Panasonic SV-MP120VE, Service Manual

Page: 36 / 39

TUNER BLOCK
A
IC1
15
14
5
7
9
11
13 12
10
8
6
3
4
1
2
17
16
19
18
21
20
23
22
24
CN1
(TO MAIN CIRCUIT CN2)
HEADPHONE
SV-MP120V BLOCK DIAGRAM
TP48
TP47
S.S.G
F=87.5MHz
Mod=30%
Mod f=400Hz
233.0mV P-P
Radio (analog) Signal Line.
Notes :
MP3 and FM and IC REC Signal Line.
FM RF Signal Line.
Voltage from negative terminal of battery.
( )...MP3 position,[ ]...FM position.
No mark...MP3 and FM position.
C1BB00000997
FM TUNER
15
14
5 7 9
11
13
12
8 6
3
4 2
17
16
19
18
23 22 24 28 29 26 27
25
38
39
36
37
34
35
32
33
W/R
L GAIN
AGND
V CCD
RFI 1
RF GND
RFI 2
TAGC
CP
OUT
VCO TANK1
VCO TANK2
VCC (VCO)
DGND
VCCD
DA
TA
CLOCK
BUSENABLE
BUSMODE
SWPORT1
SWPORT1
XTAL1
XTAL2
LIMDEC1 LIMDEC2 TIFC
V
ref
MPXO
TMUTE
V
AFR
V
AFL
PILFIL
PHASEFIL
GAIN
STABILIZTION
RESONANCE
AMPLIFIER
LIMITER
DEMODULATOR
POWER
SUPPLY
SOFT
MUTE
MPX
DECODER
CRYSTAL
OSCILLATOR
SOFTWARE
PROGRAMMABLE
PROT
I/O-MIXER
1st FM
AGC
N1
2
TUNING SYSTEM
VCO
IF CENTER
FREQUENCY
ADJUST
LEVEL
ADC
IF
COUNTER
MUX
Programmable
divider output
reference frequency
divider output
I C-BUS
AND
3-WIRE BUS
2
momo
pilot
SDS
X1
13MHz
L1
LOOP SW
FM RF Signal Line
1 2
3
4
VIN VOUT
CE VSS
IC6
[0] (0)
[2.8]
(0)
[3.25]
(1.35)
IC6
Regulate
Voltage
[3]
(0)
EXT GND
VOUT VDD CE
5
3
4
1
2
0
[1.38]
[3.26]
(1.36) [3.26]
(1.36)
[3.0]
(0)
(0)
0
[1.40]
(1.45)
AAA
SIZE(LR03,AM-4)
BA
TTER
Y
ICP1
C0DBAGZ0021
DC-DC CONV
IC9
D1
S2
S1 D2 G1
G2
[1.33]
(1.33)
[0]
(0)
[0]
(0)
[1.33]
(1.33)
[1.33]
(1.33)
[1.33]
(1.33)
1 2 3
4 5 6
Q12
MCH6616
MUTE