Marantz SR4000 Service Manual - Page 25

Tuner Board Eco5

Get Marantz SR4000 PDF manuals and user guides View all Marantz SR4000 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 25 highlights

7B-1 TUNER BOARD ECO5 TABLE OF CONTENTS Blockdiagram 7B-1 Adjustment table 7B-2 Component layout 7B-3 Circuit diagram 7B-4 Parts list 7B-5 7B-1 BLOCK DIAGRAM TUNER BOARD ECO 5 systems 1101 (1102) VLoop FM-RF VStabA 10,7 MHz VStabB 10,7 MHz buffer ampl. Discriminator 5 10,7 MHz LF filter RDS (MPX) VCO A FM 3 FM-Osc. VLoop 43 FM frontend 5 AM-Osc. AM-FRAME AERIAL VLoop 1103 AM-RF 6 2 AM Frontend 39 37 35 33 18 10 FM Mixer FM Osc. AM Osc. AM Mixer IF1 Prescaler Multiplexer IF2 FM Det. RADIO IC TEA 5757T AM IF AM Det. 11 9 right 15 Stereo Decoder left 14 stereo 24 clock27 data 28 CONTROL enable29 C VLoop AGC B 18 Charge VLoop pump VStabA 38 34 VStabB 23 7 22 40 41 36 AFC 44 32 19 20 AFC AFC + P1 31 programmable output ports P0 30 Reference Oscillator 25 Vdd Vcc1 Vcc2 450kHz 450kHz VStabA VStabB 450kHz 2 VStabB 75kHz Vcc1 Vdd Vcc2 Vcc 1124 4 4 right 4 left 1 Version 3 stereo 1126 1121 46 clock data enable 1 RDS (MPX) 1 MW/LW AM-RF, AM-Osc. ECO5 sys., 240698

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
7B-1
7B-1
TABLE OF CONTENTS
Blockdiagram
...........................................................
7B-1
Adjustment table
......................................................
7B-2
Component layout
....................................................
7B-3
Circuit diagram
.........................................................
7B-4
Parts list
...................................................................
7B-5
TUNER BOARD ECO5
BLOCK DIAGRAM
1
FM
frontend
AM
Frontend
FM
Osc.
FM
Mixer
AM
Mixer
AM
Osc.
AM IF
IF1
IF2
FM
Det.
AM
Det.
2
3
39
37
33
FM
RADIO IC
TEA 5757T
TUNER BOARD
ECO 5
systems
1101
(1102)
LF filter
10
18
11
15
14
24
left
left
buffer ampl.
RDS
(MPX)
RDS
(MPX)
right
right
stereo
VCO
41
40
36
19
32
44
25
Stereo
Decoder
1124
Vcc1
Vdd
Vcc2
AFC
AFC +
AFC -
4
4
AGC
Pre-
scaler
Multi-
plexer
Charge
pump
CONTROL
AM-FRAME AERIAL
Reference
Oscillator
1126
1
4
1
4
6
1
stereo
27
28
29
clock
data
enable
clock
data
enable
Version
P1
P0
MW/LW
31
30
programmable
output ports
AM-RF,
AM-Osc.
3
5
1121
V
Loop
V
Loop
V
Loop
V
Loop
V
Loop
2
6
5
43
1103
B
C
450kHz
450kHz
450kHz
20
75kHz
V
Stab
A
V
Stab
B
V
Stab
B
V
Stab
A
V
Stab
B
10,7 MHz
10,7 MHz
35
9
Vcc
Vdd
Vcc1
7
23
V
Stab
A
V
Stab
B
38
34
22
Vcc2
8
ECO5 sys., 240698
A
AM-RF
AM-Osc.
FM-Osc.
FM-RF
Discriminator
10,7 MHz