Philips FWM35/21, Руководство по обслуживанию

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7B-1 7B-1
1
AM Mix
er
AM Osc.
AM IF
IF1
IF2
FM Det.
AM Det.
37
33
RADIO IC
TEA 5762
TUNER PART
ECO 6
Systems Cenelec
10
18
11
14
39
15 24
right
AM/FM
right
left
left
stereo
VCO
41
40
36
19
32
44
25
Stereo Decoder
AFC
AFC +
AFC -
4 4
AG
C
Pre- scaler
Multi- pl
exe
r
Charge pump
Stabiliz
er
CONTR
OL
Ref
erence
Oscillator
29 28 27
cloc
k
data
enab
le
P1 P0
31 30
prog
rammab
le
output por
ts
V
Loop
V
Loop
V
Loop
2 6 5
FM Osc.
C
D
450kHz
450kHz
450kHz
20
75kHz
V
Stab
AV
Stab
BV
Stab
B
V
Stab
A
V
Stab
B
10,7 MHz
10,7 MHz
35
9
Vdd
Vcc1
7
23
V
Stab
A
V
Stab
B
38 34
22
Vcc2
8
ECO6 Systems Cenelec, 140499
V
Loop
+FM
AM-RF
AM-Osc.
FM-IF 1
FM-IF 2
LF filter
MPX
buff
er ampl.
RDS (MPX)
5
RDS (MPX)
stereo
cloc
k
data
enab
le
Version
3
1120
AM-IF 1
AM-IF 2
AM-AFC
1 8
AM
Frontend
2
AM-FRAME AERIAL
B
1103
1101 (1102)
A
FM
AM/FM
Discr
iminator
10,7 MHz
Vdd
+FM Vcc1
Vcc
Vcc2
MW/L
W
AM-RF
,
AM-Osc.
1
Ant.
Osc. out
GND 23
4
6
5
8 7
V
CC
V
var icap
MIXER
FM FR
ONTEND
IF out
ECO6 Tuner PART
version:
SYSTEMS CENELEC
TABLE OF CONTENTS
Blockdiagram...................................................................7B-1
Schematic Diagram.........................................................7B-2
Component Layout..........................................................7B-3
Adjustment table .............................................................7B-3
Electrical Partslist............................................................7B-4
BLOCK DIAGRAM