Block Diagram -Handset Section - Sony SPP-111 Service Manual

5-3. BLOCK DIAGRAM — HANDSET SECTION —
ANT2
HELICAL
ANTENNA
BPF1
49MHz
1st
MIX
1st
OUT
MIX IN 1st
40
MIX
RX
VCO
43 44
L102
RX VT
BPF51
46MHz
TX
AMP
Q51
CN202
+
CHARGE
TERMINAL D202
–
CN201
RECHARGEABLE
BATTERY
BP-T16
DC 3.6V
270mAh
04
MIX, IF AMP, DET
IC101 (1/3)
CF101
460kHz
2nd
2nd
CF102
MIX
MIX
10.68MHz
OUT
IN 2nd
38 36 34
MIX
RX LOCAL TX
PLL OSC PLL
LO1 LO2
TX-IN
42 46 3 4 1
X101
10.2MHz
TX
OSC
Q52
TX +B
SWITCH
Q54
D501
B+ (+3.6V)
TALK/BATT LOW
B+
(+3.6V)
VOLTAGE
RESET
1 DET 3
Q201
IC201
D504
HOLD/RESET
Q501
D502
– 21 –
B+ (+3.6V)
FL101
460kHz
RX LEVEL
28
QUAD
IF
AMP LPF
IF-IN AF-OUT PRE-IN
32 QUAD 27 15
RSSI
D-COMP-IN
24
DATA
COMP
TX-OUT RSSI
47 22 23
RV101
RSSI Hi
MODULATION
D51
FIL-OUT
9
SPLATTER
L52
TX VT
SYSTEM CONTROL
IC501
45 8
RSSI RX-DATA
H/L
TX DATA 9
13 10
TX +B CTRL TX DATA
H. MUTE 46
48 LED
PLL-CLK 7
5
PLL-DATA
PLL-STB 4
38 CHG-DET BATT-LOW 37
SIG-IN 3
28
MIC
DEEP 11
21 RESET
KEY MATRIX
5
S1-S19
12 ROW1-ROW5
HOLD
22 ACT3
4
23 COL0-COL3
ACT4
14 RX +B CTRL
17 20
X501
4.048MHz
S101
VOL
H
EXPANDER
IC101 (2/3)
M
L
RECE-IN
18
E-MUTE
EXP-OUT
EXPANDER 17
PRE
AMP
COMPRESSOR
IC101 (3/3)
FIL-IN COMP-OUT MIC-IN
10 11
COMPRESSOR
C-MUTE
MIC
AMP
LIMITER
BATT VCC1
DATA LATCH
ALARM
CONTROL
SIG-OUT
6 7 8 21 5
BATT LOW
SWITCH
Q502
BUZZER
DRIVE
Q301
Signal path
: TX (To Tel Line)
: RX (From Tel Line)
– 22 –
SPP-111
RECEIVER
AMP
+
R02
20 SP1
SPEAKER
–
R01
19
MIC1
14
MICROPHONE
B+ (+3.6V)
33
BZ301
BUZZER