Tuner Board Circuit Diagram - Philips AZ 2558 Service Manual

TUNER BOARD - CIRCUIT DIAGRAM
1 2 3
TUNER BOARD ECO6
/PORTABLE AUDIO
FM
C-PAD
1105 2104
A
A
T102 100p
RT-01T
6103
BAV99
Printed
T103
AM-RF
Ferrite Antenna only
B
blue
LW only
MW
5104
red
5105
C
LW
3107
black Vref
4M7
1.4V 0V
3108 0V
7104
BC337-40
0.7V
2K2
P01
7105
LW=HIGH
BC337-40
D
0V
3109
P0
0.7V
MW=HIGH 2K2
0V
Frame Aerial only
AM FRAME AERIAL
MW
5102 8 7
E 7KL
T105
6 1
4101 *
T106
5 2
4102
4 3
*
330k_LW
LW only
LW
5103
7PA
B 4 3
F
2
6 1
8 7
G
LW only
VDD VDD
H
P0 3125
3.9V
10K
P01
3.3V
LW=HIGH
I
1 2 3
7 - 1
4 5 6
C
3105 T109
220R
FM-RF
0.6V
*
Q-multiplier
7102
BF550
0V
5131
Printed
3102
100K
Printed
FM-OSCILLATOR
3142
VCO
3101
33K
1
T111
5
T110
6105
1
8
2 7
3 6
4 5
HN1V02H
AM-OSCILLATOR
3 6
5123 MW 5
4 3
2
6 1
4.1V
4.0V
8 7
BC857B
7109
5122 LW
0V
0V 4 3
4.0V
* *
3128 0V
7122 2
7124
BC847C
2K2 0.7V BC847C
6 1
8 7
4 5 6
7 8 9
AM-IF1
5111 450kHz
3
4
T113
2
T115 2150
6 1
100n
8 7 FM-IF1
4105 5109
1 3
I O
J
7119
G 2
BFS20
2128
10u
2V
7101
Vref
TEA5757H
44 43 42 41 40 39 38 37
2165
AM DET
100n
2129 2V
1 AM-IF
RIPPLE
AGC
FM
100u
AM AM
IF1
2 AM-RF
0V
FRONTEND MIXER
CTRL
T128
0V 3 FM-RF
AM FM
AM AGC
IF IF2
OSC
4
RF-GND1
FM
D
FRONTEND
FM
AGC
5 FM-OSC MIXER
0V CONTROL
FM
OSC PRE- MULTI-
SCALER PLEXER
0V 6 AM-OSC
AGC
VSTABA VSTABB
RIPPLE
VCC1
7 VDD
VCC1
3.5V
STABILIZER
3.5V
AGC AM
8 I-TUNE
4.5V-8V DET
CHARGE
1V-8V PUMP
3141 FM
9 VCO
1V
DET
1.3V VCC2
56K
100K
0.7V 10 AF-OUT
2127
1.2V 11 MPX-IN STEREO
AFC
220n
DECODER
12 13 14 15 16 17 18 19
2164
470n
2
RDS only
DISCRIMINATOR
5119
VCC1
4
3
2
1
MPX 6
3144 2169
1.3V
8 7
1K
2n2 to 1122
0.7V pin 2
7103
BC857C
MPX
BUFFER AMPLIFIER
0V
0.1V P0
3137
0.7V 15K MW=HIGH
7 8 9
...V
LEGEND
* ... only assembled in FM/AM-version ...V
p ...for provision only
V EVM ...V
USA ... for USA version only
LW ... for LW version only
voltages measured while
LW frame ... for LW version with frame aerial only
set is tuned to a strong
E_EU ... for East European version only
transmitter
J ... for JAPAN version only
7 - 1
10 11 12 13
VERSION PROGRAMMING COMPONETS
VERSION
6120
/00 /02 FM/MW/LW
AM-IF2
/00 /02 FM/MW
5112
450kHz
/01 FM/MW
3 4
T114 /14 FM-OIRT/MW
2
FM-IF2 /17 FM/AM
1
6
5110
/06 JAPAN
7 8
1 3
7P
I O
component mounted
2
G
AM-AFC
VERSION DETECTION
5114 450kHz
3
4
P1 6120
2
36 35 34 1 6 BAS216
7 8
7P
1V
7111
0.7V
BC847C
FM-IF2-IN 33
P1
AM-AFC 32
1.4V
P0
P1 31 4.3V
30 3.4V
P0
3161
WRITE-EN 29 0V
22K
3160
DATA 28 0V
470R
3159
27 0V
CLOCK
3169 2166
470R
26
DIG-GND
150K
1n
5121
2167
25 1.4V
XTAL
OSC 12p
DT-381 75K Hz
3158
24
stereo 0.2V
MONO/
STEREO mono 4.8V
470R
23
VDD
4.7V
VCC2
MPX
from 2169
VDD
T118 3155
4.7V
20 21 22 VDD
4.1V
47R
3.9V-LW
VCC2
5.4V typ.
T140
3167 3166
(5V-12V)
3.5V
VCC1
3.4V
11.4V 47R 47R
VCC2
VOLTAGE MULTIPLIER
2190
22u
T117 6182
6181
BAV99
BAS216
2194 2193 2192
7V 7.5V
1n 1n 1n
3188
2K2 OSCILLATOR
5.2V
7180
3189 BC857B
5.4V
7183 0V 0.1V
BC847C
22K
4.8V
4.8V
0.1V 0.1V
7181
BC847C
7182
0.5V
BC847C
0.5V
10 11 12 13
FM mode stereo
MW mode
LW mode
14 1105 A1 4104 I5
1121 F14 4105 A9
1122 E14 4109 C3
2101 A3 4110 C4
2103 C7 5102 E3
2104 A3 5103 F2
2106 B4 5109 A9
2107 F4 5110 B10
2108 F3 5111 A8
2109 F3 5112 A11
3156 3157 3170 7111
2110 B3 5114 B11
2111 B3 5119 G9
A 2112 B9 5121 E11
2119 H6 5122 H5
2120 H6 5123 G5
2122 I6 5130 E6
2123 I6 5131 C6
2124 I6 6103 A3
2125 H6 6105-1 B4
2126 E7 6105-2 G6
2127 E7 6106 B4
2128 B8 6120 B13
2129 C7 6130 D5
2130 F12 6131 C5
B
2131 F8 6181 G12
2132 F8 6182 G11
2133 F8 6183 H10
2134 I9 7101 B8
2135 I9 7102 C7
2136 H14 7103 H7
2137 H14 7104 D3
2138 F9 7105 D3
2139 G9 7109 H3
2140 G10 7111 C13
2141 F10 7119 A9
2144 F12 7122 I4
C
2145 E11 7124 I7
2146 D13 7180 H13
2147 E12 7181 I13
2148 D12 7182 I11
2149 H7 7183 H11
2150 A10 T102 A2
2152 E4 T103 A2
2153 E5 T105 E2
2155 D5 T106 E2
2159 F6 T109 B6
152 kHz, 50mVpp 2161 C11 T110 F5
5V
D 2163 D11 T111 F4
2164 F10 T112 F7
2165 C7 T113 A9
2166 D12 T114 A11
2167 E12 T115 A8
0V
2169 G8 T116 F10
stereo mono stereo
2186 H13 T117 G10
2187 H12 T118 F12
3
stereo 0.3V
2188 I12 T120 E14
mono 4.8V
2189 I13 T121 E14
1122
2190 G12 T122 E14
T123
STEREO
2191 H11 T123 E14
5 E
T122
2192 G12 T124 G14
0V
CLOCK
2193 G11 T125 F14
T121 4
0V DATA 2194 G11 T126 F14
3 2195 G10 T127 F14
T120
ENABLE/MPX
2196 H12 T128 C7
0V
2
2197 H11 T140 F12
3101 E4 T141 F10
1
3102 D4 T142 F10
3103 C7
3104 A7
3105 B6
3106 B2
F
1121
3107 C3
T127
VCC 3108 D2
T126 4 3109 D3
RIGHT
3113 B9
T125 3
3119 A9
GND
3123 H3
2
LEFT
3125 H3
3128 I4
1
3132 H5
3134 H6
T124
3137 I7
4 G 3141 E7
3142 E7
3143 G7
3144 G8
3145 F8
3152 H14
3153 H14
3155 F12
3156 C12
3157 C12
3158 E13
3159 D13
H
3160 D13
3161 D13
3166 F13
3167 F12
3169 D11
3170 C12
3176 G7
3180 I3
3181 E6
3186 F13
3187 H12
3188 H12
I
3189 H12
3190 H12
3191 I12
3192 I12
3193 I13
3194 I13
3195 I12
3196 I10
4101 E2
4102 E2
14