V 2 AM AM
AM-RF AM-AFC 32 1.4V
IF1
FRONTEND MIXER
CTRL
0V 3 FM-RF P1 31 4.3V
AGC
AM
AM IF
4 30 3.4V
RF-GND1 P0
OSC
FM
FRONTEND FM
0V 5 FM-OSC FM WR-EN ? 0V
IF2
FM
MIXER
OSC
VSA
6 28 0V
0V AM-OSC VSB DATA
VDD AGC
RIPPLE
VCC1 3.5V 3.5V 7
VCC1 CLCK ? 0V
STABILIZER
AM
8 I-TUNE DIG-GND 26
4.5V-8V CHARGE
DET
3141
PUMP
1V-8V
AGC 25 1.4V
1V 9 VCO XTAL XT
56K FM OSC
VCC2
1.3V DET
10 AF-OUT MONO/ 24
0.7V
STEREO
11 STEREO 23
MPX-IN
2127
VDD
1.2V DECODER
VCC2
4.7V
AFC
220n
2126
330p
12 13 14 15 16 17 18 19 20 21 22
T116
T142
VCC2
T141
2132
2141
470n
2133 2164 100n
2131
1u
VCC2
470n
470n
3145
2K2
2139
15p
2
DISCRIMINATOR
5119
VCC1
4 T117
3
3143 2
2140
22K
82p
1
MPX 6
3144 2169
1.3V
8 7
1K 2n2 to 1122
pin 2
0.7V 7103
BC857C
2149
MPX
33p
BUFFER AMPLIFIER 6183
0.1V 3137 P0
0.7V 15K MW=HIGH
0.5V
2134 2135
15n
15n
22n_USA
22n_USA
10 11 12 13 14
7 - 1
15 16 17 18 19
VERSION PROGRAMMING COMPONETS
VERSION
6120 3156 3157 3170
/00 /02 FM/MW/LW
AM-IF2
/00 /02 FM/MW
5112
450kHz
3 /01 FM/MW
4
T114
/14 FM-OIRT/MW
2
/17 FM/AM
1 6
/06 JAPAN
7 8
7P
component mounted
AM-AFC
5114 450kHz VERSION DETECTION
3
4
P1
6120
2
1 6 BAS216
3156
7 8
100K
7P
7111
BC847C
P1
3170 3157
p
100K 100K
2161
100n
P0
LW
2163
100n
3161
152 kHz, 50mVpp
22K
5V
3160
470R
3159
2166
3169 0V
470R
stereo
2148
2146
150K 1n
2147
2n2 220p
5121 3
2167
220p
12p
DT-381 75K Hz
3158 T123
stereo 0.2V
STEREO
mono 4.8V T122
470R
0V
CLOCK
T121
0V DATA
2145
220p T120
ENABLE/MPX
MPX
0V
from 2169
VDD
T118
3155
4.7V
VDD
4.1V
47R
2144
3.9V-LW
470n
5.4V typ.
T140
3167 3166 T127
(5V-12V)
3.5V VCC
VCC1
3.4V T126
11.4V 47R 47R
RIGHT
2130
470n 3186 T125
GND
180R
VOLTAGE MULTIPLIER
LEFT
2190
22u
T124
6182
6181
BAV99
BAS216
2194 2193 2192
7V 7.5V
1n 1n 1n
2191
22u
3188
2K2 OSCILLATOR
2196
5.2V
10n
7180
3189 BC857B 5.4V
7183 0V 0.1V
2197
BC847C
10n 22K
3187 3153
2187
3190 470R
1K
10n
10K
4.8V
3191 3192
4.8V
4K7 1M
0.1V 0.1V
7181
BC847C
7182
BC847C
0.5V
3193
2188 3195
3196 2K2
470K
10n
10K
3194
2189
100K
220n
15 16 17 18 19
20 1105 A2 4104 L7
1121 H20 4105 B12
1122 G20 4109 D5
2101 B5 4110 D5
2103 D9 5102 G4
2104 A4 5103 H3
2106 C5 5109 B13
2107 H6 5110 B14
2108 H4 5111 A11
A
2109 H4 5112 B16
7111
2110 C4 5114 C16
2111 C4 5119 J13
2112 C13 5121 F16
2119 K8 5122 L7
2120 K8 5123 J7
2122 L8 5130 G8
2123 L8 5131 E9
B
2124 L8 6103 B4
2125 K8 6105-1 C6
2126 G10 6105-2 J8
2127 G10 6106 C6
2128 C11 6120 C18
2129 D10 6130 F7
2130 I17 6131 E7
2131 I11 6181 J16
2132 H11 6182 J15
C
2133 I12 6183 K14
2134 M12 7101 C11
2135 M12 7102 D9
2136 K20 7103 K10
2137 K19 7104 E4
2138 H12 7105 E4
2139 I13 7109 K5
2140 J14 7111 D18
D
2141 I14 7119 B12
2144 H17 7122 L6
2145 G16 7124 L9
2146 F18 7180 K18
2147 F17 7181 L18
2148 F17 7182 L15
2149 K10 7183 K16
2150 A14 T102 A2
E 2152 G6 T103 B2
2153 G7 T105 G2
2155 E8 T106 G2
2159 H9 T109 C9
2161 D16 T110 H7
2163 E16 T111 H6
2164 I14 T112 H9
2165 D10 T113 A12
2166 F16 T114 B15
F
2167 F16 T115 A11
mono stereo
2169 J11 T116 H14
2186 K19 T117 J15
2187 K17 T118 H17
stereo 0.3V
mono 4.8V 2188 M17 T120 G19
1122 2189 M18 T121 G19
2190 I16 T122 G19
2191 J16 T123 G19
5
G
2192 J16 T124 J19
4 2193 J16 T125 I19
2194 J15 T126 I19
3
2195 J14 T127 H19
2196 K16 T128 E10
2
2197 K15 T140 H17
1 3101 G6 T141 H13
3102 E6 T142 H14
H 3103 D9
3104 A10
3105 C8
1121 3106 C3
3107 D4
3108 E3
4
3109 F4
3 3113 B12
3119 A13
I
2
3123 K4
3125 K3
1
3128 L5
3132 K7
3134 K9
3137 L10
4
3141 F10
3142 F9
J
3143 J10
3144 J11
3145 I12
3152 K20
3153 K19
2136 3155 H17
220n 3156 D18
3157 D18
K
3158 G18
3159 F18
3160 F17
3152 3161 E18
470R 3166 H18
3167 H17
3169 F16
3170 D17
3176 J9
L
3180 L5
3181 G8
3186 I19
3187 K18
3188 K17
3189 K17
3190 K17
3191 L17
M
3192 L18
3193 M18
3194 M18
3195 M18
3196 M15
4101 G3
4102 G3
20