Philips FW21 Wiring Diagrams page 11

Baza Porad Serwisowych
Zestaw audio Philips FW21
ECO4 CIRCUIT DIAGRAM
TUNER UNIT ECO4 (MINI)
FM
2100
T001
1101
100p
1 9197
2
T002
A
1
MW/LW-RF
MW
1 2
6 5
LW
4
AM-FRAME...AERIAL
2
6
1
T006
1103
B
AM/IF
5140
312211821101
3
1
2 MT
+5V
3248
0
3151
2104
1.5k
100p
0.8V
16
FM
Fronted
17
C
3
2113
3-11p
4
3
2114x
100p
5%
2 2,7
LW/MW
1
3245x
7104x
0V
0
BC848C
0.7V
T005
3221
0
3109x
2.2k
7102xA
BC817-40
3107x
3222o
2.2k
LW
0
2126x
100n
A
AM/IF
5142
F7MCS-12216N
4 3
6 1
2
FM/IF
SFE10.7MS3
1.3V
1.4V 1.4V 1V 1.4V 0.7V 1.4V
15 14 13 12 11 10
FM FM
MIXER IF 1
FM
OSC
AM IF
AM AM
MIXER OSC
AM
AGC
Frontend
18 19 20 21 22 23
0V 2.1V 0.7V 0V 0V
0.1V
2151 2150
10µ 10µ
+5V
FM-RF
5109
0V 0.7V
RFI.5T
0V
2115
Q-MULTIPLIER
3-11p
FM-OSC
6109
1SV228
2 1
3
3108
100k
6124 1SV228
1
3120
5.6k
3106
100k
1
3124x
LW/MW
0.7V
2.2k
4
6
MT
2147
DISCRIMINATOR
10n
FM/IF
SFE10.7MS3
2141
2.2µ
1.1V 1.2V 0V
0.7V 1.4V 0.7V 1V 0.9V
9 8 7 6 5 4
V Stab B
PILOT
PRES
FM FM
IF 2 DET DET
IF AMP 38kHz
PHASE
SYNC
DET
DET
Mute
AM/FM
INDIC
AM
SWITCH
DET
AM/FM
V Stab A V Stab B SWITCH
MONO/ST
AM FM
V/S
STABILIZER
CONV
DRIVER
IF GND
24 25 26 27 28 29
0V 5V 0V 1V 0.7V 1.3V
1.6V
+5V
2152
4
100n
BURDY FILTER
2174
560p
2162
1µ
3149
82k
3111
5120
VCO 152kHz
15k
RFI.5T
3148
2121 15p
47k
3176 2175
2 100p
100k
3
2120
470p
2185
100n
3244
0
5123
4
3243o
3238x
0
0
Include
6
MT
5122x
4
0V
7121x
BC848C
6
MT
Baza Porad Serw
/20/21/22/37
HEF4069UBT
2.5V
7150 HEF4069UB
2156 3154
100n 33k
T014
2154
2.2n
2157 3155
100n 33k
T013
2155
2.2n
1.7V
0.6V 0.6V
1
3 2
AM/FM/IF
MATRIX
COUNT
AMP
SOFT
MUTE
SOS
CONTROL
VCO
SWITCH
LED
Mute DIVIDER
19/19/38kHz
2142
1µ
30 31 32 0.7V
MUTE=High
0.8V
0V
0V
MONO=Low
5V
STEREO=Low
AM=HIGH
2168
1.8n
3112
22k
1
2.5V 2.5V
7150
HEF4069UBT
AM OSCILLATOR
3242 3132
0 4.7k
MW
3
2
2136
27p
1
110µH
LW
7123x
3
BC848C
2129x
2
2125x
390p
27p
1%
1
3129x
110µH
7150
1
2
1
3160 82k
2158B
1n *680p
ST
21
47
3
LW
4.7k