Philips AZ 2045 Service Manual - Page 14
Browse online or download pdf Service Manual for Stereo System Philips AZ 2045. Philips AZ 2045 34 pages. Cd soundmachine
Also for Philips AZ 2045: User Manual (9 pages), User Manual (15 pages), Specifications (2 pages), User Manual (12 pages), Manual (8 pages), Manual (10 pages), (Swedish) Snabbmanual (8 pages)
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COMBI BOARD - CIRCUIT DIAGRAM
(TUNER PART)
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
2K2
0.7V
P01
7105
LW=HIGH
BC337-40
0V
3109
P0
2K2
0.7V
MW=HIGH
F
0V
Frame Aerial only
AM FRAME AERIAL
MW
5102
8
7
7KL
G
T105
6
1
*
T106
4101
5
2
4102
4
3
*
330k_LW
LW only
H
LW
5103
7PA
4
3
B
2
2109
2108
100p
10p
6
1
8
7
I
...V
FM mode stereo
J
...V
MW mode
LW only
V EVM
...V
LW mode
VDD
VDD
voltages measured while
set is tuned to a strong
transmitter
4.1V
K
3123
4.0V
4K7
P0
3125
BC857B
7109
10K
3.9V
P01
3.3V
0V
4.0V
LW=HIGH
L
LEGEND
3180
* ... only assembled in FM/AM-version
p ...for provision only
USA ... for USA version only
M
LW ... for LW version only
LW frame ... for LW version with frame aerial only
E_EU ... for East European version only
J ... for JAPAN version only
1
2
3
4
7 - 1
5
6
7
8
9
2101
47p
C
3105
T109
220R
FM-RF
0.6V
*
Q-multiplier
4110
7102
BF550
0V
5131
6131
1SV228
3102
100K
FM-OSCILLATOR
6130
1SV228
3142
VCO
3101
33K
2152
33n
560p E_EU
1
T111
5
2107
T110
1u
6105
2159
33p
1
8
2
7
3
6
4
5
HN1V02H
AM-OSCILLATOR
3
6
6105-2
HN1V02H
5123
MW
5
3132
4
3
47R
2
2120
18p
6
1
22p_LW
8
7
p
3134
2125
2119
560p
22K
10p
LW
5122
0V
4
3
*
3128
*
0V
7122
2
2123
2124
BC847C
2K2
0.7V
390p
BC847C
22n
6
1
8
7
2122
10K
3n3
5
6
7
8
9
10
11
12
13
AM-IF1
5111
450kHz
3
4
T113
2
3104
T115
1
6
330R
J
8
7
3119
FM-IF1
330R
4105
5109
1
3
I
O
J
7119
G
2
BFS20
J
J
3113
2112
1K
100p
2128
10u
2V
Vref
7101
TEA5757H
3103
8K2
2165
100n
2129
100u
2103
1n
44
43
42
41
40
39
38
?
36
35
?
T128
AM DET
2V
Printed
1
RIPPLE
AM-IF
D
AGC
FM
0V
2
AM
AM
AM-RF
IF1
FRONTEND
MIXER
Printed
3
CTRL
0V
FM-RF
AGC
AM
AM
IF
4
RF-GND1
OSC
FM
FRONTEND
FM
0V
5
FM-OSC
FM
IF2
FM
MIXER
OSC
VSA
6
0V
AM-OSC
VSB
VDD
AGC
VCC1
RIPPLE
3.5V
3.5V
7
VCC1
STABILIZER
AM
8
I-TUNE
4.5V-8V
CHARGE
DET
3141
PUMP
1V-8V
AGC
1V
9
VCO
XTAL
FM
OSC
56K
VCC2
100K
1.3V
DET
10
AF-OUT
0.7V
STEREO
STEREO
11
MPX-IN
2127
VDD
1.2V
DECODER
VCC2
AFC
220n
2126
330p
12
13
14
15
16
17
18
19
20
21
22
T112
T142
T141
2132
470n
2133
2164
2131
1u
470n
470n
3145
2K2
2139
15p
2
RDS only
DISCRIMINATOR
5119
VCC1
4
3
3143
2
3176
2140
22K
33K
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
0V
0.1V
3137
P0
7124
0.7V
15K
MW=HIGH
2134
2135
15n
15n
22n_USA
22n_USA
10
11
12
13
7 - 1
14
15
16
17
18
VERSION PROGRAMMING COMPONETS
VERSION
2150
/00 /02 FM/MW/LW
100n
AM-IF2
/00 /02 FM/MW
5112
450kHz
3
/01 FM/MW
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
1
6
BAS216
3156
7
8
100K
7P
P1
3170
3157
p
100K
100K
2161
100n
P0
LW
1V
2163
FM-IF2I
?
0.7V
100n
32
1.4V
AM-AFC
3161
31
4.3V
P1
22K
3160
30
3.4V
P0
0V
470R
WR-EN
?
3159
28
0V
DATA
3169
2166
470R
CLCK
?
0V
2148
2146
150K
1n
2n2
2147
220p
26
DIG-GND
5121
2167
220p
XT 25
1.4V
12p
DT-381
75K
Hz
24
MONO/
stereo 0.2V
mono 4.8V
23
4.7V
2145
220p
MPX
from 2169
VDD
T118
3155
4.7V
VDD
4.1V
47R
2144
3.9V-LW
T116
470n
VCC2
T140
3167
3166
2141
3.5V
VCC1
100n
3.4V
11.4V
47R
47R
2130
VCC2
470n
VOLTAGE MULTIPLIER
2190
22u
T117
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
7183
0V
0.1V
2197
6183
BC847C
10n
22K
2187
3187
3190
1K
10n
10K
4.8V
3191
3192
4.8V
4K7
1M
0.1V
0.1V
7181
BC847C
7182
0.5V
BC847C
0.5V
3193
3195
2188
2K2
3196
470K
10n
10K
3194
2189
100K
220n
14
15
16
17
18
19
20
1105 A2
4104 L7
4105 B12
1121 H20
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
6120
3156
3157
3170
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
7103 K10
2136 K20
2137 K19
7104 E4
2138 H12
7105 E4
2139 I13
7109 K5
7111
2140 J14
7111 D18
D
7119 B12
BC847C
2141 I14
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
152 kHz, 50mVpp
2161 D16
T110 H7
5V
2163 E16
T111 H6
2164 I14
T112 H9
2165 D10
T113 A12
2166 F16
T114 B15
F
0V
2167 F16
T115 A11
stereo
mono
stereo
2169 J11
T116 H14
2186 K19
T117 J15
3
2187 K17
T118 H17
stereo 0.3V
mono 4.8V
2188 M17
T120 G19
1122
2189 M18
T121 G19
3158
T123
2190 I16
T122 G19
STEREO
2191 J16
T123 G19
5
T122
470R
G
0V
CLOCK
2192 J16
T124 J19
T121
4
2193 J16
T125 I19
0V
DATA
2194 J15
T126 I19
T120
3
T127 H19
2195 J14
ENABLE/MPX
2196 K16
T128 E10
0V
2
2197 K15
T140 H17
1
3101 G6
T141 H13
3102 E6
T142 H14
H
3103 D9
3104 A10
3105 C8
5.4V typ.
3106 C3
1121
T127
3107 D4
(5V-12V)
VCC
3108 E3
T126
4
RIGHT
3109 F4
3186
3113 B12
T125
3
GND
180R
3119 A13
I
2
3123 K4
LEFT
3125 K3
1
3128 L5
3132 K7
3134 K9
T124
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
5.4V
3159 F18
3160 F17
3153
3152
3161 E18
470R
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
19
20