Philips MC77 - ECO6 Tuner Board; TUNER BOARD ECO6 Systems Cenelec

7B-17B-1
1
AM
Mixer
AM
Osc.
AM IF
IF1
IF2
FM
Det.
AM
Det.
37 33
RADIO IC
TEA 5762
TUNER BOARD
ECO 6
Systems Cenelec
1018 11
14
39
15 24
right
AM/FM
right
left
left
stereo
VCO
4140 36 193244 25
Stereo
Decoder
AFC
AFC +
AFC -
4 4
AGC
Pre-
scaler
Multi-
plexer
Charge
pump
Stabilizer
CONTROL
Reference
Oscillator
29 28 27
clock
data
enable
P1 P0
31 30
programmable
output ports
V
Loop
V
Loop
V
Loop
2 6
5 FM Osc.
C
D
450kHz450kHz450kHz
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
723
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
buffer ampl.
RDS
(MPX)
5
RDS
(MPX)
stereo
clock data
enable
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
Discriminator
10,7 MHz
Vdd
+FM
Vcc1
Vcc
Vcc2
MW/LW
AM-RF, AM-Osc.
1
Ant.
Osc.
out
GND
234 6 5
8 7
V
CC
V
varicap
MIXER
FM FRONTEND
IF
out
ECO6 Tuner Board
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
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11/03/2012
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