Circuit Diagram - Philips MC-120 Service Manual

CIRCUIT DIAGRAM - ECO6 SYSTEM CENELEC BOARD
1 2 3
TUNER BOARD ECO6
/ SYSTEMS-CENELEC
A
USA
1101
2105 USA
3
100n 1130
2
C-PAD
1
YKD21
A
FM 75 OHM FM FRONTEND
1110
1102
T102
0V 1
B
1
MIXER
ANT
YKD31- 2
0432
VCC
GND
1131
T103
2 3 4 6 5 9
C-PAD
C
T107
3195
100R
D
LW only
0V
3108
0V 7104
0.7V BC337-40
2K2
P01 LW =HIGH
MW/LW-RF
E
AM FRAME AERIAL
MW
5102
1103
8 7
T105
2 * 6 1
T106 4101
1 5 2
0R
XH-S
4 3
7KL
*
F
B
LW
5103
3
4
2
1
6
8 7
G
VDD VDD
H
8.3V
7.5V
P0 3125
8V BC857B
P01 7109
6.7V
10K
3128
LW=HIGH 0V
7.4V
2K2
I
marked components not for LW version
1 2 3
7 - 1
4 5 6
FE450
3190 T104
7 0V
IF-OUT
120R
8 0.1V
OSC.
D
OUT
10
+FM
C
T109
3105
220R
T110
VCO 3142
6105-1 2
1
T111
7
HN1V02H
100K
1
5
6105
1 8
2 7
LW only
3 6
7105
BC337-40 4 5
0.7V HN1V02H
0.1V
AM-OSCILLATOR
P0
5123 MW
4 3
2
6 1
8 7
LW
5122
7122
0V 4 3
BC847C
0V
0V 2
BC847C
0.7V
6 1
8 7
4 5 6
7 8 9
AM-IF1
5111 450kHz
4 3
T113
2
6 1
8 7
T115
FM-IF1
3191
5109
120R 1 3
I O
2128
G 2
AM/FM
10u
7101
TEA5762 44 43 42 41 40 39 38 37
2165
AM DET
100n
2129 2V
AM-IF
1 RIPPLE
AGC
FM
100u
AM AM
IF1
0V 2
AM-RF FRONTEND MIXER
CTRL
3
FM-GND AM FM
AGC
AM
IF IF2
OSC
4
RF-GND1
CONTROL
0.1V 5 FM-OSC
PRE- MULTI-
SCALER PLEXER
0V 6 AM-OSC
AGC
VSTABA VSTABB
RIPPLE
VDD
7
7.8V VCC1
VCC1
STABILIZER
8.2V
AGC AM
8 I-TUNE DET
1.6-8V
CHARGE
1-8V PUMP
FM
9
1V VCO
DET
1.3V VCC2
3141
0.7V
10 AF-OUT
56K
2127
11 MPX-IN
STEREO
1.2V
DECODER
220n
5115
4 6
8
T112
7
12 13 14 15 16 17 18 19
3 2 1
BIRDY FILTER
470n
2164
RDS only
2
VCC1
5119
4 3
3144 2169 MPX
1.3V
2
1K to 1120
2n2
3176 pin 5
0.7V 1
BC857C
7103 6
33K
8 7
MPX
DISCRIMINATOR
BUFFER AMPLIFIER
0V
0.7V
3137 P0
7124
0.1V 22K
MW=HIGH
7 8 9
LEGEND
* ... only assembled in FM/AM-version SMD jumper
p ...for provision only 41xx
USA ... for USA version only
EVM
0R V
LW ... for LW version only
voltages measured while
set is tuned to a strong transmitter
7 - 1
10 11 12
VERSION PROGRAMMING COMPONENTS
VERSION
/00 /02 FM/MW/LW
2150
/00 /02 FM/MW
AM-IF2
100n 5112 450kHz
3 4
/01 FM/MW
T114
2
/14 FM-OIRT/MW
1 6
FM-IF2
/17 FM/AM
7 8
7P
5110
1 3
I O
AM-AFC
450kHz
5114
G 2
3 4
2
1 6 VERSION DETECTION
36 35 34
7 8
7P P1 6120
1.2V
BAS216
0.7V
FM-IF2-IN 33
P1
32 0V
AM-AFC
1.4V
P0
31
P1 7.5V
30 7.5V
P0
AGC
0.1V
3161
WRITE-EN 29 0V
22K
0V 3160
28
DATA
470R
0V 3159
27
CLOCK
3169 2166 470R
26
DIG-GND
150K
1n
5121
2167
25 1.4V
XTAL
OSC
12p
DT-381 75 kHz
24 stereo 0.2V
MONO/
STEREO mono 4.8V
23
VDD 3158
8.2V
AFC
VCC2 8.3V
470R
7.5V
VDD
from
20 21 22
MPX
2169
T140 3168 3167
7.8V
VCC1
8.2V 120R 120R
8.2V
VCC2
11V T117
VCC2
12V
7112 9.6V
BC547C
T118
8.2V 3155
VDD
8.3V 150R
7.5V
8.9V
8.9V
+FM
8.2V
AM/FM
from 7101/39
10 1 1 12
...V FM mode stereo
Signal path
...V MW mode
FM
AM
...V LW mode
MPX (Audio Frequency)
AF - left/right
13 14
1101 A2 6106 D4
1102 B1 6107 G13
1103 E2 6120 C13
1110 B2 7101 C8
1120 E14 7103 H8
1130 A2 7104 D2
1131 C2 7105 F4
6120 3156 3157 3170 7111 1132 F13 7109 H3
2102 B1 7110 H12
A
2105 A2 7111 C13
2106 E3 7112 G12
2107 E4 7122 H4
2108 G3 7124 H7
2109 G3 T102 B2
2118 H6 T103 B2
2119 H6 T104 B6
2120 H6 T105 E2
2122 I6 T106 E2
2123 H6 T107 C3
2124 H6 T109 D5
2125 H6 T110 D5
B
2127 E7 T111 E5
component mounted
2128 B8 T112 F7
2129 C7 T113 A9
2130 F11 T114 B11
2131 F8 T116 F10
2132 F8 T117 F13
2133 F8 T118 G11
2134 I8 T120 F13
2135 I9 T121 F13
2136 H14 T122 E13
2137 H13 T123 E13
C 2138 F9 T124 G14
2139 G9 T125 F14
2140 G9 T126 F13
0.2V
2141 F10 T127 F13
2143 G12 T140 F11
7111
2144 G11 T141 F10
BC847C
2145 E11 T142 F10
2146 E12
2147 E12
2148 E12
2149 H7
2150 A10
D
2159 D5
2161 C11
2162 H12
2163 D11
2164 G10
152kHz, 50mV pp 2165 C7
5V
2166 E11
2167 E11
2169 G8
0V
2190 C3
stereo mono stereo
2191 C3
3105 D5
3 E
3108 D2
stereo 0.4V
3109 G4
mono 4.8V
3123 H3
1120
3125 H2
T123
STEREO
3128 H3
8
T122 3132 G4
0V CLOCK
3134 H6
7
T121
0V DATA 3137 H7
6 3141 E7
T120
0V ENABLE/MPX
3142 E6
5
T127
3143 G7
12Vtyp
VCC
3144 G8
F
(10-14V)
T126 4
3145 F8
RIGHT
3146 G13
T125 3
GND
3150 H12
2
3151 H12
LEFT
3152 G14
1
3154
3153 G13
FE-BT-VK-N
3154 F13
330R
3155 G12
3156 C12
T124
4
3157 D12
3158 E13
G
3159 D13
3160 D13
3161 D13
3167 F12
3168 F11
3169 E11
3170 D12
3171 G12
3172 G12
3176 H7
3180 I3
3190 B6
H
3191 B7
3192 B6
3193 B4
3194 C4
3195 C3
4101 E2
4102 F3
4104 H5
5102 E3
5103 F2
5109 B9
5110 B10
I
5111 A9
5112 A11
5114 B11
5115 E7
5119 G9
5121 E11
5122 H5
5123 G5
ECO6 Sys-Cenelec, 000907
6105-1 E4
6105-2 G6
13 14