Block Diagram -Base Unit Section - Sony SPP-111 Service Manual

SPP-111
5-2. BLOCK DIAGRAM — BASE UNIT SECTION —
ANT1
TELESCOPIC
ANTENNA
BPF1
46MHz
1st
1st
CF102
MIX
MIX
10.68MHz
IN OUT
1st
40 38
MIX
RX RX
VCO PLL
43 44 42 46
L101
RX VT
BPF51
49MHz
TX
AMP
Q51
B+ (+9V)
REG
1
J301
IC302
DC IN 9V
CHARGE
+
REG
Q402
CHARGE
CHARGE
LIMITER
TERMINAL
Q403
CHARGE
– DET
Q401
04
MIX, IF AMP, DET
IC101 (1/3)
CF101
460kHz
2nd 2nd
IF
MIX MIX
AMP
OUT
IN 2nd IF-IN
36 34 32
MIX
RSSI
LOCAL TX
OSC PLL
LO1 LO2 TX-IN TX-OUT RSSI
3 4 1 47 22
X101
10.22MHz
TX
OSC
Q52
L52
TX VT
SYSTEM CONTROL
IC501
19
RSSI H/L
TX +B
SWITCH
Q54
22 TX +B CTRL
14
POW-DET
VOLTAGE
RESET
1 DET 3 12 RESET
Q302
IC301
3 B+ (+5.2V)
D401
CHARGE
18
CHG DET
– 19 –
B+ (+5.2V)
FL101
460kHz
RX LEVEL
EXPANDER
IC101 (2/3)
28
LPF
AF-OUT PRE-IN
QUAD 27 15 EXPANDER
PRE
AMP
D-COMP-IN
24
DATA
COMP
23
RV101
RSSI Hi
MODULATION
D51
FIL-OUT FIL-IN
9 10
SPLATTER
DATA LATCH
4
CONTROL
RX-DATA
7
TX-DATA
H-MUTE 6
6 7 8
3
CLK
DATA 2
STB 1
5
SIG-IN
DP 20
RING 30
DTMF 21
S301
HANDSET LOCATOR
16
PAGE
S302
DIAL MODE
DIAL MODE 17
P
10 9
X501
4.048MHz
D101
B+ (+5.2V)
RECEIVER
E-MUTE AMP
EXP-OUT RECE-IN R02
17 18 20
LINE TX
R01
19
DRIVE
Q202
COMPRESSOR
IC101 (3/3)
COMP-OUT MIC-IN
11 COMPRESSOR 14
C-MUTE
MIC
AMP
LIMITER
SIG-OUT
5
T
Signal path
: TX (To Tel Line)
: RX (From Tel Line)
: bell
– 20 –
MJ201
LINE
D205
RECT
T201
LINE
TRANSFORMER
LINE TX
DRIVE
Q203
B+(+5.2V)
HOOK-SW
D203
PH202
D204
RING DET
PH201
HOOK-SW
DRIVE
Q201