Sony SPP-114, Руководство по обслуживанию

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18 18
5-2. BLOCK DIAGRAM — BASE UNIT SECTION —
SPP-114
BPF1
46MHz
BPF51
49MHz
CF101
460KHz
ANT1
TELESCOPIC
ANTENNA
1st
MIX
RX
PLL
TX
PLL
RX
VCO
1st
MIX
IN
2nd
MIX
IN
IF-IN PRE-IN EXP-OUT AF-OUT
D-COMP-IN
1st
MIX
OUT
2nd
MIX
QUAD
2nd
MIX
OUT
CF102
10.68MHz
RSSI
EXPANDER
PRE
AMP
LPF
IF
AMP
RX-OUT
D-COMP-OUT
VCO-CONT VCO2 VCO1
40 38 36 34
46 42 44 43
LOCAL
OSC
LO2 LO1
4
TX-IN TX-OUT RSSI
1 47 22 23 3
X101
10.22MHz
L101
RX VT
L52
TX VT
32 27
DATA
COMP
24
TX
AMP
Q51
TX
OSC
Q52
MODULATION
D51
19 4
7
SYSTEM CONTROL
IC501
RSSI H/L RX-DATA
TX-DATA
6
H-MUTE
3
CLK
FIL-OUT COMP-OUT MIC-IN
MIC
AMP
FIL-IN
SPLATTER
9 10
6
11 14
DATA LATCH
CONTROL
CLK
7
DATA
8
STB
5
28
15 17 18
E-MUTE
20
19
RECE-IN R02
R01
RECEIVER
AMP
EXPANDER
IC101 (2/3)
C-MUTE
COMPRESSOR
LIMITER
SIG-OUT
COMPRESSOR
IC101 (3/3)
2
DATA
1 STB
5
SIG-IN
20 DP
30
9 10
12
14
RING
21
DTMF
16
PAGE
17
18
DIAL MODE
X501
4.048MHz
RESET
Q302
REG
Q301
TX +B
SWITCH
Q54
CHARGE
DET
Q401
CHARGE
REG
Q402
CHARGE
LIMITER
Q403
VOLTAGE
DET
IC301
1 2
CHG DET
RESET
POW-DET
22 TX +B CTRL
OSC1 OSC2
B+ (+9V)
B+ (+5.2V)
–
+
CHARGE
TERMINAL
FL101
460KHz
RX LEVEL
B+ (+5.2V)
MIX, IF AMP, DET
IC101 (1/3)
04
LINE TX
DRIVE
Q202
D401
CHARGE
J301
DC IN 9V
S301
HANDSET LOCATOR
S302
DIAL MODE
T
P
B+ (+5.2V)
RELAY
DRIVE
Q201
RING
DET
PH201
D201
D204
D203
RY201
T201
LINE
TRANSFORMER
MJ201
LINE
D101
Signal path
: TX (To Tel Line)
: RX (From Tel Line)
: bell
RV101
RSSI Hi